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    • 10. 发明申请
    • SYSTEM AND METHOD FOR DEFINING NORMAL OPERATING REGIONS AND IDENTIFYING ANOMALOUS BEHAVIOR OF UNITS WITHIN A FLEET, OPERATING IN A COMPLEX, DYNAMIC ENVIRONMENT
    • 用于定义正常操作区域的系统和方法,并识别单元中的单个异常行为,复杂动态环境中的操作
    • US20080091630A1
    • 2008-04-17
    • US11755924
    • 2007-05-31
    • Piero BonissoneWeizhong YanNaresh IyerKai GoebelAnil Varma
    • Piero BonissoneWeizhong YanNaresh IyerKai GoebelAnil Varma
    • G06N5/00
    • G05B23/024G06K9/6284G06N99/005
    • Monitoring dynamic units that operate in complex, dynamic environments, is provided in order to classify and track unit behavior over time. When domain knowledge is available, feature-based models may be used to capture the essential state information of the units. When domain knowledge is not available, raw data is relied upon to perform this task. By analyzing logs of event messages (without having access to their data dictionary), embodiments allow the identification of anomalies (novelties). Specifically, a Normalized Compression Distance (such as one based on Kolmogorov Complexity) may be applied to logs of event messages. By analyzing the similarity and differences of the event message logs, units are identified that did not experience any abnormality (and locate regions of normal operations) and units that departed from such regions. Of particular interest is the detection and identification of units' epidemics, which is defined as sustained/increasing numbers of anomalies over time.
    • 提供了监控在复杂,动态环境中运行的动态单元,以便对时间段内的单元行为进行分类和跟踪。 当领域知识可用时,可以使用基于特征的模型来捕获单位的基本状态信息。 当领域知识不可用时,依靠原始数据来执行此任务。 通过分析事件消息的日志(不访问其数据字典),实施例允许识别异常(新奇事物)。 具体来说,归一化压缩距离(例如基于Kolmogorov复杂度的距离)可以应用于事件消息的日志。 通过分析事件消息日志的相似性和差异,识别出没有经历任何异常(并定位正常操作的区域)的单位和离开这些区域的单位。 特别感兴趣的是检测和识别单位的流行病,其定义为持续/越来越多的异常随时间变化。