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FOCS
1998
IEEE
14 years 2 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
ITNG
2008
IEEE
14 years 4 months ago
2008
IEEE
With recent advances in wireless communication and position technologies, it became possible to collect and record trajectories of moving objects. Thus, many services in road netw...
ICDE
2005
IEEE
14 years 3 months ago
2005
IEEE
Structured P2P systems in the form of distributed hash tables (DHT) are a promising approach for building massively distributed data management platforms. However, for many applic...
KDD
2008
ACM
14 years 10 months ago
2008
ACM
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
DPD
2006
13 years 10 months ago
2006
Advances in network technologies and the emergence of Grid computing have both increased the need and provided the infrastructure for computation and data intensive applications to...