186 search results - page 6 / 38 » A Practical Approach to Hypothetical Database Queries |
177
Voted
SIGMOD
2009
ACM
16 years 18 days 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...
108
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TC
1997
15 years 1 months ago
1997
In this paper we describe a new approach to repairing violations of integrity constraints in databases with null values. By adopting basic concepts from model-based diagnosis, we ...
105
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ICDT
1999
ACM
15 years 4 months ago
1999
ACM
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
111
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NDSS
2009
IEEE
15 years 7 months ago
2009
IEEE
Many existing privacy-preserving techniques for querying distributed databases of sensitive information do not scale for large databases due to the use of heavyweight cryptographi...
126
Voted
ICDE
2010
IEEE
15 years 7 months ago
2010
IEEE
— Finding the k nearest neighbors (kNN) of a query point, or a set of query points (kNN-Join) are fundamental problems in many application domains. Many previous efforts to solve...