205 search results - page 14 / 41 » Optimizing Multiple Top-K Queries over Joins |
VLDB
2005
ACM
14 years 1 months ago
2005
ACM
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
SAC
2006
ACM
14 years 1 months ago
2006
ACM
Traditional semantic web query languages support a logicbased access to the semantic web. They offer a retrieval (or reasoning) of data based on facts. On the traditional web and...
APWEB
2010
Springer
13 years 10 months ago
2010
Springer
This paper investigates the problem of processing multiple continuous queries over RFID streaming data in RFID middleware. RFID middleware collects and filters RFID sensing data wh...
SSDBM
2008
IEEE
14 years 2 months ago
2008
IEEE
Increasingly, many data sources appear as online databases, hidden behind query forms, thus forming what is referred to as the deep web. It is desirable to have systems that can pr...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Keyword search is a familiar and potentially effective way to find information of interest that is "locked" inside relational databases. Current work has generally assum...