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» The Constellation Query Language
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SIGIR
2002
ACM
13 years 7 months ago
Predicting query performance
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...
Stephen Cronen-Townsend, Yun Zhou, W. Bruce Croft
KDD
2002
ACM
150views Data Mining» more  KDD 2002»
14 years 8 months ago
Querying multiple sets of discovered rules
Rule mining is an important data mining task that has been applied to numerous real-world applications. Often a rule mining system generates a large number of rules and only a sma...
Alexander Tuzhilin, Bing Liu
WWW
2007
ACM
14 years 8 months ago
Identifying ambiguous queries in web search
It is widely believed that some queries submitted to search engines are by nature ambiguous (e.g., java, apple). However, few studies have investigated the questions of "how ...
Ruihua Song, Zhenxiao Luo, Ji-Rong Wen, Yong Yu, H...
ICEIS
2006
IEEE
14 years 1 months ago
Filtering Unsatisfiable XPATH Queries
The satisfiability test checks, whether or not the evaluation of a query returns the empty set for any input document, and can be used in query optimization for avoiding the submis...
Jinghua Groppe, Sven Groppe
DS
1997
97views Database» more  DS 1997»
13 years 9 months ago
A Formalization of ODMG Queries
The ODMG proposal has helped to focus the work on object-oriented databases (OODBs) onto a common object model and query language. Nevertheless there are several shortcomings of t...
Holger Riedel, Marc H. Scholl