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895 results on '"Pires, Carlos A."'

1. Causal dependencies and Shannon entropy budget -- Analysis of a reduced order atmospheric model

Author

Vannitsem, Stéphane, Pires, Carlos A., and Docquier, David

Subjects
Physics - Atmospheric and Oceanic Physics, Nonlinear Sciences - Chaotic Dynamics
Abstract

The information entropy budget and the rate of information transfer between variables is studied in the context of a nonlinear reduced-order atmospheric model. The key ingredients of the dynamics are present in this model, namely the baroclinic and barotropic instabilities, the instability related to the presence of an orography, the dissipation related to the surface friction, and the large-scale meridional imbalance of energy. For the parameter chosen, the solutions of this system display a chaotic dynamics reminiscent of the large-scale atmospheric dynamics in the extra-tropics. The detailed information entropy budget analysis of this system reveals that the linear rotation terms plays a minor role in the generation of uncertainties as compared to the orography and the surface friction. Additionally, the dominant contribution comes from the nonlinear advection terms, and their decomposition in synergetic (co-variability) and single (impact of each single variable on the target one) components reveals that for some variables the co-variability dominates the information transfer. The estimation of the rate of information transfer based on time series is also discussed, and an extension of the Liang's approach to nonlinear observables, is proposed., Comment: 26 pages, 11 figures, 5 tables

Published
2024

2. CMB constraints on inflection-point inflation with a pseudo-scalar dark matter

Author

Rodrigues, Jamerson G., Oliveira, Vinícius, von Marttens, Rodrigo, Pires, Carlos A. de S., and Alcaniz, Jailson

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract

In this work, we investigate the physical aspects of the inflection-point inflation scenario and assess its observational viability in light of current Cosmic Microwave Background (CMB) data. The model we consider encapsulates the inflaton with a pseudo-scalar (the dark matter candidate) in a complex neutral scalar singlet. The cosmological constraints on the parameters of inflation derived at a high energy scale are translated to a low energy scale by running these parameters. Ensuring the entire Lagrangian to be invariant under a $Z_3$ symmetry with the adequate transformation of the fields, the imaginary part of the singlet decouples from the other scalars of the model. We then investigate if the observational viability of inflation is also compatible with this pseudo-scalar being the dark matter component.We show that the CMB constraints on the inflationary parameters assure that the pseudo-scalar is stable and provides the correct relic dark matter abundance only when the pseudo-scalar is thermally produced., Comment: This manuscript contains 17 pages, 17 figures and 3 tables. Version accepted for publication

Published
2023

3. A general theory to estimate Information transfer in nonlinear systems

Author

Pires, Carlos A., Docquier, David, and Vannitsem, Stéphane

Subjects
Nonlinear Sciences - Chaotic Dynamics
Abstract

A general theory for computing information transfers in nonlinear stochastic systems driven by deterministic forcing and additive and/or multiplicative noises, is presented. It extends the Liang-Kleeman framework of causality inference to nonlinear cases based on information transfer across system variables (Liang, 2016). We present an effective method of computing formulas of the rates of Shannon entropy transfer (RETs) between selected causal and consequential variables, relying on the estimation from data of conditional expectations of the system forcing and their derivatives. Those expectations are approximated by nonlinear differentiable regressions, leading to a much easier and more robust way of computing RETs than the brute-force approach calling for numerical integrals over the state-space and the knowledge of the multivariate probability density of the system. The approach is fully adapted to the case where no model equations are available, starting with a nonlinear model fitting from data of the consequential variables, and the subsequent application of method to the fitted model. RETs are decomposed into sums of single one-to-one RETs plus synergetic terms (of pure nonlinear nature) accounting for the joint causal effect of groups of variables. State-dependent RET formulas are also introduced, showing where in state-space the entropy transfers and local synergies are more relevant. A comparison of the RETs estimations is performed with previous methods in the context of two models: (i) a model derived from a potential function and (ii) the classical chaotic Lorenz system, both forced by additive and/or multiplicative noises. The analysis demonstrates that the new estimations are robust, cheaper, and less data-demanding, providing evidence of the possibilities and generalizations offered by the method and opening new perspectives on real-world applications., Comment: 51 pages, 7 figures. Submitted to Physica D

Published
2023

14. Dead or Alive? Implications of the Muon Anomalous Magnetic Moment for 3-3-1 Models

Author

de Jesus, Alvaro S., Kovalenko, Sergey, Queiroz, Farinaldo S., Pires, Carlos A. de S., and Villamizar, Yoxara S.

Subjects
High Energy Physics - Phenomenology
Abstract

We have witnessed a persistent puzzling anomaly in the muon magnetic moment that cannot be accounted for in the Standard Model even considering the large hadronic uncertainties. A new measurement is forthcoming, and it might give rise to a $5\sigma$ claim for physics beyond the Standard Model. Motivated by it, we explore the implications of this new result to five models based on the $SU(3)_C \times SU(3)_L \times U(1)_N$ gauge symmetry and put our conclusions into perspective with LHC bounds. We show that previous conclusions found in the context of such models change if there are more than one heavy particle running in the loop. Moreover, having in mind the projected precision aimed by the g-2 experiment at FERMILAB, we place lower mass bounds on the particles that contribute to muon anomalous magnetic moment assuming the anomaly is resolved otherwise. Lastly, we discuss how these models could accommodate such anomaly in agreement with existing bounds., Comment: 14 pages, 12 figures

Published
2020
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19. Implementing the inverse type-II seesaw mechanism into the 3-3-1 model

Author

Pires, Carlos Antônio de Sousa, de Freitas, Felipe Ferreira, Shu, Jing, Huang, Li, and Olegário, Pablo Wagner Vasconcelos

Subjects
High Energy Physics - Phenomenology
Abstract

After the LHC is turning on and accumulating more data, the TeV scale seesaw mechanisms for small neutrino masses in the form of inverse seesaw mechanisms are gaining more and more attention once they provide neutrino masses at sub-eV scale and can be probed at the LHC. Here we restrict our investigation to the inverse type II seesaw case and implement it into the framework of the 3-3-1 model with right-handed neutrinos. As interesting result, the mechanism provides small masses to both the standard neutrinos as well as to the right-handed ones. Its best signature are the doubly charged scalars which are sextet by the 3-3-1 symmetry. We investigate their production at the LHC through the process $\sigma (p\,p \rightarrow Z^*, \gamma^* ,Z^{\prime} \rightarrow \Delta^{++}\,\Delta^{--})$ and their signal through four leptons final state decay channel., Comment: 21 pages, 10 figures, minor changes, reference updated

Published
2018
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25. Digital Twin for a Frequency Mixer Used as a Phase Sensor.

Author

Pires, Carlos, Abreu, Manuel, Godinho, Isabel, Agostinho, Rui, and Sousa, João A.

Abstract

The Portuguese Institute for Quality is responsible for the realization and dissemination of the frequency standard in Portugal. There are several techniques for frequency transfer, but we use a frequency mixer to detect phase variations between two light signals with different wavelengths, traveling along an optical fibre. In this paper, we present the development of a digital twin (DT) that replicates the use of a frequency mixer to improve the frequency transfer problem. A setup was built to train and validate the technique: a frequency mixer was used to determine the phase difference between the two signals, which are caused by temperature gradients in the fibre, together with real-time temperature data from sensors placed along the fibre and on the mixer itself. The DT was trained with two machine learning algorithms, in particular, ARIMA and LSTM networks. To estimate the accuracy of the frequency mixer working as a phasemeter, several sources of uncertainty were considered and included in the DT model, with the goal of obtaining a phase value measurement and its uncertainty in real time. The JCGM 100:2008 and JCGM 101:2008 approaches were used for the estimation of the uncertainty budget. With this work, we merge DT technology with a frequency mixer used for phase detection to provide its value and uncertainty in real time. [ABSTRACT FROM AUTHOR]

Published
2024
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26. Topo‐MSJ: Search for groups of POIs with qualitative processing of spatial regions.

Author

Rafael, Gabriel Joseph Ramos, Pontes, Carlos V. A. M., de Oliveira, Maxwell Guimarães, Pires, Carlos Eduardo Santos, and Campelo, Claudio E. C.

Subjects
TIME management, SEARCH engines, TRAVEL planning, NEIGHBORHOODS, ALGORITHMS
Abstract

To alleviate challenges related to mobility, travel planning, and time management, individuals commonly encounter the necessity of locating points of interest (POIs) that either share the same physical building or are situated within interconnected buildings. However, existing search engines face difficulties in retrieving groups of places based on keywords and topological relations among their respective regions, for instance, when a user wants to find a residential building that is connected to a green area. This is primarily due to their limited consideration of POIs as mere points in space, rather than recognizing the polygonal geometries of their boundaries. In this work, we present a spatial search solution based on textual and topological query parameters for efficiently retrieving groups of POIs whose neighborhoods and boundaries satisfy specific restrictions. To perform this type of search efficiently, we propose the Topo‐MSJ algorithm, building upon the well‐established "Multi‐Star‐Join" (MSJ) algorithm, by including an efficient approach to handle queries with topological requirements. To assess the effectiveness of our solution, we conduct a performance evaluation by comparing the execution time of Topo‐MSJ with equivalent spatial SQL queries. The experimental analysis, performed on real datasets, reveals that Topo‐MSJ exhibits a faster execution time compared with equivalent SQL queries, additionally providing a simplified spatial pattern query notation. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Synergistic Dynamic Theory of Complex Coevolutionary Systems: Disentangling Nonlinear Spatiotemporal Controls on Precipitation

Author

Perdigão, Rui A. P., Pires, Carlos A. L., and Hall, Julia

Subjects
Mathematics - Dynamical Systems, Physics - Atmospheric and Oceanic Physics, 37-XX, 86A22, 86A10
Abstract

We formulate a nonlinear synergistic theory of coevolutionary systems, disentangling and explaining dynamic complexity in terms of fundamental processes for optimised data analysis and dynamic model design: Dynamic Source Analysis (DSA). DSA provides a nonlinear dynamical basis for spatiotemporal datasets or dynamical models, eliminating redundancies and expressing the system in terms of the smallest number of fundamental processes and interactions without loss of information. This optimises model design in dynamical systems, expressing complex coevolution in simple synergistic terms, yielding physically meaningful spatial and temporal structures. These are extracted by spatiotemporal decomposition of nonlinearly interacting subspaces via the novel concept of a Spatiotemporal Coevolution Manifold. Physical consistency is ensured and mathematical ambiguities are avoided with fundamental principles on energy minimisation and entropy production. The relevance of DSA is illustrated by retrieving a non-redundant, synergistic set of nonlinear geophysical processes exerting control over precipitation in space and time over the Euro-Atlantic region. For that purpose, a nonlinear spatiotemporal basis is extracted from geopotential data fields, yielding two independent dynamic sources dominated respectively by meridional and zonal circulation gradients. These sources are decomposed into spatial and temporal structures corresponding to multiscale climate dynamics. The added value of nonlinear predictability is brought out in the geospatial evaluation and dynamic simulation of evolving precipitation distributions from the geophysical controls, using DSA-driven model building and implementation. The simulated precipitation is found to be in agreement with observational data, which they not only describe but also dynamically link and attribute in synergistic terms of the retrieved dynamic sources., Comment: 40 pages, 10 figures

Published
2016

29. Limites e fronteiras: Ronda noturna de Paulo Climachauska

Author

Pires, Carlos

Subjects
Arte contemporânea brasileira, Paulo Climachauska, Construtivismo, Arte moderna brasileira, Modernidade.
Abstract

O presente artigo investiga a exposição de Paulo Climachauska Ronda noturna realizada em 2015. Momentos centrais das narrativas sobre a modernidade e a arte brasileiras são colocados em xeque nesse conjunto de trabalhos por meio do contraste da racionalidade construtiva com a violência das metrópoles brasileiras. Ronda Noturna elabora, assim, nexos sociais, políticos, culturais e econômicos da realidade e da arte promovendo uma leitura complexa das relações de poder transnacionais.

Published
2018

32. Translation, Cross-Cultural Adaptation, and Validation of the Fear of Dependency Scale Into European Portuguese.

Author

Pires, Patrícia Maria, Carvalho, Joana, Pires, Telma, Pires, Carlos, and Ribeiro, Oscar

Subjects
FEAR, CROSS-sectional method, PEARSON correlation (Statistics), INDEPENDENT living, PSYCHOLOGICAL distress, RESEARCH funding, CRONBACH'S alpha, T-test (Statistics), DATA analysis, RESEARCH methodology evaluation, TRANSLATIONS, RESEARCH evaluation, STATISTICAL sampling, FUNCTIONAL status, DESCRIPTIVE statistics, LINGUISTICS, RESEARCH methodology, PSYCHOMETRICS, NEUROPSYCHOLOGICAL tests, ANALYSIS of variance, STATISTICS, SOCIODEMOGRAPHIC factors, BARTHEL Index, DATA analysis software, DEPENDENCY (Psychology), CULTURAL pluralism, POSTURAL balance, ACCIDENTAL falls, WELL-being, SELF-perception, REGRESSION analysis
Abstract

Background: Dependency is defined as a person's inability to meet basic human needs. In the context of aging, biopsychosocial changes compromise functionality, predisposing older adults to rely on others to perform daily activities. Fear of dependency describes the fear people have of appearing and/or being weak and/or reliant on others. The Fear of Dependency Scale (FDS), developed by Adams-Price and Ralston in 2016, aims to assess the fear of dependency by measuring an individual's attitudes toward being helped. Objective: This study presents a European Portuguese version of the FDS and examines its psychometric properties (internal consistency reliability and content validity). Methods: The translation and both cultural and linguistic adaptation of the FDS were performed by a panel of experts. A cross-sectional study was then performed to evaluate the psychometric properties (in terms of its reliability and validity) of the translated version of the FDS among a sample of 100 community-dwelling older adults. Results: The European Portuguese version of the FDS exhibited good psychometric properties. The scale's internal consistency was 0.84. Conclusions: The European Portuguese version of the FDS is a reliable, valid, and practical instrument for assessing the fear of dependency in older adults in the Portuguese population. It can be used in the context of health care provision and research. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Exploring alternative crop rotations to continuous winter wheat for agricultural intensification in the US central Great Plains

Author

Massigoge, Ignacio, primary, Baral, Rudra, additional, Cominelli, Sofía, additional, Denson, Ethan, additional, Helguera, Paula García, additional, Guareschi, Cesar, additional, Simão, Luana M., additional, Rud, Joaquín Peraza, additional, Pires, Carlos B., additional, Dille, J. Anita, additional, Lollato, Romulo P., additional, Min, Doohong, additional, Patrignani, Andres, additional, Ruiz Diaz, Dorivar A., additional, Hefley, Trevor, additional, Lira, Sara, additional, Prasad, P.V. Vara, additional, Rice, Charles W., additional, Hatfield, Jerry, additional, and Ciampitti, Ignacio A., additional

Published
2024
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38. Apresentação

Author

Pires, Carlos, primary, Tavares Raffaini, Patricia, additional, Frederico, Aline, additional, and Lima, Graça, additional

Published
2024
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39. Abordagem ao paciente pediátrico traumatizado: desafios e atualizações

Author

Rocha Menezes, Camilli Vitória, primary, De Oliveira Siqueira, Vinicius, additional, Tomás Chicarino, Mariana, additional, De Paula Almeida, Giullia, additional, Pimenta Noguera Servin, Daniella, additional, Bernardes Cortez Vendramini, Andrea, additional, Pires, Carlos Gabriel, additional, Gomes de Souza, Lisiane, additional, Simonetti Marinho, Rafaela, additional, Santana Seraphim, Rafaela, additional, Gamonar Faria, Faiçall, additional, Chicourel Hipólito Rodrigues, Viviane, additional, Dos santos ribeiro, Italo, additional, Pedrosa Vieira, Camilla Maria, additional, Thayse Pessoa Araújo, Gilda, additional, De Souza Almeida, Íris Fernanda, additional, Nobre de Alencar, Arthur, additional, Da Rosa Machado, Laryssa, additional, and Da Rosa Machado, Augusto Felipe, additional

Published
2024
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40. Trauma e Emergência - Teoria e Prática

Author

Macedo, Alice Freitas, primary, Mugayar, Amanda Amorim, additional, Souza, Ana Carolina Azevedo, additional, Ribeiro, Ana Sofia Sousa, additional, Oliveira, Beatriz Carvalho de, additional, Barbosa, Bernardo Brandão, additional, Costa, Caio Pluvier Duarte, additional, Nunes, Carol Baby, additional, Massahud, Felipe Corrêa, additional, Maximiano, Marianna Letícia de B., additional, Luvizotto, Pedro Henrique de M., additional, Braga, Samuel Vitorio, additional, Mello, Thiago Souza de, additional, Barros, Fernando de, additional, Silva, Antônio Augusto de Melo da, additional, Silva, Angel Adriany da, additional, Zvicker, Aliana Lunardi, additional, Rocha, Anne Karoline Cardozo da, additional, Thomé, Carolina Weibel, additional, Santos, Maiara Raíssa dos, additional, Ando, Paula Kaori, additional, Marconi, Victor Toniolo, additional, Becker, Karin Aparecida, additional, Bahten, Luiz Carlos Von, additional, Paviato, Arthur Barata, additional, Oliveira, Bianca Nascimento, additional, Colares, Carlos Augusto Chaves, additional, Mandacaru, Gabriel Plazzi, additional, Soares, Julia Florenzano, additional, Souza, Larissa Mendes de, additional, Lotfi, Luana de Oliveira, additional, Soares, Luisa Faria Guimaraes, additional, Lima, André Ferreira de, additional, Santos, Emiliano Miguel Esteves dos, additional, Reis, Claudio Kalume, additional, Santos, Miriam Vitória Rodrigues dos, additional, Brancalhoni, Victoria Almeida, additional, Macêdo, Ângela Caroline Dias Albino Destro de, additional, Zica, Maria Clara Rocha, additional, Borges, Danielle Silva, additional, Souza, Gabriela Medeiros de, additional, Dotto, Raisa Natalia, additional, Almeida, Bruna Auta Damasceno de, additional, Barreto, Larissa Maia Lemos, additional, Pereira, Raissa Lohayne, additional, Rosário, Isabelle Souza do, additional, Gomes, Laura Vitória Melo, additional, Borges, Geovana Martins, additional, Martins, Letícia Ribeiro de Souza, additional, Silva, Victória Cândido da, additional, Maia, Ludmila Ferrante Silveira, additional, Pereira, Gabriela Saldes Campos, additional, Morais, Fernanda Ferreira de, additional, Liam, Renata de Paula, additional, Magueta Filho, Vistam Luiz, additional, Oliveira, Filipe Altino de, additional, Brito Filho, Marcos Torres de, additional, Marques, Sarah Souza, additional, Gonçalves, Hélder Santos, additional, Pereira, Matheus Martins, additional, Santos, José Abimael da Silva, additional, Matos, Ana Caroline Gusmão de, additional, Jesus, Carla Viviane Freitas de, additional, Leal, Roberta Kayane Silva, additional, Santana, Monique Lordelo da Silva de, additional, Mesquita Junior, Renato Morais de Almeida, additional, Ferreira, Alessandro Santos, additional, Fonseca, Mateus Rodrigues, additional, Macedo, Marcos Miranda, additional, Fontinha, Paulo Roberto Bastos, additional, Campos, Felipe Monnerat, additional, Ferreira, Victor Simões, additional, Custódio Junior, Demar, additional, Menezes, Flavio Tarcilo Ribeiro, additional, Kneipp, Angélica Freitas da Silva, additional, Siqueira, Orlando Hiroshi Kiono, additional, Vilhena, Pedro Parenti do Couto, additional, BAPTISTELLA, GABRIEL, additional, MENDONÇA, LUCAS, additional, LOMONACO, ANA CLARA C., additional, SOUZA, JÚLIA TRONE VENTURA, additional, GUIMARÃES, LAÍS LEAL, additional, SCHIAVONI, LARA CABRAL, additional, MIYASHIRO, LETICIA MIDORI MURAMATSU, additional, Ortega, Mirthes Monteiro, additional, Ortega, Gabriela Monteiro, additional, Mattos, Antônio Ferreira Louzada de, additional, Fraga, Daniele da Rosa, additional, Nadais, Giovana Lopes, additional, Robertson, Giovane Lourenço, additional, Brandão, Natália Lima de Sousa, additional, Almeida, Raphael Pizzatto Raposo, additional, Faria, Rebeca Borél Calado, additional, Pires, Thatiana da Silva, additional, Osanan, Gabriel Costa, additional, Rodrigues, Daisy Martins, additional, Gonçalves, Ana Luiza Oliveira Aranda, additional, Pereira, Gabriel Ruzza De Avila, additional, Monteiro, Giovana Bastos, additional, Silveira, João Vitor Flores, additional, Pinheiro, Letícia De Oliveira, additional, Oliveira, Romildo Rodrigues De, additional, Fukuti, Yohana Teodoro Costa, additional, Ambrosio, Marcos Flavio Spinola, additional, Barbosa, Ana Luiza Leal, additional, Cunha, Deise Lima, additional, Padrão, Lara Helena Lemos Fuzari, additional, Cypriano, Rafael Vago, additional, Cançado, Renata Pittella, additional, Neves, Gabriela Carneiro, additional, Arantes, Bernardo de Castro Borges, additional, Baesso, Isadora Bitencourt, additional, Jardim, Lucas Santos, additional, Naves, Maria Eduarda Ferreira, additional, Araujo, Marcos Soares, additional, Valadares, Pedro Augusto Rosa, additional, Freire, Tiago Quelotti, additional, Diniz, Cláudio Galuppo, additional, Dias, Vanessa Cordeiro, additional, Silva, Vânia Lúcia da, additional, Machado, Alessandra Barbosa Ferreira, additional, Chagas, Étore Goulart, additional, Costa, Vitor Cardoso, additional, Borges, Guilherme Henrique, additional, Costa, Marcelo Dias Moreira de Assis, additional, Paranhos, Luiz Renato, additional, Mendes, Mayara Madeira, additional, Azevedo, Gustavo Paiva, additional, Amaral, Débora Toledo, additional, Silva, João Inácio Migliorini, additional, Alarcon, Mariane de Araújo Messias, additional, Vasconcelos, Sócrates Christian Faria de, additional, Gazzinelli, Mariana, additional, SILVA, Patrícia de Cássia Neri Beraldo, additional, Araújo, Milena Barbosa De, additional, Lacerda, Gustavo Frade, additional, Lopes, Ana Carolina Araújo Barbosa, additional, Rocha, Edson Siqueira Da, additional, Barreto, Isabella Siqueira, additional, Denizar, João Gabriel Medina, additional, Teixeira, Larissa Ribeiro, additional, Abreu, Lucas Coelho De, additional, Fernandes, Mariana Macedo, additional, Paiva, Paula Costa Vieira, additional, Ferreira, Paula Souza, additional, Oliveira, Paulo Vitor Kelmon Silva de, additional, Piva, Carolina Ticianeli, additional, Oliveira, Lucas Santos de, additional, Pires, Carlos Henrique Nunes, additional, Ibiapina, Ana Clara Monteiro, additional, Santos, Ana Cristina Araújo dos, additional, Soares, Alícia Rebeca Silva, additional, Silva, Gabriel Oliveira da, additional, Romero, Lia Raquel Lustosa Costa, additional, Alves, Loenne da Silva Santos, additional, Teixeira, Natalia Da Silva, additional, Passos, Ester da Silva Sousa, additional, Louzeiro, Karolaine Rodrigues, additional, Silva, Jordeilson Luis Araújo, additional, Zanetti, Bernardo Valle, additional, Ordono, Bianca Alves Mira, additional, Andrade, Daniel Camargo de, additional, Souza, Jéssica Castro Mattos de, additional, Borges, Matheus Salgado Guedes, additional, Figueira, Matheus Teperino Percegoni, additional, Paschoalino, Miguel Guimarães da Silva, additional, Dutra, Milla Giancristofaro, additional, Buettel, Ricardo Poubel, additional, Fernandes, Vitor Hugo Lobo, additional, Gomes, Marina Marques Novais, additional, SANTANA, BÁRBARA REIS DE, additional, Valois, Gabriel Morais, additional, Souza, Júllia Beatriz Araujo, additional, Prado, Lídia Ruth Oliveira, additional, Souza, Luana Thaynar Correia de, additional, Araújo, Sabrina Layra Souza, additional, Matos, Cássia Cristina Ferreira, additional, Alves, Carolina Pantuzzo Leão, additional, Prado, Ingrid Silva, additional, Martins, Isabela de Souza Freitas, additional, Lara, Marcela Luíza Amaral Resende, additional, Magalhães, Mariana Mortimer, additional, Buzzi, Mayraline de Castilho, additional, Gysegem, Sophie Barreto Van, additional, Lima, Yvnna Santos, additional, Vieira, Arthur Sobral, additional, Andrade, Gabrielle Barbosa Lima de, additional, Souza, Gabrielle Barbosa Vasconcelos de, additional, Rodrigues, Isabella Moreira Saraiva, additional, Dantas, Lucas Gomes, additional, Souza, Mylenna Bomfim, additional, Almeida, Maria Bernadete Galrão de, additional, Macedo, Alice Freitas, additional, Souza, Ana Carolina de Azevedo, additional, Nunes, Caroline Baby, additional, Maximiano, Mariana Letícia de Bastos, additional, Luvizotto, Pedro Henrique de Morais, additional, Baltar, Valéria Trancoso, additional, Oliveira, Paulo Henrique Tavares de, additional, Damasco, Paula Hesselberg, additional, Guaraná, Thais, additional, Ferraro, Matheus Cruz, additional, Flores, Pedro Henrique Cordeiro, additional, Martins, Otávio Cosendey, additional, Cruz Filho, José Emiliano, additional, Ribas, Igor Magaton, additional, Gomes, João Pedro Medeiros, additional, Fernandes, Isabelle de Fatima, additional, Rodrigues, Murilo Oliveira, additional, Santos, Robbert Brunelly, additional, Athayde, Victor Hugo Ferrante Maia, additional, Araujo, Isabela Ayres de, additional, Rodrigues, Larissa Caroline, additional, Lima, Luísa Canedo, additional, Ribeiro, Luiz Gustavo Mesquita, additional, Macedo, Maria Luísa Miranda, additional, Pires, Matheus Rodrigues, additional, Gama, Rafael Muniz, additional, Silva Filho, Wilson Ferreira da, additional, Andrade, Isadora Riberio da Costa, additional, Castro, Nelissa Abud de, additional, Pereira, Larissa Royer, additional, Aguiar, Nathalia Marra, additional, Teixeira, Letícia Fernandes, additional, Araújo, Blenda Maria Soares de, additional, Paranhos, Rafaela Moreira, additional, Abreu, Gabriel Ramos de, additional, Santana, Dayane Campos, additional, Andrade, Marianny Rodrigues de, additional, Gonçalves, Bianca Aparecida, additional, Fonseca, Giulio Gori, additional, Figueiredo, Gabriel Augusto de Souza, additional, Abreu, Gustavo Ramos de, additional, Freire, Vinícius Benatti, additional, Silva, Ana Cristina Simões e, additional, Souza, Lucas Cressoni de, additional, Martinelli, Mário Henrique de Lima, additional, Romano, João Vicente Tadeo Russo, additional, Sacchi, Leonardo Moysés, additional, Souza, Thales Andolfo de, additional, Damin, Antonio Eduardo, additional, Miranda, Lorena Araújo, additional, ROCHA, LAURA COELHO PIRES, additional, Fontana, Luiza Lubiana, additional, Mafra, Sofia Cunha, additional, Cruvinel, Amanda Reis, additional, Azevedo, Gabriela Figueira Caetano, additional, Rocha, Luiza Mara Vieira, additional, Ferreira, Maria Luiza Ludermir, additional, Camilo, Mariana Prates, additional, Moreira, Mariana Luiza, additional, Nassur, Stella Fernandes, additional, Aride, Ana Clara Savignon, additional, Brant, Lara Azevedo Prais Caldeira, additional, França, Marina Cotta, additional, Benazet, Luiz Fernando, additional, Oliveira, Alexandre Ribeiro de, additional, Sasaki, Caroline Suemi, additional, Yoshikawa, Catherine Alexia, additional, Fernandes, Fernanda Magalhães, additional, Uehara, Gabriela Mayumi, additional, Gonçales, Isabela de Alencar, additional, Magalhães, Karen Araújo, additional, Canavarros, Lara Azambuja, additional, Barbosa, Layala Stefane de Paula, additional, Gondim, Luiz Fellyppe Nunes, additional, Ribeiro, Nathaly Castro, additional, Fiorante, Rafael Bavaresco, additional, Salomé, Túlio Máximo, additional, Trichez, Virginia Demarchi Kappel, additional, Oliveira, Alexandre Chaves Jubé, additional, Brommonschenkel, Alexandre De Castro, additional, Freitas, Ana Cristina Dias, additional, Guerra, Carine Marina Dias, additional, Tolentino, Daiany Rodrigues, additional, Pereira, Felipe Magno Alves, additional, Amaral, Felipe Augusto Aparecido, additional, Vale, Gabriela Cecília Araújo, additional, Jesus, Lara Souza Pêgo de, additional, Moreira, Letícia Isabella de Souza, additional, Melo, Marina Viana, additional, Viana, Paulo Maurício Campos, additional, Rocha, Rafaela Rossi, additional, Dias, Samuel Filippe Motta Martins, additional, Arantes, Vinícius Mendes Carvalho, additional, Souza, Lorrany Cristina Silva de, additional, Soares, Diuliana Marina, additional, Puppim, Pedro Henrique Bastos, additional, Silva, Iago José Cunha, additional, Batista, Luna Brenda Carvalho Abade Moura, additional, Campolina, Gabriela Arbex, additional, Ribeiro, Déborah Maria Gonçales, additional, Fernandes, Fernanda Pimenta, additional, Elias, Gabriela Couto, additional, Freitas, Hanna Luísa de Oliveira, additional, Rabello, Laura Nacife, additional, Silva, Matheus Andrade Almeida e, additional, Fonseca, Bia Yamashita, additional, Souza, Ana Elisa de Freitas, additional, Silva, Isabela Marques, additional, Rodrigues, Maria Eduarda Santos, additional, Lopes, Carla Carolina Alves, additional, Silva, Camila Rocha Cunha, additional, Gonçalves, Cláudia Maria de Souza, additional, Salles, Júlia de Souza, additional, Barbosa, Paullinne Ariel Nogueira, additional, Novais, Rommel Lacher Rachid, additional, Cezillo, Marcus Vinicius Boaretto, additional, Heitor, Frederico de Almeida, additional, Cardoso, Nivaldo de Moraes, additional, Oliveira, Carlos Reinaldo de, additional, Silva, David Henrique Ferreira da, additional, Oliveira, Eduarda Gomes de, additional, Silva, Giovanna Favaro da, additional, Azevedo, Mariana de Souza, additional, Silva, Julia Vilafranca Soares da, additional, Dipe, Thiago Lima, additional, Coutinho, Laura Acevedo, additional, Coutinho, Laura Azevedo, additional, Galdino, Roberto, additional, Almeida, Bruna Damasceno de, additional, Maguetas Filho, Wistan Luiz, additional, Maiolini, Mariana Gazzinelli, additional, Maximiano, Marianna Letícia de Bastos, additional, Andrade, Isadora Ribeiro da Costa, additional, Gama, Rafael Munniz, additional, Rabelo, Rodrigo Guimarães, additional, Dias, Maria Luiza Patrão, additional, Cotta, Marina França, additional, Fiorante, Rafael Bravaresco, additional, Freitas, Ana Cristina Dias de, additional, Amaral, Felipe Augusto Aparecido do, additional, and Aguiar, Alessandra N de, additional

Published
2021
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41. Detection and Evaluation of Cheating on College Exams Using Supervised Classification

Author

Cavalcanti, Elmano Ramalho, Pires, Carlos Eduardo, Cavalcanti, Elmano Pontes, and Pires, Vládia Freire

Abstract

Text mining has been used for various purposes, such as document classification and extraction of domain-specific information from text. In this paper we present a study in which text mining methodology and algorithms were properly employed for academic dishonesty (cheating) detection and evaluation on open-ended college exams, based on document classification techniques. Firstly, we propose two classification models for cheating detection by using a decision tree supervised algorithm. Then, both classifiers are compared against the result produced by a domain expert. The results point out that one of the classifiers achieved an excellent quality in detecting and evaluating cheating in exams, making possible its use in real school and college environments

Published
2012

43. SAÚDE MENTAL - VOLUME 1

Author

Santos, Aline Neli Dos, primary, Ferreira, Verônica Moreira Souto, additional, Ribeiro, Adriano Diego Oliveira, additional, Pacheco, Lucas Gama, additional, Santos, Rayssa Marise Da Costa Dos, additional, Oliveira, Aline Da Silva, additional, Oliveira, Eliany Nazaré, additional, Santos, Ludmilla Alves, additional, Maciel, Jacques Antonio Cavalcante, additional, Pereira, Paulo Almeida, additional, Almeida, Paulo Cesar De, additional, Vasconcelos, Maristela Inês Osawa, additional, X, Francisco R G, additional, Lima, Gleisson Ferreira, additional, Campos, Marcos Pires, additional, Lima, Danyela Dos Santos, additional, Aragão, Helianda Linhares, additional, França, Sabrina Da Silva, additional, Melo, Francisca Verônica Dias, additional, Freire, Magda Almeida, additional, Ximenes, Francisco Rosemiro Guimarães, additional, Almeida, Paulo César De, additional, Freire, Marcela Almeida, additional, Lima, Gleisson Ferrera, additional, Viana, Lorenna Saraiva, additional, Rodrigues, Caio San, additional, Silva, Emília Do Nascimento, additional, Silva, Lídia Cristina Monteiro Da, additional, Andrade, Carla Suyane Gomes De, additional, Costa, João Breno Cavalcante, additional, Costa, Silvinha De Sousa, additional, Sousa, Antônia Márcia Macêdo De, additional, Feijó, Ivan Gabriel Sousa, additional, Nascimento, Ravena Silva Do, additional, Lima, Letícia Mara Cavalcante, additional, Fernandes, Márcia A, additional, Melo, Cris Aragão, additional, Feitosa, Lucíola Galvão Gondim Corrêa, additional, Ribeiro, Ivonizete Pires, additional, Tapety, Fabrício Ibiapina, additional, Ribeiro, Amanda Alves de Alencar, additional, Fernandes, Márcia Astrês, additional, Pillon, Sandra Cristina, additional, Rocha, Eukália Pereira da, additional, Ribeiro, Amanda Alves De Alencar, additional, Feitosa, Carla Danielle Araújo, additional, Rocha, Daniel de Macêdo, additional, Lima, Larissa Alves de Araújo, additional, Oliveira, Ana Lívia Castelo Branco de, additional, Monteiro, Claudete Ferreira de Souza, additional, Rocha, Daniel De Macêdo, additional, Olinda, Krieger Rhelyni De Sousa, additional, Oliveira, Aline Costa De, additional, Vasconcelos, Claudia Daniella Avelino, additional, Sousa, Ivana Cavalcante Lemos De, additional, Nogueira, Lídya Tolstenko, additional, Batista, Matheus Neres, additional, Silveira, Keiscielly Assunção Faria, additional, Brito, Renata Cristina Vieira De, additional, Santos, Jehovahnna Anttonioni, additional, Puglia, Ana C, additional, Pinheiro, Elisama Pereira, additional, Peres, Camila Luíza, additional, Rios, Marcella Maciel, additional, Gomes, Pedro Vinícius Teles, additional, Carvalho, Lanna C, additional, S, Joel A, additional, Veloso, Eliana A N, additional, Zaibak, Carla Azevedo, additional, Gonçalves, Amanda Carolina de Melo, additional, Dias, Karolinne Dorneles, additional, Gonçalves, Rafael Salles de Melo, additional, Freitas, Marcos Vinícios De, additional, Franke, Djonathan Daniel, additional, Puglia, Ana Clara, additional, Carvalho, Lanna do Carmo, additional, Sousa, Joel Alves De, additional, Veloso, Eliana Almeida Naves, additional, Gonçalves, Amanda Carolina De Melo, additional, Gonçalves, Rafael Salles De Melo, additional, Souza, Vitor Santos de, additional, Faria, Bárbara Caroline Dias, additional, Sacramento, Luiz Gustavo Guimarães, additional, Oliveira, Nathália Cristian Ferreira de, additional, Goll, Yan Lopes, additional, Souza, Camila Alencar Monteiro de, additional, Costa, Grace Ellen Pereira, additional, Soares, Ana Cecilia Cardozo, additional, Alves, Rita De Cássia Loiola, additional, Manoel, Poliana Zanotto, additional, Bezerra, Vinícius Grangeiro Leite, additional, Maciel, Nathanael De Souza, additional, Nascimento, Cidianna Emanuelly Melo do, additional, Dias, Maria Fernanda Figueiredo Lanza, additional, Bretas, Amanda Duarte, additional, Fernandes, Fernanda Pimenta, additional, Ferreira, Amanda Cambraia, additional, França, Jéssica Helena Souza de, additional, Santos, Tatiane Lima, additional, Oliveira, Miriam Souza, additional, Monteiro, Ana Paula Monteiro E, additional, Silva, Danielle Oliveira Da, additional, Silva, David Alfredo Cordeiro Da, additional, Pantoja, Gylmara Melo, additional, Matos, Isabela Ceres Da Silva, additional, Nascimento, Josilene Santana Do, additional, Lopes, Kézia Dias, additional, Silva, Lucas Eduardo Silva E, additional, Silva, Lucimara Ribeiro Da, additional, Pantoja, Marcela Thaíse Machado, additional, Mendes, Mayara Pinheiro, additional, Freitas, Thamires Cabral, additional, Guimarães, Victória Lima, additional, Lins, Ana Carolina Araújo De Almeida, additional, Winter, Marcella Lourenço, additional, Ribeiro, Christiane Carvalho, additional, Siqueira-, Thayane Santos, additional, Dias, Andrielly Késia Santos, additional, Celestino, Ariel Almeida, additional, Souza, Mariana Do Rosário, additional, Santos, Alexrangel Henrique Cruz, additional, Santos, Beatriz Almeida, additional, Melo, Ítalo Fernando Lisboa De, additional, Barbosa, Luciene, additional, Silva, Cindy Menezes, additional, Marinho, Déborah Danielly Tertuliano, additional, Rodrigues, Priscylla Frazão, additional, Fonseca, Olívio Joaquim, additional, Barbosa, João Victor Carvalho, additional, Ferraz, Isabella Cabral, additional, Lima, Cláudio Vinícius Barroso Queirós de, additional, Souza, Pedro Henrique De, additional, Lins, Raphaela da Penha, additional, Silva, Ronaldo de Ataide Nicácio, additional, Passos, Evelyn Amorim Dias, additional, Segundo, Manoel Pedro de Farias, additional, Silva, Ellen Dayanne Barros, additional, Melo, Guilherme Silva De, additional, Oliveira, Nathália Lopes De, additional, Santos, Nadilly Sobral Monteiro Dos, additional, Lopes, Carla Carolina Alves, additional, Castro, Beatriz Pellegrini, additional, Paula, Camila da Costa, additional, Cupertino, Gabriel Buffon, additional, Paula, Larissa Ottoni Estevanin de, additional, Sanna, Isabela Pimenta, additional, Andrade, Leonardo Isolani e, additional, Oliveira, Paulo José Soares André, additional, Souza, Tamara Rodrigues Fonseca, additional, Diniz, Rhodolfo Campos Siqueira, additional, Simão, Juliana Santos, additional, Santos, Daniel Coutinho dos, additional, Souza, Daianne Santos de, additional, Rocha, Antônia Marcela Silva, additional, Sousa, Sara Bernarda Moreira de, additional, Feitosa, Marcela de Oliveira, additional, Campos, Douglas Moraes, additional, Nunes, Sabrina Freitas, additional, Siqueira, Lucas De Carvalho, additional, Santos, Bárbara Thaís Souza Dos, additional, anna, Inaê Lima Machado Vaccari Sant, additional, Corrêa, Sabrina Elora De Almeida, additional, Oliveira, Samilly Sousa De, additional, Almeida, Sandy Siqueira De Alencar, additional, Nascimento, Cidianna Emanuelly Melo Do, additional, Anjos, Hannah Barbosa Lopes dos, additional, Dutra, Carolina Nunes, additional, Rocha, Ana Luisa de Oliveira, additional, Silva, Breno Henrique Colares, additional, Rossati, Luaan Silva, additional, Gomes, Luiza Pedrosa, additional, Bernardes, Maria Eduarda Cunha, additional, Costa, Suellen Cristine, additional, Nunes, Cristiana Buzelin, additional, Saldanha, Janaína Cláudia da Silva, additional, Ferreira, Lívia Bonin, additional, Rocha, Lara Aliprandi, additional, Horsth, Enzo Boecher, additional, Sepúlvida, Cindy Sicylia Damm, additional, Marques, Eduardo Casella, additional, Padilha, Luisa Colnaghi, additional, Souza, Carlos Eduardo Favoretti De, additional, Araújo, Vitória Gabriele Barros de, additional, Costa, Jorgyanne Gonzalez, additional, Silva, Bárbara Leite da, additional, Fonsêca, Alana Meneses Leal, additional, Silva, João Victor Vieira De Brito, additional, Nascimento, Alice Benicio Do, additional, Reis, Maria Clara Gomes Dos, additional, Souza, Ana Paula De Carvalho, additional, Moraes, Ramires dos Santos, additional, Alves, Nágila Silva, additional, Schmitt, Layne Mendonça, additional, Souza, Esther Cardoso Dos Santos, additional, Silva, Carolina Bragança E, additional, Pereira, Iargram Leite, additional, Léon, Lucas Caldas, additional, Sobrinho, Weberton Dorásio, additional, Estrela, Matheus Rodrigues De Araújo, additional, Albuquerque, Ana Carolina Tocantins, additional, Maia, Lucas Lafaerto Felix, additional, Freitas, Gabriel Barcelos De, additional, Nassaralla, Anna Paula Amaral, additional, Costa, Yana Maílla Pamplona, additional, Dutra, Paulo Vitor Carvalho, additional, Daher, Luís Guilherme Rassi Mahamed, additional, Braga, Talita, additional, Pires, Carlos Henrique Nunes, additional, Sousa, Miriam Elayne Macêdo de, additional, Araujo, Milena Thaisa Rodrigues De, additional, Gomes, Laisa Fernanda Dos Anjos, additional, Freitas, Thayanne Sousa De, additional, Moraes, Israele Paz De, additional, Araújo, Débora Virgínia Castelo Branco Sales, additional, Silva, Márcia De Sousa, additional, Silva, Jordeilson Luis Araújo, additional, Teixeira, Natalia Da Silva, additional, Silva, Emylla De Sousa, additional, Araújo, Welber Silva, additional, Niza, Vitória Freitas, additional, Rocha, Carolina Luzia Barcelos, additional, Isaac, Yasmin Bulkool, additional, Pereira, Juliana Tome, additional, Tracz, Rita, additional, Gonçalves, Ana Flávia, additional, Bosca, Luana Lima, additional, Matos, Taisa Caroline Metring De, additional, Marcovicz, Gabriele De Vargas, additional, Pereira, Larissa Rezende Lima, additional, OLIVEIRA, MAYRA LOURES DE, additional, Siqueira, André Luis Ferreira, additional, Paiva, Caique Pereira De, additional, Louzada, Carlos Eduardo Corrêa, additional, Dutra, Débora Ribeiro, additional, Nascimento, Jonas Eduardo Do Prado, additional, Parolis, Júlia Alves De, additional, Silva, Laion Roberto Ferreira Da, additional, Guerra, Lívia Pierazoli De Carvalho, additional, Guerreiro, Manuela Moreira, additional, Ferreira, Maria Mariana Abras, additional, Nogueira, Pedro Henrique Fonseca, additional, Blasi, Sérgio Ítalo, additional, Carvalho, Stefânia Maria Magalhães De, additional, Oliveira, Mayra Loures De, additional, Malta, Agda Louise Cardoso, additional, Ribeiro, Andressa Oliveira, additional, Martins, Emilly Andrade, additional, Vieira, Gabriela Berchiol, additional, Kneip, Izabella De Castro Cabral, additional, Soares, Júlia Pereira, additional, Quintana, Larissa Martins, additional, Albano, Leonardo Galvão, additional, Rodrigues, Letícia Castro De Souza, additional, Lima, Mariane Merched, additional, Souza, Mikaelly Faria De, additional, Barbosa, Rhaimei Izorai Gonçalves, additional, Cerqueira, Yara Martins, additional, Cruz, Mateus Ibiapina Vaz de Sousa, additional, Vieira, Ingrid Raquel Lima, additional, ROCHA, EUKÁLIA PEREIRA, additional, Sousa, Tainan Mourão De, additional, Abreu, Karen Beatriz Oliveira De, additional, Passos, Bruna Victoria da Silva, additional, Correia, Maria Eduarda Pereira, additional, Oliveira, Douglas Vieira de, additional, Leite, Wellington Macêdo, additional, Passos, Bruna Victória Da Silva, additional, VIEIRA, INGRID RAQUEL LIMA, additional, Rocha, Eukália Pereira Da, additional, Oliveira, Douglas Vieira De, additional, LEITE, WELLINGTON MACÊDO, additional, Fé, Roberta Cristina Gomes Franco Moura, additional, Lago, Eliana Campêlo, additional, Ramos, Carmen Viana, additional, Santiago, Antonio de Pádua Gandra, additional, Avelar, Lara Chierici, additional, Rodrigues, Arthur Campos Lima, additional, Pereira, Clara Bersemann Gontijo, additional, Soares, Arthur Mendes de Miranda, additional, Côrtes, Júlia Vieira Ferreira, additional, Lima, Alexya Caroline Delmonte, additional, Ferraresso, Carolina Kobbaz, additional, Viana, Matheus Santos, additional, Rocha, Tales Vilela, additional, Silvério, Alessandra Dos Santos Danzinger, additional, Ferreira, Bruna Mesquita Campos, additional, Castro, Igor Gonçalves, additional, Silva, Julia Carvalho, additional, Diniz, Letícia Dos Santos, additional, Lacerda, Lívia Dos Santos Abreu, additional, Costa, Maria Gabriela, additional, Ávila, Tamíris Silva, additional, Faria, Bruno Damaceno De, additional, Costa, Ana Luísa Mendes Pinheiro, additional, Guimarães, Luísa Prado, additional, Fernandes, Thalita Baptisteli, additional, Apolinário, Joelma Maria dos Santos da Silva, additional, and Ananias, Luana Maria Apolinário, additional

Published
2021
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45. The Contribution of Emotional Intelligence and Spirituality in Understanding Creativity and Entrepreneurial Intention of Higher Education Students

Author

Rodrigues, Ana Paula, Jorge, Filipa Eira, Pires, Carlos André, and António, Patrícia

Abstract

Purpose: The purpose of this paper is to analyse the role of spirituality and emotional intelligence in understanding creativity, attitudes towards entrepreneurship, perceived behavioural control (PBC) and entrepreneurial intention of students of a Portuguese higher education institution. A conceptual model is proposed representing direct and indirect relationships among these constructs. Design/methodology/approach: A quantitative approach was adopted in the form of a survey questionnaire applied to a sample of 345 university students. To test the hypothesised relationships between the constructs, the authors used the path analysis technique. Findings: Results show that personal attitudes towards entrepreneurship and PBC have a positive effect on entrepreneurial intention, and mediate the effect of emotional intelligence on entrepreneurial intention. Emotional intelligence has a direct positive effect on creativity. The results reveal no or a tenuous influence of spirituality in the various concepts studied. Practical implications: It is expected that the model can serve as a support for facilitating and promoting entrepreneurship in higher education environments. It could be of valuable use to furthering our understanding of the role of individual/psychological characteristics, motivational and attitudinal factors in fostering entrepreneurial intention of university students. Originality/value: Some studies suggest that psychological factors play an essential role in developing alternative models to the entrepreneurial process. However, the studies that directly explore how individual differences in emotional intelligence, spirituality and creativity relate to entrepreneurial intention are relatively few.

Published
2019
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47. BIGSEA: A Big Data analytics platform for public transportation information

Author

Alic, Andy S., Almeida, Jussara, Aloisio, Giovanni, Andrade, Nazareno, Antunes, Nuno, Ardagna, Danilo, Badia, Rosa M., Basso, Tania, Blanquer, Ignacio, Braz, Tarciso, Brito, Andrey, Elia, Donatello, Fiore, Sandro, Guedes, Dorgival, Lattuada, Marco, Lezzi, Daniele, Maciel, Matheus, Meira, Wagner, Jr, Mestre, Demetrio, Moraes, Regina, Morais, Fabio, Pires, Carlos Eduardo, Kozievitch, Nádia P., Santos, Walter dos, Silva, Paulo, and Vieira, Marco

Published
2019
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48. Lyapunov statistics and mixing rates for intermittent systems

Author

Pires, Carlos J. A., Saa, Alberto, and Venegeroles, Roberto

Subjects
Condensed Matter - Statistical Mechanics
Abstract

We consider here a recent conjecture stating that correlation functions and tail probabilities of finite time Lyapunov exponents would have the same power law decay in weakly chaotic systems. We demonstrate that this conjecture fails for a generic class of maps of the Pomeau-Manneville type. We show further that, typically, the decay properties of such tail probabilities do not provide significant information on key aspects of weakly chaotic dynamics such as ergodicity and instability regimes. Our approaches are firmly based on rigorous results, particularly the Aaronson-Darling-Kac theorem, and are also confirmed by exhaustive numerical simulations., Comment: 7 pages, 5 figures, to appear in PRE

Published
2011
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49. Enhancing Water Management: A Comparative Analysis of Time Series Prediction Models for Distributed Water Flow in Supply Networks.

Author

Pires, Carlos and Martins, Mónica V.

Subjects
TIME series analysis, WATER management, PREDICTION models, WATER supply, WATER shortages, BOX-Jenkins forecasting, WATER demand management, FORECASTING, MICROGRIDS
Abstract

Water scarcity poses a significant challenge to social integration and economic development, necessitating efficient water management strategies. This study compares time series forecasting models, both classical, Holt–Winters and ARIMA, and modern, LSTM and Prophet, to determine the most accurate model for predicting water flow in public supply networks. Data from four rural Portuguese locations were used, with preprocessing ensuring quality and uniformity. Performance metrics were evaluated for both medium-term (10 days) and long-term (3 months) forecasts. Results indicate that classical models like Holt–Winters and ARIMA perform better for medium-term predictions, while modern models, particularly LSTM, excel in long-term forecasts by effectively capturing seasonal patterns. Future research should integrate additional variables and explore hybrid models to enhance forecasting accuracy. [ABSTRACT FROM AUTHOR]

Published
2024
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