@inproceedings{ishikawa-yoshino-2025-ai,
title = "{AI} with Emotions: Exploring Emotional Expressions in Large Language Models",
author = "Ishikawa, Shin-nosuke and
Yoshino, Atsushi",
editor = {H{\"a}m{\"a}l{\"a}inen, Mika and
{\"O}hman, Emily and
Bizzoni, Yuri and
Miyagawa, So and
Alnajjar, Khalid},
booktitle = "Proceedings of the 5th International Conference on Natural Language Processing for Digital Humanities",
month = may,
year = "2025",
address = "Albuquerque, USA",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2025.nlp4dh-1.51/",
doi = "10.18653/v1/2025.nlp4dh-1.51",
pages = "614--627",
ISBN = "979-8-89176-234-3",
abstract = "The human-level performance of Large Language Models (LLMs) across various tasks has raised expectations for the potential of artificial intelligence (AI) to possess emotions someday. To explore the capability of current LLMs to express emotions in their outputs, we conducted an experiment using several LLMs (OpenAI GPT, Google Gemini, Meta Llama3, and Cohere Command R+) to role-play as agents answering questions with specified emotional states. We defined the emotional states using Russell{'}s Circumplex model, a well-established framework that characterizes emotions along the sleepy-activated (arousal) and pleasure-displeasure (valence) axes. We chose this model for its simplicity, utilizing two continuous parameters, which allows for better controllability in applications involving continuous changes in emotional states. The responses generated were evaluated using a sentiment analysis model, independent of the LLMs, trained on the GoEmotions dataset. The evaluation showed that the emotional states of the generated answers were consistent with the specifications, demonstrating the LLMs' capability for emotional expression. This indicates the potential for LLM-based"
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<abstract>The human-level performance of Large Language Models (LLMs) across various tasks has raised expectations for the potential of artificial intelligence (AI) to possess emotions someday. To explore the capability of current LLMs to express emotions in their outputs, we conducted an experiment using several LLMs (OpenAI GPT, Google Gemini, Meta Llama3, and Cohere Command R+) to role-play as agents answering questions with specified emotional states. We defined the emotional states using Russell’s Circumplex model, a well-established framework that characterizes emotions along the sleepy-activated (arousal) and pleasure-displeasure (valence) axes. We chose this model for its simplicity, utilizing two continuous parameters, which allows for better controllability in applications involving continuous changes in emotional states. The responses generated were evaluated using a sentiment analysis model, independent of the LLMs, trained on the GoEmotions dataset. The evaluation showed that the emotional states of the generated answers were consistent with the specifications, demonstrating the LLMs’ capability for emotional expression. This indicates the potential for LLM-based</abstract>
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%0 Conference Proceedings
%T AI with Emotions: Exploring Emotional Expressions in Large Language Models
%A Ishikawa, Shin-nosuke
%A Yoshino, Atsushi
%Y Hämäläinen, Mika
%Y Öhman, Emily
%Y Bizzoni, Yuri
%Y Miyagawa, So
%Y Alnajjar, Khalid
%S Proceedings of the 5th International Conference on Natural Language Processing for Digital Humanities
%D 2025
%8 May
%I Association for Computational Linguistics
%C Albuquerque, USA
%@ 979-8-89176-234-3
%F ishikawa-yoshino-2025-ai
%X The human-level performance of Large Language Models (LLMs) across various tasks has raised expectations for the potential of artificial intelligence (AI) to possess emotions someday. To explore the capability of current LLMs to express emotions in their outputs, we conducted an experiment using several LLMs (OpenAI GPT, Google Gemini, Meta Llama3, and Cohere Command R+) to role-play as agents answering questions with specified emotional states. We defined the emotional states using Russell’s Circumplex model, a well-established framework that characterizes emotions along the sleepy-activated (arousal) and pleasure-displeasure (valence) axes. We chose this model for its simplicity, utilizing two continuous parameters, which allows for better controllability in applications involving continuous changes in emotional states. The responses generated were evaluated using a sentiment analysis model, independent of the LLMs, trained on the GoEmotions dataset. The evaluation showed that the emotional states of the generated answers were consistent with the specifications, demonstrating the LLMs’ capability for emotional expression. This indicates the potential for LLM-based
%R 10.18653/v1/2025.nlp4dh-1.51
%U https://aclanthology.org/2025.nlp4dh-1.51/
%U https://doi.org/10.18653/v1/2025.nlp4dh-1.51
%P 614-627
Markdown (Informal)
[AI with Emotions: Exploring Emotional Expressions in Large Language Models](https://aclanthology.org/2025.nlp4dh-1.51/) (Ishikawa & Yoshino, NLP4DH 2025)
ACL