365 search results - page 27 / 73 » Answering Non-Monotonic Queries in Relational Data Exchange |
KDD
1999
ACM
15 years 1 months ago
1999
ACM
Efficiently answering decision support queries is an important problem. Most of the work in this direction has been in the context of the data cube. Queries are efficiently answer...
APWEB
2010
Springer
15 years 2 months ago
2010
Springer
Abstract. The term Deep Web (sometimes also called Hidden Web) refers to the data content that is created dynamically as the result of a specific search on the Web. In this respec...
93
Voted
VLDB
1994
ACM
15 years 1 months ago
1994
ACM
This paper introduces a formalism to describe the needs and preferences of database users. Because of the precise formulation of these concepts, we have found an automatic and ver...
IS
2011
14 years 1 months ago
2011
Sensor networks are often used to perform monitoring tasks, such as animal and vehicle tracking, or the surveillance of enemy forces in military applications. In this paper we int...
JIIS
2006
14 years 9 months ago
2006
For some years, data summarization techniques have been developed to handle the growth of databases. However these techniques are usually not provided with tools for enduserstoeffi...