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VLDB
2008
ACM
178views Database» more  VLDB 2008»
16 years 6 months ago
The Bdual-Tree: indexing moving objects by space filling curves in the dual space
Abstract Existing spatiotemporal indexes suffer from either large update cost or poor query performance, except for the Bx -tree (the state-of-the-art), which consists of multiple ...
Man Lung Yiu, Yufei Tao, Nikos Mamoulis
CN
1999
78views more  CN 1999»
15 years 6 months ago
Results and Challenges in Web Search Evaluation
A frozen 18.5 million page snapshot of part of the Web has been created to enable and encourage meaningful and reproducible evaluation of Web search systems and techniques. This c...
David Hawking, Nick Craswell, Paul B. Thistlewaite...
KDD
2006
ACM
121views Data Mining» more  KDD 2006»
16 years 6 months ago
Query-time entity resolution
The goal of entity resolution is to reconcile database references corresponding to the same real-world entities. Given the abundance of publicly available databases where entities...
Indrajit Bhattacharya, Lise Getoor, Louis Licamele
PODS
2006
ACM
177views Database» more  PODS 2006»
16 years 6 months ago
Equivalence of queries combining set and bag-set semantics
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
Sara Cohen
DMSN
2005
ACM
15 years 8 months ago
The threshold join algorithm for top-k queries in distributed sensor networks
In this paper we present the Threshold Join Algorithm (TJA), which is an efficient TOP-k query processing algorithm for distributed sensor networks. The objective of a top-k query...
Demetrios Zeinalipour-Yazti, Zografoula Vagena, Di...