Search Results for author: Chengyu Du

Found 4 papers, 1 papers with code

多目标情感分类中文数据集构建及分析研究(Construction and Analysis of Chinese Multi-Target Sentiment Classification Dataset)

no code implementations CCL 2020 Pengyuan Liu, Yongsheng Tian, Chengyu Du, Likun Qiu

目标级情感分类任务是要得到句子中特定评价目标的情感倾向。一个评论句中往往存在多个目标, 多个目标的情感可能一致, 也可能不一致。但在已有针对目标级情感分类的评测数据集中:1)大多数是一个句子一个目标;2)在少数有多个目标的句子中, 多个目标情感倾向分布很不均衡, 多个目标情感一致的情形占较大优势。数据集本身的缺陷限制了模型针对多个目标进行情感分类的提升空间。针对以上问题, 本文构建了一个针对多目标情感分类的中文数据集, 人工标注了6339个评价目标, 共2071条数据。该数据集:1)评价目标个数分布平衡;2)情感正负极性分布平衡;3)多目标情感倾向分布平衡。随后, 本文利用多个目标情感分类的主流模型在该数据集上进行了实验与比较分析。结果表明现有主流模型尚不能对存在多个目标且目标情感倾向性不一致实例中的目标进行很好的分类, 尤其是目标的情感倾向为中性时。多目标情感分类任务具有一定的难度与挑战性。

Sentiment Analysis Sentiment Classification

Enhancing Confidence Expression in Large Language Models Through Learning from Past Experience

no code implementations16 Apr 2024 Haixia Han, Tingyun Li, Shisong Chen, Jie Shi, Chengyu Du, Yanghua Xiao, Jiaqing Liang, Xin Lin

Specifically, we first identify three key problems: (1) How to capture the inherent confidence of the LLM?

Emotion Action Detection and Emotion Inference: the Task and Dataset

1 code implementation16 Mar 2019 Pengyuan Liu, Chengyu Du, Shuofeng Zhao, Chenghao Zhu

We are currently releasing the data-set with 10, 603 samples and 15, 892 events, basic statistic analysis and baseline on both emotion causality and emotion inference tasks.

Action Detection Emotion Classification +2

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