Difference between revisions of "Parsing (State of the art)"
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| Line 22: | Line 22: | ||
| Collins' Parser | | Collins' Parser | ||
| Lexicalized PCFG | | Lexicalized PCFG | ||
| − | | Collins | + | | Collins (1999), Bikel's Thesis [http://www.cis.upenn.edu/~dbikel/papers/thesis.pdf] |
| − | | | + | | [http://www.cis.upenn.edu/~dbikel/software.html Dan Bikel's implementation] |
| ??? | | ??? | ||
| | | | ||
| Line 30: | Line 30: | ||
| Automatically induced PCFG | | Automatically induced PCFG | ||
| Petrov, Barrett, Thibaux and Klein, ACL 2006 [http://www.eecs.berkeley.edu/~petrov/data/acl06.pdf], Petrov and Klein, NAACL 2007 [http://www.eecs.berkeley.edu/~petrov/data/naacl07.pdf] | | Petrov, Barrett, Thibaux and Klein, ACL 2006 [http://www.eecs.berkeley.edu/~petrov/data/acl06.pdf], Petrov and Klein, NAACL 2007 [http://www.eecs.berkeley.edu/~petrov/data/naacl07.pdf] | ||
| − | | | + | | [http://nlp.cs.berkeley.edu/Main.html#Parsing Berkeley Parser] |
| 90.1% | | 90.1% | ||
| works well also for Chinese and German | | works well also for Chinese and German | ||
| Line 36: | Line 36: | ||
|} | |} | ||
| + | |||
| + | Collins, M. (1999). ''[http://people.csail.mit.edu/mcollins/papers/thesis.ps Head-driven statistical models for natural language parsing]''. PhD Thesis, Computer and Information Science, University of Pennsylvania. | ||
Johnson, M., and Charniak, E. (2005). [http://acl.ldc.upenn.edu/P/P05/P05-1022.pdf Coarse-to-fine n-best parsing and MaxEnt discriminative reranking]. ''Proceedings of the 43rd Annual Meeting of the ACL'', pages 173–180, Ann Arbor, June 2005. | Johnson, M., and Charniak, E. (2005). [http://acl.ldc.upenn.edu/P/P05/P05-1022.pdf Coarse-to-fine n-best parsing and MaxEnt discriminative reranking]. ''Proceedings of the 43rd Annual Meeting of the ACL'', pages 173–180, Ann Arbor, June 2005. | ||
Revision as of 11:32, 27 June 2007
- Performance measure: PARSEVAL - the evalb program
- Training data: sections 2-22 of Wall Street Journal corpus
- Testing data: section 23 of Wall Street Journal corpus
| System name | Short description | Main publications | Software | Results (PARSEVAL) | Comments |
|---|---|---|---|---|---|
| Johnson & Charniak's Parser | Lexicalized N-Best PCFG + Discriminative re-reanking | Johnson and Charniak (2005) | download | 91.4% | works well also on Brown |
| Collins' Parser | Lexicalized PCFG | Collins (1999), Bikel's Thesis [1] | Dan Bikel's implementation | ??? | |
| Berkeley Parser | Automatically induced PCFG | Petrov, Barrett, Thibaux and Klein, ACL 2006 [2], Petrov and Klein, NAACL 2007 [3] | Berkeley Parser | 90.1% | works well also for Chinese and German |
Collins, M. (1999). Head-driven statistical models for natural language parsing. PhD Thesis, Computer and Information Science, University of Pennsylvania.
Johnson, M., and Charniak, E. (2005). Coarse-to-fine n-best parsing and MaxEnt discriminative reranking. Proceedings of the 43rd Annual Meeting of the ACL, pages 173–180, Ann Arbor, June 2005.