1679 search results - page 45 / 336 » Pointcuts as Functional Queries |
130
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ICDT
2010
ACM
15 years 2 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
130
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CIDR
2007
15 years 2 months ago
2007
We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
220
Voted
ICDE
2008
IEEE
16 years 2 months ago
2008
IEEE
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
104
Voted
ICFP
2008
ACM
16 years 21 days ago
2008
ACM
Optimal path queries are queries to obtain an optimal path specified by a given criterion of optimality. There have been many studies to give efficient algorithms for classes of o...
113
Voted
VLDB
2004
ACM
15 years 6 months ago
2004
ACM
We investigate the problem of ranking answers to a database query when many tuples are returned. We adapt and apply principles of probabilistic models from Information Retrieval f...