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- W2163647195 abstract "Many existing information retrieval models do not explicitly take into account information about word associations. Our approach makes use of rst and second order relationships found in natural language, known as syntagmatic and paradigmatic associations, respectively. This is achieved by using a formal model of word meaning within the query expansion process. On ad hoc retrieval, our approach achieves statistically signicant improvements in MAP (0.158) and P@20 (0.396) over our baseline model. The ERR@20 and nDCG@20 of our system was 0.249 and 0.192 respectively. Our results and discussion suggest that information about both syntagamtic and paradigmatic associations can assist with improving retrieval eectiveness on ad hoc retrieval." @default.
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- W2163647195 date "2012-11-01" @default.
- W2163647195 modified "2023-10-07" @default.
- W2163647195 title "QUT Para at TREC 2012 Web Track: Word Associations for Retrieving Web Documents" @default.
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