INFORMATION PROCESSING APPARATUS AND MEMORY SYSTEM

An information processing apparatus configured to detect similarity between a first vector having a plurality of elements and a second vector having a plurality of elements based on an inner product value of the first vector and the second vector, the information processing apparatus has a wiring line having a current flowing therethrough, the current being a sum of currents each corresponding to a product of a value obtained by subtracting one of the elements of the first vector from a reference value and a corresponding one of the elements of the second vector, a sense amplifier configured to sense a voltage on the wiring line, and a similarity detection circuit configured to detect the similarity based on an output signal of the sense amplifier.