Inproceedings,

Learning to select a time-aware retrieval model

, , and .
Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval, page 1099--1100. New York, NY, USA, ACM, (2012)
DOI: 10.1145/2348283.2348488

Abstract

Time-aware retrieval models exploit one of two time dimensions, namely, (a) <i>publication time</i> or (b) <i>content time</i> (temporal expressions mentioned in documents). We show that the effectiveness for a <i>temporal query</i> (e.g., illinois earthquake 1968) depends significantly on which time dimension is factored into ranking results. Motivated by this, we propose a machine learning approach to select the most suitable time-aware retrieval model for a given temporal query. Our method uses three classes of features obtained from analyzing distributions over two time dimensions, a distribution over terms, and retrieval scores within top-<i>k</i> result documents. Experiments on real-world data with crowdsourced relevance assessments show the potential of our approach.

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