公开(公告)号：EP2341434A8

公开(公告)日：2011-09-14

申请号：EP11153936.7

申请日：2009-02-16

Applicant: Hitachi, Ltd.

Inventor： Kudo, Yutaka ,  Masuishi, Tetsuya ,  Fujita, Takahiro ,  Morimura, Tomohiro

IPC: G06F11/07

CPC classification number: H04L41/0631 ,  G06F11/0709 ,  G06F11/079 ,  G06N5/025 ,  H04L41/046 ,  H04L41/0681 ,  H04L41/069 ,  H04L41/12 ,  H04L41/16 ,  H04L43/04

Abstract: A root cause analysis engine uses event durations and gradual deletion of events to improve analysis accuracy and reduce the number of required calculations. Matching ratios of relevant rules are recalculated every time notification of an event is received. The calculation results are held in a rule memory in the analysis engine. Each event has a valid duration, and when the duration has expired, that event is deleted from the rule memory. Events held in the rule memory can be deleted without affecting other events held in the rule memory. The analysis engine can then re-calculate the matching ratio of each rule by only performing the re-calculation with respect to affected rules related to the deleted event. The calculation cost can be reduced because analysis engine processes events incrementally or decrementally. Analysis engine can determine the most possible conclusion even if one or more condition elements were not true.

公开(公告)号：EP2341434B1

公开(公告)日：2018-12-12

申请号：EP11153936.7

申请日：2009-02-16

Applicant: Hitachi, Ltd.

Inventor： Kudo, Yutaka ,  Masuishi, Tetsuya ,  Fujita, Takahiro ,  Morimura, Tomohiro

IPC: H04L12/24 ,  H04L12/26 ,  G06F11/07 ,  G06N5/02

CPC classification number: H04L41/0631 ,  G06F11/0709 ,  G06F11/079 ,  G06N5/025 ,  H04L41/046 ,  H04L41/0681 ,  H04L41/069 ,  H04L41/12 ,  H04L41/16 ,  H04L43/04

Abstract: A root cause analysis engine uses event durations and gradual deletion of events to improve analysis accuracy and reduce the number of required calculations. Matching ratios of relevant rules are recalculated every time notification of an event is received. The calculation results are held in a rule memory in the analysis engine. Each event has a valid duration, and when the duration has expired, that event is deleted from the rule memory. Events held in the rule memory can be deleted without affecting other events held in the rule memory. The analysis engine can then re-calculate the matching ratio of each rule by only performing the re-calculation with respect to affected rules related to the deleted event. The calculation cost can be reduced because analysis engine processes events incrementally or decrementally. Analysis engine can determine the most possible conclusion even if one or more condition elements were not true.

公开(公告)号：EP2341434A1

公开(公告)日：2011-07-06

申请号：EP11153936.7

申请日：2009-02-16

Applicant: Hitachi Ltd.

Inventor： Kudo, Yutaka ,  Masuishi, Tetsuya ,  Fujita, Takahiro ,  Morimura, Tomohiro

IPC: G06F11/07

CPC classification number: H04L41/0631 ,  G06F11/0709 ,  G06F11/079 ,  G06N5/025 ,  H04L41/046 ,  H04L41/0681 ,  H04L41/069 ,  H04L41/12 ,  H04L41/16 ,  H04L43/04

Abstract: A root cause analysis engine uses event durations and gradual deletion of events to improve analysis accuracy and reduce the number of required calculations. Matching ratios of relevant rules are recalculated every time notification of an event is received. The calculation results are held in a rule memory in the analysis engine. Each event has a valid duration, and when the duration has expired, that event is deleted from the rule memory. Events held in the rule memory can be deleted without affecting other events held in the rule memory. The analysis engine can then re-calculate the matching ratio of each rule by only performing the re-calculation with respect to affected rules related to the deleted event. The calculation cost can be reduced because analysis engine processes events incrementally or decrementally. Analysis engine can determine the most possible conclusion even if one or more condition elements were not true.

Abstract translation: 根本原因分析引擎使用事件持续时间和逐渐删除事件来提高分析准确性并减少所需计算的数量。 每次收到事件的通知时，都会重新计算相关规则的匹配比例。 计算结果保存在分析引擎中的规则存储器中。 每个事件都有有效的持续时间，当持续时间到期时，该事件将从规则存储器中删除。 可以删除在规则存储器中保存的事件，而不会影响规则存储器中保存的其他事件。 然后，分析引擎可以通过仅针对与删除的事件相关的受影响的规则执行重新计算来重新计算每个规则的匹配比率。 计算费用可以减少，因为分析引擎会逐渐或者递减地处理事件。 即使一个或多个条件元素不为真，分析引擎也可以确定最可能的结论。