Extending XML Query Language Xcerpt by Ontology Queries

The paper addresses a problem of combining XML querying with ontology reasoning. We present an extension of a rule-based XML query and transformation language Xcerpt. The extension allows to interface an ontology reasoner from Xcerpt programs. In this way querying can employ the ontology information, for instance to filter out semantically irrelevant answers. The approach employs an existing Xcerpt engine and ontology reasoner; no modifications are required. We present the semantics of extended Xcerpt and an implementation algorithm. Communication between Xcerpt programs and ontology reasoner is based on DIG interface.

[1]  Marti A. Hearst.  Automatic Acquisition of Hyponyms from Large Text Corpora , 1992, COLING.

[2]  Slava M. Katz,et al.  Technical terminology: some linguistic properties and an algorithm for identification in text , 1995, Natural Language Engineering.

[3]  Emmanuel Coquery,et al.  Descriptive Typing Rules for Xcerpt , 2005, PPSWR.

[4]  Pedro Barahona,et al.  Reasoning Web, Second International Summer School 2006, Lisbon, Portugal, September 4-8, 2006, Tutorial Lectures , 2006, Reasoning Web.

[5]  Peter Crowther,et al.  The DIG Description Logic Interface , 2003, Description Logics.

[6]  Mark Steyvers,et al.  Finding scientific topics , 2004, Proceedings of the National Academy of Sciences of the United States of America.

[7]  Zhiyong Zhang,et al.  Efficient Hybrid Web Recommendations Based on Markov Clickstream Models and Implicit Search , 2007, IEEE/WIC/ACM International Conference on Web Intelligence (WI'07).

[8]  Peter F. Patel-Schneider,et al.  The Yin/Yang Web: A Unified Model for XML Syntax and RDF Semantics , 2003, IEEE Trans. Knowl. Data Eng..

[9]  Ulrich Heid,et al.  A linguistic bootstrapping approach to the extraction of term candidates from German Text , 1998 .

[10]  Artur Wilk,et al.  XML Querying Using Ontological Information , 2006, PPSWR.

[11]  Artur Wilk.  Descriptive Types for XML Query Language Xcerpt , 2006 .

[12]  Wei Li,et al.  Pachinko allocation: DAG-structured mixture models of topic correlations , 2006, ICML.

[13]  Sebastian Schaffert,et al.  Xcerpt: a rule-based query and transformation language for the web , 2004 .

[14]  Dan I. Moldovan,et al.  An Interactive Tool for the Rapid Development of Knowledge Bases , 2001, Int. J. Artif. Intell. Tools.

[15]  François Bry,et al.  Querying the Web Reconsidered: A Practical Introduction to Xcerpt , 2004, Extreme Markup Languages®.

[16]  Wlodzimierz Drabent,et al.  Combining XML querying with ontology reasoning : Xcerpt and DIG , 2006 .

[17]  Uwe Aßmann,et al.  Combining Safe Rules and Ontologies by Interfacing of Reasoners , 2006, PPSWR.