3368 search results - page 156 / 674 » The Complexity of Query Reliability |
120
Voted
PODS
2010
ACM
15 years 7 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
131
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SIGMOD
1997
ACM
15 years 6 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
125
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DBPL
1995
Springer
15 years 6 months ago
1995
Springer
We study the problem of maintaining recursively-de ned views, such as the transitive closure of a relation, in traditional relational languages that do not have recursion mechanis...
135
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AUSAI
2008
Springer
15 years 4 months ago
2008
Springer
When a user is looking for a product recommendation they usually lack expert knowledge regarding the items they are looking for. Ontologies on the other hand are crafted by experts...
139
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COMPGEOM
2005
ACM
15 years 4 months ago
2005
ACM
We introduce a new type of diagram called the VV(c)-diagram (the visibility–Voronoi diagram for clearance c), which is a hybrid between the visibility graph and the Voronoi diag...