An Anticipatory Self-Organized Map for Robust Recognition

S. Swarup, K. Lakkaraju, A. Klementiev, S.R. Ray (USA), and E. Sassen (Germany)

Keywords

Anticipation, SelfOrganized Maps, Neural Networks, Temporal Prediction.

Abstract

When performing any real-time detection task, such as face detection, speech recognition, etc., we can take advantage of the temporal correlations within the data stream. This can help us make detection more robust by using anticipa tions about the target to overcome the variance due to noise. We present an extended self-organized map that uses lateral weights between the nodes to learn temporal relations be tween clusters. These weights are then used during recog nition to bias certain nodes to win the competition. This converts the self-organized map from a maximum likeli hood to a maximum a posteriori estimator. We present an experiment using artificial data to demonstrate the benefit of the anticipatory self-organized map.

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