Patent ID: 11941495
Assignee: NEC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An information processing device comprising:
a memory; and
at least one processor coupled to the memory,
the processor performing operations, the operations comprising:
receiving a plurality of pieces of time-series data being time-domain data from a plurality of sensors measuring an object, at least one sensor having a different period from a period of another sensor;
converting each of the pieces of time-series data into a piece of frequency-domain data being data of power in frequencies;
extracting a feature of a period or a frequency having maximum power in each of the pieces of frequency-domain data;
classifying each of the pieces of time-series data into one of groups, the groups respectively related to the feature for each period or frequency having maximum power;
generating a plurality of models, each of the models that represents a relationship among a plurality of the pieces of time-series data classified into each of the groups classified the pieces of time-series data; and
selecting the model in which strength of the relationship satisfies a predetermined condition.