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» Improving Semantic Query Answering
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ESWS
2010
Springer
15 years 9 months ago
TrOWL: Tractable OWL 2 Reasoning Infrastructure
The Semantic Web movement has led to the publication of thousands of ontologies online. These ontologies present and mediate information and knowledge on the Semantic Web. Tools ex...
Edward Thomas, Jeff Z. Pan, Yuan Ren
SEMWEB
2010
Springer
15 years 3 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
CLEF
2005
Springer
15 years 11 months ago
Use of Free On-Line Machine Translation for Interactive Cross-Language Question Answering
Free on-line machine translation systems are employed more and more by Internet users. In this paper we have explored the use of these systems for Cross-Language Question Answering...
Ángel F. Zazo Rodríguez, Carlos G. F...
ICDE
2009
IEEE
170views Database» more  ICDE 2009»
16 years 7 months ago
Semantics of Ranking Queries for Probabilistic Data and Expected Ranks
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
Graham Cormode, Feifei Li, Ke Yi
DEXA
2009
Springer
177views Database» more  DEXA 2009»
16 years 19 days ago
Querying XML Data with SPARQL
SPARQL is today the standard access language for Semantic Web data. In the recent years XML databases have also acquired industrial importance due to the widespread applicability o...
Nikos Bikakis, Nektarios Gioldasis, Chrisa Tsinara...