TUCUXI: The InTelligent Hunter Agent for Concept Understanding and LeXical ChaIning

In this paper we present TUCUXI, an intelligent hunter agent that replaces traditional keywords-based queries on the Web with a user-provided domain ontology, where meanings to be searched are not ambiguous. TUCUXI judges the relevance of the retrieved pages by matching the domain ontology against a simplified, but semantically rich, document representation (Map of Meanings). The Map of Meanings extraction involves the Lexical Chaining technique, from the Natural Language Processing (NLP) research field.