Journal Articles
2019(1 publication)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Boosting Dynamic Ensemble’s Performance in Twitter", Neural Computing and Applications, 2019

2017(1 publication)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Adaptive Learning for Dynamic Environments: a Comparative Approach ", Engineering Applications of Artificial Intelligence, Elsevier ,  pp. 336-345, 2017

2013(1 publication)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Customized Crowds and Active Learning to Improve Classification", Expert Systems With Applications, Elsevier,  vol. 40,  pp. 7212-7219, 2013
[citation][year=2016]Ivens Portugal, Paulo Alencar, Donald Cowan, Requirements Engineering for General Recommender Systems, Cornell University Library, arXiv:1511.05262.
[citation][year=2015]Mokter Hossain, Crowdsourcing in business and management disciplines: an integrative literature review, Journal of Global Entrepreneurship Research, 5(21), 2015.
[citation][year=2015]WANG You-wei,LIU Yuan-ning, FENG Li-zhou, ZHU Xiao-dong, A Novel Quick Online Spam Identification Method Based on User Interest Set, Acta Eletronica Sinica 43(10), 2015.

Conference Articles
2019(3 publications)
[publication]Costa, J. and Silva, C. and Ribeiro, B. , "Hierarchical Deep Learning Approach for Plant Disease Detection", in 9th Iberian Conference on Pattern Recognition and Image Analysis, 2019

[publication]Phong, N.H. and Costa, J. and Ribeiro, B. , "An Improvement for Capsule Networks using Depthwise Separable Convolution", in 9th Iberian Conference on Pattern Recognition and Image Analysis, 2019

[publication]Costa, J. and Utreras, S. and Welling, T. and Silva, C. , "Deep Learning Approaches for Sentiment Analysis in Instagram Images", in RECPAD 2019 - Portuguese Conference on Pattern Recognition, 2019

2018(7 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Adaptive Learning Models Evaluation in Twitter's Timelines", in International Joint Conference on Neural Networks, 2018

[publication]Guevara, J. and Costa, J. and Arroba, J. and Silva, C. , "Harvesting Opinions in Twitter for Sentiment Analysis", in 13th Iberian Conference on Information Systems and Technologies (CISTI), 2018

[publication]Guevara, J. and Morales, M. and Costa, J. and Silva, C. , "Comparing Learning Approaches for Twitter Sentiment Analysis", in 24th edition of the Portuguese Conference on Pattern Recognition (RecPad), 2018

[publication]Costa, J. and Silva, C. and Ribeiro, B. , "Twitter message: is bigger the better for classification purposes?", in 24th edition of the Portuguese Conference on Pattern Recognition (RecPad), 2018

[publication]Costa, J. and Silva, C. and Ribeiro, B. , "Learning in Twitter streams with 280 character tweets", in 10th International Conference on Soft Computing and Pattern Recognition (SoCPaR 2018), 2018

[publication]Oliveira, N. and Costa, J. and Silva, C. and Ribeiro, B. , "Retweet Predictive Model for Predicting the Popularity of Tweets", in 10th International Conference on Soft Computing and Pattern Recognition (SoCPaR 2018), 2018

[publication]Silva, C. and Ribeiro, B. and Costa, J. and Oliveira, N. , "Retweet Predictive Model for Predicting the Popularity of Tweets", in 10th International Conference on Soft Computing and Pattern Recognition (SoCPaR 2018), 2018

2017(2 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Performance Metrics for Model Fusion in Twitter Data Drifts", in IbPRIA 2017: 8th Iberian Conference on Pattern Recognition and Image Analysis, LNCS, Springer, 2017

[publication]Oliveira, N. and Costa, J. and Silva, C. and Ribeiro, B. , "On the importance of Users' Features in Retweeting", in 23rd Portuguese Conference on Pattern Recognition - RECPAD 2017, 2017

2016(2 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Choice of Best Samples for Building Ensembles in Dynamic Environments", in 17th International Conference on Engineering Applications of Neural Networks (EANN), 2016

[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Twitter classification: are some examples better than others?", in 22nd Portuguese Conference on Pattern Recognition, 2016

2015(4 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "The Impact of Longstanding Messages in Micro-Blogging Classification", in IEEE International Joint Conference on Neural Networks (IJCNN'15), 2015

[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "DOTS: Drift Oriented Tool System", in 22nd International Conference on Neural Information Processing (ICONIP2015), 2015

[publication]Silva, C. and Antunes, M. and Costa, J. and Ribeiro, B. , "Active Manifold Learning with Twitter Big Data", in 2015 INNS BigData International Conference, Procedia Computer Science , vol. 53, pp. 208-215, 2015

[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Generating datasets with drift", in 21th edition of the Portuguese Conference on Pattern Recognition (RecPad), 2015

2014(2 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Concept Drift Awareness in Twitter Streams", in IEEE International Conference on Machine Learning and Applications, 2014

[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Learning with Drift in Twitter", in Portuguese Conference on Pattern Recognition, 2014

2013(2 publications)
[publication]Costa, J. and Silva, C. and Antunes, M. and Ribeiro, B. , "Defining Semantic Meta-Hashtags for Twitter Classification", in M. Tomassini et al. (Eds.): ICANNGA 2013, LNCS 7824, pp. 226--235. Springer, Heidelberg (2013), 2013
[citation][year=2015]Thierry Declerck, Piroska Lendva, Processing and Normalizing Hashtags, Proceedings of Recent Advances in Natural Language Processing, pages 104–109, 2015.
[citation][year=2014]Guillaume Tisserant, Mathieu Roche, Violaine Prince, Mining Tweet Data - Statistic and Semantic Information for Political Tweet Classification, KDIR2014-International Conference on Knowledge Discovery and Information Retrieval, 2014.

[publication]Costa, J. and Silva, C. and Ribeiro, B. and Antunes, M. , "CrowdTargeting: Making Crowds More Personal", in Semantic and Social Media Adaptation and Personalization (SMAP), 2013 8th International Workshop on, 2013

2011(3 publications)
[publication]Costa, J. and Silva, C. and Ribeiro, B. , "On Using Crowdsourcing and Active Learning to Improve Classification Performance", in Proceedings of 11th International Conference on Intelligent Systems Design and Applications (ISDA 2011), IEEE; pp. 469-474; November, Cordoba, Spain (DOI:10.1109/ISDA.2011.6121700), 2011
[citation][year=2015]Yudian Zheng, Jiannan Wang, Guoliang Li, Reynold Cheng, Jianhua Feng, QASCA: A Quality-Aware Task Assignment System for Crowdsourcing Applications, SIGMOD '15 Proceedings of the 2015 ACM SIGMOD International Conference on Management of Data
Pages 1031-1046, 2015.
[citation][year=2015]Seid Muhie Yimam, Narrowing the Loop: Integration of Resources and Linguistic Dataset Development with Interactive Machine Learning, Proceedings of NAACL-HLT 2015 Student Research Workshop (SRW), pages 88–95, 2015.
[citation][year=2015]Matteo Venanzi, Oliver Parson, Alex Rogers, Nick Jennings, The ActiveCrowdToolkit: An Open-Source Tool for Benchmarking Active Learning Algorithms for Crowdsourcing Research, Third AAAI Conference on Human Computation and Crowdsourcing, 2015.
[citation][year=2014]Lin, C. C., Huang, Y. C., & Hsu, J. Y. J. (2014, May). Crowdsourced Explanations for Humorous Internet Memes Based on Linguistic Theories. In Second AAAI Conference on Human Computation and Crowdsourcing.
[citation][year=2013]Chaisiri, S. (2013, December). Utilizing Human Intelligence in a Crowdsourcing Marketplace for Big Data Processing. In Parallel and Distributed Systems (ICPADS), 2013 International Conference on (pp. 633-638). IEEE.
[citation][year=2013]Agarwal, A., Garg, R., & Chaudhury, S. (2013, August). Greedy Search for Active Learning of OCR. In Document Analysis and Recognition (ICDAR), 2013 12th International Conference on (pp. 837-841). IEEE.

[publication]Costa, J. and Silva, C. and Ribeiro, B. , "Get Your Jokes Right: Ask The Crowd", in  Proceedings of 1st International Conference on Model and Data Engineering (MEDI 2011),  Lecture Notes Computer Science; Vol. 6918, pp. 178-185, Springer, September, Óbidos, Portugal  (DOI:10.1007/978-3-642-24443-8_20), 2011

[publication]Costa, J. and Silva, C. and Ribeiro, B. , "The Importance of Precision in humour Classification", in "; Proceedings of 12th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2011),Lecture Notes Computer Science, Vol. 6936, pp.271-278, Springer, September, Norwich, UK (10.1007/978-3-642-23878-9_33), 2011

PhD Theses
2018(1 publication)
[publication]Costa, J. , "Information Extraction from Crowds in Dynamic Environments", 2018