1183 search results - page 2 / 237 » Exploiting Conceptual Knowledge for Querying Information Sys... |
EKAW
1999
Springer
13 years 10 months ago
1999
Springer
Abstract. Conceptual Information Systems unfold the conceptual structure of data stored in relational databases. In the design phase of the system, conceptual hierarchies have to b...
AWIC
2005
Springer
13 years 11 months ago
2005
Springer
Query expansion has been extensively studied as a technique for increasing information retrieval performance. However, due to the volume of documents available on the web, many of ...
APIN
2000
13 years 5 months ago
2000
Abstract. This paper addresses several issues related to the use of conceptual modeling to support serviceoriented, advanced information systems. It shows how conceptual modeling o...
MIR
2010
ACM
14 years 14 days ago
2010
ACM
Most video retrieval systems are multimodal, commonly relying on textual information, low- and high-level semantic features extracted from query visual examples. In this work, we ...
SIGIR
2009
ACM
14 years 3 days ago
2009
ACM
A weakly-supervised extraction method identifies concepts within conceptual hierarchies, at the appropriate level of specificity (e.g., Bank vs. Institution), to which attribute...