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SIGIR
2002
ACM
15 years 1 months ago
Using part-of-speech patterns to reduce query ambiguity
Query ambiguity is a generally recognized problem, particularly in Web environments where queries are commonly only one or two words in length. In this study, we explore one techn...
James Allan, Hema Raghavan
107
Voted
CLEF
2004
Springer
15 years 7 months ago
IR-n r2: Using Normalized Passages
This paper describes the fourth participation of IR-n system (Alicante University) at CLEF conferences. At present conference, we have modified the similarity measure and the que...
Fernando Llopis, Rafael Muñoz, Rafael M. Te...
ICDT
2010
ACM
194views Database» more  ICDT 2010»
15 years 4 months ago
Bag Equivalence of XPath Queries
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
Sara Cohen, Yaacov Y. Weiss
WWW
2007
ACM
16 years 2 months ago
Exploration of query context for information retrieval
A number of existing information retrieval systems propose the notion of query context to combine the knowledge of query and user into retrieval to reveal the most exact descripti...
Keke Cai, Chun Chen, Jiajun Bu, Peng Huang, Zhimin...
APPROX
2005
Springer
90views Algorithms» more  APPROX 2005»
15 years 7 months ago
Tight Bounds for String Reconstruction Using Substring Queries
We resolve two open problems presented in [8]. First, we consider the problem of reconstructing an unknown string T over a fixed alphabet using queries of the form “does the st...
Dekel Tsur