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arXiv 2403.07581cs.CL

大语言模型还是小模型?基于大语言模型文本增强的人格检测模型

LLMvsSmall Model? Large Language Model Based Text Augmentation Enhanced Personality Detection Model

Beijing Institute of Technology(北京理工大学);Beijing University of Posts and Telecommunications(北京邮电大学);Harbin Institute of Technology (Shenzhen)(哈尔滨工业大学(深圳))

Linmei Hu, Hongyu He, Duokang Wang, Ziwang Zhao, Yingxia Shao, Liqiang Nie

AI总结:

针对人格检测标注稀缺、现有方法忽略标签语义且特征质量不足的问题,提出基于LLM文本增强的小模型人格检测方法,通过多维度增强数据对比学习和标签信息丰富提升性能,效果超越现有最优方法。

摘要:

人格检测旨在挖掘社交媒体帖子中隐含的人格特质。该任务的一大挑战是从自陈问卷收集的真实人格特质标注数据稀缺。现有方法大多在有限的人格标签监督下,通过微调预训练语言模型直接学习帖子特征,这会导致帖子特征质量不佳,进而影响检测性能。此外,这些方法将人格特质视为独热分类标签,忽略了标签本身的语义信息。本文提出了一种基于大语言模型(LLM)的文本增强人格检测模型,该模型蒸馏LLM的知识以增强用于人格检测的小模型,即便LLM自身在该任务上表现不佳也能生效。具体而言,我们让LLM从语义、情感和语言这三个对人格检测至关重要的维度生成帖子分析(即增强数据)。通过对比学习在嵌入空间中将这些增强数据与原帖子拉近,帖子编码器能更好地捕捉帖子表示中的心理语言学信息,从而提升人格检测效果。此外,我们利用LLM丰富人格标签的信息以进一步增强检测性能。在基准数据集上的实验结果表明,我们的模型在人格检测任务上优于现有最优方法。

英文摘要:

Personality detection aims to detect one's personality traits underlying in social media posts. One challenge of this task is the scarcity of ground-truth personality traits which are collected from self-report questionnaires. Most existing methods learn post features directly by fine-tuning the pre-trained language models under the supervision of limited personality labels. This leads to inferior quality of post features and consequently affects the performance. In addition, they treat personality traits as one-hot classification labels, overlooking the semantic information within them. In this paper, we propose a large language model (LLM) based text augmentation enhanced personality detection model, which distills the LLM's knowledge to enhance the small model for personality detection, even when the LLM fails in this task. Specifically, we enable LLM to generate post analyses (augmentations) from the aspects of semantic, sentiment, and linguistic, which are critical for personality detection. By using contrastive learning to pull them together in the embedding space, the post encoder can better capture the psycho-linguistic information within the post representations, thus improving personality detection. Furthermore, we utilize the LLM to enrich the information of personality labels for enhancing the detection performance. Experimental results on the benchmark datasets demonstrate that our model outperforms the state-of-the-art methods on personality detection.

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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