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ECIR
2006
Springer

Efficient Phrase Querying with Common Phrase Index

9 years 5 months ago
Efficient Phrase Querying with Common Phrase Index
Abstract. In this paper, we propose a common phrase index as an efficient index structure to support phrase queries in a very large text database. Our structure is an extension of previous index structures for phrases and achieves better query efficiency with negligible extra storage cost. In our experimental evaluation, a common phrase index has 5% and 20% improvement in query time for the overall and large queries (queries of long phrases) respectively over an auxiliary nextword index. Moreover, it uses only 1% extra storage cost. Compared with an inverted index, our improvement is 40% and 72% for the overall and large queries respectively.
Matthew Chang, Chung Keung Poon
Added 30 Oct 2010
Updated 30 Oct 2010
Type Conference
Year 2006
Where ECIR
Authors Matthew Chang, Chung Keung Poon
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