Neural Theory-of-Mind? On the Limits of Social Intelligence in Large LMs

Maarten Sap, Ronan Le Bras, Daniel Fried, Yejin Choi


Abstract
Social intelligence and Theory of Mind (TOM), i.e., the ability to reason about the different mental states, intents, and reactions of all people involved, allows humans to effectively navigate and understand everyday social interactions. As NLP systems are used in increasingly complex social situations, their ability to grasp social dynamics becomes crucial. In this work, we examine the open question of social intelligence and Theory of Mind in modern NLP systems from an empirical and theorybased perspective. We show that one of today’s largest language models (GPT-3; Brown et al., 2020) lacks this kind of social intelligence out-of-the box, using two tasks: SocialIQa (Sap et al., 2019), which measure models’ ability to understand intents and reactions of participants of social interactions, and ToMi (Le, Boureau, and Nickel, 2019), which measures whether models can infer mental states and realities of participants of situations. Our results show that models struggle substantially at these Theory of Mind tasks, with well-below-human accuracies of 55% and 60% on SocialIQa and ToMi, respectively. To conclude, we draw on theories from pragmatics to contextualize this shortcoming of large language models, by examining the limitations stemming from their data, neural architecture, and training paradigms. Challenging the prevalent narrative that only scale is needed, we posit that person-centric NLP approaches might be more effective towards neural Theory of Mind.
Anthology ID:
2022.emnlp-main.248
Volume:
Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates
Editors:
Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
3762–3780
Language:
URL:
https://aclanthology.org/2022.emnlp-main.248
DOI:
10.18653/v1/2022.emnlp-main.248
Bibkey:
Cite (ACL):
Maarten Sap, Ronan Le Bras, Daniel Fried, and Yejin Choi. 2022. Neural Theory-of-Mind? On the Limits of Social Intelligence in Large LMs. In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, pages 3762–3780, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
Cite (Informal):
Neural Theory-of-Mind? On the Limits of Social Intelligence in Large LMs (Sap et al., EMNLP 2022)
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PDF:
https://aclanthology.org/2022.emnlp-main.248.pdf