Full Seminar Details

Jorge Gracia

University of Zaragoza, Spain

 Jorge Gracia
Discovering the semantics of user keywords
This event took place on Wednesday 05 September 2007 at 11:30

Nowadays the Web is an information resource with an enormous potential. However this potential is not fully exploited by traditional search methods which not consider explicit semantics. In this talk, a system that discovers the intended meaning of a set of user keywords will be described. Firstly, the system discovers the semantics of the user keywords at run-time by harvesting the Semantic Web, obtaining a list of possible senses for each keyword. Secondly, it removes possible redundancies by using a synonymy probability measure. Finally, a disambiguation method is applied to select the most probable intended sense of each keyword according to the context. For example, it is expected that, for the keyword set "life of film stars", the meaning of "star" as "a famous actor" arises instead of its astronomical meaning. The output of this step can be used to build formal queries which represent the initial user query in a knowledge representation language.
In this new paradigm of applications that exploit the huge amount of formally specified information available on the Web, we can find another important example in the Ontology Matching field. A new method has been proposed to derive mappings from an exploration of multiple and heterogeneous online ontologies. In this talk I will describe how this method can be improved by using some techniques from the above mentioned system, in combination with the PowerMap system.

Watch the webcast replay >>

Jobs

Post-Doctoral Research Associate in Haptics and Image Processing

Knowledge Media Institute (KMi)
£33,797 to £40,322
Based in Milton Keynes
Full Time (Job share and flexibility on work hours can be considered), Fixed Term until 31 March 2024

We are looking to hire a Research Associate with skills, experience or interest in Neural Networks (e.g. for image processing), Haptic Interfaces for feeling textures and Human Computer Interaction. The position is advertised as part of a new...

CONTACT US

Knowledge Media Institute
The Open University
Walton Hall
Milton Keynes
MK7 6AA
United Kingdom

Tel: +44 (0)1908 653800

Fax: +44 (0)1908 653169

Email: KMi Support

COMMENT

If you have any comments, suggestions or general feedback regarding our website, please email us at the address below.

Email: KMi Development Team