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CIKM
2008
Springer
13 years 9 months ago
Aggregate queries over ontologies
Answering queries over ontologies is an important issue for the Semantic Web. Aggregate queries were widely studied for relational databases but almost no results are known for ag...
Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Ca...
CLEF
2008
Springer
13 years 9 months ago
WikiTranslate: Query Translation for Cross-Lingual Information Retrieval Using Only Wikipedia
This paper presents WikiTranslate, a system which performs query translation for cross-lingual information retrieval (CLIR) using only Wikipedia to obtain translations. Queries ar...
Dong Nguyen, Arnold Overwijk, Claudia Hauff, Dolf ...
RIAO
2007
13 years 9 months ago
An Information Retrieval Driven by Ontology: from Query to Document Expansion
The paper proposes an approach to information retrieval based on the use of a structure (ontology) both for document (resp. query) indexing and query evaluating. The conceptual st...
Mustapha Baziz, Mohand Boughanem, Gabriella Pasi, ...
CIKM
1994
Springer
13 years 11 months ago
Using Path Information for Query Processing in Object-Oriented Database Systems
This paper argues that most queries in object-oriented databases require traversing from one object to another in the aggregation hierarchy. Thus, the connections between objects ...
Dik Lun Lee, Wang-Chien Lee
SCANGIS
2003
13 years 9 months ago
A Card-based Visual Query System for Geographical Information Systems
This paper introduces a visual query system for geographical information systems, which is easy to use for non-professional persons. The system creates a new iconic metaphor — a ...
Shiguang Ju, Weigang Guo, Héctor J. Hern&aa...