30.1333, Calls: Computational Linguistics/Spain

[The LINGUIST List]

LINGUIST List: Vol-30-1333. Sun Mar 24 2019. ISSN: 1069 - 4875.

Subject: 30.1333, Calls: Computational Linguistics/Spain

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Date: Sun, 24 Mar 2019 06:26:19
From: Hortènsia Curell [hortensia.curell at uab.cat]
Subject: Factuality Analysis and Classification Task

 
Full Title: Factuality Analysis and Classification Task 
Short Title: FACT @ IberLEF2019 

Date: 24-Sep-2019 - 27-Sep-2019
Location: Bilbao, Spain 
Contact Person: Aiala Rosá
Meeting Email: aialar at fing.edu.uy
Web Site: https://www.fing.edu.uy/inco/grupos/pln/fact/ 

Linguistic Field(s): Computational Linguistics 

Meeting Description:

FACT - Factuality Analysis and Classification Task  
 
https://www.fing.edu.uy/inco/grupos/pln/fact/
 
The FACT shared task is part of IberLEF 2019 and is organized by Grupo
PLN-InCo (UdelaR - Uruguay), Grupo de Procesamiento del Lenguaje Natural
(FaMAF, UNC, Argentina), and GRIAL (UB-UAB-UDL, España).  

Task description:

In order to analyze event references in texts, it is crucial to determine
whether they are presented as having taken place or as potential or not
accomplished events. This information can be used for different applications
like Question Answering, Information Extraction, or Incremental Timeline
Construction. Despite its centrality for Natural Language Understanding, this
task has been underresearched, with the work by Saurí and Pustejovsky (2009)
as a reference for English and Wonsever et al. (2009) for Spanish. The
bottleneck to advance on this task has usually been the lack of annotated
resources, together with its inherent difficulty. Currently PLN-InCo and GRIAL
both have ongoing research projects on this topic, which are producing and
will produce such annotated resources. This makes the proposal of this task
even more interesting.
Factuality is understood, following Sauri (2008), as the category that
determines the factual status of events, that is, whether events are presented
or not as certain. The goal of this task is the determination of the status of
verb events with respect to factuality in Spanish texts. In this task facts
are not verified in regard to the real world, just assessed with respect to
how they are presented by the source (in this case the writer), that is, the
commitment of the source to the truth-value of the event. In this sense, the
task could be conceived as a core procedure for other tasks such as
fact-checking and fake-news, making it possible, in future tasks, to compare
what is narrated in the text (fact tagging) to what is happening in the world
(fact-checking and fake-news).

For this task, we established three possible categories:

- Facts: current and past situations in the world that are presented as real.
- Counterfacts: current and past situations that the writer presents as not
having happened.
- Undefined: possibilities, future situations, predictions, hypothesis and
other options. Situations presented as uncertain since the writer does not
commit openly to the truth-value either because they have not happened yet or
because the author does not know.

The objective of this task is to automatically propose a factual tag for each
event in the text.



Call for Papers:

Call for Participation: FACT at IberLEF 2019

How to participate:

If you want to participate in this task, please join the Google Group
factiberlef2019. We will be sharing news and important information about the
task in that group. You can find more information in the web page of the task.
 
Important Dates:

- March 18, 2019: team registration page.
- March 25, 2019: release of training data.
- May 20, 2019: release of test data.
- June 3, 2019: results submission page.
- June 10, 2019: publication of results.
- June 17, 2019: working notes paper submission.
- June 24, 2019: notification of acceptance.
- July 1, 2019: camera ready paper submission.
- September 24, 2019: IberLEF 2019 Workshop.




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