6974 search results - page 984 / 1395 » Querying Semi-Structured Data |
201
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
We consider the problem of efficiently sampling Web search engine query results. In turn, using a small random sample instead of the full set of results leads to efficient approxi...
268
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SIGMOD
2007
ACM
16 years 7 months ago
2007
ACM
Database queries are often exploratory and users often find their queries return too many answers, many of them irrelevant. Existing work either categorizes or ranks the results t...
261
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SIGMOD
2005
ACM
16 years 7 months ago
2005
ACM
In this paper, we study the evaluation of skyline queries with partially-ordered attributes. Because such attributes lack a total ordering, traditional index-based evaluation algo...
177
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SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...
192
Voted
SIGMOD
2002
ACM
16 years 7 months ago
2002
ACM
Dwarf is a highly compressed structure for computing, storing, and querying data cubes. Dwarf identifies prefix and suffix structural redundancies and factors them out by coalesci...