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arXiv 2501.06475cs.CVcs.LG

通过半监督聚类增强多模态视频情感分类

Enhancing Multi-Modal Video Sentiment Classification Through Semi-Supervised Clustering

Viterbi School of Engineering(维特比工程学院);University of Southern California(南加州大学)

Mehrshad Saadatinia, Minoo Ahmadi, Armin Abdollahi

AI总结:

针对视频情感分类依赖大量标注数据的问题,提出结合聚类半监督预训练与监督微调的多模态方法,利用视频、文本及声学特征提升分类效果,尤其适用于标注数据有限的场景。

摘要:

理解视频中的情感是一项具有挑战性的任务。不过,视频包含多种模态,是机器学习和深度学习任务的丰富数据来源。在本研究中,我们旨在通过聚焦两个核心维度——视频本身、配套文本及声学特征——来提升视频情感分类效果。为解决依赖大规模标注数据集的局限性,我们提出一种基于聚类的半监督预训练方法,用于从数据中提取有意义的表征。该预训练步骤可识别视频与文本数据中的模式,使模型无需初始阶段的大量标注信息就能学习数据的底层结构与关联。在建立这些模式后,我们以监督方式对系统进行微调,以分类视频中表达的情感。我们认为,这种结合聚类与监督微调的多模态方法,将实现更准确、更具洞察力的情感分类,尤其适用于标注数据有限的场景。

英文摘要:

Understanding emotions in videos is a challenging task. However, videos contain several modalities which make them a rich source of data for machine learning and deep learning tasks. In this work, we aim to improve video sentiment classification by focusing on two key aspects: the video itself, the accompanying text, and the acoustic features. To address the limitations of relying on large labeled datasets, we are developing a method that utilizes clustering-based semi-supervised pre-training to extract meaningful representations from the data. This pre-training step identifies patterns in the video and text data, allowing the model to learn underlying structures and relationships without requiring extensive labeled information at the outset. Once these patterns are established, we fine-tune the system in a supervised manner to classify the sentiment expressed in videos. We believe that this multi-modal approach, combining clustering with supervised fine-tuning, will lead to more accurate and insightful sentiment classification, especially in cases where labeled data is limited.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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