LOG MESSAGE GROUPING APPARATUS, LOG MESSAGE GROUPING SYSTEM AND LOG MESSAGE GROUPING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a log message grouping apparatus, a log message grouping system and a log message grouping method capable of grouping log messages without preparing for information that associates the log messages as a group in advance.SOLUTION: A log message grouping apparatus 101 calculates a matching degree evaluation value E1 indicating a degree of matching of a small number of words that are words having a relatively small number of occurrences among the words constituting a log message 201. In addition, the log message grouping apparatus 101 calculates an occurrence evaluation value E2 indicating an occurrence of a combination of a classification value of the log message 201 and a classification value of the past log message 201 on the basis of an occurrence number of the combination of the classification values, and calculates a relevance evaluation value E3 indicating a relevance between the log message 201 and the past log message 201 on the basis of the matching degree evaluation value E1 and the occurrence evaluation value E2.SELECTED DRAWING: Figure 1