Data Set Used
This paper presents an evaluation of indirect anaphor resolution which considers as lexical resource the semantic tagging provided by the PALAVRAS parser. We describe the semantic tagging process and a corpus experiment.
This work presents the evaluation of a discourse status classifier for the Portuguese language. It considers two distinguished classes of discourse novelty: Brand-new and New references. An evaluation of the relevant features according to different linguistic levels are presented in detail.
This paper presents two approaches to Portuguese anaphor resolution, one based on a morpho-syntactic information and other on semantic features. We present a corpus based evaluation, focusing especially on anaphoric definite descriptions, which includes direct, indirect and associative anaphors.
This work presents a system for the automatic classification of a specific type of referential expressions in Portuguese texts (definite description). The system is based on XML (eXtensible Markup Language) annotated corpus and the extraction of the relevant information is done with XSL (eXtensible Stylesheet Language). An evaluation of the results is… (More)
The task of Relation Extraction is one of the main challenges in Natural Language Processing. We present a review of the state-of-the-art for Relation Extraction in free texts, addressing the progress and difficulties of the area, and situating Portuguese in that frame. We discuss the different aspects related to this task, considering the main… (More)