Emotionally Aware or Tone-Deaf? Evaluating Emotional Alignment in LLM-Based Conversational Recommendation Systems

Darshna Parmar, Pramit Mazumdar


Abstract
Recent advances in Large Language Models (LLMs) have enhanced the fluency and coherence of Conversational Recommendation Systems (CRSs), yet emotional intelligence remains a critical gap. In this study, we systematically evaluate the emotional behavior of six state-of-the-art LLMs in CRS settings using the ReDial and INSPIRED datasets. We propose an emotion-aware evaluation framework incorporating metrics such as Emotion Alignment, Emotion Flatness, and per-emotion F1-scores. Our analysis shows that most models frequently default to emotionally flat or mismatched responses, often misaligning with user affect (e.g., joy misread as neutral). We further examine patterns of emotional misalignment and their impact on user-centric qualities such as personalization, justification, and satisfaction. Through qualitative analysis, we demonstrate that emotionally aligned responses enhance user experience, while misalignments lead to loss of trust and relevance. This work highlights the need for emotion-aware design in CRS and provides actionable insights for improving affective sensitivity in LLM-generated recommendations.
Anthology ID:
2025.winlp-main.26
Volume:
Proceedings of the 9th Widening NLP Workshop
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Chen Zhang, Emily Allaway, Hua Shen, Lesly Miculicich, Yinqiao Li, Meryem M'hamdi, Peerat Limkonchotiwat, Richard He Bai, Santosh T.y.s.s., Sophia Simeng Han, Surendrabikram Thapa, Wiem Ben Rim
Venues:
WiNLP | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
167–174
Language:
URL:
https://preview.aclanthology.org/ingest-emnlp/2025.winlp-main.26/
DOI:
Bibkey:
Cite (ACL):
Darshna Parmar and Pramit Mazumdar. 2025. Emotionally Aware or Tone-Deaf? Evaluating Emotional Alignment in LLM-Based Conversational Recommendation Systems. In Proceedings of the 9th Widening NLP Workshop, pages 167–174, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Emotionally Aware or Tone-Deaf? Evaluating Emotional Alignment in LLM-Based Conversational Recommendation Systems (Parmar & Mazumdar, WiNLP 2025)
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PDF:
https://preview.aclanthology.org/ingest-emnlp/2025.winlp-main.26.pdf