인공지능 챗봇 음성인식의 오류분석 기반 유용도 탐색Exploring the efficacy of an AI chatbot-based automatic speech recognition based on a comparative error analysis
- Other Titles
- Exploring the efficacy of an AI chatbot-based automatic speech recognition based on a comparative error analysis
- Authors
- 정요한; 최인철
- Issue Date
- 2021
- Publisher
- 한국멀티미디어언어교육학회
- Keywords
- Artificial Intelligence(AI); Automatic Speech Recognition(ASR); Dialogflow; NLU; Natural Language Processing (NLP); chatbot; error analysis; machine learning
- Citation
- 멀티미디어 언어교육, v.24, no.4, pp.261 - 289
- Indexed
- KCI
- Journal Title
- 멀티미디어 언어교육
- Volume
- 24
- Number
- 4
- Start Page
- 261
- End Page
- 289
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/138565
- ISSN
- 1229-8107
- Abstract
- With the advent of Artificial Intelligence (AI) technology utilized in English classrooms, the present case study attempts to explore the strengths and limitations of Automatic Speech Recognition (ASR) supported by AI chatbots. This study selected 20 experimental sentences, which were found to be difficult for a Dialogflow-driven chatbot to recognize in EFL classes. Then, the number of successful speech recognition cases was measured on the basis of the speech uttered by three groups (i.e., native English speakers, Korean-English bilinguals, and EFL students). It showed that the chatbot found it difficult to recognize fast speech phenomena including Tapification and/or Contraction. Moreover, the chatbot recognized bilingual speakers' English pronunciation most accurately, followed by native English speakers and EFL students, which might be attributed to the ASR algorithm based on the spoken English as an International Language (EIL). An additional analysis employing the Praat revealed that this was due to the duration of speech and pauses and that this sophisticated technology did not appear to be fully functional in recognizing unstressed sounds with a low level of duration. Finally, the present study suggests some ideas for designing and utilizing chatbots to achieve a higher level of efficacy in TEFL.
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Collections - College of Education > Department of English Language Education > 1. Journal Articles
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