Entropy-based Stability of Fractional Self-Organizing Maps with Different Time Scales

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C.A Pena Fernandez
C.A Pena Fernandez

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The behavior of self-organizing neural maps, which develop through a combination of long and short-term memory, involves different time scales. Such a neural network’s activity is characterized by a neural activity equation representing the fast phenomenon and a synaptic information efficiency equation representing the slow part of the neural system. The work reported here proposes a new method to analyze the dynamics of self-organizing maps based on the flow-invariance principle, considering the performance of the system’s different time scales. In this approach, the equilibrium point is determined based on the estimate for the entropy at each iteration of the learning rule, which is generally sufficient to analyze existence and uniqueness. In this sense, the viewpoint reported here proves the existence and uniqueness of the equilibrium point on a fractional approach by using a Lyapunov method extension for Caputo derivatives when 0 < 𝛼𝛼 < 1. Furthermore, the global exponential stability of the equilibrium point is proven with a strict Lyapunov function for the flow of the system with different time scales and some numerical simulations.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

C.A Pena Fernandez. 2026. \u201cEntropy-based Stability of Fractional Self-Organizing Maps with Different Time Scales\u201d. Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 24 (GJSFR Volume 24 Issue F1): .

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Analyzes entropy-based stability in fractional self-organizing maps with different time scales. Focuses on improving neural network robustness.
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GJSFR Volume 24 Issue F1
Pg. 51- 66
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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v1.2

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February 19, 2024

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English

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The behavior of self-organizing neural maps, which develop through a combination of long and short-term memory, involves different time scales. Such a neural network’s activity is characterized by a neural activity equation representing the fast phenomenon and a synaptic information efficiency equation representing the slow part of the neural system. The work reported here proposes a new method to analyze the dynamics of self-organizing maps based on the flow-invariance principle, considering the performance of the system’s different time scales. In this approach, the equilibrium point is determined based on the estimate for the entropy at each iteration of the learning rule, which is generally sufficient to analyze existence and uniqueness. In this sense, the viewpoint reported here proves the existence and uniqueness of the equilibrium point on a fractional approach by using a Lyapunov method extension for Caputo derivatives when 0 < 𝛼𝛼 < 1. Furthermore, the global exponential stability of the equilibrium point is proven with a strict Lyapunov function for the flow of the system with different time scales and some numerical simulations.

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Entropy-based Stability of Fractional Self-Organizing Maps with Different Time Scales

C.A Pena Fernandez
C.A Pena Fernandez

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