Decision fusion for postal address recognition using belief functions

  • Authors:
  • David Mercier;Geneviève Cron;Thierry Denux;Marie-Hélène Masson

  • Affiliations:
  • UMR CNRS 6599 Heudiasyc Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne cedex, France and SOLYSTIC, 14 Avenue Raspail, F-94257 Gentilly Cedex, France;SOLYSTIC, 14 Avenue Raspail, F-94257 Gentilly Cedex, France;UMR CNRS 6599 Heudiasyc Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne cedex, France;UMR CNRS 6599 Heudiasyc Université de Technologie de Compiègne, BP 20529, F-60205 Compiègne cedex, France

  • Venue:
  • Expert Systems with Applications: An International Journal
  • Year:
  • 2009

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Abstract

Combining the outputs from several postal address readers (PARs) is a promising approach for improving the performances of mailing address recognition systems. In this paper, this problem is solved using the Transferable Belief Model, an uncertain reasoning framework based on Dempster-Shafer belief functions. Applying this framework to postal address recognition implies defining the frame of discernment (or set of possible answers to the problem under study), converting PAR outputs into belief functions (taking into account additional information such as confidence scores when available), combining the resulting belief functions, and making decisions. All these steps are detailed in this paper. Experimental results demonstrate the effectiveness of this approach as compared to simple combination rules.