Relevance of Dynamic Clustering to Biological Networks

Details Relevance of Dynamic Clustering to Biological Networks Relevance of Dynamic Clustering to Biological Networks

1993-11-25

arxiv.org/abs/chao-dyn/9311008v1

Nonlinear Sciences

Chaotic Dynamics

submitted to Physica D, no figures included

Scientific paper

10.1016/0167-2789(94)90274-7

Network of nonlinear dynamical elements often show clustering of synchronization by chaotic instability. Relevance of the clustering to ecological, immune, neural, and cellular networks is discussed, with the emphasis of partially ordered states with chaotic itinerancy. First, clustering with bit structures in a hypercubic lattice is studied. Spontaneous formation and destruction of relevant bits are found, which give self-organizing, and chaotic genetic algorithms. When spontaneous changes of effective couplings are introduced, chaotic itinerancy of clusterings is widely seen through a feedback mechanism, which supports dynamic stability allowing for complexity and diversity, known as homeochaos. Second, synaptic dynamics of couplings is studied in relation with neural dynamics. The clustering structure is formed with a balance between external inputs and internal dynamics. Last, an extension allowing for the growth of the number of elements is given, in connection with cell differentiation. Effective time sharing system of resources is formed in partially ordered states.

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