环境不确定性感知框架用于检测错误信息和在COVID-19大流行中传播预测:人工智能方法
Jiahui Lu1,2, Huibin Zhang2, Yi Xiao2
1State Key Laboratory of Communication Content Cognition, People's Daily Online, Beijing, China.
JMIR AI
|June 14, 2024
概括
本研究介绍了环境不确定性感知 (EUP) 框架,以改善社交媒体错误信息的检测和传播预测. 整合环境不确定性可以提高准确性,帮助危机期间的公共卫生治理.
科学领域:
- 社交媒体分析 社交媒体分析
- 公共卫生信息学 公共卫生信息学
- 计算社会科学 计算社会科学
背景情况:
- COVID-19大流行突出了社交媒体的错误信息威胁.
- 现有的检测模型忽视了更广泛的信息环境.
- 需要加强错误信息检测和传播预测框架.
研究的目的:
- 制定一个新的框架,将信息环境的不确定性纳入错误信息的特征.
- 提高错误信息检测和传播预测的准确性.
- 在健康危机期间支持在线治理.
主要方法:
- 引入了环境不确定性感知 (EUP) 框架.
- 来自4个环境尺度的内置不确定性:物理,宏观媒体,微观沟通和消息框架.
- 使用COVID-19错误信息数据集评估EUP的有效性.
主要成果:
- 仅EUP就实现了0.753的检测准确度和0.71.7的预测准确度.
- 在EUP中,基线模型 (BiLSTM,BERT) 提高了1.98% (检测) 和2.4% (预测).
- 在不平衡的数据集中,EUP的相对改善率为21.5% (宏观F1) 和5.7% (AUC).
结论:
- 信息环境中的不确定性特征对于错误信息算法至关重要.
- 欧盟环境政策框架有效地模拟了四个环境尺度上的错误信息.
- 研究结果支持整合不确定性,以改善错误信息的检测和预测.
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