COLA: Contextualized Commonsense Causal Reasoning from the Causal Inference Perspective

• URL: http://arxiv.org/abs/2305.05191v1
• Date: Tue, 9 May 2023 05:56:58 GMT
• Title: COLA: Contextualized Commonsense Causal Reasoning from the Causal Inference Perspective
• Authors: Zhaowei Wang, Quyet V. Do, Hongming Zhang, Jiayao Zhang, Weiqi Wang, Tianqing Fang, Yangqiu Song, Ginny Y. Wong, Simon See
• Abstract summary: This paper proposes a new task to detect commonsense causation between two events in an event sequence (i.e., context) We also design a zero-shot framework: COLA (Contextualized Commonsense Causality Reasoner) to solve the task from the causal inference perspective. Our extensive experiments show that COLA can detect commonsense causality more accurately than baselines.
• Score: 38.49046289133713
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Detecting commonsense causal relations (causation) between events has long been an essential yet challenging task. Given that events are complicated, an event may have different causes under various contexts. Thus, exploiting context plays an essential role in detecting causal relations. Meanwhile, previous works about commonsense causation only consider two events and ignore their context, simplifying the task formulation. This paper proposes a new task to detect commonsense causation between two events in an event sequence (i.e., context), called contextualized commonsense causal reasoning. We also design a zero-shot framework: COLA (Contextualized Commonsense Causality Reasoner) to solve the task from the causal inference perspective. This framework obtains rich incidental supervision from temporality and balances covariates from multiple timestamps to remove confounding effects. Our extensive experiments show that COLA can detect commonsense causality more accurately than baselines.

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