Publications

Publications by João Gama

2012

Editorial message: Special track on data streams

Authors
Rodrigues, PP; Bifet, A; Krishnaswamy, S; Gama, J;

Publication
Proceedings of the ACM Symposium on Applied Computing

Abstract

2011

Speeding up hoeffding-based regression trees with options

Authors
Ikonomovska, E; Gama, J; Zenko, B; Dzeroski, S;

Publication
Proceedings of the 28th International Conference on Machine Learning, ICML 2011

Abstract
Data streams are ubiquitous and have in the last two decades become an important research topic. For their predictive non-parametric analysis, Hoeffding-based trees are often a method of choice, offering a possibility of any-time predictions. However, one of their main problems is the delay in learning progress due to the existence of equally discriminative attributes. Options are a natural way to deal with this problem. Option trees build upon regular trees by adding splitting options in the internal nodes. As such they are known to improve accuracy, stability and reduce ambiguity. In this paper, we present on-line option trees for faster learning on numerical data streams. Our results show that options improve the any-time performance of ordinary on-line regression trees, while preserving the interpretable structure of trees and without significantly increasing the computational complexity of the algorithm. Copyright 2011 by the author(s)/owner(s).

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2010

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Authors
Vatsavai, RR; Omitaomu, OA; Gama, J; Chawla, NV; Gaber, MM; Ganguly, AR;

Publication
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abstract

2004

Incremental learning and concept drift: Editor's introduction

Authors
Kubat, M; Gama, J; Utgoff, P;

Publication
Intelligent Data Analysis

Abstract

2009

Special track on data streams

Authors
Gama, J; Carvalho, A; Rodrigues, PP; Aguilar, J;

Publication
Proceedings of the ACM Symposium on Applied Computing

Abstract

2009

Advanced Data Mining and Applications: 5th International Conference, ADMA 2009 Beijing, China, August 17-19, 2009 Proceedings - Preface

Authors
Qiang, Y; Ronghuai, H; Jian, P; Gama, J; Xiaofeng, M;

Publication
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abstract