Lior Rokach

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Lior Rokach is an author.


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Title Keyword(s) Published in Language DateThis property is a special property in this wiki. Abstract R C
Wikipedia-based query performance prediction Query-performance prediction
SIGIR 2014 - Proceedings of the 37th International ACM SIGIR Conference on Research and Development in Information Retrieval English 2014 The query-performance prediction task is to estimate retrieval effectiveness with no relevance judgments. Pre-retrieval prediction methods operate prior to retrieval time. Hence, these predictors are often based on analyzing the query and the corpus upon which retrieval is performed. We propose a corpus-independent approach to preretrieval prediction which relies on information extracted from Wikipedia. Specifically, we present Wikipedia-based features that can attest to the effectiveness of retrieval performed in response to a query regardless of the corpus upon which search is performed. Empirical evaluation demonstrates the merits of our approach. As a case in point, integrating the Wikipedia- based features with state-of-the-art pre-retrieval predictors that analyze the corpus yields prediction quality that is consistently better than that of using the latter alone. Copyright 2014 ACM. 0 0
Using Wikipedia to boost collaborative filtering techniques Wikipedia
Cold start problem
Collaborative filtering
Recommender system
RecSys English 2011 0 0