1059 search results - page 108 / 212 » Improving Semantic Query Answering |
SIGMOD
2003
ACM
14 years 10 months ago
2003
ACM
Recently, a technique called quotient cube was proposed as a summary structure for a data cube that preserves its semantics, with applications for online exploration and visualiza...
ICDE
2011
IEEE
13 years 1 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...
CORR
2010
Springer
13 years 10 months ago
2010
Springer
: - In this paper we present several novel efficient techniques and multidimensional data structures which can improve the decision making process in many domains. We consider onli...
EDBT
2008
ACM
14 years 3 days ago
2008
ACM
The goal of the Semantic Web is to support semantic interoperability between applications exchanging data on the web. The idea heavily relies on data being made available in machi...
ERSHOV
2006
Springer
14 years 2 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...