574 search results - page 23 / 115 » Distributed Queries and Query Optimization in Schema-Based P... |
237
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GIS
2004
ACM
16 years 2 months ago
2004
ACM
Online multi-participant virtual-world systems have attracted significant interest from the Internet community but are hindered by their inability to efficiently support interacti...
217
Voted
ICDT
2011
ACM
14 years 5 months ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...
114
Voted
PODC
2011
ACM
14 years 4 months ago
2011
ACM
We present the Mindicator, a set implementation customized for shared memory runtime systems. The Mindicator is optimized for constant-time querying of its minimum element, while ...
225
Voted
GIS
2005
ACM
16 years 2 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
190
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ICDE
2002
IEEE
16 years 3 months ago
2002
IEEE
The ability to provide accurate and efficient result estimations of user queries is very important for the query optimizer in database systems. In this paper, we show that the tra...