Learning to resolve natural language ambiguities: a unified approach
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
Automatic labeling of semantic roles
Computational Linguistics
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ICML '01 Proceedings of the Eighteenth International Conference on Machine Learning
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Computational Linguistics - Special issue on using large corpora: II
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NAACL 2000 Proceedings of the 1st North American chapter of the Association for Computational Linguistics conference
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COLING '02 Proceedings of the 19th international conference on Computational linguistics - Volume 1
Head-Driven Statistical Models for Natural Language Parsing
Computational Linguistics
Identifying semantic roles using Combinatory Categorial Grammar
EMNLP '03 Proceedings of the 2003 conference on Empirical methods in natural language processing
The Proposition Bank: An Annotated Corpus of Semantic Roles
Computational Linguistics
Introduction to the CoNLL-2005 shared task: semantic role labeling
CONLL '05 Proceedings of the Ninth Conference on Computational Natural Language Learning
Generalized inference with multiple semantic role labeling systems
CONLL '05 Proceedings of the Ninth Conference on Computational Natural Language Learning
Semantic role chunking combining complementary syntactic views
CONLL '05 Proceedings of the Ninth Conference on Computational Natural Language Learning
Semantic Role Labeling
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Currently there are increasingly more private and academic publications in the form of digital content on the Internet making extremely difficult to extract and maintain the content information manually. Normally, these tasks follow approximations based on natural language processing. This paper presents a preliminary approach for obtaining a semantic role labeler for Portuguese, a little explored aspect of natural language processing for this language. The approach was evaluated for the 3 most frequent semantic roles (relation, subject and object) with a subset of Bosque 8.0 corpus. The same approach was applied to an English corpus --- the CONLL'2004 one and its results were compared to the ones obtained on the CONLL'2004 shared task. At the same time it presents BosqueUE, a Portuguese corpus for semantic role labeling that can be the basis material for future research in the area. This corpus has the same format as the CONLL'2004 one, facilitating multi-language evaluations.