Title:
ログ分析システム、ログ分析方法及びログ分析装置
Document Type and Number:
Japanese Patent JP6623128
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a log analysis system, a log analysis method and a log analysis device which address a case where a relation among events is partially missing.SOLUTION: A log analysis system for analyzing log information includes: a relation tree structuring part for determining whether there is a causal relation in an occurrence of a plurality of events on the basis of log information including the plurality of events and structuring a graph structure by setting each event as a node and adding an edge among nodes corresponding to the events when there is a causal relation; a relation tree suspicion degree calculation part for determining whether a tree defined by the graph structure is a tree which has generated a certain event designated regarding the event designated and calculating a degree of likelihood on the basis of determination conditions concerning an event structuring each tree and determination conditions concerning structural characteristics of the tree in the determination of whether it is the tree which has generated the designated event; and a result output part for outputting the graph structure compensating the causal relation as a result by adding the degree of likelihood.SELECTED DRAWING: Figure 1
Inventors:
Naoki Hayashi
Tetsuro Kito
Hiroshi Nakakoji
Tetsuro Kito
Hiroshi Nakakoji
Application Number:
JP2016151528A
Publication Date:
December 18, 2019
Filing Date:
August 01, 2016
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F16/28; G06F16/904; G06Q50/10
Domestic Patent References:
| JP2016045556A | ||||
| JP2010122847A | ||||
| JP2010050939A |
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office