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» Instance-Based Query Answering with Semantic Knowledge Bases
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SEMWEB
2011
Springer
12 years 10 months ago
Watson, more than a Semantic Web search engine
In this tool report, we present an overview of the Watson system, a Semantic Web search engine providing various functionalities not only to find and locate ontologies and semanti...
Mathieu d'Aquin, Enrico Motta
ICDE
2007
IEEE
132views Database» more  ICDE 2007»
14 years 9 months ago
XPlainer: Visual Explanations of XPath Queries
The popularity of XML has motivated the development of novel XML processing tools many of which embed the XPath language for XML querying, transformation, constraint specification...
Mariano P. Consens, John W. S. Liu, Flavio Rizzolo
EDBT
2010
ACM
164views Database» more  EDBT 2010»
13 years 11 months ago
Techniques for efficiently querying scientific workflow provenance graphs
A key advantage of scientific workflow systems over traditional scripting approaches is their ability to automatically record data and process dependencies introduced during workf...
Manish Kumar Anand, Shawn Bowers, Bertram Ludä...
AAAI
2007
13 years 10 months ago
Knowledge Compilation Properties of Tree-of-BDDs
We present a CNF to Tree-of-BDDs (ToB) compiler with complexity at most exponential in the tree width. We then present algorithms for interesting queries on ToB. Although some of ...
Sathiamoorthy Subbarayan, Lucas Bordeaux, Youssef ...
PSSS
2003
13 years 9 months ago
DLDB: Extending Relational Databases to Support Semantic Web Queries
Abstract: We present DLDB, a knowledge base system that extends a relational database management system with additional capabilities for DAML+OIL inference. We discuss a number of ...
Zhengxiang Pan, Jeff Heflin