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    • 5. 发明申请
    • GENERATION OF A SET OF PRE-FILTERS FROM A SET OF EVENT SUBSCRIPTIONS TO MORE EFFICIENTLY SELECT EVENTS OF INTEREST
    • 一组预先筛选器从一组事件订阅到更有效的选择活动的生成
    • US20080263093A1
    • 2008-10-23
    • US11737928
    • 2007-04-20
    • John William AlcornKevin Spencer BarkerDavid Michael EadsJoachim H. Frank
    • John William AlcornKevin Spencer BarkerDavid Michael EadsJoachim H. Frank
    • G06F17/30
    • G06F9/542
    • A method, system and computer program product for achieving a balance between pre-filter efficiency and pre-filter throughput. Event subscriptions are obtained for a given event consumer. The event subscriptions define the events to be routed to this event consumer. Pre-filters of varying complexity and filtering power are constructed based on these event subscriptions. A balance between pre-filter efficiency and pre-filter throughput may be achieved by selecting the best pre-filter out of these constructed pre-filters to filter events to its associated event consumer. The best pre-filter is selected by comparing a complexity threshold (e.g., a limit for the number of atomic Boolean expressions in a pre-filter) with the actual complexity (e.g., the actual number of atomic Boolean expressions) for each constructed pre-filter and selecting the most complex pre-filter without exceeding the threshold.
    • 一种方法,系统和计算机程序产品,用于实现预过滤器效率和预过滤器吞吐量之间的平衡。 事件订阅是为给定的事件消费者获得的。 事件订阅定义要路由到此事件消费者的事件。 基于这些事件订阅构建不同复杂度和过滤能力的预过滤器。 可以通过从这些构造的预滤波器中选择最佳的预滤波器来过滤事件到其相关联的事件消费者来实现预滤波器效率和预滤波器吞吐量之间的平衡。 通过将复杂度阈值(例如,预过滤器中的原子布尔表达式的数量限制)与实际复杂度(例如,实际的原子布尔表达式数)进行比较来选择最佳预过滤器, 过滤并选择最复杂的预过滤器,而不超过阈值。
    • 8. 发明授权
    • Generation of a set of pre-filters from a set of event subscriptions to more efficiently select events of interest
    • 从一组事件订阅生成一组预过滤器,以更有效地选择感兴趣的事件
    • US08521689B2
    • 2013-08-27
    • US11737928
    • 2007-04-20
    • John William AlcornKevin Spencer BarkerDavid Michael EadsJoachim H. Frank
    • John William AlcornKevin Spencer BarkerDavid Michael EadsJoachim H. Frank
    • G06F7/00G06F17/00
    • G06F9/542
    • A method, system and computer program product for achieving a balance between pre-filter efficiency and pre-filter throughput. Event subscriptions are obtained for a given event consumer. The event subscriptions define the events to be routed to this event consumer. Pre-filters of varying complexity and filtering power are constructed based on these event subscriptions. A balance between pre-filter efficiency and pre-filter throughput may be achieved by selecting the best pre-filter out of these constructed pre-filters to filter events to its associated event consumer. The best pre-filter is selected by comparing a complexity threshold (e.g., a limit for the number of atomic Boolean expressions in a pre-filter) with the actual complexity (e.g., the actual number of atomic Boolean expressions) for each constructed pre-filter and selecting the most complex pre-filter without exceeding the threshold.
    • 一种方法,系统和计算机程序产品,用于实现预过滤器效率和预过滤器吞吐量之间的平衡。 事件订阅是为给定的事件消费者获得的。 事件订阅定义要路由到此事件消费者的事件。 基于这些事件订阅构建不同复杂度和过滤能力的预过滤器。 可以通过从这些构造的预滤波器中选择最佳的预滤波器来过滤事件到其相关联的事件消费者来实现预滤波器效率和预滤波器吞吐量之间的平衡。 通过将复杂度阈值(例如,预过滤器中的原子布尔表达式的数量限制)与实际复杂度(例如,实际的原子布尔表达式数)进行比较来选择最佳预过滤器, 过滤并选择最复杂的预过滤器,而不超过阈值。