| 基于模式矩阵的液体火箭发动机试车台故障关联规则挖掘 |
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| 引用本文： | 王珉,胡茑庆,秦国军.基于模式矩阵的液体火箭发动机试车台故障关联规则挖掘[J].宇航学报,2011,32(4). |
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| 作者姓名： | 王珉 胡茑庆 秦国军 |
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| 作者单位： | 国防科技大学机电工程与自动化学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目，湖南省杰出青年科学基金项目 |
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| 摘 要： | 为发现试车台状态变量与其工作状况的关联关系,本文对液体火箭发动机试车台历史测试数据进行关联规则挖掘,对试车台状态参数进行选择和编码,使用自适应阈值算法对测试数据进行离散化,引入模式矩阵用于计算事务数据库中的频繁项集,提出了基于模式矩阵的关联规则挖掘方法,并将该方法应用于对多组历史测试数据进行频繁项集挖掘,对挖掘结果的分析表明:与传统方法相比,本文方法效率高,计算量小,挖掘结果能正确反映试车台状态变量与其工作状况间的关联规则,为试车台的测试数据挖掘提供了一种有效方法.
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| 关 键 词： | 液体火箭发动机 试车台 关联规则 模式矩阵 数据挖掘 |
Association Rules of Liquid-Propellant Rocket Engine Test-Bed Based on Pattern Matrix |
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| WANG Min,HU Niao-qing,QIN Guo-jun.Association Rules of Liquid-Propellant Rocket Engine Test-Bed Based on Pattern Matrix[J].Journal of Astronautics,2011,32(4). |
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| Authors: | WANG Min HU Niao-qing QIN Guo-jun |
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| Institution: | WANG Min,HU Niao-qing,QIN Guo-jun(School of Mechatronic Engineering and Automation,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | In order to discover the associated relation between state variables and operating conditions of LRE test-bed,the association rules are mined from historical test data of test-bed.The state parameters of test-bed are elected and encoded.The test data are discretized by using an adapting threshold algorithm.The pattern matrix is introduced to calculate the frequent item set in the transaction database,and a method for mining association rules based on pattern matrix is presented.this method was applied in mi... |
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| Keywords: | LRE Test-bed Association rule Pattern matrix Data mining |
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