Gabriel Machado


2016

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A Sequence Model Approach to Relation Extraction in Portuguese
Sandra Collovini | Gabriel Machado | Renata Vieira
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)

The task of Relation Extraction from texts is one of the main challenges in the area of Information Extraction, considering the required linguistic knowledge and the sophistication of the language processing techniques employed. This task aims at identifying and classifying semantic relations that occur between entities recognized in a given text. In this paper, we evaluated a Conditional Random Fields classifier for the extraction of any relation descriptor occurring between named entities (Organisation, Person and Place categories), as well as pre-defined relation types between these entities in Portuguese texts.