2005 Special Issue: Recursive neural networks for processing graphs with labelled edges: theory and applications

  • Authors:
  • M. Bianchini;M. Maggini;L. Sarti;F. Scarselli

  • Affiliations:
  • Dipartimento di Ingegneria dell'Informazione Universití degli Studi di Siena Via Roma, 56 53100 - Siena (Italy);Dipartimento di Ingegneria dell'Informazione Universití degli Studi di Siena Via Roma, 56 53100 - Siena (Italy);Dipartimento di Ingegneria dell'Informazione Universití degli Studi di Siena Via Roma, 56 53100 - Siena (Italy);Dipartimento di Ingegneria dell'Informazione Universití degli Studi di Siena Via Roma, 56 53100 - Siena (Italy)

  • Venue:
  • Neural Networks - Special issue on neural networks and kernel methods for structured domains
  • Year:
  • 2005

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Abstract

In this paper, we introduce a new recursive neural network model able to process directed acyclic graphs with labelled edges. The model uses a state transition function which considers the edge labels and is independent both from the number and the order of the children of each node. The computational capabilities of the new recursive architecture are assessed. Moreover, in order to test the proposed architecture on a practical challenging application, the problem of object detection in images is also addressed. In fact, the localization of target objects is a preliminary step in any recognition system. The proposed technique is general and can be applied in different detection systems, since it does not exploit any a priori knowledge on the particular problem. Some experiments on face detection, carried out on scenes acquired by an indoor camera, are reported, showing very promising results.