通过消息级分析与上下文判断,提升儿童网络诱骗的实时检测精度。
Enhanced Online Grooming Detection Employing Context Determination and Message-Level Analysis
- 基于BERT和RoBERTa进行消息层级语义分析
- 引入角色重要性与消息重要性阈值提升识别能力
- 适用于加密社交平台,适合安全防护系统开发者
网络诱骗(OG)是针对儿童的主要在线威胁,诱骗者利用欺骗手段攻击儿童心理脆弱性。此类行为可能造成严重心理与身体伤害,甚至导致再次受害。现有技术措施不足,尤其在端到端加密环境下难以监测消息内容。当前方案多依赖儿童虐待内容的特征分析,无法有效实现实时诱骗检测。本文指出,诱骗行为具有复杂性,需识别成人与儿童之间的特定交流模式。提出一种新方法,结合BERT与RoBERTa模型进行消息级分析,并引入上下文判定机制,包括角色重要性阈值与消息重要性阈值,以增强检测的准确性和鲁棒性。跨数据集实验验证了该方法的泛化能力与适用性。本研究贡献在于改进检测方法,具备在多种场景中应用的潜力,填补了现有文献与实践中的空白。
原文摘要 · Abstract (English)
Online Grooming (OG) is a prevalent threat facing predominately children online, with groomers using deceptive methods to prey on the vulnerability of children on social media/messaging platforms. These attacks can have severe psychological and physical impacts, including a tendency towards revictimization. Current technical measures are inadequate, especially with the advent of end-to-end encryption which hampers message monitoring. Existing solutions focus on the signature analysis of child abuse media, which does not effectively address real-time OG detection. This paper proposes that OG attacks are complex, requiring the identification of specific communication patterns between adults and children. It introduces a novel approach leveraging advanced models such as BERT and RoBERTa for Message-Level Analysis and a Context Determination approach for classifying actor interactions, including the introduction of Actor Significance Thresholds and Message Significance Thresholds. The proposed method aims to enhance accuracy and robustness in detecting OG by considering the dynamic and multi-faceted nature of these attacks. Cross-dataset experiments evaluate the robustness and versatility of our approach. This paper's contributions include improved detection methodologies and the potential for application in various scenarios, addressing gaps in current literature and practices.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。