13,443 results on '"Predictions"'
Search Results
2. Neural encoding of melodic expectations in music across EEG frequency bands.
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Galeano‐Otálvaro, Juan‐Daniel, Martorell, Jordi, Meyer, Lars, and Titone, Lorenzo
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COGNITION , *ENTROPY , *STIMULUS & response (Psychology) , *ACOUSTICS , *EXPERTISE - Abstract
The human brain tracks regularities in the environment and extrapolates these to predict future events. Prior work on music cognition suggests that low‐frequency (1–8 Hz) brain activity encodes melodic predictions beyond the stimulus acoustics. Building on this work, we aimed to disentangle the frequency‐specific neural dynamics linked to melodic prediction uncertainty (modelled as entropy) and prediction error (modelled as surprisal) for temporal (note onset) and content (note pitch) information. By using multivariate temporal response function (TRF) models, we re‐analysed the electroencephalogram (EEG) from 20 subjects (10 musicians) who listened to Western tonal music. Our results show that melodic expectation metrics improve the EEG reconstruction accuracy in all frequency bands below the gamma range (< 30 Hz). Crucially, we found that entropy contributed more strongly to the reconstruction accuracy enhancement compared to surprisal in all frequency bands. Additionally, we found that the encoding of temporal, but not content, information metrics was not limited to low frequencies, rather it extended to higher frequencies (> 8 Hz). An analysis of the TRF weights revealed that the temporal predictability of a note (entropy of note onset) may be encoded in the delta‐ (1–4 Hz) and beta‐band (12–30 Hz) brain activity prior to the stimulus, suggesting that these frequency bands associate with temporal predictions. Strikingly, we also revealed that melodic expectations selectively enhanced EEG reconstruction accuracy in the beta band for musicians, and in the alpha band (8–12 Hz) for non‐musicians, suggesting that musical expertise influences the neural dynamics underlying predictive processing in music cognition. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Consensus Paper: Cerebellum and Reward.
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Manto, Mario, Adamaszek, Michael, Apps, Richard, Carlson, Erik, Guarque-Chabrera, Julian, Heleven, Elien, Kakei, Shinji, Khodakhah, Kamran, Kuo, Sheng-Han, Lin, Chi-Ying R., Joshua, Mati, Miquel, Marta, Mitoma, Hiroshi, Larry, Noga, Péron, Julie Anne, Pickford, Jasmine, Schutter, Dennis J. L. G., Singh, Manpreet K., Tan, Tommy, and Tanaka, Hirokazu
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REWARD (Psychology) , *DIETARY patterns , *SPINAL cord , *CEREBRAL cortex , *AFFECTIVE forecasting (Psychology) - Abstract
Cerebellum is a key-structure for the modulation of motor, cognitive, social and affective functions, contributing to automatic behaviours through interactions with the cerebral cortex, basal ganglia and spinal cord. The predictive mechanisms used by the cerebellum cover not only sensorimotor functions but also reward-related tasks. Cerebellar circuits appear to encode temporal difference error and reward prediction error. From a chemical standpoint, cerebellar catecholamines modulate the rate of cerebellar-based cognitive learning, and mediate cerebellar contributions during complex behaviours. Reward processing and its associated emotions are tuned by the cerebellum which operates as a controller of adaptive homeostatic processes based on interoceptive and exteroceptive inputs. Lobules VI-VII/areas of the vermis are candidate regions for the cortico-subcortical signaling pathways associated with loss aversion and reward sensitivity, together with other nodes of the limbic circuitry. There is growing evidence that the cerebellum works as a hub of regional dysconnectivity across all mood states and that mental disorders involve the cerebellar circuitry, including mood and addiction disorders, and impaired eating behaviors where the cerebellum might be involved in longer time scales of prediction as compared to motor operations. Cerebellar patients exhibit aberrant social behaviour, showing aberrant impulsivity/compulsivity. The cerebellum is a master-piece of reward mechanisms, together with the striatum, ventral tegmental area (VTA) and prefrontal cortex (PFC). Critically, studies on reward processing reinforce our view that a fundamental role of the cerebellum is to construct internal models, perform predictions on the impact of future behaviour and compare what is predicted and what actually occurs. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Human and Algorithmic Predictions in Geopolitical Forecasting: Quantifying Uncertainty in Hard-to-Quantify Domains.
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Mellers, Barbara A., McCoy, John P., Lu, Louise, and Tetlock, Philip E.
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PREDICTION models , *ARTIFICIAL intelligence , *POPULATION geography , *UNCERTAINTY , *PRACTICAL politics , *QUALITY assurance , *FORECASTING , *ALGORITHMS , *CLINICAL prediction rules - Abstract
Research on clinical versus statistical prediction has demonstrated that algorithms make more accurate predictions than humans in many domains. Geopolitical forecasting is an algorithm-unfriendly domain, with hard-to-quantify data and elusive reference classes that make predictive model-building difficult. Furthermore, the stakes can be high, with missed forecasts leading to mass-casualty consequences. For these reasons, geopolitical forecasting is typically done by humans, even though algorithms play important roles. They are essential as aggregators of crowd wisdom, as frameworks to partition human forecasting variance, and as inputs to hybrid forecasting models. Algorithms are extremely important in this domain. We doubt that humans will relinquish control to algorithms anytime soon—nor do we think they should. However, the accuracy of forecasts will greatly improve if humans are aided by algorithms. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Online Unit Profit Knapsack with Predictions.
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Boyar, Joan, Favrholdt, Lene M., and Larsen, Kim S.
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ONLINE algorithms , *KNAPSACK problems , *FORECASTING , *BACKPACKS - Abstract
A variant of the online knapsack problem is considered in the setting of predictions. In Unit Profit Knapsack, the items have unit profit, i.e., the goal is to pack as many items as possible. For Online Unit Profit Knapsack, the competitive ratio is unbounded. In contrast, it is easy to find an optimal solution offline: Pack as many of the smallest items as possible into the knapsack. The prediction available to the online algorithm is the average size of those smallest items that fit in the knapsack. For the prediction error in this hard online problem, we use the ratio r = a a ^ where a is the actual value for this average size and a ^ is the prediction. We give an algorithm which is e - 1 e -competitive, if r = 1 , and this is best possible among online algorithms knowing a and nothing else. More generally, the algorithm has a competitive ratio of e - 1 e r , if r ≤ 1 , and e - r e r , if 1 ≤ r < e . Any algorithm with a better competitive ratio for some r < 1 will have a worse competitive ratio for some r > 1 . To obtain a positive competitive ratio for all r, we adjust the algorithm, resulting in a competitive ratio of 1 2 r for r ≥ 1 and r 2 for r ≤ 1 . We show that improving the result for any r < 1 leads to a worse result for some r > 1 . [ABSTRACT FROM AUTHOR]
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- 2024
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6. Global, regional, and national burdens of atopic dermatitis under 14: a trend analysis and future prediction based on the global burden of disease study 2019.
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Wang, Zhiqin, Liang, Xiaofeng, Li, Xiaowei, Zhou, Zhen, Zhang, Zhiwen, Zhao, Jiayu, and Gao, Xiuzhong
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Objective: The aim is to evaluate the global, regional, and national trends in the burden of children and adolescents under 14 from 1990 to 2019, as well as future trend predictions. Methods: In Global Burden of Disease (GBD), we reported the incidence, prevalence rate and the years lived with disability (YLDs), the incidence per 100,000 people, and the average annual percentage change (AAPC). We further analyzed these global trends by age, gender, and social development index (SDI). We use joinpoint regression analysis to determine the year with the largest global trend change. Bayesian age-period-cohort (BAPC) was used for predictions. Results: From 1990 to 2019, the incidence rate, prevalence and YLDs of AD under 14 years old showed a downward trend. The incidence rate of AD among people under 5 years old has the largest decline [AAPC: -0.13 (95% CI: -0.15 to -0.11), P < 0.001]. The incidence rate, prevalence and YLDs of AD in women were higher than those in men regardless of age group. Regional, Asia has the highest AD incidence rate in 2019. National, Mongolia has the highest AD incidence rate in 2019. The largest drop in AD incidence rate, prevalence and YLDs between 1990 and 2019 was in the United States. Conclusion: From 1990 to 2019, the global incidence rate of children and adolescents under 14 declined. With the emergence of therapeutic drugs, the prevalence and YLDs rate declined significantly. From 2020 to 2030, there is still a downward trend. [ABSTRACT FROM AUTHOR]
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- 2024
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7. First Czech record of the Asian hornet (Vespa velutina nigrithorax) and a climatic prediction of its spread in the Czech Republic.
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Walter, Jan, Görner, Tomáš, Šulda, Luděk, Bureš, Jan, Myslík, Zdeněk, Milička, Radek, Bartoňová, Alena Sucháčková, Beneš, Petr, Biemann, Ondřej, and Brus, Jan
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The Asian or yellow-legged hornet Vespa velutina nigrithorax has been accidentally introduced into several European countries. This invasive species has an impact on entomofauna and plant biodiversity through reduction of pollinators as well as affects apiculture. We present the first record of the species in the Czech Republic, notes associated with this record, its COI barcode, and modelled potential distribution. A specimen of Vespa velutina nigrithorax was recorded in October 2023 in Pilsen city (West Bohemia, Czech Republic). The nest was traced by observing released individuals, detected on Black locust (Robinia pseudoacacia), and removed. The COI barcode confirmed the European origin of this nest. The species either followed natural routes from Bavaria (Germany) or was introduced by transportation. A species distribution model (Maxent) trained on European distribution showed that the western Czech Republic is more suitable for the species than its eastern parts, as the species likely prefers lower continentality. During 2024, Vespa velutina nigrithorax was also recorded in Hrádek u Rokycan (West Bohemia, Czech Republic). Recently, these records represented an isolated occurrence in the Czech Republic; however further expansion of this invasive species is expected. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Department of Humanities and Social Sciences Indian Institute of Technology Roorkee Uttarakhand, India.
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JUMAAH, SAIF ALI ABBAS
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MAGIC realism (Literature) ,NARRATION ,GROTESQUE ,TECHNICAL institutes ,FORECASTING - Abstract
Saadawi's novel Frankenstein in Baghdad vividly portrays the grotesque amidst the backdrop of war-torn Baghdad. The grotesque, in all its different dimensions, is a defining feature of Saadawi's novel. This paper will look at how magical realism works as a narrative strategy for portraying the horrors of conflict in a surreal way. Magical realist strategies and expression of the grotesque, when the line between reality and fantasy is blurred, are viewed and analysed in this study through a close reading of Saadawi's text. This paper investigates the utilisation of magical realism as a narrative strategy to depict the horrors of conflict in a surrealistic manner. Through a meticulous analysis of Saadawi's text, this study explores how magical realism serves as a conduit for the expression of the grotesque, blurring the lines between reality and fantasy. By delving into the intricate interplay between magical elements and the harsh realities of war, this research aims to unravel the deeper thematic implications embedded within Saadawi's narrative. By incorporating elements of identity fragmentation, moral uncertainty, and societal disintegration, this investigation seeks to offer a comprehensive understanding of the profound impact of magical realism on the construction of narrative meaning in Frankenstein in Baghdad. [ABSTRACT FROM AUTHOR]
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- 2024
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9. The Growth of Chinese Multinationals
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Mike Peng
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chinese multinationals ,emerging economies ,growth ,predictions ,Business ,HF5001-6182 - Abstract
The growth of Chinese multinationals has become a fascinating component within the larger literature on the growth of firms in and out of emerging economies. Leveraging the latest and most-comprehensive data, Casanova and Miroux’s (2024) research enables us to evaluate the validity of predictions made by Peng and Heath (1996), Rugman and Li (2007), and Peng (2012). Overall, the growth of Chinese multinationals reported by Casanova and Miroux has not supported earlier predictions, but has increasingly supported more recent predictions. Casanova and Miroux’s research therefore has made significant contributions by providing much-needed empirical checks for the claims made by earlier scholars, thus revealing both the strengths and weaknesses of this rapidly evolving literature.
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- 2024
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10. A constructionist analysis of gapping against the background of generative analyses
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Reiner Tabea
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ellipsis ,gapping ,generative grammar ,formal semantics ,construction grammar ,predictions ,Language. Linguistic theory. Comparative grammar ,P101-410 - Abstract
The present contribution starts from Goldberg and Perek’s (2019) analysis of gapping within a constructionist framework. The authors promote their analysis as surpassing non-constructionist takes on gapping and ellipsis more generally. In particular, they claim predictive power. That this is not the whole truth is explained in detail in this contribution. It is shown which predictions can be made from their perspective versus from a generative perspective and it is discussed whether they are borne out. Furthermore, I highlight how the predictions relate to the fundamentals of the respective theories and, as a consequence, how they differ in kind.
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- 2024
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11. Data Analytics for Predicting Situational Developments in Smart Cities: Assessing User Perceptions.
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Kharlamov, Alexander A. and Pilgun, Maria
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DATA analytics , *SOCIAL conflict , *QUALITY of life , *SMART cities , *BIG data - Abstract
The analysis of large volumes of data collected from heterogeneous sources is increasingly important for the development of megacities, the advancement of smart city technologies, and ensuring a high quality of life for citizens. This study aimed to develop algorithms for analyzing and interpreting social media data to assess citizens' opinions in real time and for verifying and examining data to analyze social tension and predict the development of situations during the implementation of urban projects. The developed algorithms were tested using an urban project in the field of transportation system development. The study's material included data from social networks, messenger channels and chats, video hosting platforms, blogs, microblogs, forums, and review sites. An interdisciplinary approach was utilized to analyze the data, employing tools such as Brand Analytics, TextAnalyst 2.32, GPT-3.5, GPT-4, GPT-4o, and Tableau. The results of the data analysis showed identical outcomes, indicating a neutral perception among users and the absence of social tension surrounding the project's implementation, allowing for the prediction of a calm development of the situation. Additionally, recommendations were developed to avert potential conflicts and eliminate sources of social tension for decision-making purposes. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Combining Forecasts From Advisors: The Impact of Advice Independence and Verbal Versus Numeric Format.
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Strueder, Jeremy D. and Windschitl, Paul D.
- Abstract
Past research on advice-taking has suggested that people are often insensitive to the level of advice independence when combining forecasts from advisors. However, this has primarily been tested for cases in which people receive numeric forecasts. Recent work by Mislavsky and Gaertig (2022) shows that people sometimes employ different strategies when combining verbal versus numeric forecasts about the likelihood of future events. Specifically, likelihood judgments based on two verbal forecasts (e.g., "rather likely") are more often extreme (relative to the forecasts) than are likelihood judgments based on two numeric forecasts (e.g., "70% probability"). The goal of the present research was to investigate whether advice-takers' use of combination strategies can be sensitive to advice independence when differences in independence are highly salient and whether sensitivity to advice independence depends on the format in which advice is given. In two studies, we found that advice-takers became more extreme with their own likelihood estimate when combining forecasts from advisors who use separate evidence, as opposed to the same evidence. We also found that two verbal forecasts generally resulted in more extreme combined likelihood estimates than two numeric forecasts. However, the results did not suggest that sensitivity to advice independence depends on the format of advice. Public Significance Statement: An important factor when combining forecasts from advisors is whether advisors are relying on the same or separate evidence to generate their forecasts. People have often been found to be insensitive to such differences in advisor independence. However, in the present work, we found that people can indeed use information about advice independence in a normative matter when differences in advice independence are sufficiently salient. Importantly, we also found that this sensitivity was not moderated by the format in which forecasts are presented. Participants in our studies attended to advice independence both when forecasts were in a verbal format (e.g., rather likely) and when both were in a numeric format (e.g., 70% probability). Replicating prior work (Mislavsky & Gaertig, 2022; Teigen et al., 2023), we also found evidence of a general advice format effect: When combining verbal as opposed to numeric forecasts, people's final likelihood estimates became more extreme (closer to certainty). [ABSTRACT FROM AUTHOR]
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- 2024
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13. A new approach for hydrograph data interpolation and outlier removal for vector autoregressive modelling: a case study from the Odra/Oder River.
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Halicki, Michał and Niedzielski, Tomasz
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OUTLIER detection , *AUTOREGRESSIVE models , *VECTOR autoregression model , *STANDARD deviations , *MULTIVARIATE analysis , *WATER levels - Abstract
This study presents a new approach for predicting water levels of the Odra/Oder river using vector autoregressive models (VAR). We use water level time series from 27 gauging stations, on which we interpolate no-data gaps using the LinAR method and detect outliers with two separate methods: the extreme values (EV) approach and the isolation forest (IFO) algorithm. Before removing potential outliers, we propose a hydrological evaluation based on multivariate data analysis. Finally, we consider three separate data scenarios, i.e. LinAR (no outlier rejection), EV, and IFO. VAR models for six prediction gauges were built in a moving window manner on the most recent 720 hourly water levels prior to each prediction. The analysis covered the time range from January 2016 to May 2022 and resulted in ≈ 1,000,000 water level forecasts (3 scenarios x 6 gauges x 55,000 hourly time steps) with lead time of 72 h. The analysis of root mean squared error (RMSE) indicates that the VAR model performs well, especially for 24-hour predictions, with RMSE values ranging from 8 to 28 cm. The model was also found to have skills in predicting a rising limb of a hydrograph. Our numerical experiments showed the susceptibility of the VAR predictions to artefacts. The IFO method was found to detect outliers skilfully, which allowed to produce the most accurate VAR-based predictions. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Public health nurse perspectives on predicting nonattendance for cervical cancer screening through classification, ensemble, and deep learning models.
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Devi, Seeta, Gangarde, Rupali, Deokar, Shubhangi, Muqeemuddin, Sayyed Faheemuddin, Awasthi, Sanidhya Rajendra, Shekhar, Sameer, Sonchhatra, Raghav, and Joshi, Sonopant
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PUBLIC health nurses , *PATIENT compliance , *HEALTH services accessibility , *RANDOM forest algorithms , *PREDICTION models , *COMMUNITY health nurses , *RECEIVER operating characteristic curves , *EARLY detection of cancer , *PRIMARY health care , *LOGISTIC regression analysis , *DESCRIPTIVE statistics , *NURSES' attitudes , *DEEP learning , *ARTIFICIAL neural networks , *WOMEN'S health , *ALGORITHMS , *SENSITIVITY & specificity (Statistics) ,CERVIX uteri tumors - Abstract
Objectives: Women's attendance to cervical cancer screening (CCS) is a major concern for healthcare providers in community. This study aims to use the various algorithms that can accurately predict the most barriers of women for nonattendance to CS. Design: The real‐time data were collected from women presented at OPD of primary health centers (PHCs). About 1046 women's data regarding attendance and nonattendance to CCS were included. In this study, we have used three models, classification, ensemble, and deep learning models, to compare the specific accuracy and AU‐ROC for predicting non‐attenders for CC. Results: The current model employs 22 predictors, with soft voting in ensemble models showing slightly higher specificity (96%) and sensitivity (93%) than weighted averaging. Bagging excels with the highest accuracy (98.49%), specificity (97.3%), and ideal sensitivity (100%) with an AUC of 0.99. Classification models reveal Naive Bayes with higher specificity (97%) but lower sensitivity (91%) than Logistic Regression. Random Forest and Neural Network achieve the highest accuracy (98.49%), with an AUC of 0.98. In deep learning, LSTM has an accuracy of 95.68%, higher specificity (97.60%), and lower sensitivity (93.42%) compared to other models. MLP and NN showed the highest AUC values of 0.99. Conclusion: Employing ensemble and deep learning models proved most effective in predicting barriers to nonattendance in cervical screening. [ABSTRACT FROM AUTHOR]
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- 2024
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15. The Development of a Thermodynamic Database for Calculation and Prediction of Phase Equilibria in High-Temperature Refractory Alloys: A Tribute to Ted Massalski.
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Spencer, P. J.
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REFRACTORY materials , *DATABASE design , *PHASE equilibrium , *MISSING data (Statistics) , *DATABASES - Abstract
There is an increasing demand for materials capable of withstanding ever-higher temperatures. However, because the difficulties associated with carrying out experimental investigations at very high temperatures are significant, the published information relating to the phase stability of potential refractory materials is, in many instances, still lacking. The work described in this paper attempts to rectify this deficit through the on-going development of a thermodynamic database for high-temperature materials based on carbides, nitrides, borides, and silicides. Because of technological requirements of high-temperature stability and strength, combined with lightness, these are the materials that come into question most frequently for high-temperature applications. In developing the present database, and to ensure reliability of its use, emphasis has been placed on the need to maintain the compatibility of data and modeling when assessing experimental data and estimating missing values. The methods used to achieve compatibility of published information are described and calculations of phase equilibria relevant to the industrial application of various refractory materials are presented. The similarity to, and the importance of the scientific background and published work of Ted Massalski for the work of the present author is stressed. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Predicting Scientific Breakthroughs Based on Structural Dynamic of Citation Cascades.
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Yu, Houqiang, Liang, Yian, and Xie, Yinghua
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QUANTUM entropy , *CITATION networks , *TOPOLOGICAL entropy , *DYNAMIC testing - Abstract
Predicting breakthrough papers holds great significance; however, prior studies encountered challenges in this task, indicating a need for substantial improvement. We propose that the failure to capture the dynamic structural-evolutionary features of citation networks is one of the major reasons. To overcome this limitation, this paper introduces a new method for constructing citation cascades of focus papers, allowing the creation of a time-series-like set of citation cascades. Then, through a thorough review, three types of structural indicators in these citation networks that could reflect breakthroughs are identified, including certain basic topological metrics, PageRank values, and the von Neumann graph entropy. Based on the time-series-like set of citation cascades, the dynamic trajectories of these indicators are calculated and employed as predictors. Using the Nobel Prize-winning papers as a landmark dataset, our prediction method yields approximately a 7% improvement in the ROC-AUC score compared to static-based prior methods. Additionally, our method advances in achieving earlier predictions than other previous methods. The main contribution of this paper is proposing a novel method for creating citation cascades in chronological order and confirming the significance of predicting breakthroughs from a dynamic structural perspective. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Deep learning with autoencoders and LSTM for ENSO forecasting.
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Ibebuchi, Chibuike Chiedozie and Richman, Michael B.
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SOUTHERN oscillation , *OCEAN temperature , *MACHINE learning , *LEAD time (Supply chain management) ,EL Nino - Abstract
El Niño Southern Oscillation (ENSO) is the prominent recurrent climatic pattern in the tropical Pacific Ocean with global impacts on regional climates. This study utilizes deep learning to predict the Niño 3.4 index by encoding non-linear sea surface temperature patterns in the tropical Pacific using an autoencoder neural network. The resulting encoded patterns identify crucial centers of action in the Pacific that serve as predictors of the ENSO mode. These patterns are utilized as predictors for forecasting the Niño 3.4 index with a lead time of at least 6 months using the Long Short-Term Memory (LSTM) deep learning model. The analysis uncovers multiple non-linear dipole patterns in the tropical Pacific, with anomalies that are both regionalized and latitudinally oriented that should support a single inter-tropical convergence zone for modeling efforts. Leveraging these encoded patterns as predictors, the LSTM - trained on monthly data from 1950 to 2007 and tested from 2008 to 2022 - shows fidelity in predicting the Niño 3.4 index. The encoded patterns captured the annual cycle of ENSO with a 0.94 correlation between the actual and predicted Niño 3.4 index for lag 12 and 0.91 for lags 6 and 18. Additionally, the 6-month lag predictions excel in detecting extreme ENSO events, achieving an 85% hit rate, outperforming the 70% hit rate at lag 12 and 55% hit rate at lag 18. The prediction accuracy peaks from November to March, with correlations ranging from 0.94 to 0.96. The average correlations in the boreal spring were as large as 0.84, indicating the method has the capability to decrease the spring predictability barrier. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Objective model selection with parallel genetic algorithms using an eradication strategy.
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Plante, Jean‐François, Larocque, Maxime, and Adès, Michel
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SUPERVISED learning , *PARALLEL algorithms , *FEATURE selection , *INSPECTION & review , *NATURAL selection , *NULL hypothesis , *GENETIC algorithms - Abstract
In supervised learning, feature selection methods identify the most relevant predictors to include in a model. For linear models, the inclusion or exclusion of each variable may be represented as a vector of bits playing the role of the genetic material that defines the model. Genetic algorithms reproduce the strategies of natural selection on a population of models to identify the best. We derive the distribution of the importance scores for parallel genetic algorithms under the null hypothesis that none of the features has predictive power. They, hence, provide an objective threshold for feature selection that does not require the visual inspection of a bubble plot. We also introduce the eradication strategy, akin to forward stepwise selection, where the genes of useful variables are sequentially forced into the models. The method is illustrated on real data, and simulation studies are run to describe its performance. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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19. Utilising a Clinical Metabolomics LC-MS Study to Determine the Integrity of Biological Samples for Statistical Modelling after Long Term −80 °C Storage: A TOFI_Asia Sub-Study.
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Joblin-Mills, Aidan, Wu, Zhanxuan E., Sequeira-Bisson, Ivana R., Miles-Chan, Jennifer L., Poppitt, Sally D., and Fraser, Karl
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METABOLOMICS ,STATISTICAL sampling ,STATISTICAL models ,CULTURAL pluralism ,ETHNIC discrimination - Abstract
Biological samples of lipids and metabolites degrade after extensive years in −80 °C storage. We aimed to determine if associated multivariate models are also impacted. Prior TOFI_Asia metabolomics studies from our laboratory established multivariate models of metabolic risks associated with ethnic diversity. Therefore, to compare multivariate modelling degradation after years of −80 °C storage, we selected a subset of aged (≥5-years) plasma samples from the TOFI_Asia study to re-analyze via untargeted LC-MS metabolomics. Samples from European Caucasian (n = 28) and Asian Chinese (n = 28) participants were evaluated for ethnic discrimination by partial least squares discriminative analysis (PLS–DA) of lipids and polar metabolites. Both showed a strong discernment between participants ethnicity by features, before (Initial) and after (Aged) 5-years of −80 °C storage. With receiver operator characteristic curves, sparse PLS–DA derived confusion matrix and prediction error rates, a considerable reduction in model integrity was apparent with the Aged polar metabolite model relative to Initial modelling. Ethnicity modelling with lipids maintained predictive integrity in Aged plasma samples, while equivalent polar metabolite models reduced in integrity. Our results indicate that researchers re-evaluating samples for multivariate modelling should consider time at −80 °C when producing predictive metrics from polar metabolites, more so than lipids. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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20. Stochastic Assessment of Predictions and Uncertainties for Reflectance Losses Based on Experimental Data for Three Australian Sites
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Giovanni Picotti, Huy Truong Ba, Cody B. Anderson, Michael E. Cholette, Theodore Steinberg, and Bruce Leslie
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Reflectance ,Predictions ,Stochastic ,Uncertainties ,Experiments ,Physics ,QC1-999 - Abstract
A stochastic reflectance loss model is applied to extended datasets of experimental data collected at three sites in Australia, each representative of a different environment: urban, rural, and remote outback. The three sites are analysed in terms of TSP (Total Suspended Particles) or PM10 (Particulate Matter below 10µm in diameter), depending on the available dust sampler deployed at each location. Assessment of seasonal and daily patterns are also performed for further understanding of local phenomena likely to affect soiling in the area. Airborne dust concentration data are exploited to provide density distributions of expected daily reflectance losses. These mean losses for the three sites are 0.31 pp/day, 0.72 pp/day, and 0.77pp/day for the outback, rural, and urban location, respectively. These values and their distributions are paramount for evaluation of a prospective plant profitability, planning for operating plants cleaning scheduling, and assessment of a prospective CSP location at site selection phase. The developed methodology is capable of providing highly valuable information based on easily measurable airborne dust concentration data only, hence becoming a critical step for de-risking CSP plants financing and deployment.
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- 2024
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21. Long-term changes of methane emissions from rice cultivation during 2000 – 2060 in China: Trends, driving factors, predictions and policy implications
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Nanchi Shen, Jiani Tan, Wenjin Wang, Wenbo Xue, Yangjun Wang, Ling Huang, Gang Yan, Yu Song, and Li Li
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Methane ,Rice cultivation ,Emissions ,Predictions ,Policy implications ,Environmental sciences ,GE1-350 - Abstract
Regional budget assessments of methane (CH4) are critical for future climate and environmental management. CH4 emissions from rice cultivation (CH4-rice) constitute one of the most significant sources. However, previous studies mainly focus on historical emission estimates and lack consideration of future changes in CH4-rice under climate change or anthropogenic policy intervention, which hampers our understanding of long-term trends and the implementation of targeted emission reduction efforts. This study investigates the spatiotemporal variations of CH4-rice over the past two decades, using an integrated method to identify the major drivers and predict future emissions under climate change scenarios and policy perspectives. Results indicate that the CH4-rice emissions in China ranged between 6.21 and 6.57 Tg yr−1 over the past two decades, with a spatial distribution characterized by decreases in the south and increases in the north, associated with economic development, dietary shifts, technological advancements, and climate change. Factors such as the rate of straw added (RSA), fertilization, soil texture, temperature, and precipitation significantly influence CH4 emissions per unit rice production (CH4-urp), with RSA identified as the most significant tillage management factor, explaining 32 % of the variance. Lowering RSA to 8 % is beneficial for reducing CH4-urp. Scenario analysis indicates that under policies focusing on production or demand, CH4-rice is expected to increase by 0.3 % to 5.6 %, while adjusting RSA can reduce CH4-rice by 9.4 % to 10.0 %. Structural adjustments and regional cooperation serve as beneficial starting points for controlling and reducing CH4-rice in China, while optimizing industrial layouts contributes to regional development and CH4-rice control. Implementing policies related to maintaining field and crop yields can achieve a balance between rice supply and demand ahead of schedule. Dynamic adjustment of rice cultivation based on supply–demand balance can effectively reduce CH4-rice from excess rice production. By 2060, the reduction effect could reach 8.95 %–12.01 %. Introducing policy-driven tillage management measures as reference indicators facilitates the reduction of CH4-rice.
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- 2024
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22. Comparing Automated and Non‐automated Machine Learning for Binary Classification of Running Fatigue Using Wearable Sensors
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Leleu, Alizée, Ward, Tomás E., Magjarević, Ratko, Series Editor, Ładyżyński, Piotr, Associate Editor, Ibrahim, Fatimah, Associate Editor, Lackovic, Igor, Associate Editor, Rock, Emilio Sacristan, Associate Editor, Costin, Hariton-Nicolae, editor, and Petroiu, Gladiola Gabriela, editor
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- 2024
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23. Future of Negotiation Neuroscience
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Addimando, Federico and Addimando, Federico
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- 2024
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24. LSTM Network and Box and Jenkins Methodology for Time Series Forecasting: Solar Energy Production
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Riahi, Mohamed Hedi, Maalaoui, Hiba, Hedhli, Amel, Ncib, Lotfi, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Benadada, Youssef, editor, Mhada, Fatima-Zahra, editor, Boukachour, Jaouad, editor, Ouzayd, Fatima, editor, and El Hilali Alaoui, Ahmed, editor
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- 2024
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25. Apparent Personality Traits Detection Based on Correlation-Based Attention and Feature Weighting Methods
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Thati, Ravi Prasad, Mamidisetti, Suresh, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Chillarige, Raghavendra Rao, editor, Distefano, Salvatore, editor, and Rawat, Sandeep Singh, editor
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- 2024
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26. Sicilian Heritage Identity: Between Stereotype and AI-Based Knowledge
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Arena, Marinella, Lax, Gianluca, Ribeiro, Diogo, Series Editor, Naser, M. Z., Series Editor, Stouffs, Rudi, Series Editor, Bolpagni, Marzia, Series Editor, Giordano, Andrea, editor, Russo, Michele, editor, and Spallone, Roberta, editor
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- 2024
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27. Telecom Churn Prediction Using Python
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Sharma, Aditi, Tyagi, Mayank, Kumar, Sunil, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Mahapatra, Rajendra Prasad, editor, Peddoju, Sateesh K., editor, Roy, Sudip, editor, and Parwekar, Pritee, editor
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- 2024
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28. From Pixels to Plow: Enhancing Agricultural Yield with Satellite Data
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Bhargav, Sanath N., Rajendra, Samarth, Sankalp, C. B., Rohan, Srinivas, K. S., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Hassanien, Aboul Ella, editor, Anand, Sameer, editor, Jaiswal, Ajay, editor, and Kumar, Prabhat, editor
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- 2024
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29. Classification of Multi Plant Leaf Diseases Based on Optimization of the Convolutional Neural Network Models
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Ismail, Amr, Hamdy, Walid, Ibrahim, Ali H., Awad, Wael A., Negm, Abdelazim M., Series Editor, Chaplina, Tatiana, Series Editor, El-Dossoki, Farid, editor, Hassan, Mohamed, editor, and Shehata, Amer, editor
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- 2024
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30. Improved Prediction Using Machine Learning Algorithms
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Jaja-Wachuku, Chukwuemeka, Garbagna, Lorenzo, Saheer, Lakshmi Babu, Oghaz, Mahdi Maktab Dar, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Carette, Jacques, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Maglogiannis, Ilias, editor, Iliadis, Lazaros, editor, Macintyre, John, editor, Avlonitis, Markos, editor, and Papaleonidas, Antonios, editor
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- 2024
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31. Implementation of Ensemble Learning to Predict Learner’s Attainment—A Random Forest Classifier
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Mohurle, Savita, Gedam, Shilpa, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Das, Swagatam, editor, Saha, Snehanshu, editor, Coello, Carlos A. Coello, editor, Rathore, Hemant, editor, and Bansal, Jagdish Chand, editor
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- 2024
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32. Machine Learning Model for Water Quality Analytics
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Pandey, Jitendra, Verma, Seema, Dey, Nilanjan, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Piuri, Vincenzo, Series Editor, Mishra, Durgesh, editor, Yang, Xin She, editor, Unal, Aynur, editor, and Jat, Dharm Singh, editor
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- 2024
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33. Knowledge-Based Machine Learning Approaches to Predict Oil Production Rate in the Oil Reservoir
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AlRassas, Ayman Mutahar, Ejike, Chinedu, Deumah, Salman, Yahya, Wahib Ali, Ahmed, Anas A., Darwish, Sultan Abdulkareem, Kingsley, Asare, Renyuan, Sun, Wu, Wei, Series Editor, and Lin, Jia'en, editor
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- 2024
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34. Experimental Investigation and Pollution Contaminant Severity Analysis of Glass and Porcelain Insulators Under Controlled Conditions
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Akbar, Sheik Sidthik, Venkatachary, Sampath Kumar, Raj, Raymon Antony, Duraisamy, Sarathkumar, Andrews, Leo John Baptist, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Mahajan, Vasundhara, editor, Chowdhury, Anandita, editor, Singh, Sri Niwas, editor, and Shahidehpour, Mohammad, editor
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- 2024
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35. Feasibility study on machine learning methods for prediction of process-related parameters during WAAM process using SS-316L filler material
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Subadra, Sharath P., Mayer, Eduard, Wachtel, Philipp, and Sheikhi, Shahram
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- 2024
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36. Predicting the Stability of Rock Slopes in the Presence of Diverse Joint Networks and External Factors Using Machine Learning Algorithms
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Singh, Sudhir Kumar, Kumar, Subodh, and Chakravarty, Debashish
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- 2024
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37. A non-autonomous time-delayed SIR model for COVID-19 epidemics prediction in China during the transmission of Omicron variant
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Zhiliang Li, Lijun Pei, Guangcai Duan, and Shuaiyin Chen
- Subjects
sir ,predictions ,covid-19 ,omicron ,china ,Mathematics ,QA1-939 ,Applied mathematics. Quantitative methods ,T57-57.97 - Abstract
With the continuous evolution of the coronavirus, the Omicron variant has gradually replaced the Delta variant as the prevalent strain. Their inducing epidemics last longer, have a higher number of asymptomatic cases, and are more serious. In this article, we proposed a nonautonomous time-delayed susceptible-infected-removed (NATD-SIR) model to predict them in different regions of China. We obtained the maximum and its time of current infected persons, the final size, and the end time of COVID-19 epidemics from January 2022 in China. The method of the fifth-order moving average was used to preprocess the time series of the numbers of current infected and removed cases to obtain more accurate parameter estimations. We found that usually the transmission rate $ \beta(t) $ was a piecewise exponential decay function, but due to multiple bounces in Shanghai City, $ \beta(t) $ was approximately a piecewise quadratic function. In most regions, the removed rate $ \gamma(t) $ was approximately equal to a piecewise linear increasing function of (a*t+b)*H(t-k), but in a few areas, $ \gamma(t) $ displayed an exponential increasing trend. For cases where the removed rate cannot be obtained, we proposed a method for setting the removed rate, which has a good approximation. Using the numerical solution, we obtained the prediction results of the epidemics. By analyzing those important indicators of COVID-19, we provided valuable suggestions for epidemic prevention and control and the resumption of work and production.
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- 2024
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- View/download PDF
38. On Fostering Predictions in Data-Driven Reduced Order Model for Eulerian–Lagrangian Simulations: Decision of Sufficient Training Data
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Kai-en Yang, Shuo Li, Guangtao Duan, and Mikio Sakai
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Data-driven ROM ,Fluid-solid flows ,Sufficient training data ,Predictions ,Chemical engineering ,TP155-156 - Abstract
AbstractThe development of a data-driven surrogate model (SM) is extensively studied in Eulerian–Lagrangian simulations for its advantage of high computational speed. However, in the application of granular systems with violent fluid-solid flows, how to select sufficient training data to ensure consistency between the high-fidelity model and SM remains unknown and highly challenging. The accuracy of SM can be easily deteriorated due to insufficient training data. This necessitates a trial-and-error process and hinders its industrial applications. To address this issue, this study newly reveals a finding that data density is a key to sufficient training, and we propose a novel technique for deciding the sufficient training data of SM. Specifically, a feasibility index is proposed based on posterior error analysis. It is demonstrated that when the training data is determined under the proposed feasibility index [Formula: see text] 2, the consistency of granular dynamics between SM and the high-fidelity model can be guaranteed. Employed in a representative SM, a reduced order model (ROM), this technique enables the successful decision of sufficient training data, resulting in the remarkable predictability in violent fluid-solid flows without trial-and-error. This technique holds great potential in solving the predicament of deciding training data for data-driven models.
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- 2024
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39. Exploring machine learning strategies for predicting cardiovascular disease risk factors from multi-omic data.
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Drouard, Gabin, Mykkänen, Juha, Heiskanen, Jarkko, Pohjonen, Joona, Ruohonen, Saku, Pahkala, Katja, Lehtimäki, Terho, Wang, Xiaoling, Ollikainen, Miina, Ripatti, Samuli, Pirinen, Matti, Raitakari, Olli, and Kaprio, Jaakko
- Subjects
- *
CARDIOVASCULAR diseases risk factors , *BLOOD pressure , *LEFT ventricular dysfunction , *LEARNING strategies , *MACHINE learning , *DIASTOLIC blood pressure - Abstract
Background: Machine learning (ML) classifiers are increasingly used for predicting cardiovascular disease (CVD) and related risk factors using omics data, although these outcomes often exhibit categorical nature and class imbalances. However, little is known about which ML classifier, omics data, or upstream dimension reduction strategy has the strongest influence on prediction quality in such settings. Our study aimed to illustrate and compare different machine learning strategies to predict CVD risk factors under different scenarios. Methods: We compared the use of six ML classifiers in predicting CVD risk factors using blood-derived metabolomics, epigenetics and transcriptomics data. Upstream omic dimension reduction was performed using either unsupervised or semi-supervised autoencoders, whose downstream ML classifier performance we compared. CVD risk factors included systolic and diastolic blood pressure measurements and ultrasound-based biomarkers of left ventricular diastolic dysfunction (LVDD; E/e' ratio, E/A ratio, LAVI) collected from 1,249 Finnish participants, of which 80% were used for model fitting. We predicted individuals with low, high or average levels of CVD risk factors, the latter class being the most common. We constructed multi-omic predictions using a meta-learner that weighted single-omic predictions. Model performance comparisons were based on the F1 score. Finally, we investigated whether learned omic representations from pre-trained semi-supervised autoencoders could improve outcome prediction in an external cohort using transfer learning. Results: Depending on the ML classifier or omic used, the quality of single-omic predictions varied. Multi-omics predictions outperformed single-omics predictions in most cases, particularly in the prediction of individuals with high or low CVD risk factor levels. Semi-supervised autoencoders improved downstream predictions compared to the use of unsupervised autoencoders. In addition, median gains in Area Under the Curve by transfer learning compared to modelling from scratch ranged from 0.09 to 0.14 and 0.07 to 0.11 units for transcriptomic and metabolomic data, respectively. Conclusions: By illustrating the use of different machine learning strategies in different scenarios, our study provides a platform for researchers to evaluate how the choice of omics, ML classifiers, and dimension reduction can influence the quality of CVD risk factor predictions. [ABSTRACT FROM AUTHOR]
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- 2024
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40. Signatures and Discriminative Abilities of Multi-Omics between States of Cognitive Decline.
- Author
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Anagnostakis, Filippos, Kokkorakis, Michail, Walker, Keenan A., and Davatzikos, Christos
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COGNITION disorders ,MULTIOMICS ,MILD cognitive impairment ,HIPPURIC acid ,APOLIPOPROTEIN E ,PENTRAXINS ,DEMENTIA - Abstract
Dementia poses a substantial global health challenge, warranting an exploration of its intricate pathophysiological mechanisms and potential intervention targets. Leveraging multi-omic technology, this study utilizes data from 2251 participants to construct classification models using lipidomic, gut metabolomic, and cerebrospinal fluid (CSF) proteomic markers to distinguish between the states of cognitive decline, namely, the cognitively unimpaired state, mild cognitive impairment, and dementia. The analysis identifies three CSF proteins (apolipoprotein E, neuronal pentraxin-2, and fatty-acid-binding protein), four lipids (DEDE.18.2, DEDE.20.4, LPC.O.20.1, and LPC.P.18.1), and five serum gut metabolites (Hyodeoxycholic acid, Glycohyodeoxycholic acid, Hippuric acid, Glyceric acid, and Glycodeoxycholic acid) capable of predicting dementia prevalence from cognitively unimpaired participants, achieving Area Under the Curve (AUC) values of 0.879 (95% CI: 0.802–0.956), 0.766 (95% CI: 0.700–0.835), and 0.717 (95% CI: 0.657–0.777), respectively. Furthermore, exclusively three CSF proteins exhibit the potential to predict mild cognitive impairment prevalence from cognitively unimpaired subjects, with an AUC of 0.760 (95% CI: 0.691–0.828). In conclusion, we present novel combinations of lipids, gut metabolites, and CSF proteins that showed discriminative abilities between the states of cognitive decline and underscore the potential of these molecules in elucidating the mechanisms of cognitive decline. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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41. A Unified Framework for Neurological Disease Detection and Gait Classification Using Deep Graph Learning.
- Author
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Kumar, P. Vimal, Thiyagarajan, M., Kannan, P. Gopi, Raja, S. Edwin, and Prabaharan, G.
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DEEP learning ,RANGE of motion of joints ,WALKING speed ,DYNAMIC balance (Mechanics) ,NEUROLOGICAL disorders ,ANGLES ,JOINT stiffness - Abstract
This paper presents Dynamic Gait Signature Analysis (DGSA), an innovative approach to gait analysis that leverages deep graph learning techniques. Unlike conventional methods, DGSA leverages multifaceted parameters and advanced deep graph learning techniques, such as Graph Convolutional Networks (GCNs) and Graph Attention Networks (GATs). These techniques enable a comprehensive analysis of gait dynamics, including the use of dynamic graph representation methods like Gait Cycle Joint Angles Graph and Gait Cycle Joint Power Graph. DGSA's unique framework allows for simultaneous prediction of neurological diseases, gait classification, and early detection of cognitive impairments. By modeling gait as dynamic graph structures, DGSA captures intricate relationships between body movements and foot positions, ultimately enhancing accuracy in classification and prediction tasks. Comprehensive experiments on real-world datasets demonstrate DGSA's robustness, generalization, and superiority in accuracy. Our approach achieves notable accuracy metrics: gait velocity (1.6 m/s), dynamic stability margin (5.6 cm), gait variability (2.4%), joint range of motion (56 degrees), dynamic balance index (0.4), minimum toe clearance (2.3 cm), foot progression angle (8.6 degrees), and dynamic joint stiffness (172). This study includes a comparative analysis of gait analysis approaches based on these key performance metrics, demonstrating DGSA's significant advancement in gait analysis methodology. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Anopheles mosquitoes in Morocco: implication for public health and underlined challenges for malaria re‐establishment prevention under current and future climate conditions.
- Author
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Abdelkrim, Outammassine, Said, Zouhair, and Souad, Loqman
- Subjects
MOSQUITOES ,ANOPHELES ,MALARIA prevention ,CONSCIOUSNESS raising ,VECTOR-borne diseases ,PUBLIC health - Abstract
BACKGROUND: The potential reappearance and/or expansion of vector‐borne diseases is one of the terrifying issues awaiting humanity in the context of climate change. The presence of competent Anopheles vectors, as well as suitable environmental circumstances, may result in the re‐emergence of autochthonous Malaria, after years of absence. In Morocco, international travel and migration movements from Malaria‐endemic areas have recently increased the number of imported cases, raising awareness of Malaria's possible reintroduction. Using machine learning we developed model predictions, under current and future (2050) climate, for the prospective distribution of Anopheles claviger, Anopheles labranchiae, Anopheles multicolor, and Anopheles sergentii implicated or incriminated in Malaria transmission. RESULTS: All modelled species are expected to find suitable habitats and have the potential to become established in the northern and central parts of the country, under present‐day conditions. Distinct changes in the distributions of the four mosquitoes are to be expected under climate change. Even under the most optimistic scenario, all investigated species are likely to acquire new habitats that are now unsuitable, placing further populations in danger. We also observed a northward and altitudinal shift in their distribution towards higher altitudes. CONCLUSION: Climate change is expected to expand the potential range of malaria vectors in Morocco. Our maps and predictions offer a way to intelligently focus efforts on surveillance and control programmes. To reduce the threat of human infection, it is crucial for public health authorities, entomological surveillance teams, and control initiatives to collaborate and intensify their actions, continuously monitoring areas at risk. © 2023 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Simulations and predictions of future values in the time-homogeneous load-sharing model.
- Author
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Buono, Francesco and Navarro, Jorge
- Abstract
In this paper, some properties of the order dependent time-homogeneous load-sharing model are obtained, including an algorithmic procedure to simulate samples from this model. Then, the problem of how to get predictions of the future failure times is analysed in a sample from censored data (early failures). Punctual predictions based on the median, the mean and the convolutions of exponential distributions are proposed and prediction bands are obtained. Some illustrative examples show how to apply the theoretical results. An application in the study of lifetimes of coherent systems is proposed as well. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. A non-autonomous time-delayed SIR model for COVID-19 epidemics prediction in China during the transmission of Omicron variant.
- Author
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Li, Zhiliang, Pei, Lijun, Duan, Guangcai, and Chen, Shuaiyin
- Subjects
- *
COVID-19 pandemic , *SARS-CoV-2 Omicron variant , *ARTIFICIAL intelligence , *MACHINE learning - Abstract
With the continuous evolution of the coronavirus, the Omicron variant has gradually replaced the Delta variant as the prevalent strain. Their inducing epidemics last longer, have a higher number of asymptomatic cases, and are more serious. In this article, we proposed a nonautonomous time-delayed susceptible-infected-removed (NATD-SIR) model to predict them in different regions of China. We obtained the maximum and its time of current infected persons, the final size, and the end time of COVID-19 epidemics from January 2022 in China. The method of the fifth-order moving average was used to preprocess the time series of the numbers of current infected and removed cases to obtain more accurate parameter estimations. We found that usually the transmission rate β (t) was a piecewise exponential decay function, but due to multiple bounces in Shanghai City, β (t) was approximately a piecewise quadratic function. In most regions, the removed rate γ (t) was approximately equal to a piecewise linear increasing function of (a*t+b)*H(t-k), but in a few areas, γ (t) displayed an exponential increasing trend. For cases where the removed rate cannot be obtained, we proposed a method for setting the removed rate, which has a good approximation. Using the numerical solution, we obtained the prediction results of the epidemics. By analyzing those important indicators of COVID-19, we provided valuable suggestions for epidemic prevention and control and the resumption of work and production. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. Contraste de análisis de frecuencias entre las distribuciones beta-kappa y beta-Pareto con tres de aplicación generalizada.
- Author
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Francisco Campos-Aranda, Daniel
- Subjects
DISTRIBUTION (Probability theory) ,MAXIMUM likelihood statistics ,STREAMFLOW ,PROBABILITY theory ,FORECASTING - Abstract
Copyright of Tecnología y Ciencias del Agua is the property of Instituto Mexicano de Tecnologia del Agua (IMTA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
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- View/download PDF
46. Prospect of 4 th COVID Wave in India: An Insightful Study.
- Author
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Equbal, Azhar
- Subjects
PREDICTION models ,OXYGEN ,MEDICAL care ,COVID-19 vaccines ,DISEASE prevalence ,VACCINATION coverage ,GENETIC mutation ,COVID-19 pandemic ,COVID-19 ,EMERGENCY management - Abstract
Introduction: The present research highlights the promising factors that suggest the possible occurrence of the fourth COVID wave in India. India is among the major victim of this pandemic and has already witnessed the three dangerous COVID waves, and the lives of Indian people are put to a major setback. When it appears as the destruction caused by the third wave seems to getting over and people are trying to return to their normal lives, meanwhile with the mutation of the virus, the new COVID variants (COVID XBB 1.16 or Arcturus, XBB.1.5, and Delta Omicron) are again shaking our universe. Methods: Research studies and developed predictive models are suggesting the possible occurrence of the fourth COVID wave in the coming months. Considering the predictions and model developed, a critical insight is provided in the present study, which predicts the prospect of the fourth COVID wave in India. Results: Research proposed that the new COVID variants (COVID XBB 1.16, XBB.1.5, and Delta Omicron) are again leading to an increase in the number of active infected cases. Several factors, as mentioned in the research, are responsible for this spread of infection. Conclusions: Important factors are highlighted, which portray the probability of the fourth coronavirus wave in India. Important factors are presented in individuals, and an attempt is made to relate them with the occurrence or nonoccurrence of the fourth wave. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Attentional Priority Is Determined by Predicted Feature Distributions
- Author
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Witkowski, Phillip P and Geng, Joy J
- Subjects
Cognitive and Computational Psychology ,Psychology ,Eye Disease and Disorders of Vision ,Neurosciences ,Humans ,Cues ,Reaction Time ,Uncertainty ,Probability ,attention ,predictions ,variability ,Bayesian learning ,feature distribution ,Cognitive Sciences ,Experimental Psychology ,Biological psychology ,Cognitive and computational psychology - Abstract
Visual attention is often characterized as being guided by precise memories for target objects. However, real-world search targets have dynamic features that vary over time, meaning that observers must predict how the target could look based on how features are expected to change. Despite its importance, little is known about how target feature predictions influence feature-based attention, or how these predictions are represented in the target template. In Experiment 1 (N = 60 university students), we show observers readily track the statistics of target features over time and adapt attentional priority to predictions about the distribution of target features. In Experiments 2a and 2b (N = 480 university students), we show that these predictions are encoded into the target template as a distribution of likelihoods over possible target features, which are independent of memory precision for the cued item. These results provide a novel demonstration of how observers represent predicted feature distributions when target features are uncertain and show that these predictions are used to set attentional priority during visual search. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
- Published
- 2022
48. The error of John Horgan: the author of the prediction of 3 K temperature of the Universe was McKellar and not McCullough
- Author
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Marcos Cesar Danhoni Neves, Daniel Gardelli, Ricardo Francisco Pereira, Josie Agatha Parrilha da Silva, Wilson Guerra, and Ana Claudia Danhoni Neves
- Subjects
astronomy teaching ,horgan ,mckellar ,3k temperature ,predictions ,Special aspects of education ,LC8-6691 ,Theory and practice of education ,LB5-3640 - Abstract
This short communication was written to the interest of the Astronomy teaching or the dissemination of the Astronomy Science to correct an information present in the popular book wrote by John Horgan (originally in 1996), The end of science: facing the limits of knowledge in the twilight of the science age, respect to the prevision of the CBR temperature prior to Arno Penzias and Robert Wilson. Horgan quoted Andrew McCullough. The correct name is Andrew Mckellar. Another error is the year of the publication of the McKellar’s paper: 1940 (in the Astronomical Society of the Pacific journal) and not 1941 as he quoted in his book. It is also discussed the good predictions of the CBR temperature made prior to Penzias & Wilson using a not Big Bang’s model of the Universe.
- Published
- 2024
- Full Text
- View/download PDF
49. MEFFNet: Forecasting Myoelectric Indices of Muscle Fatigue in Healthy and Post-Stroke During Voluntary and FES-Induced Dynamic Contractions
- Author
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Smriti Bala, Venugopalan Y. Vishnu, and Deepak Joshi
- Subjects
Time series forecasting ,forecasting myoelectric indices of muscle fatigue ,muscle fatigue ,predictions ,forecasting models ,muscle fatigue in dynamic contractions ,Medical technology ,R855-855.5 ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Myoelectric indices forecasting is important for muscle fatigue monitoring in wearable technologies, adaptive control of assistive devices like exoskeletons and prostheses, functional electrical stimulation (FES)-based Neuroprostheses, and more. Non-stationary temporal development of these indices in dynamic contractions makes forecasting difficult. This study aims at incorporating transfer learning into a deep learning model, Myoelectric Fatigue Forecasting Network (MEFFNet), to forecast myoelectric indices of fatigue (both time and frequency domain) obtained during voluntary and FES-induced dynamic contractions in healthy and post-stroke subjects respectively. Different state-of-the-art deep learning models along with the novel MEFFNet architecture were tested on myoelectric indices of fatigue obtained during ${a}\text {)}$ voluntary elbow flexion and extension with four different weights (1 kg, 2 kg, 3 kg, and 4 kg) in sixteen healthy subjects, and ${b}\text {)}$ FES-induced elbow flexion in sixteen healthy and seventeen post-stroke subjects under three different stimulation patterns (customized rectangular, trapezoidal, and muscle synergy-based). A version of MEFFNet, named as pretrained MEFFNet, was trained on a dataset of sixty thousand synthetic time series to transfer its learning on real time series of myoelectric indices of fatigue. The pretrained MEFFNet could forecast up to 22.62 seconds, 60 timesteps, in future with a mean absolute percentage error of 15.99 ± 6.48% in voluntary and 11.93 ± 4.77% in FES-induced contractions, outperforming the MEFFNet and other models under consideration. The results suggest combining the proposed model with wearable technology, prosthetics, robotics, stimulation devices, etc. to improve performance. Transfer learning in time series forecasting has potential to improve wearable sensor predictions.
- Published
- 2024
- Full Text
- View/download PDF
50. Smart insect monitoring based on YOLOV5 case study: Mediterranean fruit fly Ceratitis capitata and Peach fruit fly Bactrocera zonata
- Author
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S.O. Slim, I.A. Abdelnaby, M.S. Moustafa, M.B. Zahran, H.F. Dahi, and M.S. Yones
- Subjects
Smart insect monitoring ,Fruit fly ,YOLOV5 ,Deep learning ,Mobile application ,Predictions ,Geodesy ,QB275-343 - Abstract
The agricultural sector in Egypt is adversely affected by factors such as inadequate soil fertility and environmental hazards such as pestilence and diseases. The implementation of early pest prediction techniques has the potential to enhance agricultural yield. Bactrocera zonata and Ceratitis capitata, known as peach fruit fly and Mediterranean fruit fly, respectively, are the predominant pests that cause significant damage to fruits on a global scale. The present study proposes a deep learning-based approach for the detection and quantification of pests. The proposed approach entails the retrieval of data pertaining to the adhesive trap condition, followed by its examination and presentation through a mobile application. The YOLOV5 model has been implemented for the purpose of pest classification, localization, and quantification. In order to address the issue of a restricted dataset, a hybrid technique of transfer learning and data augmentation (copy and paste) was employed. The proposed approach offers an intelligent real time pest detection, thereby facilitating the prediction of treatment options. An application for smartphones has been developed to aid farmers and agricultural professionals in the management and treatment of pests. The proposed approach has the potential to aid farmers in identifying the existence of pests, thereby diminishing the duration and resources needed for farm inspection. As per the results of the conducted experiments, the proposed approach demonstrates a noteworthy increase in performance. The weighted average accuracy reaches 84%, while precision (P), mean average precision (mAP), and F1-score show enhancements of up to 15%, 18%, and 7% respectively.
- Published
- 2023
- Full Text
- View/download PDF
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