Class boundary detection apparatus, control method, and non-transitory computer-readable medium

A control method executed by a computer, the control method comprising:

• acquiring target time-series data that is time-series data to be analyzed;
• extracting a plurality of pieces of extracted time-series data from the target time-series data and calculating a similarity between reference time-series data representing class boundaries of two different classes and each piece of the extracted time-series data;
• and
• detecting a class boundary represented by the reference time-series data from the extracted time-series data having the calculated similarity equal to or more than a threshold,
• wherein the reference time-series data includes, after a tail portion of time-series data belonging to a preceding class indicated by the class boundary, a head portion of time-series data belonging to a subsequent class indicated by the class boundary.

A non-transitory computer-readable medium storing a program that causes a computer to execute:

• acquiring target time-series data that is time-series data to be analyzed;
• extracting a plurality of pieces of extracted time-series data from the target time-series data and calculating a similarity between reference time-series data representing class boundaries of two different classes and each piece of the extracted time-series data;
• and
• detecting a class boundary represented by the reference time-series data from the extracted time-series data having the calculated similarity equal to or more than a threshold,
• wherein the reference time-series data includes, after a tail portion of time-series data belonging to a preceding class indicated by the class boundary, a head portion of time-series data belonging to a subsequent class indicated by the class boundary.