Stochastic Associative Processor Operated by Random Voltages(LSI Applications,<Special Section>Fundamentals and Applications of Advanced Semiconductor Devices)
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概要
- 論文の詳細を見る
The latest LSIs still lack performance in pattern matching and picture recognition. Living organisms, on the other hand, devote very little energy to processing of this type, suggesting that they operate according to a fundamentally different concept. There is a notable difference between the two types of processing: the most similar pattern is always chosen by the conventional digital pattern matching process, whereas the choice made by an organism is not always the same: both the most similar patterns and other similar patterns are also chosen stochastically. To realize processing of this latter type, we examined a calculation method for stochastically selecting memorized patterns that show greater similar to the input pattern. Specifically, by the use of a random voltage sequence, we executed stochastic calculation and examined to what extent the accuracy of the solution is improved by increasing the number of random voltage sequences. Although calculation of the Manhattan distance cannot be realized by simply applying stochastic computing, it can be done stochastically by inputting the same random voltage sequence to two modules synchronously. We also found that the accuracy of the solution is improved by increasing the number of random voltage sequences. This processor operates so efficiently that the power consumption for calculation does not increase in proportion to the number of memorized vector elements. This characteristic is equivalent to a higher accuracy being obtained by a smaller number of random voltage sequences: a very promising characteristic of a stochastic associative processor.
- 社団法人電子情報通信学会の論文
- 2007-05-01
著者
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YAMASHITA Ichiro
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd.
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Setsune Kentaro
Corporate R & D Strategy Office Matsushita Electric Industrial Co. Ltd. (panasonic)
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UEDA Michihito
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd. (Panasonic)
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MORITA Kiyoyuki
Advanced Technology Research Laboratories, Matsushita Electric Industrial Co., Ltd. (Panasonic)
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Ueda Michihito
Advanced Technology Research Laboratories Matsushita Electric Industrial Co. Ltd. (panasonic)
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Morita Kiyoyuki
Advanced Technology Research Laboratories Matsushita Electric Industrial Co. Ltd. (panasonic)
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Yamashita Ichiro
Advanced Technology Research Laboratories Panasonic Corporation
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Morita Kiyoyuki
Advanced Technology Research Laboratories Matsushita Electric Industrial Co. Ltd.
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Ueda Michihito
Advanced Technology Research Laboratories Matsushita Electric (panasonic) Industrial Co. Ltd.
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Yamashita Ichiro
Advanced Technology Research Laboratories Matsushita Electric Industrial Co. Ltd. (panasonic)
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Yamashita Ichiro
Advanced Technology Research Laboratories Matsushita Electric Industrial Co. Ltd.
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