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基于双尺度约束模型的BN结构自适应学习算法

戴晶帼 任佳 董超 杜文才

戴晶帼, 任佳, 董超, 杜文才. 基于双尺度约束模型的BN结构自适应学习算法. 自动化学报, 2021, 47(8): 1988-2001 doi: 10.16383/j.aas.c180226
引用本文: 戴晶帼, 任佳, 董超, 杜文才. 基于双尺度约束模型的BN结构自适应学习算法. 自动化学报, 2021, 47(8): 1988-2001 doi: 10.16383/j.aas.c180226
Dai Jing-Guo, Ren Jia, Dong Chao, Du Wen-Cai. BN structure adaptive learning algorithm based on dual-scale constraint model. Acta Automatica Sinica, 2021, 47(8): 1988-2001 doi: 10.16383/j.aas.c180226
Citation: Dai Jing-Guo, Ren Jia, Dong Chao, Du Wen-Cai. BN structure adaptive learning algorithm based on dual-scale constraint model. Acta Automatica Sinica, 2021, 47(8): 1988-2001 doi: 10.16383/j.aas.c180226

基于双尺度约束模型的BN结构自适应学习算法

doi: 10.16383/j.aas.c180226
基金项目: 

国家国际科技合作专项 2015DFR10510

国家自然科学基金 61562018

国家海洋局南海维权技术与重点实验室开放基金 1704

海口市重点科技计划项目 2017041

详细信息
    作者简介:

    戴晶帼    海南大学信息科学技术学院博士研究生. 主要研究方向为贝叶斯网络, 智能优化.E-mail: djgolivia_edu@126.com

    董超    国家海洋局南海调查技术中心副研究员. 主要研究方向为智能控制.E-mail: dongchaoxj888@126.com

    杜文才    中国澳门城市大学数据科学研究院教授, 海南大学信息科学技术学院教授. 主要研究方向为数据挖掘, 物联网技术. E-mail: wencai@hainu.edu.cn

    通讯作者:

    任佳    海南大学信息科学技术学院教授. 主要研究方向为智能控制, 机器学习. 本文通信作者.E-mail: renjia@hainu.edu.cn

  • 本文责任编委 朱军

BN Structure Adaptive Learning Algorithm Based on Dual-scale Constraint Model

Funds: 

International Science and Technology Cooperation Projects of China 2015DFR10510

National Natural Science Foundation of China 61562018

Open Foundation of Key Laboratory of Technology and Application for Safeguarding of Marine Rights and Interests 1704

Key Science and Technology Projects of Haikou, Hainan Province 2017041

More Information
    Author Bio:

    DAI Jing-Guo    Ph. D. candidate at the College of Infomation and Technology, Hainan University. Her research interest covers Bayesian network and intelligent optimization

    DONG Chao    Associate professor at South China Sea Marine Engineering surveying Center of State Oceanic Administrtion. His main research interest is intelligent control

    DU Wen-Cai    Professor at the Institute of Data Science, City University of Macau, China and the College of Infomation and Technology, Hainan University. His research interest covers data mining and internet of things

    Corresponding author: REN Jia    Professor at the College of Infomation and Technology, Hainan University. His research interest covers intelligent control and machine learning. Corresponding author of this paper
  • Recommended by Associate Editor ZHU Jun
  • 摘要: 在无先验信息的情况下, 贝叶斯网络(Bayesian network, BN)结构搜索空间的规模随节点数目增加呈指数级增长, 造成BN结构学习难度急剧增加. 针对该问题, 提出基于双尺度约束模型的BN结构自适应学习算法. 该算法利用最大互信息和条件独立性测试构建大尺度约束模型, 完成BN结构搜索空间的初始化. 在此基础上设计改进遗传算法, 在结构迭代优化过程中引入小尺度约束模型, 实现结构搜索空间小尺度动态缩放. 同时, 在改进遗传算法中构建变异概率自适应调节函数, 以降低结构学习过程陷入局部最优解的概率. 仿真结果表明, 提出的基于双尺度约束模型的BN结构自适应学习算法能够在无先验信息的情况下保证BN结构学习的精度和迭代寻优的收敛速度.
    Recommended by Associate Editor ZHU Jun
    1)  本文责任编委 朱军
  • 图  1  DSC-AL算法框架示意图

    Fig.  1  The framework of DSC-AL algorithm

    图  2  小尺度约束模型工作原理

    Fig.  2  The working principle of small-scale constraint model

    图  3  DSC-AL算法流程图

    Fig.  3  The flowchart of DSC-AL algorithm

    图  4  节点顺序交叉方法

    Fig.  4  The crossover of node order

    图  5  三种标准BN结构示意

    Fig.  5  Three benchmark BNs

    图  6  6种算法在ASIA-1000数据集下的3种性能指标的误差条形图

    Fig.  6  Error bar graph of 3 measures for 6 algorithms on ASIA-1000 data set

    图  7  ASIA-1000下最优结构BIC评分平均值变化曲线

    Fig.  7  The curves of BIC scores for optimal structures on ASIA-1000 data set

    图  8  ASIA-1000下优于上一代种群的个体数平均值变化曲线

    Fig.  8  The curves of number of better individuals on ASIA-1000 data set

    图  9  6种算法在CAR_DIAGNOSIS2-2000数据集下的3种性能指标的误差条形图

    Fig.  9  Error bar graph of 3 measures for 6 algorithms on CAR_DIAGNOSIS2-2000 data set

    图  10  CAR_DIAGNOSIS2-2000下最优结构BIC评分平均值变化曲线

    Fig.  10  The curves of BIC scores for optimal structures on CAR_DIAGNOSIS2-2000 data set

    图  11  CAR_DIAGNOSIS2-2000下优于上一代种群的个体数平均值变化曲线

    Fig.  11  The curves of number of better individuals on CAR_DIAGNOSIS2-2000 data set

    图  12  ALARM-2000下最优结构BIC评分平均值变化曲线

    Fig.  12  The curves of BIC scores for optimal structures on ALARM-2000 data set

    图  13  ALARM-5000下最优结构BIC评分平均值变化曲线

    Fig.  13  The curves of BIC scores for optimal structures on ALARM-5000 data set

    表  1  ASIA模型下不同算法结果对比

    Table  1  Comparisons of different methods on ASIA network

    数据集 算法 IBIC BIC SHD RT BG
    ASIA-1 000 (−2 325.3) DSC-AL −2 375.1 (3.6570) −2 320.5 (2.1782) 1.3667 (0.7184) 103.4270 (17.5317) 29.6667 (25.1812)
    DGA −2 406.9 (15.1353) −2 329.5 (6.8571) 4.9333 (1.2576) 173.9571 (7.9109) 47.2333 (42.1775)
    K2 / −2 342.1 (14.0940) 7.5667 (2.1284) / /
    DSC-AL + RdInit −2 421.9 (19.5248) −2 324.7 (4.7155) 3.8333 (2.0186) 104.3722 (23.3174) 44.7000 (49.7165)
    DSC-AL + FixAlp −2 372.3 (0.2821) −2 320.2 (1.7524) 1.4333 (0.9353) 62.6387 (9.6306) 28.6333 (20.8450)
    DSC-AL + RdAlp −2 374.4 (2.7308) −2 321.7 (3.3730) 2.1667 (1.7237) 85.2060 (7.6515) 39.1000 (28.7250)
    DSC-AL + FixP −2 374.8 (2.9988) −2 322.0 (3.2387) 2.4000 (1.7927) 68.6206 (12.4026) 47.2667 (51.1205)
    下载: 导出CSV

    表  2  CAR DIAGNOSIS2模型下不同算法结果对比

    Table  2  Comparisons of different methods on CAR DIAGNOSIS2 network

    数据集 算法 IBIC BIC SHD RT BG
    CAR DIAGNOSIS2-2000 (−11 922) DSC-AL −13 865 (186.3612) −11 774 (43.2254) 6.8000 (1.1861) 520.6599 (74.8401) 144.0667 (45.2601)
    DGA −15 546 (271.5482) −11 795 (51.1551) 13.2000 (1.7301) 856.7351 (85.2662) 222.7667 (21.2630)
    K2 / −12 111 (198.0365) 23.5667 (5.4752) / /
    DSC-AL + RdInit −15 661 (415.5809) −12 034 (181.5865) 13.8333 (3.0181) 508.8949 (67.7425) 194.5000 (67.9111)
    DSC-AL + FixAlp −13 557 (87.5065) −11 745 (22.6139) 10.7000 (3.0867) 583.9935 (9.6306) 226.6667 (33.6988)
    DSC-AL + RdAlp −13 883 (177.8057) −11 820 (37.1534) 9.9000 (2.0060) 426.4885 (63.1594) 172.5667 (57.0485)
    DSC-AL + FixP −13 860 (143.4086) −11 825 (41.7158) 9.8667 (2.2242) 364.3424 (90.1956) 159.2667 (42.1303)
    下载: 导出CSV

    表  3  ALARM模型下不同算法结果对比

    Table  3  Comparisons of different methods on ALARM network

    数据集 算法 SHD RT BG
    ALARM-2000 (−20 294) DSC-AL 15.1000 (2.7669) 2 898.8 (267.3125) 225.8000 (95.5671)
    DGA 33.5000 (3.5071) 2 910.5 (122.4261) 498.1667 (1.4720)
    BNC-PSO 25.3333 (5.5000) 2 689.1 (153.1974) 267.7778 (63.5227)
    ALARM-5000 (−48 724) DSC-AL 13.5000 (0.9718) 2 322.7 (106.2002) 203.4000 (85.6364)
    DGA 28.6667 (1.2111) 2 435.5 (239.3540) 498.3333 (3.1411)
    BNC-PSO 16.3000 (3.6833) 1616.3 (473.0926) 315.9000 (98.0583)
    下载: 导出CSV
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  • 收稿日期:  2018-04-17
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