7,913 results
Search Results
2. Tachyum Unveils Air Defense Superiority Using Prodigy AI White Paper
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Air defenses ,Algorithms ,Antiairborne warfare ,Algorithm ,Business ,Business, international - Abstract
LAS VEGAS -- Tachyum[TM] today released details of Prodigy([R]), the world's first universal processor, for advanced military and defense avionics applications in a new white paper 'Air Dominance Powered by [...]
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- 2023
3. Investigators from Midwest Orthopaedics at Rush Target Machine Learning (Paper 19: Evidence-based Machine Learning Algorithm To Predict Failure Following Cartilage Preservation Procedures In the Knee)
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Papermaking machinery ,Machine learning ,Data mining ,Algorithms ,Data warehousing/data mining ,Algorithm ,Health ,Health care industry - Abstract
2023 MAY 28 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Devices & Surgical Technology Week -- Fresh data on Machine Learning are presented in a new report. [...]
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- 2023
4. New White Paper Centers AI as a Critical Component of 5G Telecoms Network Success
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Algorithms ,Algorithm ,Telecommunications industry - Abstract
(GlobeNewswire) - Citing artificial intelligence (AI) and 5G as cornerstone technologies of this decade, a new whitepaper released today by InterDigital, Inc. (NASDAQ: IDCC) and written by ABI Research details [...]
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- 2022
5. New Findings from Northeast Forestry University Update Understanding of Information Science (Airank: an Algorithm On Evaluating the Academic Influence of Papers Based On Heterogeneous Academic Network)
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Information science ,Algorithms ,Algorithm ,Computers - Abstract
2023 MAR 14 (VerticalNews) -- By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Data detailed on Information Technology - Information Science have been presented. According to news [...]
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- 2023
6. Reports from Zhejiang Normal University Highlight Recent Findings in Engineering Software (Paper Intrusion Detection Approach for Cloud and Iot Environments Using Deep Learning and Capuchin Search Algorithm)
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Engineering -- Computer programs ,Security software ,Algorithms ,Network security software ,Algorithm ,Engineering software ,Computers ,News, opinion and commentary - Abstract
2023 MAR 8 (VerticalNews) -- By a News Reporter-Staff News Editor at Computer Weekly News -- Current study results on Engineering - Engineering Software have been published. According to news [...]
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- 2023
7. Management of adverse events associated with idelalisib treatment in chronic lymphocytic leukemia and follicular lymphoma: A multidisciplinary position paper
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Pier Luigi Zinzani, Stefano Fagiuoli, Paolo Ghia, Antonio Cuneo, Giovanni Barosi, Alfredo Marzano, Romano Danesi, Pierluigi Viale, Marco Montillo, Venerino Poletti, Cuneo, Antonio, Barosi, Giovanni, Danesi, Romano, Fagiuoli, Stefano, Ghia, Paolo, Marzano, Alfredo, Montillo, Marco, Poletti, Venerino, Viale, Pierluigi, Zinzani, Pier Luigi, Cuneo, A, Barosi, G, Danesi, R, Fagiuoli, S, Ghia, P, Marzano, A, Montillo, M, Poletti, V, Viale, P, and Zinzani, P
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Oncology ,Cancer Research ,Adverse events ,chronic lymphocytic leukemia ,follicular lymphoma ,idelalisib ,Chronic lymphocytic leukemia ,adverse event ,Follicular lymphoma ,Review ,Antineoplastic Agent ,0302 clinical medicine ,hemic and lymphatic diseases ,Antineoplastic Combined Chemotherapy Protocols ,Cytochrome P-450 CYP3A ,Drug Interactions ,Disease management (health) ,Lymphoma, Follicular ,Disease Management ,Hematology ,General Medicine ,Colitis ,Algorithm ,Aldehyde Oxidase ,Drug Interaction ,030220 oncology & carcinogenesis ,Idelalisib ,Algorithms ,Human ,Diarrhea ,medicine.medical_specialty ,Reviews ,Antineoplastic Agents ,Quinazolinone ,NO ,03 medical and health sciences ,Internal medicine ,medicine ,Animals ,Humans ,Clinical significance ,Adverse effect ,Purine ,Quinazolinones ,Pneumonitis ,adverse events ,Antineoplastic Combined Chemotherapy Protocol ,Animal ,business.industry ,medicine.disease ,Leukemia, Lymphocytic, Chronic, B-Cell ,Purines ,Position paper ,business ,Coliti ,030215 immunology - Abstract
The introduction of new therapeutic agents in chronic lymphocytic leukemia (CLL) and follicular lymphoma (FL), including the new kinase inhibitor idelalisib, has changed the therapeutic landscape of these diseases. However, the use of idelalisib is associated with a peculiar profile of side effects, which require an optimization of the current approach to prophylaxis and supportive treatment. Moving from the recognition that the abovementioned issue represents an unmet need in CLL and FL, a multidisciplinary panel of experts was convened to produce a consensus document aiming to provide practical recommendations for the management of the side effects during idelalisib therapy for CLL and FL. The present publication represents a consensus document from a series of meetings held during 2017. The Panel generated clinical key questions using the criterion of clinical relevance through a Delphi process and explored 4 domains, ie, diarrhea/colitis, transaminitis, pneumonitis, and infectious complications. Using the consensus method, the Panel was able to shape recommendations which may assist hematologist to minimize adverse events and guarantee adherence to treatment in patients with CLL and FL candidate to receive idelalisib.
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- 2019
8. Aspira Women's Health Announces Publication of Paper Validating OvaWatch Algorithm in the Detection of Ovarian Cancer
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Women -- Health aspects ,Cancer -- Diagnosis ,Ovarian cancer ,Algorithms ,Algorithm ,General interest ,News, opinion and commentary - Abstract
AUSTIN: Aspira Women's Health Inc. has issued the following news release: Aspira Women's Health Inc. ('Aspira'), a bio-analytical based women's health company focused on gynecologic disease, today announced the online [...]
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- 2022
9. Aspira Women's Health Announces Publication of Paper Validating OvaWatch(TM) Algorithm in the Detection of Ovarian Cancer
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Women -- Health aspects ,Cancer -- Diagnosis ,Ovarian cancer ,Algorithms ,Algorithm ,Banking, finance and accounting industries ,Business - Abstract
AUSTIN, Texas, Jun 16, 2022 (GLOBE NEWSWIRE via COMTEX) -- EQNX::TICKER_START (NASDAQ:AWH), EQNX::TICKER_END Aspira Women's Health Inc. ('Aspira'), a bio-analytical based women's health company focused on gynecologic disease, today announced [...]
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- 2022
10. Image digitization of discontinuous and degraded electrocardiogram paper records using an entropy-based bit plane slicing algorithm
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R. G. Karandikar and Rupali Patil
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Paper ,Computer science ,Information Storage and Retrieval ,Graph paper ,02 engineering and technology ,030204 cardiovascular system & hematology ,Sensitivity and Specificity ,03 medical and health sciences ,Electrocardiography ,0302 clinical medicine ,Software ,0202 electrical engineering, electronic engineering, information engineering ,Entropy (information theory) ,Humans ,ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS ,Digitization ,Ground truth ,business.industry ,Principle of maximum entropy ,Signal Processing, Computer-Assisted ,computer.file_format ,020201 artificial intelligence & image processing ,Image file formats ,Cardiology and Cardiovascular Medicine ,business ,Algorithm ,computer ,Algorithms ,Analog-Digital Conversion ,Bit plane - Abstract
Background Electrocardiograms (ECGs) are routinely recorded and stored in a variety of paper or scanned image format. Current ECG recording machines record ECG on graph paper, also it provides digitized ECG signal along with automated cardiovascular diagnosis (CVD). However, such recording machines cannot analyse preserved paper ECG records as it requires input in terms of digitized signal. Therefore, it is important to extract ECG signal from these preserved paper ECG records using digitization method. There are different paper degradations that adversely affect digitization process. The purpose of this work is to perform an image enhancement and digitization of the degraded ECG images to extract continuous ECG signal. Methods In this paper, we propose entropy-based bit plane slicing (EBPS) algorithm in which pre-processing is done using dominant color detection and local bit plane slicing. Maximum entropy based adaptive bit plane selection is applied to the pre-processed image. Discontinuous ECG correction (DECGC) is then done to produce continuous ECG signal. Results The algorithm is tested on 836 different degraded paper ECG records obtained from various diagnostic centers. After analysis with 101 known ground truth ECG signals the accuracy, sensitivity, specificity and overall F-measure of ECG is 99.42%, 99.69%, 99.81% and 99.26% respectively. The RMS error and correlation between the extracted digitized signal and ground truth for 101 cases is 0.040 and 99.89% respectively. Conclusions The EBPS method is able to remove all types of degradation in paper ECG records to generate a uniform digitized signal. Instead of manual measurement and prediction from archived paper ECG records, automated prediction (using already existing cardiovascular diagnosis software) is possible with the help of extracted digitized signal obtained using proposed digitization method, which will also help retrospective cardiovascular analysis.
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- 2017
11. Awarded papers focus on solving basic algorithmic problems, with applications in bioinformatics
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Computational biology ,RNA ,College teachers ,Algorithms ,Algorithm ,Business ,Health ,Health care industry - Abstract
2022 NOV 13 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Letter on the CDC & FDA -- The prize for the best research article of the Workshop [...]
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- 2022
12. SciPy 1.0: fundamental algorithms for scientific computing in Python: 24 February 2020 : An amendment to this paper has been published and can be accessed via a link at the top of the paper
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Virtanen, P., Gommers, R., Oliphant, T.E., Haberland, M., Reddy, T., Cournapeau, D., Burovski, E., Peterson, P., Weckesser, W., Bright, J., Walt, S.J., Brett, M., Wilson, J., Millman, K.J., Mayorov, N., Nelson, A.R.J., Jones, E., Kern, R., Larson, E., Carey, C.J., Polat, I., Feng, Y., Moore, E.W., VanderPlas, J., Laxalde, D., Perktold, J., Cimrman, R., Henriksen, I., Quintero, E.A., Harris, C.R., Archibald, A.M., Ribeiro, A.H., Pedregosa, F., Mulbregt, P., Vijaykumar, A., Bardelli, A.P., Rothberg, A., Hilboll, A., Kloeckner, A., Scopatz, A., Lee, A., Rokem, A., Woods, C.N., Fulton, C., Masson, C., Häggström, C., Fitzgerald, C., Nicholson, D.A., Hagen, D.R., Pasechnik, D.V., Olivetti, E., Martin, E., Wieser, E., Lenders, F., Silva, Fabrice, Wilhelm, F., Young, G., Price, G.A., Ingold, G.-L., Allen, G.E., Lee, G.R., Audren, H., Probst, Irvin, Dietrich, J.P., Silterra, J., Webber, J.T., Slavič, J., Nothman, J., Buchner, J., Kulick, J., Schönberger, J.L., Miranda Cardoso, J.V., Reimer, J., Harrington, J., Rodríguez, J.L.C., Nunez-Iglesias, J., Kuczynski, J., Tritz, K., Thoma, M., Newville, M., Kümmerer, M., Bolingbroke, M., Tartre, M., Pak, M., Smith, N.J., Nowaczyk, N., Shebanov, N., Pavlyk, O., Brodtkorb, P.A., Lee, P., McGibbon, R.T., Feldbauer, R., Lewis, S., Tygier, S., Sievert, S., Vigna, S., Peterson, S., More, S., Pudlik, T., Oshima, T., Pingel, T.J., Robitaille, T.P., Spura, T., Jones, T.R., Cera, T., Leslie, T., Zito, T., Krauss, T., Upadhyay, U., Halchenko, Y.O., Vázquez-Baeza, Y., SciPy 1.0, Contributors, Low Temperature Laboratory, TKK Helsinki University of Technology (TKK), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS), SNECMA Villaroche [Moissy-Cramayel], Safran Group, New Technologies Research Centre [Plzeň] (NTC), University of West Bohemia [Plzeň ], Institute of Environmental Physics [Bremen] (IUP), University of Bremen, Istituto Nazionale di Ricerca Metrologica (INRiM), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Sons, Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility (ESRF), Lab-STICC_ENSTAB_CID_PRASYS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, University of Chicago, Consortium of Advanced Radiation Sciences, Advanced Photon Source, GSECARS, University of Chicago, Laboratoire de physique des gaz et des plasmas (LPGP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), The Open University [Milton Keynes] (OU), Nobeyama Radio Observatory, Gommers, Ralf [0000-0002-0300-3333], Haberland, Matt [0000-0003-4806-3601], Reddy, Tyler [0000-0003-2364-6157], van der Walt, Stéfan J. [0000-0001-9276-1891], Millman, K. Jarrod [0000-0002-5263-5070], Nelson, Andrew R. J. [0000-0002-4548-3558], Laxalde, Denis [0000-0002-5540-4825], Ribeiro, Antônio H. [0000-0003-3632-8529], van Mulbregt, Paul [0000-0002-2382-8308], Apollo - University of Cambridge Repository, van der Walt, Stéfan J [0000-0001-9276-1891], Millman, K Jarrod [0000-0002-5263-5070], Nelson, Andrew RJ [0000-0002-4548-3558], Ribeiro, Antônio H [0000-0003-3632-8529], Quansight LLC, California Polytechnic State University [San Luis Obispo] (CAL POLY), Los Alamos National Laboratory (LANL), AUTRES, National Research University Higher School of Economics [St. Petersburg], Tallinn Technical University, University of California [Berkeley] (UC Berkeley), University of California (UC), University of Birmingham [Birmingham], Skolkovo Innovation Center, Australian Nuclear Science and Technology Organisation [Australie] (ANSTO), Enthought Inc, University of Washington [Seattle], University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), Bruker BioSpin Corporation, Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne (ENISE)-Centre National de la Recherche Scientifique (CNRS), University of Texas at Austin [Austin], Astronomical Institute Anton Pannekoek (AI PANNEKOEK), University of Amsterdam [Amsterdam] (UvA), Universidade Federal de Minas Gerais [Belo Horizonte] (UFMG), Google LLC, Laboratoire Chrono-environnement (UMR 6249) (LCE), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique (IMT Atlantique), and Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS)
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FOS: Computer and information sciences ,Computer science ,01 natural sciences ,Biochemistry ,Computer Science - Software Engineering ,631/45/56 ,Data Structures and Algorithms (cs.DS) ,010303 astronomy & astrophysics ,computer.programming_language ,0303 health sciences ,Signal processing ,Signal Processing, Computer-Assisted ,Computational Physics (physics.comp-ph) ,ddc ,Linear algebra ,Perspective ,Minification ,Physics - Computational Physics ,Algorithm ,Algorithms ,Biotechnology ,De facto standard ,FOS: Physical sciences ,Image processing ,History, 21st Century ,Models, Biological ,706/703/559 ,Python (Computer program language) ,Computational science ,03 medical and health sciences ,Computer Science - Data Structures and Algorithms ,0103 physical sciences ,Computer Simulation ,[INFO]Computer Science [cs] ,ddc:530 ,Cluster analysis ,Molecular Biology ,Scientific computing ,030304 developmental biology ,Sparse matrix ,software ,Computational Biology ,Cell Biology ,Python (programming language) ,History, 20th Century ,[INFO.INFO-NA]Computer Science [cs]/Numerical Analysis [cs.NA] ,Software Engineering (cs.SE) ,Nonlinear Dynamics ,Linear Models ,Computer Science - Mathematical Software ,Programming Languages ,631/114 ,computer ,Mathematical Software (cs.MS) ,Python - Abstract
SciPy is an open source scientific computing library for the Python programming language. SciPy 1.0 was released in late 2017, about 16 years after the original version 0.1 release. SciPy has become a de facto standard for leveraging scientific algorithms in the Python programming language, with more than 600 unique code contributors, thousands of dependent packages, over 100,000 dependent repositories, and millions of downloads per year. This includes usage of SciPy in almost half of all machine learning projects on GitHub, and usage by high profile projects including LIGO gravitational wave analysis and creation of the first-ever image of a black hole (M87). The library includes functionality spanning clustering, Fourier transforms, integration, interpolation, file I/O, linear algebra, image processing, orthogonal distance regression, minimization algorithms, signal processing, sparse matrix handling, computational geometry, and statistics. In this work, we provide an overview of the capabilities and development practices of the SciPy library and highlight some recent technical developments., Comment: Article source data is available here: https://github.com/scipy/scipy-articles
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- 2020
13. Boris Johnson's 'mutant' planning algorithm could scar England for ever; A Dominic Cummings-influenced white paper throws land open to uncontrolled building -- but could spark a Tory revolt
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Algorithms ,Algorithm ,News, opinion and commentary - Abstract
Byline: Simon Jenkins When Dominic Cummings stormed out of Downing Street earlier this month he left behind a time bomb more explosive than any pandemic recession or no-deal Brexit. Those [...]
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- 2020
14. Data from Norwegian University of Science and Technology (NTNU) Provide New Insights into Information Technology (Classification of Forensic Hyperspectral Paper Data Using Hybrid Spectral Similarity Algorithms)
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Algorithms ,Algorithm ,Computers - Abstract
2022 FEB 1 (VerticalNews) -- By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Investigators publish new report on Information Technology. According to news reporting originating in Gjovik, [...]
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- 2022
15. New Paper By UK Competition Authority On Algorithms
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United Kingdom. Competition and Markets Authority ,Foreclosure ,Algorithms ,Algorithm ,Business, international - Abstract
The UK Competition and Markets Authority ('CMA') published a paper in January setting out how algorithms are believed to harm consumers. The CMA distinguishes between direct harm to consumers ('personalisation' [...]
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- 2021
16. 'Another fine mess': how the papers covered the exams fiasco U-turn; Now that the algorithm has finally been dropped, the blame game begins, as well as the search for university places Gavin Williamson seeks to blame Ofqual for exams debacle
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Algorithms ,Journalistic ethics ,Algorithm ,News, opinion and commentary - Abstract
Byline: Graham Russell Climbdowns, U-turns and calls for Gavin Williamson to resign resounded across Tuesday's front pages following the education secretary's apology for the exams algorithm fiasco that has marred [...]
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- 2020
17. Findings in Cardiovascular Research Reported from R. Patil and Co-Researchers (Image digitization of discontinuous and degraded electrocardiogram paper records using an entropy-based bit plane slicing algorithm)
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Algorithms ,Cardiovascular research ,Electrocardiography ,Physical fitness ,Digitization ,Algorithm ,Health - Abstract
2018 AUG 25 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Investigators discuss new findings in Cardiovascular Research. According to news reporting out [...]
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- 2018
18. Computer-Based versus Paper-Based Insulin Infusion Algorithms in Diabetic Ketoacidosis
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Moustafa Younis, John Pham, Majdi Hamarshi, and Hussein Asad
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Adult ,Male ,Time Factors ,Diabetic ketoacidosis ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Hypoglycemia ,law.invention ,Diabetic Ketoacidosis ,Endocrinology ,law ,Diabetes mellitus ,medicine ,Humans ,Hypoglycemic Agents ,Insulin ,Infusions, Intravenous ,Glycemic ,Retrospective Studies ,Univariate analysis ,business.industry ,Middle Aged ,medicine.disease ,Intensive care unit ,Drug Therapy, Computer-Assisted ,Intensive Care Units ,Female ,business ,Algorithm ,Body mass index ,Algorithms - Abstract
Background:: Paper-based and computer-based insulin infusion algorithms facilitate appropriate glycemic therapy. The data comparing these algorithms in the management of diabetic ketoacidosis in the intensive care unit (ICU) setting are limited. We aimed to determine the differences in time to diabetic ketoacidosis resolution and incidence of hypoglycemia between computer and paper-based insulin infusion. Methods:: Single-institution retrospective review of patients admitted to the ICU with diabetic ketoacidosis between 4/1/2015 and 7/20/2018. Our institution introduced computer-based insulin infusion (Glucommander) to the intensive care unit on 3/28/2016. Patients were grouped into either paper-based group (preintervention) or a computer-based group (postintervention). Summary and univariate analyses were performed. Results:: A total of 620 patients (paper-based=247; computer-based=373) with a median (IQR) age of 40 (26-56) years were included; 46% were male. Patients in the computer-based group were significantly older (p=0.003); otherwise, there were no significant differences in gender, race, body mass index and HbA1c. The mean (±SD) time to diabetic ketoacidosis resolution in the computer-based group was significantly lower than the paper-based group (p=0.02). The number of patients in the paper-based group who developed severe hypoglycemia ( Conclusions:: Our analyses demonstrate statistically significant decreases in time to DKA resolution and hypoglycemic events in DKA patients who were managed using a computer-based insulin infusion algorithm providing a more effective and safer option when compared to paper-based insulin infusion.
- Published
- 2019
19. NEURIPS PAPERS AIM TO IMPROVE UNDERSTANDING AND ROBUSTNESS OF MACHINE LEARNING ALGORITHMS
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Data mining ,Algorithms ,Machine learning ,Pellet fusion ,Data warehousing/data mining ,Algorithm ,News, opinion and commentary - Abstract
LIVERMORE, CA -- The following information was released by Lawrence Livermore National Laboratory (LLNL): The 34th Conference on Neural Information Processing Systems (NeurIPS) is featuring two papers advancing the reliability [...]
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- 2020
20. New Laurel Bridge White Paper Highlights Medical Imaging AI Workflow Challenges
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Algorithms ,Medical imaging equipment ,Workflow software ,Software industry ,Software ,Software quality ,Algorithm ,Workflow software ,General interest ,News, opinion and commentary - Abstract
NEWARK: Laurel Bridge Software has issued the following news release: Laurel Bridge Software, a provider of software solutions that enable healthcare organizations to orchestrate their medical imaging workflows, recently released [...]
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- 2020
21. New Laurel Bridge White Paper Highlights Medical Imaging AI Workflow Challenges
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Computer software industry ,Software ,Medical imaging equipment ,Algorithms ,Software quality ,Algorithm ,Workflow software ,Business ,News, opinion and commentary - Abstract
NEWARK, Del., Nov. 10, 2020 /PRNewswire/ -- Laurel Bridge Software, a provider of software solutions that enable healthcare organizations to orchestrate their medical imaging workflows, recently released a new white [...]
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- 2020
22. New paper calls on Instagram to do more to protect women and vulnerable users online
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Prostitution ,Algorithms ,Censorship ,Algorithm ,Censorship issue ,Business, international ,Instagram (Online service) - Abstract
London: City, University of London, UK Government has issued the following news release: The paper, How Instagram's algorithm is censoring women and vulnerable users but helping online abusers, which was [...]
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- 2020
23. Comment on the paper “Thermoluminescence glow-curve deconvolution functions for mixed order of kinetics and continuous trap distribution by G. Kitis, J.M. Gomez-Ros, Nuclear Instruments and Methods in Physics Research A 440, 2000, pp 224–231”
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Kazakis, Nikolaos A.
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- *
THERMOLUMINESCENCE , *ALGORITHMS , *MATHEMATICAL analysis , *DECONVOLUTION (Mathematics) , *PHYSICS - Abstract
The present comment concerns the correct presentation of an algorithm proposed in the above paper for the glow-curve deconvolution in the case of continuous distribution of trapping states. Since most researchers would use directly the proposed algorithm as published, they should be notified of its correct formulation during the fitting of TL glow curves of materials with continuous trap distribution using this Equation. [ABSTRACT FROM AUTHOR]
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- 2018
- Full Text
- View/download PDF
24. Patterns Paper Shows Benefits of Modeling Complicated Small Datasets Using Unconventional, Quantum Computing-inspired Algorithms
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Cell Press ,Cancer -- Genetic aspects ,Machine learning ,Periodical publishing ,Algorithms ,Algorithm ,Health - Abstract
2021 MAY 14 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- Genuity Science, a U.S.-headquartered genomics data, analytics and insights organization, announced that the [...]
- Published
- 2021
25. University of Sannio Researchers Update Understanding of Artificial Intelligence (AIRSENSE-TO-ACT: A Concept Paper for COVID-19 Countermeasures Based on Artificial Intelligence Algorithms and Multi-Source Data Processing)
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Artificial intelligence ,Algorithms ,Algorithm ,Artificial intelligence ,Business ,Health ,Health care industry - Abstract
2021 FEB 7 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Letter on the CDC & FDA -- Researchers detail new data in artificial intelligence. According to news [...]
- Published
- 2021
26. A Systematic Review of Rapidly Exploring Random Tree RRT Algorithm for Single and Multiple Robots.
- Author
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Muhsen, Dena Kadhim, Raheem, Firas Abdulrazzaq, and Sadiq, Ahmed T.
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ROBOTIC path planning ,AUTONOMOUS robots ,ALGORITHMS ,ROBOTS ,PROBLEM solving - Abstract
Recent advances in path-planning algorithms have transformed robotics. The Rapidly exploring Random Tree (RRT) algorithm underpins autonomous robot navigation. This paper systematically examines the uses and development of RRT algorithms in single and multiple robots to demonstrate their importance in modern robotics studies. To do this, we have reviewed 70 works on RRT algorithms in single and multiple robot path planning from 2015 to 2023. RRT algorithm evolution, including crucial turning points and innovative techniques, have been examined. A detailed comparison of the RRT Algorithm versions reveals their merits, limitations, and development potential. The review's identification of developing regions and future research initiatives will enable roboticists to use RRT algorithms. This thorough review is essential to the robotics community, inspiring new ideas, helping problem-solving, and expediting single- and multi-robot system development. This highlights the necessity of RRT algorithms for autonomous and collaborative robotics advancement. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
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27. Chi Onwurah ask the Secretary of State for Digital, Culture, Media and Sport, with reference to the Online Harms White Paper published on 8 April, whether the proposed duty of care applies to those (a) using algorithms in their business and service delivery processes and (b) providing business and consumer services commercially
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Algorithms ,Business services ,Algorithm ,Business, international - Abstract
London: United Kingdom House of Commons has issued the following written answer: Answered by: Margot James Answered on: 23 April 2019 Following the publication of the Online Harms White Paper [...]
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- 2019
28. iQIYI Lowers Rebuffering Ratio by 13% with AI Technology, Research Paper on the Subject Accepted by IEEE ICME 2019
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Algorithms ,Algorithm ,Business ,News, opinion and commentary - Abstract
BEIJING, March 25, 2019 /PRNewswire/ -- iQIYI, Inc. (NASDAQ: IQ) ('iQIYI' or the 'Company'), an innovative market-leading online entertainment company in China, today announced that its paper on the development [...]
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- 2019
29. Nebulas publishes Nebulas Rank Yellow Paper to bring value ranking to the blockchain world
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Algorithms ,Algorithm ,Business ,News, opinion and commentary - Abstract
SAN FRANCISCO, July 2, 2018 /PRNewswire/ -- On June 30, Beijing time, Nebulas Research published the 'Nebulas Rank Yellow Paper.' The paper focuses on a value ranking algorithm to measure [...]
- Published
- 2018
30. Design Characteristics of Studies Reporting the Performance of Artificial Intelligence Algorithms for Diagnostic Analysis of Medical Images: Results from Recently Published Papers
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Kyung Won Kim, Hye Young Jang, Seong Ho Park, Dongwook Kim, and Youngbin Shin
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Databases, Factual ,MEDLINE ,Design characteristics ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Artificial Intelligence ,Diagnostic analysis ,Machine learning ,Image Processing, Computer-Assisted ,Humans ,Medicine ,Appropriateness ,Radiology, Nuclear Medicine and imaging ,Internal validation ,Accuracy ,business.industry ,Significant difference ,Deep learning ,Clinical validation ,Study design ,Quality ,Clinical trial ,Meta-analysis ,Case-Control Studies ,030220 oncology & carcinogenesis ,Systematic review ,Original Article ,Artificial intelligence ,business ,Algorithm ,Algorithms ,Cohort study - Abstract
Objective To evaluate the design characteristics of studies that evaluated the performance of artificial intelligence (AI) algorithms for the diagnostic analysis of medical images. Materials and methods PubMed MEDLINE and Embase databases were searched to identify original research articles published between January 1, 2018 and August 17, 2018 that investigated the performance of AI algorithms that analyze medical images to provide diagnostic decisions. Eligible articles were evaluated to determine 1) whether the study used external validation rather than internal validation, and in case of external validation, whether the data for validation were collected, 2) with diagnostic cohort design instead of diagnostic case-control design, 3) from multiple institutions, and 4) in a prospective manner. These are fundamental methodologic features recommended for clinical validation of AI performance in real-world practice. The studies that fulfilled the above criteria were identified. We classified the publishing journals into medical vs. non-medical journal groups. Then, the results were compared between medical and non-medical journals. Results Of 516 eligible published studies, only 6% (31 studies) performed external validation. None of the 31 studies adopted all three design features: diagnostic cohort design, the inclusion of multiple institutions, and prospective data collection for external validation. No significant difference was found between medical and non-medical journals. Conclusion Nearly all of the studies published in the study period that evaluated the performance of AI algorithms for diagnostic analysis of medical images were designed as proof-of-concept technical feasibility studies and did not have the design features that are recommended for robust validation of the real-world clinical performance of AI algorithms.
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- 2019
31. 5‐1: Student Paper: Implementation of Full‐Panel Circuit Models for Interference Estimation Between Touch and Display Operation in On‐Cell Touch AMOLED.
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Choi, Seung-Hun, An, Jun-Yeol, Lee, Jae-Youl, Kim, Si-Woo, Lee, Hyung-Min, and Choi, Yoon-Kyung
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NOISE ,VOLTAGE ,ALGORITHMS ,DIGITAL electronics ,STUDENTS ,NONLINEAR oscillators - Abstract
A full‐panel circuit model of the on‐cell touch AMOLED is introduced to simulate the mutual interference between touch and display operations. The proposed panel model successfully reproduced nonlinear behaviors of the display noise observed in real systems. Also, the reverse‐directional interference, i.e., touch‐to‐display coupling, was simulated, showing that touch stimulation incurs the fluctuation of display charging voltages, possibly causing perceivable line defects. The proposed panel model can be used for various touch/display algorithms to reduce the interference effects and to determine key design parameters for new panels. [ABSTRACT FROM AUTHOR]
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- 2022
- Full Text
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32. Geneious Biologics Annotation Algorithm Beats IgBLAST, MiXCR Says New White Paper
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Algorithms ,Biopharmaceuticals ,Open source software ,Antibodies ,Algorithm ,Open source software ,General interest ,News, opinion and commentary - Abstract
AUCKLAND: Biomatters has issued the following news release: A white paper released today shows an annotation algorithm developed for Geneious Biologics, a commercial software solution for antibody screening and discovery, [...]
- Published
- 2018
33. Geneious Biologics Annotation Algorithm Beats IgBLAST, MiXCR Says New White Paper
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Algorithms ,Biopharmaceuticals ,Open source software ,Antibodies ,Algorithm ,Open source software ,Business ,Business, international - Abstract
AUCKLAND, New Zealand -- A white paper released today shows an annotation algorithm developed for Geneious Biologics, a commercial software solution for antibody screening and discovery, outperforms those of open [...]
- Published
- 2018
34. Letter to the Editor Regarding Paper 'Automatic Computation of Left Ventricular Volume Changes over a Cardiac Cycle from Echocardiography Images by Nonlinear Dimensionality Reduction'
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Ahmad Shalbaf and Hamid Behnam
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Surface (mathematics) ,Geodesic ,Heart Ventricles ,Image registration ,Motion (geometry) ,Geometry ,Image processing ,Article ,Pattern Recognition, Automated ,Cardiovascular Physiological Phenomena ,Motion estimation ,Image Interpretation, Computer-Assisted ,Image Processing, Computer-Assisted ,Humans ,Radiology, Nuclear Medicine and imaging ,Letter to the Editor ,Mathematics ,Ultrasonography ,Radiological and Ultrasound Technology ,Nonlinear dimensionality reduction ,Reproducibility of Results ,Function (mathematics) ,Organ Size ,Computer Science Applications ,Transformation (function) ,Algebraic function ,Isomap ,Rotation (mathematics) ,Algorithm ,Algorithms - Abstract
Question: 1—Echocardiography images Images were acquired from end of diastole to end of systole at different phases (7 phases) within a cardiac cycle by a Vivid 3 GE Health echocardiography machine. To obtain worthy images at denoted phases, it would be dependent to operator (for the best clinical examination). Of course, having assumed images not only were acquired from A4C and A2C but also from short-axis views. Short axis views have not been used at your papers, so some radial, circumferential and sample rotatory data would be missed. Response: It is simply possible for us to record and analyze images of short-axis views. However, according to American Society of Echocardiography (ASE) [1, 2], in the modified Simpson’s rule which is a method for LV volume computation from 2-D echocardiography images, it suffices to acquire apical two and four chamber views (A4C, A2C) for left ventricular (LV) volume computation. Question: 2—Observed data yi′ s Echocardiography images paly role of observed data and they are symbolized by yi′ s. there is a sequence of observed data y1, y2,…,yN. N is the number of obtained images. In fact we have made a chain of displacement, rotation and pure strain or nonrigid transformation (deformation) by these observed data that is started from y1 and is ended up to yN. This chain has some conceptual interpretations of the elasticity of the global left ventricular motion/function and the regional LV fiber arrangement/movement. Response: Yes, it is correct. Question: 3—Embed observed data to a high dimensional space Response: Yes, it is correct. Question: 4—Image processing on yi′ s and geodesic distance between yi′ s Observed data y1, y2,…,yN are embed to a meshed surface sized number of pixels of an image. Translation, rotation and pure deformation of y1, y2,…,yN are occurred/and studied at this surface utilizing the mathematical elasticity theory. A distance metric is defined that computes distances between observed points. Medical interpretations of observed points over the time should be checked/and stated clearly at your manuscripts. Images are not usual images but also are images from the left ventricle. Motion (displacement and velocity), deformation (strain and strain rate) and torsion of each myocardial sample have to be extracted during a cardiac cycle in the mentioned surface. These are used on the creation of graph G referred to their papers. Response: In this stage, we have just computed the distance between the two images in a cardiac cycle using non-rigid image registration regardless of relationship between images over the time. Therefore by this method, the motion and longitudinal deformation (short-axis views are needed to get for radial and circumferential deformations) of LV myocardium between all of two images in a cardiac cycle are extracted (for example, between end systole image and end diastole image, etc.). Then, in other stage of our method (calculation of the matrix of pairwise geodesic distance and apply multidimensional scaling on the resulting geodesic distance matrix to construct the low dimensional data points xi), motion and longitudinal deformation of LV myocardium during a cardiac cycle are extracted. Question: 5—An Isomap f The main tool at this method is the function “f” which is an isometric map [2, 3]. I will be interested to know the structure/formula or relationship of this isometric function which has most probably a lot of practical information of the left ventricular function and structure. I mean, how we can get a good representation of such a this function “f” for heart science study? Is it “f” known as an algebraic function? What information has been coded to fibers (f−1) of this isometric function “f”? Response: Isomap algorithm is one of the most popular sets of nonlinear dimensionality reduction (NLDR) algorithms. This algorithm attempts to extract low-dimensional data points from input points in a high-dimensional space in such a way that pairwise geodesic distances (the distance between two points measured over the manifold) are preserved. So that nearby and far points in high-dimensional space map to nearby and far points in low-dimensional space. This method is frequently used for visualization of medial image set. Detail of this method is described in Tenenbaum et al. and Borg et al. [3, 4]. It should be noted that we do not change the structure or formula of isomap algorithm. We only define a new image distance function based on image registration in calculation of geodesic distance between yi′ s in isomap algorithm. With this modification, Isomap algorithm is specified for assessment of the left ventricular function and structure. However, precise mathematical descriptions of f and (f−1) applied to echocardiography images and using the other NLDR algorithms need further researches in the following of this article. Question: 6—A reconstructed curve on a 2D manifold space & hidden data xi′ s; f(yi) = xi Isometric function results in a reconstructive curve crossing from hidden data (xi′ s) in a surface. It’s natural that some information (maybe clinical information) would betransferred to these hidden points like the curve of LV volume changes and so on and so on. A main question is: what are these new points xi′ s exactly (medically point of view)? What the other data has been come out from these hidden points? I think all of these questions back to gain a good understanding of isometric function “f”. Response: These points xi′ s will probably enable physicians to diagnose and follow up many cardiac structures and functions that also open doors to much more research at imaging cardiology in the future. References 1. AlizadehSani Z, Shalbaf A, Behnam H, Shalbaf R: Automatic computation of left ventricularvolume changes over a cardiac cycle from echocardiography images by nonlinear dimensionality reduction. J Digit Imaging : July, 2014 2. Tenenbaum JB, de Silva V, Langford JC: global geometric framework for nonlinear dimensionalityreduction. Science 290:2319–2323, 2000. Reprint available online: http://web.mit.edu/cocosci/Papers/sci_reprint.pdf 3. Ledesma-Carbayo MJ, Kybic J, Desco M, et al.: Spatio-temporal nonrigid registration for ultrasoundcardiac motion estimation. IEEE Trans Med Imaging 24:1113–1126, 2005.
- Published
- 2015
35. iQIYI Lowers Rebuffering Ratio by 13% with AI Technology, Research Paper on the Subject Accepted by IEEE ICME 2019
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Algorithms ,Technology ,Editors ,Algorithm ,Arts and entertainment industries ,Business - Abstract
2019 APR 12 (VerticalNews) -- By a News Reporter-Staff News Editor at Entertainment Newsweekly -- iQIYI, Inc. (NASDAQ: IQ) ('iQIYI' or the 'Company'), an innovative market-leading online entertainment company in [...]
- Published
- 2019
36. iQIYI Lowers Rebuffering Ratio by 13% with AI Technology, Research Paper on the Subject Accepted by IEEE ICME 2019
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Algorithms ,Technology ,Algorithm ,Business ,Business, international - Abstract
BEIJING, March 25 -- iQIYI, Inc issued the following news release: iQIYI, Inc. (NASDAQ: IQ) ('iQIYI' or the 'Company'), an innovative market-leading online entertainment company in China, today announced that [...]
- Published
- 2019
37. Nebulas publishes Nebulas Rank Yellow Paper to bring value ranking to the blockchain world
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Algorithms ,Algorithm ,Education ,News, opinion and commentary - Abstract
2018 JUL 18 (VerticalNews) -- By a News Reporter-Staff News Editor at Education Letter -- On June 30, Beijing time, Nebulas Research published the 'Nebulas Rank Yellow Paper.' The paper [...]
- Published
- 2018
38. Geneious Biologics Annotation Algorithm Beats IgBLAST, MiXCR Says New White Paper
- Subjects
Algorithms ,Biopharmaceuticals ,Open source software ,Antibodies ,Algorithm ,Open source software ,Biotechnology industry ,Biological sciences ,Business - Abstract
2018 MAY 14 (NewsRx) -- By a News Reporter-Staff News Editor at Biotech Business Week -- A white paper released shows an annotation algorithm developed for Geneious Biologics, a commercial [...]
- Published
- 2018
39. AN ALGORITHM FOR ORGANIZING AND GROUPING DATA RELATED TO THE EXPENDITURESBY EDUCATION LEVELS.
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DIMOVA, Delyana
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DATABASES ,PUBLIC spending ,ALGORITHMS ,EDUCATIONAL benefits ,PRIVATE education ,FECAL contamination - Abstract
This paper presents an algorithm for organizing and grouping data related to the expenditures by education levels in Bulgaria. The built database is used as a source from which the necessary information is searched depending on the entered indicators and time interval. The considered indicators include the public and private expenditures by education levels for the period2012-2020. The extracted subsets of elements are processed and analyzed. In this connection, four groups of variables are calculated and discussed. The results show that the expenditures in four of the education levels (primaryand pre-primary education as well as upper and lower secondary education) grow over the last five years (2016-2020). The quoted indicator inpost-secondary, non-tertiary education isreduced gradually in 2016-2019. During 2015, as compared to 2014, the expenditures in the considered 7 levels of education decreased in the range from 0.29% to 7.81%. This work calculates the share of expenditure for tertiary educationbachelor, master and doctor in comparison with the total expenditures for education in the indicatedtime period. The obtained value of the variable for this education level is the highest. It is 29.74%. The values of this variable are significantly lower for the following two levels of education - tertiary education-professional bachelor and postsecondary, non-tertiary education. They are 1.54% and 0.29% respectively. [ABSTRACT FROM AUTHOR]
- Published
- 2024
40. A Review of Unmanned Aerial Vehicle Applications in Construction Management: 2016–2021.
- Author
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Molina, Andres Acero, Huang, Yilei, and Jiang, Yuhan
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DRONE aircraft ,CONSTRUCTION management ,CONSTRUCTION industry ,CONSTRUCTION projects ,ALGORITHMS - Abstract
With the rapid advancement of Unmanned Aerial Vehicle (UAV) technologies in recent years, their uses have been increasingly adopted in the architecture, engineering, and construction industries. To satisfy the needs of various types of construction projects, a considerable amount of research work has been performed to implement and refine the operations, safety, and accuracy of UAVs. This paper presents the findings of a comprehensive literature review that focuses on UAV research in construction management during the timeframe of 2016 to 2021. A total of 95 papers were identified and collected from a list of 21 relevant journals and conference proceedings, and were then categorized by their research topic, sensor types, and targeted structures. The results of 47 exemplary studies were reported in two categories, namely UAV uses and construction uses. The research topics identified for UAV uses include algorithm, applications, operations, framework, and training, while research topics identified for construction use include inspection, surveying, safety, and monitoring. The connection between the research topics, sensor types, targeted structures, and other advanced technologies were also discussed. This paper summarizes the current results of UAV research in construction management, reviews the methodology, benefits, and limitations of the reviewed literature, and provides valuable knowledge for the future trend of UAV applications in the civil, infrastructure, and construction industries. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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41. An Improved Porosity Calculation Algorithm for Particle Flow Code.
- Author
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Zhang, Siyu, Xin, Xiankang, Cui, Yongzheng, and Yu, Gaoming
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GRANULAR flow ,FLUID flow ,POROSITY ,ALGORITHMS ,EQUATIONS - Abstract
The widely used discrete-element particle flow software PFC's (PFC 7.0 and previous versions) algorithm for calculating porosity is not sufficiently accurate. Because of this, when the particles are densely packed, the solution to the equation produces an algorithm exception for odd calculations of porosity, which results in the inability to calculate the results. This paper, based on a Darcy seepage model of fluid flow through a granular bed, analyzed the shortcomings of the two porosity calculation methods of PFC and the function analysis method. Combining this analysis with the theory of computer graphics, a new and efficient porosity calculation algorithm was proposed. The result showed that the new proposed porosity calculation algorithm calculated a more accurate and reasonable porosity field and made the iterative solution of the CFD equation more stable. This method makes porosity-related models of PFC more accurate. The algorithm can be not only used to calculate porosity, but also applied to other fields. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. A Two-Stage Algorithm Based on Variable Distance Threshold for Estimating Alighting Stops Using Smart Card Data.
- Author
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Wanchen Gao, Shichang Lu, Kai Liu, Dan Li, and Zhi Zuo
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SMART cards ,URBAN transportation ,ALGORITHMS ,CITY traffic - Abstract
A reasonable method for estimating alighting stops can provide a data guarantee for schedule design and vehicle scheduling. However, few studies, to our best knowledge, have addressed this problem using the variable distance threshold for different types of passengers. This paper is based on available smart card data, and a two-stage algorithm is designed to obtain missing alighting stations in the entry-only urban public transportation system. This algorithm divides passengers into seven types, determines varying distance thresholds for different passengers, and includes five assumptions. Based on the first three assumptions, the corresponding subalgorithms are designed, respectively, constituting the first-stage algorithm, and the first match for all passengers' alighting stations is carried out. The second-stage algorithm is designed on the basis of the latter two assumptions. A secondary match is conducted on data that were not successfully matched in the first stage to ensure that alighting stops for all passengers are identified. The proposed methods are verified using urban public transport data from the city of Zhuhai as an example. Research results show that the drop-off stops where approximately 74% of passengers can be determined after matching the first-stage algorithm. The distance thresholds for various passengers are different, and the distance thresholds for the same type of passengers over different days are also different. Compared with the traditional fixed distance threshold, the variable distance threshold for various passengers proposed in this paper can improve the match rate of alighting station estimate, about 9%. By appropriately extending the distance thresholds for different passengers, the match rate for passengers who work or live in the suburbs can be further improved, which is in line with the actual travel status of such passengers. The second-stage algorithm can identify alighting sites for a single or unlinked trip. The efficiency of the methodology proposed in this study can meet the needs for practical applications, which may be applied to urban public transport systems. [ABSTRACT FROM AUTHOR]
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- 2024
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43. Detecting affine equivalences between certain types of parametric curves, in any dimension.
- Author
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Alcázar, Juan Gerardo, Çoban, Hüsnü Anıl, and Gözütok, Uğur
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PARAMETRIC equations ,COMPUTER systems ,HOUGH transforms ,SYMBOLIC computation ,CURVES ,MATHEMATICAL equivalence ,ALGORITHMS - Abstract
Two curves are affinely equivalent if there exists an affine mapping transforming one of them onto the other. Thus, detecting affine equivalence comprises, as important particular cases, similarity, congruence and symmetry detection. In this paper we generalized previous results by the authors to provide an algorithm for computing the affine equivalences between two parametric curves of certain types, in any dimension. In more detail, the algorithm is valid for rational curves, and for parametric curves with nonrational but meromorphic components, it admits an also meromorphic, and in fact rational, inverse. Unlike other algorithms already known for rational curves, the algorithm completely avoids polynomial system solving, and instead uses bivariate factoring as a fundamental tool. The algorithm has been implemented in the computer algebra system Maple and can be freely downloaded and used. [ABSTRACT FROM AUTHOR]
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- 2024
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44. An improved algorithm for diffractive optical element with high imaging quality.
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Ying, Yuchen, Shi, Yile, Ren, Zhijun, and Jiang, Feng
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ALGORITHMS ,DIFFRACTIVE optical elements - Abstract
An improved algorithm for diffractive optical element (DOE) with high imaging quality is proposed in this paper. The algorithm is designed based on amplitude division between signal and noise regions, further subdivides the noise region into two distinct parts. The image quality in the signal region will be effectively improved by employing a partition-constraint strategy, which imposes amplitude freedom on the first noise region while enforcing strict amplitude constraints on the second noise region. The principle of the algorithm, simulation analysis, and experimental results are presented. The simulation and experimental results demonstrate that the algorithm is feasible. [ABSTRACT FROM AUTHOR]
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- 2024
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45. Region‐optimized virtual (ROVir) coils: Localization and/or suppression of spatial regions using sensor‐domain beamforming
- Author
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Richard M. Leahy, Daeun Kim, Stephen F. Cauley, Krishna S. Nayak, and Justin P. Haldar
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Beamforming ,Full Papers—Imaging Methodology ,Computer science ,Iterative reconstruction ,accelerated acquisition ,Signal ,beamforming ,030218 nuclear medicine & medical imaging ,law.invention ,03 medical and health sciences ,multichannel MRI ,0302 clinical medicine ,signal suppression ,law ,Image Processing, Computer-Assisted ,Radiology, Nuclear Medicine and imaging ,Cartesian coordinate system ,Full Paper ,reduced field‐of‐view imaging ,Pulse sequence ,Data Compression ,Magnetic Resonance Imaging ,Electromagnetic coil ,Metric (mathematics) ,Artifacts ,Algorithm ,Algorithms ,030217 neurology & neurosurgery ,Excitation - Abstract
Purpose In many MRI scenarios, magnetization is often excited from spatial regions that are not of immediate interest. Excitation of uninteresting magnetization can complicate the design of efficient imaging methods, leading to either artifacts or acquisitions that are longer than necessary. While there are many hardware‐ and sequence‐based approaches for suppressing unwanted magnetization, this paper approaches this longstanding problem from a different and complementary angle, using beamforming to suppress signals from unwanted regions without modifying the acquisition hardware or pulse sequence. Unlike existing beamforming approaches, we use a spatially invariant sensor‐domain approach that can be applied directly to raw data to facilitate image reconstruction. Theory and Methods We use beamforming to linearly mix a set of original coils into a set of region‐optimized virtual (ROVir) coils. ROVir coils optimize a signal‐to‐interference ratio metric, are easily calculated using simple generalized eigenvalue decomposition methods, and provide coil compression. Results ROVir coils were compared against existing coil‐compression methods, and were demonstrated to have substantially better signal suppression capabilities. In addition, examples were provided in a variety of different application contexts (including brain MRI, vocal tract MRI, and cardiac MRI; accelerated Cartesian and non‐Cartesian imaging; and outer volume suppression) that demonstrate the strong potential of this kind of approach. Conclusion The beamforming‐based ROVir framework is simple to implement, has promising capabilities to suppress unwanted MRI signal, and is compatible with and complementary to existing signal suppression methods. We believe that this general approach could prove useful across a wide range of different MRI applications., Click here for author‐reader discussions
- Published
- 2021
46. Research on the Construction of Emergency Network Public Opinion Emotional Dictionary Based on Emotional Feature Extraction Algorithm.
- Author
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Hui, Fang
- Subjects
PUBLIC opinion ,FEATURE extraction ,WORD frequency ,ALGORITHMS ,SENTIMENT analysis - Abstract
How to strengthen emergency management and improve the ability to prevent and respond to emergencies is an important part of building a harmonious socialist society. This paper proposes a domain emotion dictionary construction method for network public opinion analysis of public emergencies. Using the advantages of corpus and semantic knowledge base, this paper extracts the seed words based on the large-scale network public opinion corpus and combined with the existing emotion dictionary, trains the word vector through the word2vec model in deep learning, expands the emotion words, and obtains the candidate emotion words according to the semantic similarity calculation, So as to generate a domain emotion dictionary. The accuracy rate of emotion discrimination by the emotion dictionary constructed in this paper is 0.86, the recall rate is 0.92. Through the verification of accuracy and recall rate, the construction method proposed in this paper has good accuracy and reliability. Because of the great differences in different experiences and situations of different groups, there will be great differences in views and perspectives on the same event. The key to prevent the public from blindly following the crowd should be to reach groups close to emotional distance, and targeted prevention and control of public opinion can be conducted according to different characteristics of different groups. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. FOUR-COLORING \bfitP \bfsix -FREE GRAPHS. I. EXTENDING AN EXCELLENT PRECOLORING.
- Author
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CHUDNOVSKY, MARIA, SPIRKL, SOPHIE, and ZHONG, MINGXIAN
- Subjects
GRAPH connectivity ,POLYNOMIAL time algorithms ,ALGORITHMS - Abstract
This is the first paper in a series whose goal is to give a polynomial-time algorithm for the 4-coloring problem and the 4-precoloring extension problem restricted to the class of graphs with no induced six-vertex path, thus proving a conjecture of Huang. Combined with previously known results, this completes the classification of the complexity of the 4-coloring problem for graphs with a connected forbidden induced subgraph. In this paper we give a polynomial-time algorithm that determines if a special kind of precoloring of a P6-free graph has a precoloring extension, and constructs such an extension if one exists. Combined with the main result of the second paper of the series, this gives a complete solution to the problem. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. FOUR-COLORING P6-FREE GRAPHS. II. FINDING AN EXCELLENT PRECOLORING.
- Author
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CHUDNOVSKY, MARIA, SPIRKL, SOPHIE, and ZHONG, MINGXIAN
- Subjects
GRAPH connectivity ,POLYNOMIAL time algorithms ,ALGORITHMS ,LOGICAL prediction ,POLYNOMIALS - Abstract
This is the second paper in a series of two. The goal of the series is to give a polynomial-time algorithm for the 4-coloring problem and the 4-precoloring extension problem restricted to the class of graphs with no induced six-vertex path, thus proving a conjecture of Huang. Combined with previously known results, this completes the classification of the complexity of the 4-coloring problem for graphs with a connected forbidden induced subgraph. In this paper we give a polynomial time-algorithm that starts with a 4-precoloring of a graph with no induced six-vertex path and outputs a polynomial-sized collection of so-called excellent precolorings. Excellent precolorings are easier to handle than general ones, and, in addition, in order to determine whether the initial precoloring can be extended to the whole graph, it is enough to answer the same question for each of the excellent precolorings in the collection. The first paper in the series deals with excellent precolorings, thus providing a complete solution to the problem. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. Efficient Path Planning Algorithm for Mobile Robots Performing Floor Cleaning Like Operations.
- Author
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Nair, Vishnu G.
- Subjects
MOBILE robots ,FLOOR design & construction ,SPANNING trees ,ALGORITHMS ,CLEANING - Abstract
In this paper, we introduce an efficient path planning algorithm designed for floor cleaning applications, utilizing the concept of Spanning Tree Coverage (STC). We operate under the assumption that the environment, i.e., the floor, is initially unknown to the robot, which also lacks knowledge regarding obstacle positions, except for the workspace boundaries. The robot executes alternating phases of exploration and coverage, leveraging the local map generated during exploration to construct a STC tree, which then guides the subsequent coverage (cleaning) phase. The extent of exploration is determined by the range of the robot's sensors. The path generation algorithms for cleaning fall within the broader category of coverage path planning (CPP) algorithms. A key advantage of this algorithm is that the robot returns to its initial position upon completing the operation, minimizing battery usage since sensors are only active during the exploration phase. We classify the proposed algorithm as an offline-online scheme. To validate the effectiveness and nonrepetitive nature of the algorithm, we conducted simulations using VRep/MATLAB environments and implemented realtime experiments using Turtlebot in the ROS-Gazebo environment. The results substantiate the completeness of coverage and underscore the algorithm's significance in applications akin to floor cleaning. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Development and validation of an echocardiographic algorithm to predict long-term mitral and tricuspid regurgitation progression
- Author
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Changyu Shen, Evin Yucel, Jiaman Xu, Robert W. Yeh, Jordan B. Strom, Jinghan Cui, Jason H. Wasfy, Warren J. Manning, Varsha K. Tanguturi, Lawrence J. Markson, Yuansong Zhao, Dhruv S. Kazi, Judy Hung, and Patrick M Hyland
- Subjects
Original Paper ,Mitral regurgitation ,business.industry ,valvular heart disease ,External validation ,Mitral Valve Insufficiency ,General Medicine ,Regurgitation (circulation) ,medicine.disease ,Tricuspid Valve Insufficiency ,Treatment Outcome ,Increased risk ,Echocardiography ,Interquartile range ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Derivation ,General hospital ,Cardiology and Cardiovascular Medicine ,business ,Algorithm ,Algorithms ,Retrospective Studies - Abstract
Aims Prediction of mitral (MR) and tricuspid (TR) regurgitation progression on transthoracic echocardiography (TTE) is needed to personalize valvular surveillance intervals and prognostication. Methods and results Structured TTE report data at Beth Israel Deaconess Medical Center, 26 January 2000–31 December 2017, were used to determine time to progression (≥1+ increase in severity). TTE predictors of progression were used to create a progression score, externally validated at Massachusetts General Hospital, 1 January 2002–31 December 2019. In the derivation sample (MR, N = 34 933; TR, N = 27 526), only 5379 (15.4%) individuals with MR and 3630 (13.2%) with TR had progression during a median interquartile range) 9.0 (4.1–13.4) years of follow-up. Despite wide inter-individual variability in progression rates, a score based solely on demographics and TTE variables identified individuals with a five- to six-fold higher rate of MR/TR progression over 10 years (high- vs. low-score tertile, rate of progression; MR 20.1% vs. 3.3%; TR 21.2% vs. 4.4%). Compared to those in the lowest score tertile, those in the highest tertile of progression had a four-fold increased risk of mortality. On external validation, the score demonstrated similar performance to other algorithms commonly in use. Conclusion Four-fifths of individuals had no progression of MR or TR over two decades. Despite wide interindividual variability in progression rates, a score, based solely on TTE parameters, identified individuals with a five- to six-fold higher rate of MR/TR progression. Compared to the lowest tertile, individuals in the highest score tertile had a four-fold increased risk of mortality. Prediction of long-term MR/TR progression is not only feasible but prognostically important.
- Published
- 2021
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