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DOI: 10.14569/IJACSA.2016.070358
PDF

Modified Grapheme Encoding and Phonemic Rule to Improve PNNR-Based Indonesian G2P

Author 1: Suyanto
Author 2: Sri Hartati
Author 3: Agus Harjoko

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 7 Issue 3, 2016.

  • Abstract and Keywords
  • How to Cite this Article
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Abstract: A grapheme-to-phoneme conversion (G2P) is very important in both speech recognition and synthesis. The existing Indonesian G2P based on pseudo nearest neighbour rule (PNNR) has two drawbacks: the grapheme encoding does not adapt all Indonesian phonemic rules and the PNNR should select a best phoneme from all possible conversions even though they can be filtered by some phonemic rules. In this paper, a modified partial orthogonal binary grapheme encoding and a phonemic-based rule are proposed to improve the performance of PNNR-based Indonesian G2P. Evaluating on 5-fold cross-validation, contain 40K words to develop the model and 10K words to evaluation each, shows that both proposed concepts reduce the relative phoneme error rate (PER) by 13.07%. A more detail analysis shows the most errors are from grapheme ?e? that can be dynamically converted into either /E/ or /??/ since four prefixes, ’ber’, ’me’, ’per’, and ’ter’, produce many ambiguous conversions with basic words and also from some similar compound words with both different pronunciations for the grapheme ?e?. A stemming procedure can be applied to reduce those errors.

Keywords: Modified grapheme encoding; phonemic rule; In-donesian grapheme-to-phoneme conversion; pseudo nearest neigh-bour rule

Suyanto , Sri Hartati and Agus Harjoko, “Modified Grapheme Encoding and Phonemic Rule to Improve PNNR-Based Indonesian G2P” International Journal of Advanced Computer Science and Applications(IJACSA), 7(3), 2016. http://dx.doi.org/10.14569/IJACSA.2016.070358

@article{2016,
title = {Modified Grapheme Encoding and Phonemic Rule to Improve PNNR-Based Indonesian G2P},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2016.070358},
url = {http://dx.doi.org/10.14569/IJACSA.2016.070358},
year = {2016},
publisher = {The Science and Information Organization},
volume = {7},
number = {3},
author = {Suyanto and Sri Hartati and Agus Harjoko}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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