When did you become so smart, oh wise one?! Sarcasm Explanation in Multi-modal Multi-party Dialogues

• URL: http://arxiv.org/abs/2203.06419v1
• Date: Sat, 12 Mar 2022 12:16:07 GMT
• Title: When did you become so smart, oh wise one?! Sarcasm Explanation in Multi-modal Multi-party Dialogues
• Authors: Shivani Kumar, Atharva Kulkarni, Md Shad Akhtar, Tanmoy Chakraborty
• Abstract summary: We study the discourse structure of sarcastic conversations and propose a novel task - Sarcasm Explanation in Dialogue (SED) SED aims to generate natural language explanations of satirical conversations. We propose MAF, a multimodal context-aware attention and global information fusion module to capture multimodality and use it to benchmark WITS.
• Score: 27.884015521888458
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Indirect speech such as sarcasm achieves a constellation of discourse goals in human communication. While the indirectness of figurative language warrants speakers to achieve certain pragmatic goals, it is challenging for AI agents to comprehend such idiosyncrasies of human communication. Though sarcasm identification has been a well-explored topic in dialogue analysis, for conversational systems to truly grasp a conversation's innate meaning and generate appropriate responses, simply detecting sarcasm is not enough; it is vital to explain its underlying sarcastic connotation to capture its true essence. In this work, we study the discourse structure of sarcastic conversations and propose a novel task - Sarcasm Explanation in Dialogue (SED). Set in a multimodal and code-mixed setting, the task aims to generate natural language explanations of satirical conversations. To this end, we curate WITS, a new dataset to support our task. We propose MAF (Modality Aware Fusion), a multimodal context-aware attention and global information fusion module to capture multimodality and use it to benchmark WITS. The proposed attention module surpasses the traditional multimodal fusion baselines and reports the best performance on almost all metrics. Lastly, we carry out detailed analyses both quantitatively and qualitatively.

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