Document (#38062)

Author
Chowdhury, A.
Mccabe, M.C.
Title
Improving information retrieval systems using part of speech tagging
Source
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.39.5178
Year
1993
Abstract
The object of Information Retrieval is to retrieve all relevant documents for a user query and only those relevant documents. Much research has focused on achieving this objective with little regard for storage overhead or performance. In the paper we evaluate the use of Part of Speech Tagging to improve, the index storage overhead and general speed of the system with only a minimal reduction to precision recall measurements. We tagged 500Mbs of the Los Angeles Times 1990 and 1989 document collection provided by TREC for parts of speech. We then experimented to find the most relevant part of speech to index. We show that 90% of precision recall is achieved with 40% of the document collections terms. We also show that this is a improvement in overhead with only a 1% reduction in precision recall.
Theme
Computerlinguistik
Object
POS-Tagging

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