PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

Learning Preferences with Hidden Common Cause Relations
Kristian Kersting and Zhao Xu
In: The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD 09), 7-11 Sept 2009, Bled, Slovenia.

Abstract

Gaussian processes have successfully been used to learn preferences among entities as they provide nonparametric Bayesian approaches for model selection and probabilistic inference. For many entities encountered in real-world applications, however, there are complex relations between them. In this paper, we present a preference model which incorporates information on relations among entities. Specifically, we propose a probabilistic relational kernel model for preference learning based on Silva et al.’s mixed graph Gaussian processes: a new prior distribution, enhanced with relational graph kernels, is proposed to capture the correlations between preferences. Empirical analysis on the LETOR datasets demonstrates that relational information can improve the performance of preference learning.

EPrint Type:Conference or Workshop Item (Paper)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Learning/Statistics & Optimisation
Information Retrieval & Textual Information Access
ID Code:6559
Deposited By:Zhao Xu
Deposited On:08 March 2010