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» Ranking Approximate Answers to Semantic Web Queries
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OWLED
2007
13 years 10 months ago
ONTOSEARCH2: Searching Ontologies Semantically
While the Web makes an increasing number of ontologies widely available for applications, how to discover ontologies becomes a more challenging issue. Existing approaches are mainl...
Edward Thomas, Jeff Z. Pan, Derek H. Sleeman
ICDE
2008
IEEE
146views Database» more  ICDE 2008»
14 years 10 months ago
Explaining and Reformulating Authority Flow Queries
Authority flow is an effective ranking mechanism for answering queries on a broad class of data. Systems have been developed to apply this principle on the Web (PageRank and topic ...
Ramakrishna Varadarajan, Vagelis Hristidis, Louiqa...
DASFAA
2007
IEEE
138views Database» more  DASFAA 2007»
14 years 3 months ago
An Original Semantics to Keyword Queries for XML Using Structural Patterns
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
Dimitri Theodoratos, Xiaoying Wu
WWW
2008
ACM
14 years 9 months ago
Race: finding and ranking compact connected trees for keyword proximity search over xml documents
In this paper, we study the problem of keyword proximity search over XML documents and leverage the efficiency and effectiveness. We take the disjunctive semantics among input key...
Guoliang Li, Jianhua Feng, Jianyong Wang, Bei Yu, ...
SEBD
2007
121views Database» more  SEBD 2007»
13 years 10 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...