287 search results - page 36 / 58 » Optimization Techniques for Queries with Expensive Methods |
EDBT
2011
ACM
12 years 11 months ago
2011
ACM
Equi-depth histograms represent a fundamental synopsis widely used in both database and data stream applications, as they provide the cornerstone of many techniques such as query ...
KBSE
2005
IEEE
14 years 1 months ago
2005
IEEE
Concurrent programs are notorious for containing errors that are difficult to reproduce and diagnose. Two common kinds of concurrency errors are data races and atomicity violation...
SIGIR
2011
ACM
12 years 10 months ago
2011
ACM
Large search engines process thousands of queries per second over billions of documents, making query processing a major performance bottleneck. An important class of optimization...
CGF
2008
13 years 7 months ago
2008
We present a new algorithm for efficient occlusion culling using hardware occlusion queries. The algorithm significantly improves on previous techniques by making better use of te...
ICDE
2008
IEEE
14 years 8 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...