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arXiv 2008.00563cs.CL
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SemEval-2020任务5:反事实识别

SemEval-2020 Task 5: Counterfactual Recognition

Alibaba Group(阿里巴巴集团);Dalhousie University(达尔豪斯大学)

Xiaoyu Yang, Stephen Obadinma, Huasha Zhao, Qiong Zhang, Stan Matwin, Xiaodan Zhu

摘要:

我们提出了一个反事实识别(CR)任务,即SemEval-2020的共享任务5。反事实描述了由没有发生或不可能发生的行为或情况产生的潜在结果(后果),并且与事实(前因)相反。反事实思维是人类认知系统的一个重要特征,它通过因果关系将前因和后因联系起来。我们的任务提供了一个基准的反事实识别自然语言与两个子任务。子任务1的目的是确定一个给定的句子是否是一个反事实陈述。子任务2要求参与系统提取给定反事实陈述中的前件和后件。在SemEval-2020正式评估期间,我们收到了27份Subtask-1和11份Subtask-2的提交。数据、基线代码和排行榜可以在https://competitions.codalab.org/competitions/21691上找到。数据和基线代码也可在https://zenodo.org/record/3932442上获得。

英文摘要:

We present a counterfactual recognition (CR) task, the shared Task 5 of SemEval-2020. Counterfactuals describe potential outcomes (consequents) produced by actions or circumstances that did not happen or cannot happen and are counter to the facts (antecedent). Counterfactual thinking is an important characteristic of the human cognitive system; it connects antecedents and consequents with causal relations. Our task provides a benchmark for counterfactual recognition in natural language with two subtasks. Subtask-1 aims to determine whether a given sentence is a counterfactual statement or not. Subtask-2 requires the participating systems to extract the antecedent and consequent in a given counterfactual statement. During the SemEval-2020 official evaluation period, we received 27 submissions to Subtask-1 and 11 to Subtask-2. The data, baseline code, and leaderboard can be found at https://competitions.codalab.org/competitions/21691. The data and baseline code are also available at https://zenodo.org/record/3932442.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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