A characteristic or quality that is shared equally with another feature; a joint or equal feature.
From co- (together) + feature (from Old French feature, from Latin factura, a making or fashioning). The term developed in technical and analytic contexts where multiple characteristics needed to be described as equally prominent.
In linguistics and AI, when analyzing words or images, researchers identify cofeatures—qualities that appear together so consistently that they almost define each other. For instance, 'sharp corners' and 'geometric' are almost cofeatures of the concept 'crystal.'
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