CPC G06N 3/063 (2013.01) [G06F 7/383 (2013.01); G06F 7/50 (2013.01); G06F 7/523 (2013.01); G06F 7/5443 (2013.01)] | 14 Claims |
1. A product-sum operation device comprising a product operator and a sum operator, wherein the product operator includes a plurality of product operation elements and at least one alternative element that, when any of the plurality of product operation elements has malfunctioned, is used instead of the malfunctioning product operation element,
the plurality of product operation elements and the alternative element are each a resistance change element,
the sum operator includes an output detector, and
the output detector is configured to detect a sum of outputs from a plurality of product operation elements connected to the same line when the alternative element is not used.
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