Handwritten Digits Recognition by Bio-inspired Hierarchical Networks

  • Antonio G. Zippo
  • Giuliana Gelsomino
  • Sara Nencini
  • Gabriele E. M. Biella
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 19)


The human brain processes information showing learning and prediction abilities but the underlying neuronal mechanisms still remain unknown. Recently, many studies prove that neuronal networks are able of both generalizations and associations of sensory inputs.

In this paper, following a set of neurophysiological evidences, we propose a learning framework with a strong biological plausibility that mimics prominent functions of cortical circuitries. We developed the Inductive Conceptual Network (ICN), that is a hierarchical bio-inspired network, able to learn invariant patterns by Variable-order Markov Models implemented in its nodes. The outputs of the top-most node of ICN hierarchy, representing the highest input generalization, allow for automatic classification of inputs. We found that the ICN clusterized MNIST images with an error of 5.73% and USPS images with an error of 12.56%.


pattern recognition handwritten digits abstraction process hierarchical network 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Antonio G. Zippo
    • 1
  • Giuliana Gelsomino
    • 1
  • Sara Nencini
    • 1
  • Gabriele E. M. Biella
    • 1
  1. 1.Institute of Molecular Bioimaging and Physiology, Consiglio Nazionale delle RicercheMilanItaly

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