Volume: 16, Issue: 6(2006)
pp. 393-403 DOI: 10.1142/S0129065706000809
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Full Text (PDF, 660KB)
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| Title: |
CLUSTERING OF STORED MEMORIES IN AN ATTRACTOR NETWORK WITH LOCAL COMPETITION |
| Author(s): |
CHRISTOPHER JOHANSSON
Corresponding author.
School of Computer Science and Communication, Royal Institute of Technology, Roslagstullsbacken 35, Stockholm, 100 44, SwedenÖRJAN EKEBERG
School of Computer Science and Communication, Royal Institute of Technology, Roslagstullsbacken 35, Stockholm, 100 44, SwedenANDERS LANSNER
School of Computer Science and Communication, Royal Institute of Technology, Roslagstullsbacken 35, Stockholm, 100 44, Sweden
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| History: |
Received 28 March 2006
Revised 2 October 2006
Accepted 3 November 2006
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| Abstract: |
In this paper we study an attractor network with units that compete locally for activation and we prove that a reduced version of it has fixpoint dynamics. An analysis, complemented by simulation experiments, of the local characteristics of the network's attractors with respect to a parameter controlling the intensity of the local competition is performed. We find that the attractors are hierarchically clustered when the parameter of the local competition is changed. |
| Keywords: |
Attractor neural network; local competition; hypercolumn; hierarchical clustering; memory clustering
PACS numbers:
84.35.+i, 07.05.Mh, 05.45.-a
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