Abstract:
Information extraction systems identify and retrieve certain types of information from natural language text. A recent development in the field of information extraction is the emergence of ontology-based information extraction as a sub-filed, where ontologies are used to guide the information extraction process and to present the extracted information.
One of the challenges faced by fields of ontology-based information extraction and information extraction is the difficulty of reuse of prior work in developing new systems. A component-based approach for information extraction named OBCIE (Ontology-Based Components for Information Extraction) has been previously developed to address this issue. This paper presents the progress in developing an ontology construction component for the OBCIE approach, which identifies classes and relationships for a given domain. It is centered on discovering the information contained within the loose
structure of Wikipedia pages.