PURPOSE: To obtain a method and a device for separating and recognizing information to enable high-speed information recognition by acquiring an information separating faculty at high speed by learning.

CONSTITUTION: One or two or more kinds of function operation are executed to an input signal in parallel by a multiplication/addition processing part 6, and each result of arithmetic operation is multiplied respectively by a weighting coefficient group 2 defined beforehand in accordance with the result of the arithmetic operation. After all these multiplied results are summed, the arithmetic operation to function-transform an obtained total sum by a non-linear function by a function transforming part 4 is repeated while determining the weighting coefficient group 2 by the learning by a coefficient learning part 5, and the input signal is information-separated.