505 search results - page 66 / 101 » Queries with Incomplete Answers over Semistructured Data |
104
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COMGEO
2008
ACM
14 years 9 months ago
2008
ACM
Given a planar polygonal subdivision S, the point location problem is to preprocess S into a data structure so that the cell of the subdivision that contains a given query point c...
174
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ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
Supporting top-k queries over distributed collections of schemaless XML data poses two challenges. While XML supports expressive query languages such as XPath and XQuery, these la...
158
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VLDB
2002
ACM
15 years 10 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 ...
175
Voted
ICDE
2008
IEEE
15 years 11 months ago
2008
IEEE
We introduce a novel query type defined over streaming moving object data, namely, the Continuous Motion Pattern (CMP) Queries. A motion pattern is defined as a sequence of distin...
169
Voted
SIGMOD
2008
ACM
15 years 9 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...