A Quantitative Evaluation of Query Expansion in Domain Specific Information Retrieval
نویسنده
چکیده
This paper describes our different retrieval approaches conducted on a cultural heritage (CH) content testcollection. In our study, our main objective is to measure the relative merit of various query expansion and semantic enrichment techniques. To do so we considered different strategies based on blind-query expansion as well as using external resource, namely Wikipedia. In using external knowledge bases we consider different strategies in order to select the most appropriate concepts to be added to the initial query. Our results show that expansion with both pseudo-relevant documents and external resources improve the retrieval. While the impact of expansion using an external resource is more significant.
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