Guests 2023

João Gama 

Full Professor

Laboratory of Artificial Intelligence and Decision Support,
and Faculty of Economics,
University of Porto
Porto, Portugal




João Gama is a Full Professor at the School of Economics, University of Porto, Portugal. He received his Ph.D. in Computer Science from the University of Porto in 2000. He is EurIA Fellow, IEEE Fellow, and Fellow of the Asia-Pacific AI Association. He is member of the board of directors of the LIAAD, a group belonging to INESC Tec. He is the Editor-in-Chief of the International Journal of Data Science and Analytics, published by Springer.



Title: Recent Advances in Learning from data Streams
Abstract: Learning from data streams is a hot topic in machine learning and data mining. In this talk, we present two different problems and discuss streaming techniques to solve them. The first problem is the application of data stream techniques to predictive maintenance. We propose a two layer neuro-symbolic approach to explain black-box models. The explanations are oriented toward equipment failures, that are rare events. For the second problem, we present a streaming algorithm for online hyper-parameter tuning. The Self hyper-Parameter Tunning (SPT) algorithm is an optimization algorithm for online hyper-parameter tuning from non-stationary data streams. SPT works as a wrapper over any streaming algorithm and can be used for classification, regression, and recommendation.


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