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» Conjunctive Query Answering in EL using a Database System
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IADIS
2003
13 years 10 months ago
Querying Databases and XML Documents: Comparative Study and a New Proposal
XML has become the most useful standard of data interchange in the web and e-business world and there is a large amount of information stored in this format. Nonetheless, a large ...
Ana Fermoso García, María José...
PODS
2010
ACM
207views Database» more  PODS 2010»
14 years 1 months ago
Understanding cardinality estimation using entropy maximization
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
Christopher Ré, Dan Suciu
CAISE
2005
Springer
14 years 2 months ago
Query Processing Using Ontologies
Abstract. Recently, the database and AI research communities have paid increased attention to ontologies. The main motivating reason is that ontologies promise solutions for comple...
Chokri Ben Necib, Johann Christoph Freytag
CLEF
2005
Springer
14 years 2 months ago
BulQA: Bulgarian-Bulgarian Question Answering at CLEF 2005
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...
Kiril Ivanov Simov, Petya Osenova
VLDB
2005
ACM
117views Database» more  VLDB 2005»
14 years 2 months ago
Data Sharing in the Hyperion Peer Database System
This demo presents Hyperion, a prototype system that supports data sharing for a network of independent Peer Relational Database Management Systems (PDBMSs). The nodes of such a n...
Patricia Rodríguez-Gianolli, Maddalena Garz...