Dynamic Parameter Memory: Temporary LoRA-Enhanced LLM for Long-Sequence Emotion Recognition in Conversation

Fuente: arXiv
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Hauptverfasser: Mai, Jialong, Xing, Xiaofen, Li, Yawei, Chen, Weidong, Li, Zhipeng, Xing, Jingyuan, Xu, Xiangmin
Format: Preprint
Veröffentlicht: 2025
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author Mai, Jialong
Xing, Xiaofen
Li, Yawei
Chen, Weidong
Li, Zhipeng
Xing, Jingyuan
Xu, Xiangmin
author_facet Mai, Jialong
Xing, Xiaofen
Li, Yawei
Chen, Weidong
Li, Zhipeng
Xing, Jingyuan
Xu, Xiangmin
contents Recent research has focused on applying speech large language model (SLLM) to improve speech emotion recognition (SER). However, the inherently high frame rate in speech modality severely limits the signal processing and understanding capabilities of SLLM. For example, a SLLM with a 4K context window can only process 80 seconds of audio at 50Hz feature sampling rate before reaching its capacity limit. Input token compression methods used in SLLM overlook the continuity and inertia of emotions across multiple conversation turns. This paper proposes a Dynamic Parameter Memory (DPM) mechanism with contextual semantics and sentence-level emotion encoding, enabling processing of unlimited-length audio with limited context windows in SLLM. Specifically, DPM progressively encodes sentence-level information and emotions into a temporary LoRA module during inference to effectively "memorize" the contextual information. We trained an emotion SLLM as a backbone and incorporated our DPM into inference for emotion recognition in conversation (ERC). Experimental results on the IEMOCAP dataset show that DPM significantly improves the emotion recognition capabilities of SLLM when processing long audio sequences, achieving state-of-the-art performance.
format Preprint
id arxiv_https___arxiv_org_abs_2507_09076
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dynamic Parameter Memory: Temporary LoRA-Enhanced LLM for Long-Sequence Emotion Recognition in Conversation
Mai, Jialong
Xing, Xiaofen
Li, Yawei
Chen, Weidong
Li, Zhipeng
Xing, Jingyuan
Xu, Xiangmin
Computation and Language
Artificial Intelligence
68T50
I.2.7; H.5.2
Recent research has focused on applying speech large language model (SLLM) to improve speech emotion recognition (SER). However, the inherently high frame rate in speech modality severely limits the signal processing and understanding capabilities of SLLM. For example, a SLLM with a 4K context window can only process 80 seconds of audio at 50Hz feature sampling rate before reaching its capacity limit. Input token compression methods used in SLLM overlook the continuity and inertia of emotions across multiple conversation turns. This paper proposes a Dynamic Parameter Memory (DPM) mechanism with contextual semantics and sentence-level emotion encoding, enabling processing of unlimited-length audio with limited context windows in SLLM. Specifically, DPM progressively encodes sentence-level information and emotions into a temporary LoRA module during inference to effectively "memorize" the contextual information. We trained an emotion SLLM as a backbone and incorporated our DPM into inference for emotion recognition in conversation (ERC). Experimental results on the IEMOCAP dataset show that DPM significantly improves the emotion recognition capabilities of SLLM when processing long audio sequences, achieving state-of-the-art performance.
title Dynamic Parameter Memory: Temporary LoRA-Enhanced LLM for Long-Sequence Emotion Recognition in Conversation
topic Computation and Language
Artificial Intelligence
68T50
I.2.7; H.5.2
url https://arxiv.org/abs/2507.09076