537 search results - page 21 / 108 » Privacy-Preserving Query Answering in Logic-based Informatio... |
VLDB
2008
ACM
14 years 8 months ago
2008
ACM
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...
CLEF
2007
Springer
14 years 2 months ago
2007
Springer
We describe our system for the monolingual Dutch and multilingual English to Dutch QA tasks. First, we present a brief overview of our QA-system, which makes heavy use of syntacti...
CLEF
2005
Springer
14 years 2 months ago
2005
Springer
This paper describes the architecture of a Bulgarian–Bulgarian question answering system — BulQA. The system relies on a partially parsed corpus for answer extraction. The que...
CLEF
2007
Springer
14 years 2 months ago
2007
Springer
This paper accounts for Priberam's participation in the monolingual question answering (QA) track of CLEF 2007. In previous participations, Priberam’s QA system obtained en...
CIKM
2006
Springer
13 years 10 months ago
2006
Springer
Peer Data Management Systems (PDMS) are a natural extension of heterogeneous database systems. One of the main tasks in such systems is efficient query processing. Insisting on co...