Publication Type

Conference Proceeding Article

Version

publishedVersion

Publication Date

4-2011

Abstract

Adaptation techniques based on importance weighting were shown effective for RankSVM and RankNet, viz., each training instance is assigned a target weight denoting its importance to the target domain and incorporated into loss functions. In this work, we extend RankBoost using importance weighting framework for ranking adaptation. We find it non-trivial to incorporate the target weight into the boosting-based ranking algorithms because it plays a contradictory role against the innate weight of boosting, namely source weight that focuses on adjusting source-domain ranking accuracy. Our experiments show that among three variants, the additive weight-based RankBoost, which dynamically balances the two types of weights, significantly and consistently outperforms the baseline trained directly on the source domain.

Discipline

Databases and Information Systems

Research Areas

Data Science and Engineering

Publication

Proceedings of the 33rd European Conference on Information Retrieval (ECIR 2011)

First Page

562

Last Page

567

Identifier

10.1007/978-3-642-20161-5_56

Publisher

LNCS, Springer

City or Country

Dublin, Ireland

Additional URL

https://doi.org/10.1007/978-3-642-20161-5_56

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