Also published online by CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) Proceedings of the Workshop on Social and Collaborative Construction of Structured Knowledge, CKC 2007In this work, we present an extension of CORE [8], a tool for
Collaborative Ontology Reuse and Evaluation. The system receives
an informal description of a specific semantic domain and
determines which ontologies from a repository are the most
appropriate to describe the given domain. For this task, the
environment is divided into three modules. The first component
receives the problem description as a set of terms, and allows the
user to refine and enlarge it using WordNet. The second module
applies multiple automatic criteria to evaluate the ontologies of the
repository, and determines which ones fit best the problem
description. A ranked list of ontologies is returned for each criterion,
and the lists are combined by means of rank fusion techniques.
Finally, the third component uses manual user evaluations in order
to incorporate a human, collaborative assessment of the ontologies.
The new version of the system incorporates several novelties, such
as its implementation as a web application; the incorporation of a
NLP module to manage the problem definitions; modifications on
the automatic ontology retrieval strategies; and a collaborative
framework to find potential relevant terms according to previous
user queries. Finally, we present some early experiments on
ontology retrieval and evaluation, showing the benefits of our system.This research was supported by the Spanish Ministry of Science
and Education (TIN2005-06885 and FPU program)