The Difficult Case of Intended and Perceived Sarcasm: a Challenge for Humans and Large Language Models

Hyewon Jang, Diego Frassinelli


Abstract
We examine the cases of failed communication in sarcasm, defined as ‘the discrepancy between what speakers and observers perceive as sarcasm’. We identify factors that are associated with such failures, and how those difficult instances affect the detection performance of encoder-only and decoder-only generative models. We find that speakers’ incongruity between their felt annoyance and sarcasm in their utterance is highly correlated with sarcasm that fails to be communicated to human observers. This factor also relates to the drop of classification performance of large language models (LLMs). Additionally, disagreement among multiple observers about sarcasm is correlated with poorer performance of LLMs. Finally, we find that generative models produce better results with ground-truth labels from speakers than from observers, in contrast to encoder-only models, which suggests a general tendency by generative models to identify with speakers’ perspective by default.
Anthology ID:
2025.iwcs-1.24
Volume:
Proceedings of the 16th International Conference on Computational Semantics
Month:
September
Year:
2025
Address:
Düsseldorf, Germany
Editors:
Kilian Evang, Laura Kallmeyer, Sylvain Pogodalla
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IWCS | WS
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Publisher:
Association for Computational Linguistics
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Pages:
279–291
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URL:
https://preview.aclanthology.org/iwcs-25-ingestion/2025.iwcs-1.24/
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Cite (ACL):
Hyewon Jang and Diego Frassinelli. 2025. The Difficult Case of Intended and Perceived Sarcasm: a Challenge for Humans and Large Language Models. In Proceedings of the 16th International Conference on Computational Semantics, pages 279–291, Düsseldorf, Germany. Association for Computational Linguistics.
Cite (Informal):
The Difficult Case of Intended and Perceived Sarcasm: a Challenge for Humans and Large Language Models (Jang & Frassinelli, IWCS 2025)
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https://preview.aclanthology.org/iwcs-25-ingestion/2025.iwcs-1.24.pdf