2145 search results - page 91 / 429 » Answering Queries Using Views |
213
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SIGMOD
2009
ACM
16 years 3 months ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...
141
Voted
GIS
1995
ACM
15 years 7 months ago
1995
ACM
An algorithm is presented to answer window queries in a quadtree-based spatial database environment by retrieving the covering blocks in the underlying spatial database. It works ...
129
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SIGMOD
1998
ACM
15 years 7 months ago
1998
ACM
The Relational On-Line Analytical Processing (ROLAP) is emerging as thedominant approach in data warehousing with decision support applications. In order to enhance query performa...
167
Voted
VLDB
2007
ACM
15 years 9 months ago
2007
ACM
In many applications, the underlying data (the web, an XML document, or a relational database) can be seen as a graph. These graphs may be enriched with weights, associated with t...
120
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ICTAI
2003
IEEE
15 years 8 months ago
2003
IEEE
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...