USING ONTOLOGIES TO PROSPECT OFFERS ON THE WEB

摘要

Nowadays, information retrieval and extraction systems perform an important role getting relevant information from the World Wide Web (WWW). Semantic Web, which can be seen as the Web's future, introduces a set of concepts and tools that are being used to insert "intelligence" into contents of the current WWW. Among such concepts, Ontologies play a fundamental role in this new environment. Through ontologies, software agents can cover the Web "understanding" its meaning in order to execute more complex and useful tasks. This work presents an architecture that uses Semantic Web concepts allied to Regular Expressions (regex) to develop a device that retrieves/extracts specific domain information from the Web (HTML documents). The prototype developed, based on this architecture, gets data about offers announced on supermarkets Web sites, using Ontologies and regex to achieve this goal.