Development of Output Correction Methodology for Long Short Term Memory-Based Speech Recognition

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Arslan R. S., BARIŞÇI N.

SUSTAINABILITY, cilt.11, sa.15, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 11 Sayı: 15
  • Basım Tarihi: 2019
  • Doi Numarası: 10.3390/su11154250
  • Dergi Adı: SUSTAINABILITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Anahtar Kelimeler: speech recognition, Long Short Term Memory (LSTM), speech output correction, most-matching, TRACKING, FEATURES
  • Gazi Üniversitesi Adresli: Evet

Özet

This paper presents a correction methodology for Long Short Term Memory (LSTM) based speech recognition. A strategy that validates with a reference database was developed for LSTM. It is conceptually simple but requires a large keyword database to match test templates. The correction method is based on the most matching method that is finding the word in which the system output is closest among the Referenced Template Database. Each LSTM model recognition output was corrected with the proposed new concept. Thus, system recognition performance was improved by correcting faulty outputs. The effectiveness, efficiency, and contribution of this approach to system performance were demonstrated by experiments. Tests carried out using different speech-text datasets and LSTM models yielded an average performance increase of 2.25%. With some advanced models, this ratio rises to 3.84%.