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Your search keyword '"Baptista, Cláudio"' showing total 278 results
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278 results on '"Baptista, Cláudio"'

1. A Hate Speech Detection Approach Using Transfer Learning with Multiple Idioms

Author

de Oliveira, Aillkeen Bezerra, de Souza Baptista, Cláudio, Firmino, Anderson Almeida, de Paiva, Anselmo Cardoso, van der Aalst, Wil, Series Editor, Ram, Sudha, Series Editor, Rosemann, Michael, Series Editor, Szyperski, Clemens, Series Editor, Guizzardi, Giancarlo, Series Editor, Filipe, Joaquim, editor, Śmiałek, Michał, editor, Brodsky, Alexander, editor, and Hammoudi, Slimane, editor

Published
2024
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2. Using Machine Learning and NLP for the Product Matching Problem

Author

de Santana, Matheus Alcantara, de Souza Baptista, Cláudio, Alves, André Luiz Firmino, Firmino, Anderson Almeida, da Silva Januário, Gerson, da Silva Caldera, Roney Wellington, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Nagar, Atulya K., editor, Singh Jat, Dharm, editor, Mishra, Durgesh Kumar, editor, and Joshi, Amit, editor

Published
2023
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6. Using Opinion Mining in Student Assessments to Improve Teaching Quality in Universities

Author

de Oliveira, Aillkeen Bezerra, Alves, André Luiz F., de Souza Baptista, Cláudio, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Abraham, Ajith, editor, Siarry, Patrick, editor, Ma, Kun, editor, and Kaklauskas, Arturas, editor

Published
2021
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7. Using Machine Learning for Risk Classification in Brazilian Federal Voluntary Transfers

Author

Guilhon, Daniel M., de Oliveira, Aillkeen Bezerra, Gomes, Daniel L., Jr, Paiva, Anselmo C., de Souza Baptista, Cláudio, Junior, Geraldo Braz, de Almeida, João Dallysson Sousa, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Kö, Andrea, editor, Francesconi, Enrico, editor, Kotsis, Gabriele, editor, Tjoa, A Min, editor, and Khalil, Ismail, editor

Published
2021
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8. Using Cross Lingual Learning for Detecting Hate Speech in Portuguese

Author

Firmino, Anderson Almeida, de Baptista, Cláudio Souza, de Paiva, Anselmo Cardoso, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Strauss, Christine, editor, Kotsis, Gabriele, editor, Tjoa, A Min, editor, and Khalil, Ismail, editor

Published
2021
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10. Mobile Application for Crowdmapping Accessibility Places and Generation of Accessible Routes

Author

da Silva Lima, Nigel, Leite, João Pedro Caldas, de Paiva, Anselmo Cardoso, Maia, Ivana Marcia Oliveira, Silva, Aristófanes Corrêa, Junior, Geraldo Braz, de Souza Baptista, Cláudio, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Ahram, Tareq Z., editor, and Falcão, Christianne, editor

Published
2019
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11. Crowdsourcing Urban Issues in Smart Cities: A Usability Assessment of the Crowd4City System

Author

Falcão, Ana Gabrielle Ramos, Wanderley, Pedro Farias, da Silva Leite, Tiago Henrique, de Souza Baptista, Cláudio, de Queiroz, José Eustáquio Rangel, de Oliveira, Maxwell Guimarães, Rocha, Júlio Henrique, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Kő, Andrea, editor, Francesconi, Enrico, editor, Anderst-Kotsis, Gabriele, editor, Tjoa, A Min, editor, and Khalil, Ismail, editor

Published
2019
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13. Extracting Geospatial Preferences Using Relational Neighbors

Author

Marinho, Leandro Balby, Baptista, Cláudio de Souza, Sandholm, Thomas, Nunes, Iury, Nóbrega, Caio, and Araújo, Jordão

Subjects
Computer Science - Information Retrieval
Abstract

With the increasing popularity of location-based social media applications and devices that automatically tag generated content with locations, large repositories of collaborative geo-referenced data are appearing on-line. Efficiently extracting user preferences from these data to determine what information to recommend is challenging because of the sheer volume of data as well as the frequency of updates. Traditional recommender systems focus on the interplay between users and items, but ignore contextual parameters such as location. In this paper we take a geospatial approach to determine locational preferences and similarities between users. We propose to capture the geographic context of user preferences for items using a relational graph, through which we are able to derive many new and state-of-the-art recommendation algorithms, including combinations of them, requiring changes only in the definition of the edge weights. Furthermore, we discuss several solutions for cold-start scenarios. Finally, we conduct experiments using two real-world datasets and provide empirical evidence that many of the proposed algorithms outperform existing location-aware recommender algorithms.

Published
2012

20. Leveraging VGI for Gazetteer Enrichment: A Case Study for Geoparsing Twitter Messages

Author

de Oliveira, Maxwell Guimarães, Campelo, Cláudio E. C., de Souza Baptista, Cláudio, Bertolotto, Michela, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Gensel, Jérôme, editor, and Tomko, Martin, editor

Published
2015
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23. Temporal Analysis of Sentiment in Tweets: A Case Study with FIFA Confederations Cup in Brazil

Author

Alves, André Luiz Firmino, Baptista, Cláudio de Souza, Firmino, Anderson Almeida, de Oliveira, Maxwell Guimarães, de Figueirêdo, Hugo Feitosa, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Decker, Hendrik, editor, Lhotská, Lenka, editor, Link, Sebastian, editor, Spies, Marcus, editor, and Wagner, Roland R., editor

Published
2014
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27. Photo annotation: a survey

Author

de Andrade, Davi Oliveira Serrano, Maia, Luis Fernando, de Figueirêdo, Hugo Feitosa, Viana, Windson, Trinta, Fernando, and de Souza Baptista, Cláudio

Published
2016
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30. A Model for Geographic Knowledge Extraction on Web Documents

Author

Campelo, Cláudio Elizio Calazans, de Souza Baptista, Cláudio, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Heuser, Carlos Alberto, editor, and Pernul, Günther, editor

Published
2009
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32. A Machine Learning Approach for Classifying Road Accident Hotspots.

Author

Amorim, Brunna de Sousa Pereira, Firmino, Anderson Almeida, Baptista, Cláudio de Souza, Júnior, Geraldo Braz, Paiva, Anselmo Cardoso de, and Júnior, Francisco Edeverton de Almeida

Subjects
MACHINE learning, TRAFFIC accidents, RANDOM forest algorithms, SUPERVISED learning, FEATURE selection, WEATHER
Abstract

Road accidents are a worldwide problem, affecting millions of people annually. One way to reduce such accidents is to predict risk areas and alert drivers. Advanced research has been carried out on identifying accident-influencing factors and potential highway risk areas to mitigate the number of road accidents. Machine learning techniques have been used to build prediction models using a supervised classification based on a labeled dataset. In this work, we experimented with many machine learning algorithms to discover the best classifier for the Brazilian federal road hotspots associated with severe or nonsevere accident risk using several features. We tested with SVM, random forest, and a multi-layer perceptron neural network. The dataset contains a ten-year road accident report by the Brazilian Federal Highway Police. The feature set includes spatial footprint, weekday and time when the accident happened, road type, route, orientation, weather conditions, and accident type. The results were promising, and the neural network model provided the best results, achieving an accuracy of 83%, a precision of 84%, a recall of 83%, and an F1-score of 82%. [ABSTRACT FROM AUTHOR]

Published
2023
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33. A Progressive Transmission Scheme for Vector Maps in Low-Bandwidth Environments Based on Device Rendering

Author

Costa, David Cavassana, de Paiva, Anselmo Cardoso, Teixeira, Mario Meireles, de Souza Baptista, Cláudio, da Silva, Elvis Rodrigues, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Roddick, John F., editor, Benjamins, V. Richard, editor, Si-said Cherfi, Samira, editor, Chiang, Roger, editor, Claramunt, Christophe, editor, Elmasri, Ramez A., editor, Grandi, Fabio, editor, Han, Hyoil, editor, Hepp, Martin, editor, Lytras, Miltiadis D., editor, Mišić, Vojislav B., editor, Poels, Geert, editor, Song, Il-Yeol, editor, Trujillo, Juan, editor, and Vangenot, Christelle, editor

Published
2006
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35. Using Open Source GIS in e-Government Applications

Author

de Souza Baptista, Cláudio, Leite, Fábio Luiz, Jr., Rodrigues da Silva, Elvis, Paiva, Anselmo C., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Traunmüller, Roland, editor

Published
2004
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37. WebObjects: A New Approach for Querying the Web

Author

Silva, Fábio Soares, Sampaio, Marcus Costa, Baptista, Cláudio S., Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Mařík, Vladimír, editor, Retschitzegger, Werner, editor, and Štěpánková, Olga, editor

Published
2003
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38. Database Integration Using Mobile Agents

Author

Medcraft, Philip S., Schiel, Ulrich, Baptista, Cláudio S., Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Klusch, Matthias, editor, Omicini, Andrea, editor, Ossowski, Sascha, editor, and Laamanen, Heimo, editor

Published
2003
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43. NoSQL Geographic Databases

Author

Baptista, Cláudio, primary, Pires, Carlos, additional, Leite, Daniel, additional, de Oliveira, Maxwell, additional, and Junior, Odilon, additional

Published
2014
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