109 search results - page 21 / 22 » Index Merging |
VLDB
2005
ACM
14 years 7 months ago
2005
ACM
Abstract. In this paper we present new concurrent and recoverable B-link-tree algorithms. Unlike previous algorithms, ours maintain the balance of the B-link tree at all times, so ...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
CLEF
2007
Springer
14 years 1 months ago
2007
Springer
In this paper, we propose a pseudo-relevance feedback method to deal with the photographic retrieval and medical retrieval tasks of ImageCLEF 2007. The aim of our participation to...
ICDT
2005
ACM
14 years 26 days ago
2005
ACM
We present a formal analysis of the database layout problem, i.e., the problem of determining how database objects such as tables and indexes are assigned to disk drives. Optimizin...
VLDB
2005
ACM
14 years 25 days ago
2005
ACM
In recent years, publish-subscribe (pub-sub) systems based on XML document filtering have received much attention. In a typical pubsub system, subscribed users specify their inte...