1430 search results - page 142 / 286 » Query operations for moving objects database systems |
162
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
164
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CIKM
2006
Springer
15 years 10 months ago
2006
Springer
Monitoring systems today often involve continuous queries over streaming data, in a distributed collaborative system. The distribution of query operators over a network of process...
327
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ISMIS
2011
Springer
14 years 9 months ago
2011
Springer
Abstract. Frequent itemset mining can be regarded as advanced database querying where a user specifies the dataset to be mined and constraints to be satisfied by the discovered i...
161
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VLDB
1990
ACM
15 years 10 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
180
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CLEF
2007
Springer
16 years 18 days ago
2007
Springer
This paper describes the participation of MIRACLE research consortium at the Query Parsing task of GeoCLEF 2007. Our system is composed of three main modules. First, the Named Geo...