Difference between revisions of "Temporal Information Extraction (State of the art)"

From ACL Wiki
Jump to navigation Jump to search
m (Consolidates notes about only showing the best result for each system)
(Uses Wikipedia <ref> tags)
Line 40: Line 40:
 
| HeidelTime (t)
 
| HeidelTime (t)
 
| rule-based
 
| rule-based
−
| Stro ̈tgen et al., 2013
+
| <ref name="Stroetgen-2013">Stro ̈tgen, J., Zell, J., and Gertz, M. [http://www.aclweb.org/anthology/S/S13/S13-2003.pdf Heideltime: Tuning english and developing spanish resources for tempeval-3]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 15–19.</ref>
 
| 83.85
 
| 83.85
 
| 78.99
 
| 78.99
Line 55: Line 55:
 
| NavyTime (1,2)
 
| NavyTime (1,2)
 
| rule-based
 
| rule-based
−
| Chambers, 2013
+
| <ref name="Chambers-2013">Chambers, N. [http://www.aclweb.org/anthology/S/S13/S13-2012.pdf Navytime: Event and time ordering from raw text]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 73–77.</ref>
 
| 78.72
 
| 78.72
 
| '''80.43'''
 
| '''80.43'''
Line 70: Line 70:
 
| ManTIME (4)
 
| ManTIME (4)
 
| CRF, probabilistic post-processing pipeline, rule-based normaliser
 
| CRF, probabilistic post-processing pipeline, rule-based normaliser
−
| Filannino et al., 2013
+
| <ref name="Filannino-2013">Filannino, M., Brown, G., and Nenadic, G. [http://www.aclweb.org/anthology/S/S13/S13-2009.pdf ManTIME: Temporal expression identification and normalization in the Tempeval-3 challenge]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evalu- ation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 53–57.</ref>
 
| 78.86
 
| 78.86
 
| 70.29
 
| 70.29
Line 85: Line 85:
 
| SUTime
 
| SUTime
 
| deterministic rule-based
 
| deterministic rule-based
−
| Chang et al., 2013
+
| <ref name="Chang-2013">Chang, A., and Manning, C. D. [http://www.aclweb.org/anthology/S/S13/S13-2013.pdf SUTime: Evaluation in TempEval-3]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 78–82.</ref>
 
| 78.72
 
| 78.72
 
| '''80.43'''
 
| '''80.43'''
Line 100: Line 100:
 
| ATT (2)
 
| ATT (2)
 
| MaxEnt, third party normalisers
 
| MaxEnt, third party normalisers
−
| Jung et al., 2013
+
| <ref name="Jung-2013">Jung, H., and Stent, A. [http://www.aclweb.org/anthology/S/S13/S13-2004.pdf ATT1: Temporal annotation using big windows and rich syntactic and semantic features]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 20–24.</ref>
 
| '''90.57'''
 
| '''90.57'''
 
| 69.57
 
| 69.57
Line 115: Line 115:
 
| ClearTK (1,2)
 
| ClearTK (1,2)
 
| SVM, Logistic Regression, third party normaliser
 
| SVM, Logistic Regression, third party normaliser
−
| Bethard, 2013
+
| <ref name="Bethard-2013">Bethard, S. [http://www.aclweb.org/anthology/S/S13/S13-2002.pdf ClearTK-TimeML: A minimalist approach to tempeval 2013]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), vol. 2, Association for Computational Linguistics, Association for Computational Linguistics, pp. 10–14.</ref>
 
| 85.94
 
| 85.94
 
| 79.71
 
| 79.71
Line 130: Line 130:
 
| JU-CSE
 
| JU-CSE
 
| CRF, rule-based normaliser
 
| CRF, rule-based normaliser
−
| Kolya et al., 2013
+
| <ref name="Kolya-2013">Kolya, A. K., Kundu, A., Gupta, R., Ekbal, A., and Bandyopadhyay, S. [http://www.aclweb.org/anthology/S/S13/S13-2011.pdf JU_CSE: A CRF based approach to annotation of temporal expression, event and temporal relations]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 64–72.</ref>
 
| 81.51
 
| 81.51
 
| 70.29
 
| 70.29
Line 145: Line 145:
 
| KUL (2)
 
| KUL (2)
 
| Logistic regression, post-processing, rule-based normaliser
 
| Logistic regression, post-processing, rule-based normaliser
−
| Kolomiyets et al., 2013
+
| <ref name="Kolomiyets-2013">Kolomiyets, O., and Moens, M.-F. [http://www.aclweb.org/anthology/S/S13/S13-2014.pdf KUL: Data-driven approach to temporal parsing of newswire articles]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceed- ings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 83–87.</ref>
 
| 76.99
 
| 76.99
 
| 63.04
 
| 63.04
Line 160: Line 160:
 
| FSS-TimEx
 
| FSS-TimEx
 
| rule-based
 
| rule-based
−
| Zavarella et al., 2013
+
| <ref name="Zavarella-2013">Zavarella, V., and Tanev, H. [http://www.aclweb.org/anthology/S/S13/S13-2010.pdf FSS-TimEx for tempeval-3: Extracting temporal information from text]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 58–63.</ref>
 
| 52.03
 
| 52.03
 
| 46.38
 
| 46.38
Line 199: Line 199:
 
| ATT (1)
 
| ATT (1)
 
|  
 
|  
−
| Jung et al., 2013
+
| <ref name="Jung-2013"/>
 
| 81.44
 
| 81.44
 
| 80.67
 
| 80.67
Line 212: Line 212:
 
| KUL (2)
 
| KUL (2)
 
|  
 
|  
−
| Kolomiyets et al., 2013
+
| <ref name="Kolomiyets-2013"/>
 
| 80.69
 
| 80.69
 
| 77.99
 
| 77.99
Line 225: Line 225:
 
| ClearTK (4)
 
| ClearTK (4)
 
|  
 
|  
−
| Bethard, 2013
+
| <ref name="Bethard-2013"/>
 
| 81.40
 
| 81.40
 
| 76.38
 
| 76.38
Line 238: Line 238:
 
| NavyTime (1)
 
| NavyTime (1)
 
|  
 
|  
−
| Chambers, 2013
+
| <ref name="Chambers-2013"/>
 
| 80.73
 
| 80.73
 
| 79.87
 
| 79.87
Line 264: Line 264:
 
| JU_CSE
 
| JU_CSE
 
|  
 
|  
−
| Kolya et al., 2013
+
| <ref name="Kolya-2013"/>
 
| 80.85
 
| 80.85
 
| 76.51
 
| 76.51
Line 277: Line 277:
 
| FSS-TimeEx
 
| FSS-TimeEx
 
|  
 
|  
−
| Zavarella et al., 2013
+
| <ref name="Zavarella-2013"/>
 
| 63.13
 
| 63.13
 
| 67.11
 
| 67.11
Line 607: Line 607:
  
 
==References==
 
==References==
 +
<references/>
  
 +
Unsorted
 
* UzZaman, N., Llorens, H., Derczynski, L., Allen, J., Verhagen, M., and Pustejovsky, J. [http://www.aclweb.org/anthology/S/S13/S13-2001.pdf Semeval-2013 task 1: Tempeval-3: Evaluating time expressions, events, and temporal relations]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 1–9.
 
* UzZaman, N., Llorens, H., Derczynski, L., Allen, J., Verhagen, M., and Pustejovsky, J. [http://www.aclweb.org/anthology/S/S13/S13-2001.pdf Semeval-2013 task 1: Tempeval-3: Evaluating time expressions, events, and temporal relations]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 1–9.
−
* Bethard, S. [http://www.aclweb.org/anthology/S/S13/S13-2002.pdf ClearTK-TimeML: A minimalist approach to tempeval 2013]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), vol. 2, Association for Computational Linguistics, Association for Computational Linguistics, pp. 10–14.
 
−
* Stro ̈tgen, J., Zell, J., and Gertz, M. [http://www.aclweb.org/anthology/S/S13/S13-2003.pdf Heideltime: Tuning english and developing spanish resources for tempeval-3]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 15–19.
 
−
* Jung, H., and Stent, A. [http://www.aclweb.org/anthology/S/S13/S13-2004.pdf ATT1: Temporal annotation using big windows and rich syntactic and semantic features]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 20–24.
 
−
* Filannino, M., Brown, G., and Nenadic, G. [http://www.aclweb.org/anthology/S/S13/S13-2009.pdf ManTIME: Temporal expression identification and normalization in the Tempeval-3 challenge]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evalu- ation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 53–57.
 
−
* Zavarella, V., and Tanev, H. [http://www.aclweb.org/anthology/S/S13/S13-2010.pdf FSS-TimEx for tempeval-3: Extracting temporal information from text]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 58–63.
 
−
* Kolya, A. K., Kundu, A., Gupta, R., Ekbal, A., and Bandyopadhyay, S. [http://www.aclweb.org/anthology/S/S13/S13-2011.pdf JU_CSE: A CRF based approach to annotation of temporal expression, event and temporal relations]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 64–72.
 
−
* Chambers, N. [http://www.aclweb.org/anthology/S/S13/S13-2012.pdf Navytime: Event and time ordering from raw text]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 73–77.
 
−
* Chang, A., and Manning, C. D. [http://www.aclweb.org/anthology/S/S13/S13-2013.pdf SUTime: Evaluation in TempEval-3]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 78–82.
 
−
* Kolomiyets, O., and Moens, M.-F. [http://www.aclweb.org/anthology/S/S13/S13-2014.pdf KUL: Data-driven approach to temporal parsing of newswire articles]. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceed- ings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 83–87.
 
 
* Laokulrat, N., Miwa, M., Tsuruoka, Y., and Chikayama, T. [http://www.aclweb.org/anthology/S/S13/S13-2015.pdf UTTime: Temporal relation classification using deep syntactic features]. In Second Joint Conference on Lexical and Computational Se- mantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 88– 92.
 
* Laokulrat, N., Miwa, M., Tsuruoka, Y., and Chikayama, T. [http://www.aclweb.org/anthology/S/S13/S13-2015.pdf UTTime: Temporal relation classification using deep syntactic features]. In Second Joint Conference on Lexical and Computational Se- mantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 88– 92.
  

Revision as of 12:25, 30 March 2015

TempEval 2007

  • TempEval, Temporal Relation Identification, 2007: web page

TempEval 2010

  • TempEval-2, Evaluating Events, Time Expressions, and Temporal Relations, 2010: web page

TempEval 2013

  • TempEval-3, Evaluating Time Expressions, Events, and Temporal Relations, 2013: web page

Performance measures

Results

Tables show the best result for each system. Lower scoring runs for the same system are not shown.

Task A: Temporal expression extraction and normalisation

System name (best run) Short description Main publication Identification Normalisation Overall score Software License
Strict matching Lenient matching Accuracy
Pre. Rec. F1 Pre. Rec. F1 Type Value
HeidelTime (t) rule-based [1] 83.85 78.99 81.34 93.08 87.68 90.30 90.91 85.95 77.61 Download GNU GPL v3
NavyTime (1,2) rule-based [2] 78.72 80.43 79.57 89.36 91.30 90.32 88.90 78.58 70.97 - -
ManTIME (4) CRF, probabilistic post-processing pipeline, rule-based normaliser [3] 78.86 70.29 74.33 95.12 84.78 89.66 86.31 76.92 68.97 Demo & Download GNU GPL v2
SUTime deterministic rule-based [4] 78.72 80.43 79.57 89.36 91.30 90.32 88.90 74.60 67.38 Demo & Download GNU GPL v2
ATT (2) MaxEnt, third party normalisers [5] 90.57 69.57 78.69 98.11 75.36 85.25 91.34 76.91 65.57 - -
ClearTK (1,2) SVM, Logistic Regression, third party normaliser [6] 85.94 79.71 82.71 93.75 86.96 90.23 93.33 71.66 64.66 Download BSD-3 Clause
JU-CSE CRF, rule-based normaliser [7] 81.51 70.29 75.49 93.28 80.43 86.38 87.39 73.87 63.81 - -
KUL (2) Logistic regression, post-processing, rule-based normaliser [8] 76.99 63.04 69.32 92.92 76.09 83.67 88.56 75.24 62.95 - -
FSS-TimEx rule-based [9] 52.03 46.38 49.04 90.24 80.43 85.06 81.08 68.47 58.24 - -

Task B: Event extraction and classification

System name (best run) Short description Main publication Identification Attributes Overall score Software License
Strict matching Accuracy
Pre. Rec. F1 Class Tense Aspect
ATT (1) [5] 81.44 80.67 81.05 88.69 73.37 90.68 71.88
KUL (2) [8] 80.69 77.99 79.32 88.46 - - 70.17
ClearTK (4) [6] 81.40 76.38 78.81 86.12 78.20 90.86 67.87 Download BSD-3 Clause
NavyTime (1) [2] 80.73 79.87 80.30 84.03 75.79 91.26 67.48
Temp: (ESAfeature) X, 2013 78.33 61.61 68.97 79.09 - - 54.55
JU_CSE [7] 80.85 76.51 78.62 67.02 74.56 91.76 52.69
FSS-TimeEx [9] 63.13 67.11 65.06 66.00 - - 42.94

Task C: Annotating relations given gold entities

Task C relation only: Annotating relations given gold entities and related pairs

Task ABC: Temporal awareness evaluation

Clinical TempEval 2015

  • Clinical TempEval 2015, Clinical TempEval, 2015: web page

Performance measures

Results

Tables show the best result for each system. Lower scoring runs for the same system are not shown.

Time expressions

System name (best run) Short description Main publication Span Class Software License
P R F1 P R F1 A
Baseline: memorize - - 0.743 0.372 0.496 0.723 0.362 0.483 0.974 - -
KPSCMI: run 1 Rule-based - 0.272 0.782 0.404 0.223 0.642 0.331 0.819 - -
KPSCMI: run 3 Supervised machine learning - 0.693 0.706 0.699 0.657 0.669 0.663 0.948 - -
UFPRSheffield-SVM: run 2 Supervised machine learning - 0.741 0.655 0.695 0.723 0.640 0.679 0.977 - -
UFPRSheffield-Hynx: run 5 Rule-based - 0.411 0.795 0.542 0.391 0.756 0.516 0.952 - -
BluLab: run 1-3 Supervised machine learning - 0.797 0.664 0.725 0.778 0.652 0.709 0.978 - -

Event expressions

System name (best run) Short description Main publication Span Modality Degree Polarity Type Software License
P R F1 P R F1 A P R F1 A P R F1 A P R F1 A
Baseline Memorize - 0.876 0.810 0.842 0.810 0.749 0.778 0.924 0.871 0.806 0.838 0.995 0.800 0.740 0.769 0.913 0.846 0.783 0.813 0.966 - -
BluLab: run 1-3 Supervised machine learning - 0.887 0.864 0.875 0.834 0.813 0.824 0.942 0.882 0.859 0.870 0.994 0.868 0.846 0.857 0.979 0.834 0.812 0.823 0.941 - -

Temporal relations

System name (best run) Short description Main publication To Document Time Narrative Containers Software License
P R F1 P R F1 P R F1
Phase 1: text only
Baseline Memorize - 0.600 0.555 0.577 - - - - - - - -
Baseline TIMEX3 to closest EVENT - - - - 0.368 0.061 0.104 0.400 0.061 0.106 - -
BluLab: run 2 Supervised machine learning - 0.712 0.693 0.702 0.080 0.142 0.102 0.094 0.179 0.123 - -
Phase 2: manual EVENTs and TIMEX3s
Baseline Memorize - - - 0.608 - - - - - - - -
Baseline TIMEX3 to closest EVENT - - - - 0.433 0.162 0.235 0.469 0.162 0.240 - -
BluLab: run 2 Supervised machine learning - - - 0.791 0.109 0.210 0.143 0.140 0.254 0.181 - -

References

  1. ↑ Stro ̈tgen, J., Zell, J., and Gertz, M. Heideltime: Tuning english and developing spanish resources for tempeval-3. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 15–19.
  2. ↑ 2.0 2.1 Chambers, N. Navytime: Event and time ordering from raw text. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 73–77.
  3. ↑ Filannino, M., Brown, G., and Nenadic, G. ManTIME: Temporal expression identification and normalization in the Tempeval-3 challenge. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evalu- ation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 53–57.
  4. ↑ Chang, A., and Manning, C. D. SUTime: Evaluation in TempEval-3. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 78–82.
  5. ↑ 5.0 5.1 Jung, H., and Stent, A. ATT1: Temporal annotation using big windows and rich syntactic and semantic features. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 20–24.
  6. ↑ 6.0 6.1 Bethard, S. ClearTK-TimeML: A minimalist approach to tempeval 2013. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), vol. 2, Association for Computational Linguistics, Association for Computational Linguistics, pp. 10–14.
  7. ↑ 7.0 7.1 Kolya, A. K., Kundu, A., Gupta, R., Ekbal, A., and Bandyopadhyay, S. JU_CSE: A CRF based approach to annotation of temporal expression, event and temporal relations. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 64–72.
  8. ↑ 8.0 8.1 Kolomiyets, O., and Moens, M.-F. KUL: Data-driven approach to temporal parsing of newswire articles. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceed- ings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 83–87.
  9. ↑ 9.0 9.1 Zavarella, V., and Tanev, H. FSS-TimEx for tempeval-3: Extracting temporal information from text. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 58–63.

Unsorted

  • UzZaman, N., Llorens, H., Derczynski, L., Allen, J., Verhagen, M., and Pustejovsky, J. Semeval-2013 task 1: Tempeval-3: Evaluating time expressions, events, and temporal relations. In Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 1–9.
  • Laokulrat, N., Miwa, M., Tsuruoka, Y., and Chikayama, T. UTTime: Temporal relation classification using deep syntactic features. In Second Joint Conference on Lexical and Computational Se- mantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) (Atlanta, Georgia, USA, June 2013), Association for Computational Linguistics, pp. 88– 92.

See also

External links

Retrieved from "https://aclweb.org/aclwiki/index.php?title=Temporal_Information_Extraction_(State_of_the_art)&oldid=11015"