Information processing device and method, and recording medium

An information processing method executed by a computer, the information processing method comprising:

• calculating a quantization error when a variable to be used in a neural network is quantized,
• generating a threshold value based on reference information related to a first recognition rate obtained by past learning of the neural network and a second recognition rate that is obtained by calculation of the neural network,
• determining a variable of data type to be quantized among variables to be used for calculation of the neural network based on the calculated quantization error and the generated threshold value, and
• executing the calculation of the neural network by using the variable of data type.

A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process comprising:

• calculating a quantization error when a variable to be used in a neural network is quantized,
• generating a threshold value based on reference information related to a first recognition rate obtained by past learning of the neural network and a second recognition rate that is obtained by calculation of the neural network,
• determining a variable of data type to be quantized among variables to be used for calculation of the neural network based on the calculated quantization error and the generated threshold value, and
• executing the calculation of the neural network by using the variable of data type.