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» Conjunctive Query Answering in SH using Knots
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TREC
2007
13 years 8 months ago
DUTIR at TREC 2007 Genomics Track
This paper describes our experiments on TREC 2007 Genomics Track which is concerned with question answering extraction from full-text biomedical literatures. In our experiment, na...
Zhihao Yang, Hongfei Lin, Baojin Cui, Yanpeng Li, ...
VLDB
2001
ACM
157views Database» more  VLDB 2001»
14 years 7 months ago
MiniCon: A scalable algorithm for answering queries using views
The problem of answering queries using views is to find efficient methods of answering a query using a set of previously materialized views over the database, rather than accessing...
Rachel Pottinger, Alon Y. Halevy
SEBD
2007
121views Database» more  SEBD 2007»
13 years 8 months ago
Query Answering in Expressive Variants of DL-Lite
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large am...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
JAPLL
2010
179views more  JAPLL 2010»
13 years 5 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...
PODS
2006
ACM
121views Database» more  PODS 2006»
14 years 7 months ago
On the efficiency of checking perfect privacy
Privacy-preserving query-answering systems answer queries while provably guaranteeing that sensitive information is kept secret. One very attractive notion of privacy is perfect p...
Ashwin Machanavajjhala, Johannes Gehrke