基于主模态增强与多阶段融合的鲁棒多模态情感分析方法

By constructing a robust multimodal sentiment analysis method that combines main modality enhancement and multi-stage fusion, the performance degradation problem of multimodal sentiment analysis under modality loss and noise interference is solved, and stable sentiment recognition and feature discrimination are achieved in complex scenarios.

CN122173655BActive Publication Date: 2026-07-17EAST CHINA JIAOTONG UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA JIAOTONG UNIVERSITY
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing multimodal sentiment analysis methods suffer from performance degradation in scenarios with missing modalities and noise interference. They lack systematic missing modality compensation and noise suppression mechanisms, have insufficient dynamic adaptation capabilities of the main modality, and their multimodal fusion is not deep enough, making it difficult to maintain stable sentiment recognition performance across all scenarios.

Method used

We construct a robust multimodal sentiment analysis method based on master modality enhancement and multi-stage fusion, including an embedded encoder, an integrity-checking encoder, a text-guided cross-modal collaborative enhancer, a hierarchical conditional cue generator, a weighted fusion generator, and a modality-specific reconstructor. Through multi-stage processing, we improve the robustness and adaptability of the model.

Benefits of technology

It effectively solves the feature processing problem when the main modality is missing, realizes lightweight semantic compensation and feature representation quality assurance, improves the adaptability and robustness of the model in complex scenarios, and significantly enhances the discriminative ability of cross-modal features.

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Abstract

本发明提出一种基于主模态增强与多阶段融合的鲁棒多模态情感分析方法,该方法包括:利用嵌入编码器对含噪声输入提取统一特征,利用完整性检查编码器对统一特征中的文本模态特征进行完整性评估;利用文本引导的跨模态协同增强器对统一特征进行增强处理;利用层次化条件提示生成器对统一特征进行增强处理,并通过文本完整性得分调节权重;将全局情感特征输入至全连接层与分类器中,得到情感概率分布,并利用模态专属重构器从含噪声输入中恢复完整特征。本发明通过文本引导的跨模态协同增强器与层次化条件提示生成器的互补设计,分别适配主模态完整与缺失场景,有效解决了传统方法在主模态自身缺失时难以精准处理的核心痛点。
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