Journal article
Convergence in neural memories
IEEE transactions on information theory, Vol.35(5), pp.1069-1072
09/1989
DOI: 10.1109/18.42222
Abstract
One of the simplest optimization problems solved by Ising spin models of neural memory is associative memory retrieval. The authors study deterministic convergence properties of the Hopfield synchronous retrieval algorithm for such models. In this case a memory, stored in the network by an appropriate choice of connections, is retrieved by setting the neural outputs to the binary pattern of the recall key (probe) and allowing the network to converge to a stable state. Precise conditions are developed that ensure that all stored memories are fixed points of the retrieval algorithm. An orthogonality-nearness criterion is then obtained for a memory probe itself to be a stationary point and thus outside the error-correcting capability of the memory. A local stability result quantifies the spatial relationship required for fast convergence.< >
Details
- Title: Subtitle
- Convergence in neural memories
- Creators
- Soura Dasgupta - Dept. of Electr. Eng., Iowa Univ., Iowa City, IA, USAAnjan Ghosh - Dept. of Electr. Eng., Iowa Univ., Iowa City, IA, USARobert Cuykendall - Dept. of Electr. Eng., Iowa Univ., Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- IEEE transactions on information theory, Vol.35(5), pp.1069-1072
- Publisher
- IEEE
- DOI
- 10.1109/18.42222
- ISSN
- 0018-9448
- eISSN
- 1557-9654
- Language
- English
- Date published
- 09/1989
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984083212402771
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