Poly-co: An Unsupervised Co-reference Detection System

We describe our contribution to the Generation Challenge 2010 for the tasks of Named Entity Recognition and coreference detection (GREC-NER). To extract the NE and the referring expressions, we employ a combination of a Part of Speech Tagger and the Conditional Random Fields (CRF) learning technique. We finally experiment an original algorithm to detect co-references. We conclude with discussion about our system performances.

• Type: Journal
• Year: 2010
• Where: INLG
• Authors: Eric Charton, Michel Gagnon, Benoît Ozell
• Keywords: Conditional Random Fields, Entity Recognition, INLG 2010, Natural Language Processing, Speech Tagger