Retrieval experiments using pseudo-desktop collections

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Retrieval experiments using pseudo-desktop collections
Desktop search is an important part of personal information management (PIM). However, research in this area has been limited by the lack of shareable test collections, making cumulative progress difficult. In this paper, we define desktop search as a semi-structured document retrieval problem and introduce a methodology to automatically build a reusable collection (the pseudo-desktop) that has many of the same properties as a real desktop collection. We then present a comprehensive evaluation of retrieval methods for semi-structured document retrieval on several pseudo-desktop collections and the TREC Enterprise collection. Our results show that a probabilistic retrieval model using the mapping relation between a query term and a document field (PRM-S) has the best performance in collections with more structure, such as email, and that the query-likelihood language model is better for other document types. We further analyze the observed differences using generated queries and sugges...
Jinyoung Kim, W. Bruce Croft
Added 08 Nov 2010
Updated 08 Nov 2010
Type Conference
Year 2009
Where CIKM
Authors Jinyoung Kim, W. Bruce Croft
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