486 search results - page 42 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
144
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PODS
1995
ACM
15 years 5 months ago
1995
ACM
Databases are often incomplete because of the presence of disjunctive information, due to con icts, partial knowledge and other reasons. Queries against such databases often ask q...
195
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VLDB
2002
ACM
16 years 1 months ago
2002
ACM
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
EDBT
2004
ACM
16 years 1 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...
181
Voted
BTW
2007
Springer
15 years 5 months ago
2007
Springer
Abstract: Content based multimedia retrieval is an important topic in database systems. An emerging and challenging topic in this area is the content based search in video data. A ...
121
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SAC
2006
ACM
15 years 7 months ago
2006
ACM
In this paper, we show that representation and reasoning techniques used in traditional knowledge engineering and the emerging Semantic Web can play an important role for heteroge...