Reputation analysis system and reputation analysis method

A reputation analysis method comprising:

• extracting, from a plurality of documents, a description representing a voluntary action relating to a subject indicated by an inputted keyword;
• and
• counting the number of appearances of voluntary actions for each point of time when a voluntary action expressed by a description representing a voluntary action relating to said subject is performed, and thereby estimating reputation time-series data which represents evaluations of said subject by agents of the voluntary actions in the form of a time series.

A non-transitory computer-readable program recording medium storing a program for reputation analysis for enabling a computer to execute the processes of:

• extracting, from a plurality of documents, a description representing a voluntary action relating to a subject indicated by an inputted keyword;
• and
• counting the number of appearances of voluntary actions for each point of time when a voluntary action expressed by a description representing a voluntary action relating to said subject is performed, and thereby estimating reputation time-series data which represents evaluations of said subject by agents of the voluntary actions in the form of a time series.

A reputation analysis system comprising:

• voluntary action description extraction means for extracting, from a plurality of documents, a description representing a voluntary action relating to a subject indicated by an inputted keyword;
• and
• reputation time-series data estimation means for counting the number of appearances of voluntary actions for each point of time when a voluntary action expressed by a description representing a voluntary action relating to said subject, and thereby estimating reputation time-series data which represents evaluations of said subject by agents of the voluntary actions in the form of a time series.