Privileged Information for Data Clustering

Information Sciences, Volume 194, Pages 4–23, July 2012

25 Pages Posted: 18 Aug 2016

See all articles by Jan Feyereisl

Jan Feyereisl

University of Nottingham - School of Computer Science

Uwe Aickelin

University of Melbourne - School of Computing and Information Systems

Date Written: January 1, 2012

Abstract

Many machine learning algorithms assume that all input samples are independently and identically distributed from some common distribution on either the input space X, in the case of unsupervised learning, or the input and output space X × Y in the case of supervised and semi-supervised learning. In the last number of years the relaxation of this assumption has been explored and the importance of incorporation of additional information within machine learning algorithms became more apparent. Traditionally such fusion of information was the domain of semi-supervised learning. More recently the inclusion of knowledge from separate hypothetical spaces has been proposed by Vapnik as part of the supervised setting. In this work we are interested in exploring Vapnik’s idea of ‘master-class’ learning and the associated learning using ‘privileged’ information, however within the unsupervised setting.

Adoption of the advanced supervised learning paradigm for the unsupervised setting instigates investigation into the difference between privileged and technical data. By means of our proposed aRi-MAX method stability of the K-Means algorithm is improved and identification of the best clustering solution is achieved on an artificial dataset. Subsequently an information theoretic dot product based algorithm called P-Dot is proposed. This method has the ability to utilize a wide variety of clustering techniques, individually or in combination, while fusing privileged and technical data for improved clustering. Application of the P-Dot method to the task of digit recognition confirms our findings in a real-world scenario.

Keywords: Clustering, Privileged Information, Hidden Information, Master-Class Learning, Machine Learning

Suggested Citation

Feyereisl, Jan and Aickelin, Uwe, Privileged Information for Data Clustering (January 1, 2012). Information Sciences, Volume 194, Pages 4–23, July 2012, Available at SSRN: https://ssrn.com/abstract=2823290 or http://dx.doi.org/10.2139/ssrn.2823290

Jan Feyereisl

University of Nottingham - School of Computer Science ( email )

Jubilee Campus
Wollaton Road
Nottingham, NG8 1BB
United Kingdom

Uwe Aickelin (Contact Author)

University of Melbourne - School of Computing and Information Systems ( email )

Australia

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