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Balancing error and supervision effort in interactive-predictive handwriting recognition

Published: 07 February 2010 Publication History

Abstract

An effective approach to transcribe handwritten text documents is to follow an interactive-predictive paradigm in which both, the system is guided by the user, and the user is assisted by the system to complete the transcription task as efficiently as possible. This approach has been recently implemented in a system prototype called GIDOC, in which standard speech technology is adapted to handwritten text (line) images: HMM-based text image modeling, n-gram language modeling, and also confidence measures on recognized words. Confidence measures are used to assist the user in locating possible transcription errors, and thus validate system output after only supervising those (few) words for which the system is not highly confident. However, a certain degree of supervision is required for proper model adaptation from partially supervised transcriptions. Here, we propose a simple yet effective method to find an optimal balance between recognition error and supervision effort.

References

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D. Pérez et al. The GERMANA database. In ICDAR, pages 301--305, Barcelona (Spain), 2009.
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O. Ramos, N. Serrano, and A. Juan. Interactive-predictive detection of handwritten text blocks. In DRR XVII, San Jose (USA), 2010.
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N. Serrano, F. Castro, and A. Juan. The RODRIGO database. In LREC, 2010. (submitted).
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N. Serrano, D. Pérez, A. Sanchis, and A. Juan. Adaptation from partially supervised handwritten text transcriptions. In ICMI-MLMI, Cambridge (USA), 2009.
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L. Tarazón et al. Confidence Measures for Error Correction in Interactive Transcription of Handwritten Text. In ICIAP, Vietri sul Mare (Italy), 2009.
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A. H. Toselli et al. Integrated handwriting recognition and interpretation using finite-state models. IJPRAI, 18(4):519--539, 2004.

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cover image ACM Conferences
IUI '10: Proceedings of the 15th international conference on Intelligent user interfaces
February 2010
460 pages
ISBN:9781605585154
DOI:10.1145/1719970
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 07 February 2010

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Author Tags

  1. computer-assisted text transcription
  2. confidence measures
  3. document analysis
  4. handwriting recognition

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