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» A study of query length
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ACL
2009
13 years 6 months ago
The Impact of Query Refinement in the Web People Search Task
Searching for a person name in a Web Search Engine usually leads to a number of web pages that refer to several people sharing the same name. In this paper we study whether it is ...
Javier Artiles, Julio Gonzalo, Enrique Amigó...
MST
2010
117views more  MST 2010»
13 years 2 months ago
The 1-Versus-2 Queries Problem Revisited
The 1-versus-2 queries problem, which has been extensively studied in computational complexity theory, asks in its generality whether every efficient algorithm that makes at most 2...
Rahul Tripathi
PVLDB
2008
127views more  PVLDB 2008»
13 years 7 months ago
Hashed samples: selectivity estimators for set similarity selection queries
We study selectivity estimation techniques for set similarity queries. A wide variety of similarity measures for sets have been proposed in the past. In this work we concentrate o...
Marios Hadjieleftheriou, Xiaohui Yu, Nick Koudas, ...
ICDE
2011
IEEE
238views Database» more  ICDE 2011»
12 years 12 months ago
Join queries on uncertain data: Semantics and efficient processing
— Uncertain data is quite common nowadays in a variety of modern database applications. At the same time, the join operation is one of the most important but expensive operations...
Tingjian Ge
DASFAA
2011
IEEE
231views Database» more  DASFAA 2011»
12 years 11 months ago
Querying Moving Objects with Uncertainty in Spatio-Temporal Databases
Spatio-temporal uncertainty is a special feature of moving objects due to the inability of precisely capturing or predicting their continuously changing locations. Indeterminate lo...
Hechen Liu, Markus Schneider