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Attractor neural networks with patchy connectivity
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- Johansson, Christopher, 1977- (author)
- KTH,Numerisk Analys och Datalogi, NADA
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- Rehn, Martin (author)
- KTH,Numerisk Analys och Datalogi, NADA
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- Lansner, Anders (author)
- KTH,Numerisk Analys och Datalogi, NADA
- (creator_code:org_t)
- 2007
- 2007
- English.
- In: ESANN 2005 Proceedings - 13th European Symposium on Artificial Neural Networks. - 2930307056 - 9782930307053 ; , s. 429-434
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- We investigate the effects of patchy (clustered) connectivity in sparsely connected attractor neural networks (NNs). This study is motivated by the fact that the connectivity of pyramidal neurons in layer II/III of the mammalian visual cortex is patchy and sparse. The storage capacity of hypercolumnar attractor NNs that use the Hopfield and Willshaw learning rules with this kind of connectivity is investigated analytically as well as by simulation experiments. We find that patchy connectivity gives a higher storage capacity, given an overall sparse connectivity and regardless of learning rule.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Annan data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Other Computer and Information Science (hsv//eng)
Keyword
- Artificial intelligence
- Cognitive systems
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