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Learning of fuzzy spatial relations between handwritten patterns

Author

Listed:
  • Adrien Delaye
  • Eric Anquetil

Abstract

It is widely admitted that modelling of spatial information is very important for interpretation and recognition of handwritten expressions. Two distinct tasks have to be addressed by spatial models in this context. Evaluation task consists of measuring the correspondence between the relationship of two objects and a predefined model of spatial relation. Localisation task consists of retrieving objects that are related to a reference object according to a predefined model of spatial relation. In this work, we introduce a new modelling of relative spatial positioning that handles the two tasks under a unified framework and a training scheme for learning spatial models from data. The use of fuzzy mathematical morphology allows to deal with imprecision of positioning and to adapt to varying shapes of handwritten objects. Experimentations of the evaluation task over two datasets of online handwritten patterns prove that the proposed modelling outperforms commonly used relative positioning features.

Suggested Citation

  • Adrien Delaye & Eric Anquetil, 2014. "Learning of fuzzy spatial relations between handwritten patterns," International Journal of Data Mining, Modelling and Management, Inderscience Enterprises Ltd, vol. 6(2), pages 127-147.
    • Handle: RePEc:ids:ijdmmm:v:6:y:2014:i:2:p:127-147
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