Ho-Kashyap content-addressable associative processors

The authors compare the storage capacity and other properties of various neural associative processors (APs) and find that the Ho-Kashyap (H-K) AP has the largest storage capacity and can handle linearly dependent keys. General memory (random keys) and distortion-invariant pattern-recognition APs are considered. A discussion is presented of a content-addressable structure that further improves recall accuracy and noise performance and decreases the size of the memory matrix. Results from the new H-K content-addressable AP are given. In all cases, the APs use only one pass (no iterations) in recall