LREC2012 Tutorial: “Bootstrapping ontology evolution: a generic approach relying on ontology-based information extraction”

Monday, 21 May 2012 – Morning Session

8th international conference on Language Resources and Evaluation (LREC) 2012, Istanbul, Turkey (



This tutorial provides a detailed introduction to the research area of ontology evolution. After a short introduction to the problem of ontology evolution and the presentation of the current state of the art, the tutorial will present in detail the ontology learning approach that has been developed in the context of the BOEMIE EU-funded research project. The tutorial will present an ontology-based information extraction system and how this system is exploited to learn an ontology in a synergetic, semi-automated approach, employing bootstrapping. The third part of the tutorial will focus on how internal information (encoded in instances) and external knowledge sources (i.e. other ontologies and hierarchies) can be exploited in order to enhance proposals for new concepts, through instance matching. Finally, the tutorial will conclude with the state of the art in ontology evaluation, and evaluation results of the described approach on the thematic domain of athletics.

The Presenters:


Dr. Georgios Petasis (NCSR “Demokritos”, Greece)

Dr. Anastasia Krithara (NCSR “Demokritos”, Greece)

Dr. Alfio Ferrara (University of Milano, Italy)

Dr. Vangelis Karkaletsis (NCSR “Demokritos”, Greece)