206 search results - page 29 / 42 » A nonblocking set optimized for querying the minimum value |
VLDB
2007
ACM
15 years 5 months ago
2007
ACM
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
115
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NETWORKS
2002
14 years 11 months ago
2002
Consider a requirement graph whose vertices represent customers and an edge represents the need to route a unit of flow between its end vertices along a single path. All of these ...
116
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ENTCS
2007
14 years 11 months ago
2007
We suggest a formal model to represent and solve the multicast routing problem in multicast networks. To attain this, we model the network adapting it to a weighted and-or graph, ...
EDBT
2010
ACM
15 years 6 months ago
2010
ACM
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
VLDB
2004
ACM
15 years 5 months ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...