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Rule-based Speech Recognition Error Correction for Mobile Environment

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2012, 17(10), pp.25-33
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

김진형 1 So-Young Park 1

1상명대학교

Accredited

ABSTRACT

In this paper, we propose a rule-based model to correct errors in a speech recognition result in the mobile device environment. The proposed model considers the mobile device environment with limited resources such as processing time and memory, as follows. In order to minimize the error correction processing time, the proposed model removes some processing steps such as morphological analysis and the composition and decomposition of syllable. Also, the proposed model utilizes the longest match rule selection method to generate one error correction candidate per point, assumed that an error occurs. For the purpose of deploying memory resource, the proposedmodel uses neither the Eojeol dictionary nor the morphological analyzer, and stores a combined rule list without any classification. Considering the modification and maintenance of the proposed model, the error correction rules are automatically extracted from a training corpus. Experimental results show that the proposed model improves 5.27% on the precision and 5.60% on the recall based on Eojoel unit for the speech recognition result.

Citation status

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