5166 search results - page 111 / 1034 » Web Query Optimizer |
129
click to vote
CDB
2004
Springer
15 years 8 months ago
2004
Springer
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). We present here a nu...
117
click to vote
VLDB
1992
ACM
15 years 6 months ago
1992
ACM
In this paper, we discuss issues involving temporal data fragmentation, temporal query processing, and query optimization in multiprocessor database machines. We propose parallel ...
AAAI
1997
15 years 3 months ago
1997
We consider the problem of query plan optimization in information brokers. Information brokers are programs that facilitate access to collections of information sources by hiding ...
133
click to vote
BDA
2001
15 years 3 months ago
2001
Community Web Portals (e.g., digital libraries, vertical aggregators, infomediaries) have become quite popular nowadays in supporting specific communities of interest on corporate...
167
Voted
SIGIR
2005
ACM
15 years 8 months ago
2005
ACM
Accurate topical categorization of user queries allows for increased effectiveness, efficiency, and revenue potential in general-purpose web search systems. Such categorization be...