SEMAFOR

This page provides a link to a frame-semantic parser developed by Dipanjan Das, André F T. Martins, Nathan Schneider, Desai Chen, and Noah Smith

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SEMAFOR-2.1, README

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Further Reading

An Exact Dual Decomposition Algorithm for Shallow Semantic Parsing with Constraints.
Dipanjan Das, André F. T. Martins, and Noah A. Smith
In Proceedings of the Joint Conference on Lexical and Computational Semantics (*SEM 2012), Montréal, Québec, June 2012.

Graph-Based Lexicon Expansion with Sparsity-Inducing Penalties.
Dipanjan Das and Noah A. Smith
In Proceedings of the Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2012), Montréal, Québec, June 2012.

Semi-Supervised Frame-Semantic Parsing for Unknown Predicates
Dipanjan Das and Noah A. Smith
In Proceedings of Annual Meeting of the Association for Computational Linguistics (ACL 2011), Portland, OR, June 2011.

Probabilistic Frame-Semantic Parsing
Dipanjan Das, Nathan Schneider, Desai Chen, and Noah A. Smith
In Proceedings of the North American Chapter of the Association for Computational Linguistics Human Language Technologies Conference (NAACL 2010), Los Angeles, CA, June 2010.

The following technical reports describes the parser in more detail:

Semi-Supervised and Latent-Variable Models of Natural Language Semantics
Dipanjan Das
Ph.D. Thesis/Carnegie Mellon University Technical Report CMU-LTI-12-007, May 2012.

SEMAFOR 1.0: A Probabilistic Frame-Semantic Parser
Dipanjan Das, Nathan Schneider, Desai Chen, and Noah A. Smith
Carnegie Mellon University Technical Report CMU-LTI-10-001, April 2010.

Acknowledgments

This work was supported by DARPA grant NBCH-1080004, NSF grants IIS-0836431, IIS-0844507, IIS-0915187, and IIS-1054319, Google's support through the "Wordly Knowledge Project", Qatar National Research Fund grant NPRP08-485-1-083, computational resources provided by Yahoo and TeraGrid resources provided by the Pittsburgh Supercomputing Center under NSF grant number TG-DBS110003.

For questions, bug fixes and comments, please e-mail dipanjan [strudel] cs.cmu.edu or nschneid [strudel] cs.cmu.edu