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Author: Research Institute for Advanced Computer Science (U.S.)
Publisher:
ISBN:
Category : Neural networks (Computer science)
Languages : en
Pages : 58
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Author: Research Institute for Advanced Computer Science (U.S.)
Publisher:
ISBN:
Category : Neural networks (Computer science)
Languages : en
Pages : 58
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Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781730705878
Category :
Languages : en
Pages : 62
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Book Description
Sparse distributed memory is a generalized random access memory (RAM) for long (1000 bit) binary words. Such words can be written into and read from the memory, and they can also be used to address the memory. The main attribute of the memory is sensitivity to similarity, meaning that a word can be read back not only by giving the original write address but also by giving one close to it as measured by the Hamming distance between addresses. Large memories of this kind are expected to have wide use in speech recognition and scene analysis, in signal detection and verification, and in adaptive control of automated equipment, in general, in dealing with real world information in real time. The memory can be realized as a simple, massively parallel computer. Digital technology has reached a point where building large memories is becoming practical. Major design issues were resolved which were faced in building the memories. The design is described of a prototype memory with 256 bit addresses and from 8 to 128 K locations for 256 bit words. A key aspect of the design is extensive use of dynamic RAM and other standard components. Flynn, M. J. and Kanerva, P. and Bhadkamkar, N. Unspecified Center...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572
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Author: Pentti Kanerva
Publisher:
ISBN:
Category : Distributed artificial intelligence
Languages : en
Pages : 60
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Abstract: "This paper describes sparse distributed memory (SDM) as a neural-net associative memory. It is characterized by two weight matrices and by a large internal dimension -- the number of hidden units is much larger than the number of input or output units. The first matrix, A, is fixed and possibly random, and the second matrix, C, is modifiable. The paper compares and contrasts SDM to (1) computer memory, (2) correlation-matrix memory, (3) feed-forward artificial neural network, (4) cortex of the cerebellum, (5) Marr and Albus models of the cerebellum, and (6) Albus' cerebellar model arithmetic computer (CMAC). Several variations of the basic SDM design are discussed: the selected-coordinate and hyperplane designs of Jaeckel, the pseudorandom associative neural memory of Hassoun, and SDM with real-valued input variables by Prager and Fallside. SDM research conducted mainly at RIACS in 1986-1991 is highlighted."
Author: Pentti Kanerva
Publisher: MIT Press
ISBN: 9780262111324
Category : Computers
Languages : en
Pages : 194
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Book Description
Motivated by the remarkable fluidity of memory the way in which items are pulled spontaneously and effortlessly from our memory by vague similarities to what is currently occupying our attention "Sparse Distributed Memory "presents a mathematically elegant theory of human long term memory.The book, which is self contained, begins with background material from mathematics, computers, and neurophysiology; this is followed by a step by step development of the memory model. The concluding chapter describes an autonomous system that builds from experience an internal model of the world and bases its operation on that internal model. Close attention is paid to the engineering of the memory, including comparisons to ordinary computer memories."Sparse Distributed Memory "provides an overall perspective on neural systems. The model it describes can aid in understanding human memory and learning, and a system based on it sheds light on outstanding problems in philosophy and artificial intelligence. Applications of the memory are expected to be found in the creation of adaptive systems for signal processing, speech, vision, motor control, and (in general) robots. Perhaps the most exciting aspect of the memory, in its implications for research in neural networks, is that its realization with neuronlike components resembles the cortex of the cerebellum.Pentti Kanerva is a scientist at the Research Institute for Advanced Computer Science at the NASA Ames Research Center and a visiting scholar at the Stanford Center for the Study of Language and Information. A Bradford Book.
Author: James D. Roberts
Publisher:
ISBN:
Category : Computer algorithms
Languages : en
Pages : 762
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1592
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages :
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Author:
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ISBN:
Category : Evolutionary computation
Languages : en
Pages : 856
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Author: Research Institute for Advanced Computer Science (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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