610 search results - page 34 / 122 » Efficient Query Evaluation on Probabilistic Databases |
130
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SIGMOD
2008
ACM
15 years 3 months ago
2008
ACM
Tree pattern queries (TPQs) provide a natural and easy formalism to query tree-structured XML data, and the efficient processing of such queries has attracted a lot of attention. ...
122
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IDEAS
2000
IEEE
15 years 7 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
200
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ICDE
2004
IEEE
16 years 4 months ago
2004
IEEE
Peer-to-peer systems are mainly used for object sharing although they can provide the infrastructure for many other applications. In this paper, we extend the idea of object shari...
EDBT
2004
ACM
16 years 3 months ago
2004
ACM
Though skyline queries already have claimed their place in retrieval over central databases, their application in Web information systems up to now was impossible due to the distri...
125
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EDBT
2006
ACM
16 years 3 months ago
2006
ACM
Incomplete databases, that is, databases that are missing data, are present in many research domains. It is important to derive techniques to access these databases efficiently. We...