771 search results - page 56 / 155 » Access Methods and Query Processing Techniques |
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
Today's query processing engines do not take advantage of the multiple occurrences of a relation in a query to improve performance. Instead, each instance is treated as a dis...
ICDE
2004
IEEE
14 years 11 months ago
2004
IEEE
Temporal aggregate queries retrieve summarized information about records with time-evolving attributes. Existing approaches have at least one of the following shortcomings: (i) th...
BTW
2009
Springer
14 years 1 months ago
2009
Springer
Abstract: Efficient content-based similarity search in large multimedia databases requires efficient query processing algorithms for many practical applications. Especially in hi...
SIGIR
2008
ACM
13 years 10 months ago
2008
ACM
Personalization of web search results as a technique for improving user satisfaction has received notable attention in the research community over the past decade. Much of this wo...
SPIN
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. We present a new decision procedure for detecting property violations in pushdown models for concurrent programs that use lock-based synchronization, where each thread’...