116 search results - page 21 / 24 » An Extended Relational Database Model for Uncertain and Impr... |
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Improving the precision of information retrieval has been a challenging issue on Chinese Web. As exemplified by Chinese recipes on the Web, it is not easy/natural for people to us...
GEOINFORMATICA
1998
13 years 7 months ago
1998
ally related entity types, or classes, into higher level, more abstract types, as part of a hierarchical classi®cation scheme. graphy, generalization retains the notion of abstrac...
DAGSTUHL
2004
13 years 9 months ago
2004
We study a metamodel for the Entity Relationship (ER) and the Relational data model. We do this by describing the syntax of the ER data model by introducing classes for ER schemata...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
With the rapid growth of wireless technologies and handheld devices, m-commerce is becoming a promising research area. Personalization is especially important to the success of mc...
3DGIS
2006
Springer
14 years 1 months ago
2006
Springer
Database management systems (DBMS) have significantly changed in the last several years. From a system dealing with management of administrative data they have involved to a spati...