计算机科学 ›› 2026, Vol. 53 ›› Issue (9): 385-394.doi: 10.11896/jsjkx.260600033

• 信息安全 • 上一篇    下一篇

基于联邦学习的三支安全决策

王书谊1, 张炜2, 徐健锋1,4, 苗夺谦3, 姚一豫4   

  1. 1 南昌大学数学与计算机学院 南昌 330000
    2 南昌大学软件学院 南昌 330000
    3 同济大学计算机科学与技术学院 上海 201804
    4 加拿大里贾那大学计算机系 里贾纳 S4S 0A2
  • 收稿日期:2026-05-03 修回日期:2026-07-06 出版日期:2026-09-15 发布日期:2026-09-10
  • 通讯作者: 徐健锋(jianfeng_x@ncu.edu.cn)
  • 作者简介:(w592969166@126.com)
  • 基金资助:
    国家自然科学基金(62266032);国家科技重大专项(2025ZD1009305);江西省自然科学基金(20252BAC250130)

Three-way Security Decision-making Based on Federated Learning

WANG Shuyi1, ZHANG Wei2, XU Jianfeng1,4, MIAO Duoqian3, YAO Yiyu4   

  1. 1 School of Mathematics and Computer Sciences,Nanchang University,Nanchang 330000,China
    2 School of Software,Nanchang University,Nanchang 330000,China
    3 School of Computer Science and Technology,Tongji University,Shanghai 201804,China
    4 Department of Computer Science,University of Regina,Regina S4S 0A2,Canada
  • Received:2026-05-03 Revised:2026-07-06 Published:2026-09-15 Online:2026-09-10
  • About author:WANG Shuyi,born in 2000,doctoral candidate.His main research interests include granular computing and uncertain artificial intelligence.
    XU Jianfeng,born in 1973,Ph.D,professor.His main research interests include artificial intelligence,smart healthcare,granular computing,and stream computing.
  • Supported by:
    National Natural Science Foundation of China(62266032),National Science and Technology Major Project of China(2025ZD1009305),and Jiangxi Provincial Natural Science Foundation(20252BAC250130).

摘要: 在多机构联合安全决策场景中,存在隐私保护的约束要求,联邦学习能够为此类场景提供数据不出本地的协同决策方法。但经典的基于联邦学习的决策算法往往采用传统二元决策机制,该机制对不确定问题的处理能力有限。三支决策是一种不确定问题的求解方法,其对不确定性决策对象能进行更为审慎的延迟判定。对此,基于三支决策理论,提出了一种联邦三支安全决策框架(FL-3WSD),该框架在局部规则生成、多源规则融合和目标对象监控3个层面引入三支决策机制,包括参与方侧局部三支规则生成、中央云服务器侧三支多源规则融合以及目标对象三支监控方法。在本框架中,中央云服务器首先向各参与方下发训练模型及相关参数。然后,各参与方利用数据聚类及序贯三支决策方法实现了决策规则提取,并上传至中央云服务器。最后,由中央云服务器进行决策规则汇总、模糊融合,并结合三支决策机制生成全局三支安全决策表,最终用于目标对象的联合判定。实验结果表明,与经典采用二元决策机制的联邦决策方法相比,FL-3WSD框架在决策精度和误判风险控制等方面具有明显优势,体现出较好的科学价值和应用前景。

关键词: 三支决策, 联邦学习, 隐私保护, 模糊等价类, 不确定性

Abstract: In multi-institutional joint security decision-making scenarios,federated learning provides a collaborative decision-ma-king approach that enables data to remain local under privacy-preservation constraints.However,conventional federated-learning-based decision-making algorithms often adopt a traditional binary decision mechanism,which has limited capability in handling uncertainty.Three-way decision is an effective method for addressing uncertain problems,as it enables more prudent deferred judgments for uncertain decision objects.Based on three-way decision theory,this paper proposes a federated three-way security decision-making framework,termed FL-3WSD.The proposed framework introduces the three-way decision mechanism into three levels:local rule generation,multi-source rule fusion,and target object monitoring,including local three-way rule generation on the participant side,three-way multi-source rule fusion on the central cloud server side,and three-way monitoring for target objects.In this framework,the central cloud server first distributes the training model and related parameters to each participant.Then,each participant employs data clustering and sequential three-way decision methods to extract decision rules and uploads them to the central cloud server.Finally,the central cloud server aggregates and fuzzily fuses the decision rules,and further incorporates the three-way decision mechanism to generate a global three-way security decision table,which is ultimately used for the joint judgment of target objects.Compared with classical federated decision-making methods based on binary decision mechanisms,the experimental results show that the FL-3WSD framework achieves clear advantages in decision accuracy and misclassification risk control,demonstrating promising scientific value and application prospects.

Key words: Three-way decision, Federated learning, Privacy preservation, Fuzzy equivalence class, Uncertainty

中图分类号: 

  • TP309.2
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