115 search results - page 22 / 23 » Predicate Migration: Optimizing Queries with Expensive Predi... |
ECAI
1998
Springer
13 years 8 months ago
1998
Springer
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
ICDE
2002
IEEE
13 years 10 months ago
2002
IEEE
Soon, much of the data exchanged over the Internet will be encoded in XML, allowing for sophisticated filtering and content-based routing. We have built a filtering engine called ...
PVLDB
2008
13 years 4 months ago
2008
We propose EndoScope, a software monitoring framework that allows users to pose declarative queries that monitor the state and performance of running programs. Unlike most existin...
DEBS
2007
ACM
13 years 9 months ago
2007
ACM
Content-based publish/subscribe systems allow matching the content of events with predicates in the subscriptions. However, most existing systems only allow a limited set of opera...
BDA
2006
13 years 6 months ago
2006
XML data projection (or pruning) is one of the main optimization techniques recently adopted in the context of main-memory XML query-engines. The underlying idea is quite simple: ...