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Seminar abstract

What are Classifier Ensembles Good for Anyway and How Would You Know?

Lawrence O. Hall
University of South Florida

Abstract : Ensembles of classifiers can result in an overall classifier with more predictive accuracy than a single classifier. However, they are more costly to create. In this talk we will argue that an ensemble can be useful in building a model of very large data sets even if members of the ensemble are trained on only a non-stratified portion of the data. Several examples will be given. Further, a 57 data set statistical comparison of some rapid, and not so rapid, ensemble classifier construction approaches will be discussed to examine where a classifier ensemble is beneficial and what type may be most likely to provide the highest accuracy.

Bio: Lawrence O. Hall is Professor and Chair of Computer Science and Engineering at University of South Florida. He received his Ph.D. in Computer Science from the Florida State University in 1986 and a B.S. in Applied Mathematics from the Florida Institute of Technology in 1980. He is a fellow of the IEEE and the IAPR. His research interests lie in distributed machine learning, extreme data mining, pattern recognition and integrating AI into image processing. The exploitation of imprecision with the use of fuzzy logic in pattern recognition, AI and learning is a research theme. He has authored or co-authored over 65 publications in journals, as well as many conference papers and book chapters. Some recent publications appear in IEEE Transactions on Pattern Analysis and Machine Intelligence, Neural Computation, Pattern Recognition Letters, Journal of Machine Learning research, IEEE Transactions on Systems, Man, and Cybernetics, IEEE Transactions on Evolutionary Computing, the International Conference on Data Mining, the Multiple Classier Systems Workshop, and the NAFIPS conference.

He received the IEEE SMC Society Outstanding contribution award in 2000 and 2008. He received an Outstanding Research achievement award from the Univ. of South Florida in 2004. He is a past president of NAFIPS. Larry is the former vice president for membership of the SMC society. He was the President of the IEEE Systems, Man and Cybernetics society for 2006-7. He was the Editor-In-Chief of the IEEE Transactions on Systems, Man and Cybernetics, Part B, 2002-05. He was the Vice President for Publications for the IEEE Biometrics Council 2008-10. Also, associate editor for IEEE Transactions on Fuzzy Systems, International Journal of Intelligent Data Analysis, International Journal of Pattern Recognition and Artificial Intelligence and International Journal of Approximate Reasoning.

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