意图识别

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泛化性暴涨47%!首个意图检测奖励范式,AI工具爆炸时代意图识别新解法
机器之心· 2025-05-16 04:39
Core Viewpoint - The rapid development of large language models (LLMs) and the explosion of integrable tools have significantly enhanced the convenience of AI assistants in daily life, but the challenges of intent detection and generalization remain critical issues [1][2]. Group 1: Research and Methodology - Tencent's PCG social line research team has innovatively applied reinforcement learning (RL) methods, specifically the Group Relative Policy Optimization (GRPO) algorithm combined with Reward-based Curriculum Sampling (RCS), to improve intent detection tasks [2]. - The research demonstrated that models trained with RL exhibit significantly better generalization capabilities compared to those trained with supervised fine-tuning (SFT), particularly in handling unseen intents and cross-lingual tasks [4]. - The introduction of a thought process during RL training has been shown to enhance the model's generalization ability in complex intent detection tasks [5]. Group 2: Experimental Results - The experiments revealed that the GRPO method outperformed the SFT method in terms of generalization performance across various datasets, including MultiWOZ2.2 and a self-built Chinese dataset, TODAssistant [17]. - The GRPO method achieved comparable performance to SFT on the MultiWOZ2.2 dataset, indicating its effectiveness in intent detection tasks [14]. - The results from the experiments indicated that the GRPO method, when combined with RCS, further improved the model's accuracy, especially in the second phase of curriculum learning [19]. Group 3: Future Directions - The research team plans to explore more efficient online data filtering methods for the RCS approach in future work [24]. - There is an intention to investigate multi-intent recognition, as current experiments primarily focus on single-intent scenarios [25]. - The team aims to extend their research to more complex task-oriented dialogue tasks beyond intent recognition [26].