6004 search results - page 891 / 1201 » Parallelizing query optimization |
140
click to vote
EDBT
2009
ACM
15 years 10 months ago
2009
ACM
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
154
click to vote
ICCS
2009
Springer
15 years 9 months ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
142
click to vote
DOCENG
2006
ACM
15 years 9 months ago
2006
ACM
XPath is the standard declarative language for navigating XML data and returning a set of matching nodes. In the context of XSLT/XQuery analysis, query optimization, and XML type ...
137
click to vote
SAC
2006
ACM
15 years 9 months ago
2006
ACM
This paper introduces the MTree index algorithm, a special purpose XML XPath index designed to meet the needs of the hierarchical XPath query language. With the increasing importa...
133
click to vote
SIGIR
2006
ACM
15 years 9 months ago
2006
ACM
The paper is concerned with applying learning to rank to document retrieval. Ranking SVM is a typical method of learning to rank. We point out that there are two factors one must ...