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arXiv · 2507.22289

Intent Recognition and Out-of-Scope Detection using LLMs in Multi-party Conversations

Galo Castillo-López·Gaël de Chalendar·Nasredine Semmar
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Abstract

Intent recognition is a fundamental component in task-oriented dialogue systems (TODS). Determining user intents and detecting whether an intent is Out-of-Scope (OOS) is crucial for TODS to provide reliable responses. However, traditional TODS require large amount of annotated data. In this work we propose a hybrid approach to combine BERT and LLMs in zero and few-shot settings to recognize intents and detect OOS utterances. Our approach leverages LLMs generalization power and BERT's computational efficiency in such scenarios. We evaluate our method on multi-party conversation corpora and observe that sharing information from BERT outputs to LLMs leads to system performance improvement.

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Galo Castillo-López, Gaël de Chalendar, Nasredine Semmar. 2025-07-29. Intent Recognition and Out-of-Scope Detection using LLMs in Multi-party Conversations. https://arxiv.org/abs/2507.22289

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