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SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
16 years 6 months ago
Selectivity Estimation using Probabilistic Models
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
Lise Getoor, Benjamin Taskar, Daphne Koller
MMM
2008
Springer
127views Multimedia» more  MMM 2008»
16 years 1 months ago
A Query Language Combining Object Features and Semantic Events for Surveillance Video Retrieval
In this paper, we propose a novel query language for video indexing and retrieval that (1) enables to make queries both at the image level and at the semantic level (2) enables the...
Thi-Lan Le, Monique Thonnat, Alain Boucher, Fran&c...
MDM
2005
Springer
174views Communications» more  MDM 2005»
16 years 6 days ago
GPAC: generic and progressive processing of mobile queries over mobile data
This paper introduces a new family of Generic and Progressive algorithms (GPAC, for short) for continuous mobile queries over mobile objects. GPAC provides a general skeleton that...
Mohamed F. Mokbel, Walid G. Aref
ICDT
1995
ACM
101views Database» more  ICDT 1995»
15 years 10 months ago
Approximation in Databases
Partial information in databases can arise when information from several databases is combined. Even if each database is complete for some \world", the combined databases wil...
Leonid Libkin
203
Voted
BTW
2007
Springer
142views Database» more  BTW 2007»
16 years 27 days ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel