Neural network processing apparatus, neural network processing method, and neural network processing program

A neural network processing method comprising:

• a first step of storing an input signal given to a neural network in a first memory;
• a second step of storing weights of the neural network in a second memory;
• a third step of performing a convolutional operation of the neural network including a product-sum operation of the input signal and the weights;
• a fourth step of storing, in a third memory, a table which is configured to associate an input and an output of conversion-quantization processing with each other, wherein the input is an operation result of the convolutional operation in the third step, and the output is a result of the conversion-quantization processing of converting the input value based on a predetermined condition and quantizing the converted value by reducing a bit accuracy of the converted data;
• and
• a fifth step of acquiring the output of the conversion-quantization processing corresponding to the operation result in the third step by referring to the table.

A non-transitory computer-readable storage medium storing a neural network processing program configured to cause a computer to execute:

• a first step of storing an input signal given to a neural network in a first memory;
• a second step of storing weights of the neural network in a second memory;
• a third step of performing a convolutional operation of the neural network including a product-sum operation of the input signal and the weights;
• a fourth step of storing, in a third memory, a table which is configured to associate an input and an output of conversion-quantization processing with each other, wherein the input is an operation result of the convolutional operation in the third step, and the output is a result of the conversion-quantization processing of converting the input value based on a predetermined condition and quantizing the converted value by reducing a bit accuracy of the converted data;
• and
• a fifth step of acquiring the output of the conversion-quantization processing corresponding to the operation result in the third step by referring to the table.