785 search results - page 53 / 157 » Efficient Processing of Top-k Queries in Uncertain Databases |
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
Recently, skyline queries have attracted much attention in the database research community. Space partitioning techniques, such as recursive division of the data space, have been ...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...
Publication
Spatio-temporal data streams that are generated from mobile stream sources (e.g., mobile sensors) experience similar environmental conditions that result in distinct phenomena. Sev...
EUROPAR
2008
Springer
13 years 10 months ago
2008
Springer
Abstract. Distributed moving object database servers are a feasible solution to the scalability problem of centralized database systems. In this paper we propose a distributed inde...
DASFAA
2009
IEEE
14 years 23 days ago
2009
IEEE
Graph-structured databases and related problems such as reachability query processing have been increasingly relevant to many applications such as XML databases, biological databas...