arXiv:2601.00400cs.AI2026-01

通过自适应记忆机制,实现社交平台协同造假行为的精准高效检测。

Adaptive Causal Coordination Detection for Social Media: A Memory-Guided Framework with Semi-Supervised Learning

  • 引入自适应因果分析技术,深入挖掘账户间真实因果关系。
  • 在真实数据集上达87.3%的F1分数,较最优基线提升15.2%。
  • 减少68%人工标注需求,处理速度提升2.8倍,适合平台风控使用。

社交平台中识别协同伪造行为仍是重大挑战,现有方法多依赖表面相关性分析、参数固定且需大量人工标注。为此,我们提出自适应因果协调检测(ACCD)框架,采用三阶段渐进式架构,利用记忆引导的自适应机制动态学习并保留不同场景下的最优检测配置。第一阶段引入自适应收敛交叉映射(CCM)技术,深入识别账户间的真正因果关系;第二阶段结合主动学习与不确定性采样,在半监督分类中显著降低人工标注负担;第三阶段部署基于历史经验的自动化验证模块,实现检测结果的自我验证与优化。我们在真实数据集(包括Twitter IRA数据集、Reddit协作痕迹及多个主流机器人检测基准)上进行评估,结果表明ACCD在协同攻击检测中达到87.3%的F1分数,较最强基线提升15.2%;同时减少68%的人工标注需求,通过分层聚类优化实现2.8倍处理速度提升。ACCD为社交平台提供了更准确、高效、高度自动化的端到端解决方案,具有显著实践价值和广泛应用前景。

原文摘要 · Abstract (English)

Detecting coordinated inauthentic behavior on social media remains a critical and persistent challenge, as most existing approaches rely on superficial correlation analysis, employ static parameter settings, and demand extensive and labor-intensive manual annotation. To address these limitations systematically, we propose the Adaptive Causal Coordination Detection (ACCD) framework. ACCD adopts a three-stage, progressive architecture that leverages a memory-guided adaptive mechanism to dynamically learn and retain optimal detection configurations for diverse coordination scenarios. Specifically, in the first stage, ACCD introduces an adaptive Convergent Cross Mapping (CCM) technique to deeply identify genuine causal relationships between accounts. The second stage integrates active learning with uncertainty sampling within a semi-supervised classification scheme, significantly reducing the burden of manual labeling. The third stage deploys an automated validation module driven by historical detection experience, enabling self-verification and optimization of the detection outcomes. We conduct a comprehensive evaluation using real-world datasets, including the Twitter IRA dataset, Reddit coordination traces, and several widely-adopted bot detection benchmarks. Experimental results demonstrate that ACCD achieves an F1-score of 87.3\% in coordinated attack detection, representing a 15.2\% improvement over the strongest existing baseline. Furthermore, the system reduces manual annotation requirements by 68\% and achieves a 2.8x speedup in processing through hierarchical clustering optimization. In summary, ACCD provides a more accurate, efficient, and highly automated end-to-end solution for identifying coordinated behavior on social platforms, offering substantial practical value and promising potential for broad application.

社交网络因果检测半监督学习自动化

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