333 search results - page 16 / 67 » Read-Once Functions and Query Evaluation in Probabilistic Da... |
DBPL
1997
Springer
15 years 3 months ago
1997
Springer
We examine the power of incremental evaluation systems that use an SQL-like language for maintaining recursively-de ned views. We show that recursive queries such as transitive clo...
SIGMOD
2002
ACM
15 years 11 months ago
2002
ACM
Time-parameterized queries (TP queries for short) retrieve (i) the actual result at the time that the query is issued, (ii) the validity period of the result given the current mot...
214
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ICDE
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
117
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ICDT
2010
ACM
15 years 9 months ago
2010
ACM
The work reported here lays the foundations of data exchange in the presence of probabilistic data. This requires rethinking the very basic concepts of traditional data exchange, ...
ICDE
2010
IEEE
15 years 11 months ago
2010
IEEE
Personalized database systems give users answers tailored to their personal preferences. While numerous preference evaluation methods for databases have been proposed (e.g., skylin...