MUC-7 (State of the art): Difference between revisions
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* '''Recall:''' percentage of named entities defined in the corpus that were found by the program | * '''Recall:''' percentage of named entities defined in the corpus that were found by the program | ||
* Exact calculation of precision and recall is explained in the [http://www.itl.nist.gov/iad/894.02/related_projects/muc/muc_sw/muc_sw_manual.html MUC scoring software] | * Exact calculation of precision and recall is explained in the [http://www.itl.nist.gov/iad/894.02/related_projects/muc/muc_sw/muc_sw_manual.html MUC scoring software] | ||
* '''Training data:''' Training section of MUC-7 dataset | * '''Training data:''' Training section of MUC-7 dataset | ||
* '''Dryrun data:''' Dryrun section of MUC-7 dataset | |||
* '''Testing data:''' Formal section of MUC-7 dataset | * '''Testing data:''' Formal section of MUC-7 dataset | ||
| Line 15: | Line 17: | ||
! System name | ! System name | ||
! Short description | ! Short description | ||
! System type (1) | |||
! Main publications | ! Main publications | ||
! Software | ! Software | ||
! Results | ! Results | ||
|- | |- | ||
| | | Annotator | ||
| Human annotator | | Human annotator | ||
| - | |||
| [http://www.itl.nist.gov/iad/894.02/related_projects/muc/proceedings/muc_7_toc.html MUC-7 proceedings] | | [http://www.itl.nist.gov/iad/894.02/related_projects/muc/proceedings/muc_7_toc.html MUC-7 proceedings] | ||
| | | - | ||
| 97.60% | | 97.60% | ||
|- | |- | ||
| LTG | | LTG | ||
| Best MUC-7 participant | | Best MUC-7 participant | ||
| H | |||
| Mikheev, Grover and Moens (1998) | | Mikheev, Grover and Moens (1998) | ||
| | | - | ||
| 93.39% | | 93.39% | ||
|- | |||
| Balie | |||
| Unsupervised approach: no prior training | |||
| U | |||
| Nadeau, Turney and Matwin (2006) | |||
| [http://balie.sourceforge.net sourceforge.net] | |||
| 77.71% (2) | |||
|- | |||
| Baseline | |||
| Vocabulary transfer from training to testing | |||
| S | |||
| Whitelaw and Patrick (2003) | |||
| - | |||
| 58.89% (2) | |||
|- | |- | ||
|} | |} | ||
* (1) '''System type''': R = hand-crafted rules, S = supervised learning, U = unsupervised learning, H = hybrid | |||
* (2) Calculated on Enamex types only. | |||
== References == | == References == | ||
Mikheev, A., Grover, C. | Mikheev, A., Grover, C. and Moens, M. (1998). [http://www-nlpir.nist.gov/related_projects/muc/proceedings/muc_7_proceedings/ltg_muc7.pdf Description of the LTG system used for MUC-7]. ''Proceedings of the Seventh Message Understanding Conference (MUC-7)''. Fairfax, Virginia. | ||
Nadeau, D., Turney, P. D. and Matwin, S. (2006) [http://iit-iti.nrc-cnrc.gc.ca/publications/nrc-48727_e.html Unsupervised Named-Entity Recognition: Generating Gazetteers and Resolving Ambiguity]. ''Proceedings 19th Canadian Conference on Artificial Intelligence''. Québec, Canada. | |||
Whitelaw, C. and Patrick, J. (2003) [http://www.springerlink.com/content/ju66c6a2734fl20u/ Evaluating Corpora for Named Entity Recognition Using Character-Level Features]. ''Proceeding of the 16th Australian Conference on AI''. Perth, Australia. | |||
== See also == | == See also == | ||
| Line 42: | Line 68: | ||
* [[Named Entity Recognition (State of the art)|Named Entity Recognition]] | * [[Named Entity Recognition (State of the art)|Named Entity Recognition]] | ||
* [[State of the art]] | * [[State of the art]] | ||
[[Category:State of the art]] | |||
Latest revision as of 13:51, 7 August 2007
- Performance measure: F = 2 * Precision * Recall / (Recall + Precision)
- Precision: percentage of named entities found by the algorithm that are correct
- Recall: percentage of named entities defined in the corpus that were found by the program
- Exact calculation of precision and recall is explained in the MUC scoring software
- Training data: Training section of MUC-7 dataset
- Dryrun data: Dryrun section of MUC-7 dataset
- Testing data: Formal section of MUC-7 dataset
Table of results
| System name | Short description | System type (1) | Main publications | Software | Results |
|---|---|---|---|---|---|
| Annotator | Human annotator | - | MUC-7 proceedings | - | 97.60% |
| LTG | Best MUC-7 participant | H | Mikheev, Grover and Moens (1998) | - | 93.39% |
| Balie | Unsupervised approach: no prior training | U | Nadeau, Turney and Matwin (2006) | sourceforge.net | 77.71% (2) |
| Baseline | Vocabulary transfer from training to testing | S | Whitelaw and Patrick (2003) | - | 58.89% (2) |
- (1) System type: R = hand-crafted rules, S = supervised learning, U = unsupervised learning, H = hybrid
- (2) Calculated on Enamex types only.
References
Mikheev, A., Grover, C. and Moens, M. (1998). Description of the LTG system used for MUC-7. Proceedings of the Seventh Message Understanding Conference (MUC-7). Fairfax, Virginia.
Nadeau, D., Turney, P. D. and Matwin, S. (2006) Unsupervised Named-Entity Recognition: Generating Gazetteers and Resolving Ambiguity. Proceedings 19th Canadian Conference on Artificial Intelligence. Québec, Canada.
Whitelaw, C. and Patrick, J. (2003) Evaluating Corpora for Named Entity Recognition Using Character-Level Features. Proceeding of the 16th Australian Conference on AI. Perth, Australia.