| Published Papers |
| No. | Title URL, Journal, Vol( Number), From Page- To Page, Publication date, DOI
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| 1 |
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| 2 | Which Type of Speaking Test Predicts L2 Overall Proficiency Most? , Asia TEFL Proceedings 2023, 1( 1), 453- 462, Feb. 2024,
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| 3 | POSSIBILITY OF L2 SHADOWING AS EFFECTIVE PRACTICE TO IMPROVE PROMPT SPEAKING SKILLS , Proceedings of 57th RELC International Conference, 1( 1), 11- 12, Mar. 2023,
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| 4 | DOES SHADOWING PRACTICE POTENTIALLY IMPROVE WORKING MEMORY CAPACITY AND L2 PROFICIENCY? , Proceedings of 57th RELC International Conference, 1( 1), 3- 3, Mar. 2023,
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| 5 | Effects of online language exchange on motivation, cultural awareness, and perception about language learning in a collegiate elementary level Japanese cours , Proceedings of the 36th Annual Conference of the Southeastern Association of Teachers of Japanese, 1( 1), 293- 308, Sep. 2021,
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| 6 | Development of a Vocabulary Size Test for Japanese EFL Learners Using the New JACET List of 38,000 Basic Words , JACET JOURNAL, 65( 1), 23- 46, Mar. 2021,
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| 7 | Learner Responses to Language Exchange Activities in a Technology-Mediated Environment in the COVID-19 Era , Proceedings of the 12th Asian Conference on Education, 1( 1), 1- 12, Dec. 2020,
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| 8 | Teaching and evaluating pronunciation of elementary school learners , Proceedings of annual research convention of phonetics society of Japan 2019, , 13-20- , Sep. 2019,
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| 9 | Prototyping a web-based phonetic training game to improve /r/-/l/ identification by Japanese learners of English , Proceedings of Speech and Language Technology in Education 2019, , 20-24- , Sep. 2019,
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| 10 | Automatic evaluation of simultaneous L2 oral reproduction tasks with a deep learning-based algorithm , Proceedings of Architectures and Mechanisms for Language Processing 2018, , 319-319- , Sep. 2018,
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| 11 | Objectively measured comprehensibility of non-native speech based on native speakers' shadowing , Proceedings of phonetic society of Japan, , 54-59- , Sep. 2018,
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| 12 | A study on improvement of noise reduction in automatic evaluation of shadowed speech , Proceedings of The Acoustical Society of Japan, , 829-832- , Sep. 2018,
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| 13 | Natives' shadowability as objectively measured comprehensibility of non-native speech , Proceedings of the 2nd International Symposium on Applied Phonetics (ISAPh2018), , 28-35- , Sep. 2018,
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| 14 | Objective measurement of comprehensibility through native listeners' shadowing , Proceedings of Japan Association for Language Education & Technology, , 162-163- , Aug. 2018,
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| 15 | Effects of continuous shadowing training on overall proficiency improvement of Japanese EFL learners , Proceedings of Japan Association for Language Education & Technology, , 160-161- , Aug. 2018,
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| 16 | Technology-based high variability training and its use to improve robustness of listening , Proceedings of Japan Association for Language Education & Technology, , 102-103- , Aug. 2018,
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| 17 | Automatic measurement of comprehensibility through native speakers’ responsive shadowing and its improvement based on regression analysis , Proceedings of Information Processing Society of Japan, 2018-SLP-123( 3), 1-6- , Jul. 2018,
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| 18 | A Study on comprehensibility measurement of non-native speakers' speech based on native speakers' shadowing , Proceedings of Acoustical Society of Japan, 2018-SLP-123( 4), 1-6- , Jul. 2018,
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| 19 | Automatic speech quality control of English listening materials and examination of Japanese learners’ listening ability in terms of robustness , Proceedings of the Institute of Electronics, Information and communication Engineers (IECE), , 1367-1370- , Jan. 2018,
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| 20 | DNN-based GOP and Its Application to Automatic Assessment of Shadowing Speeches  , Proceedings of Acoustic Society of Japan, 13, 1-6- 6, Feb. 2017, |
| 21 | Automatic scoring of shadowing speech based on DNN posteriors and their DTW , Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, 2017-, 1422- 1426, 2017, https://doi.org/10.21437/Interspeech.2017-728 |
| 22 | Performance Improvement of Automatic Pronunciation Assessment in a Noisy Classroom , Proc. IEEE Spoken Language Technology Workshop (SLT), , 428- 431, Dec. 2, 2012, https://doi.org/10.1109/slt.2012.6424262 |
| 23 | Interface of elementary school foreign language activity and speech-information processing technology , The Journal of the Acoustical Society of Japan, 66( 4), 184- 190, Apr. 1, 2010, |
| 24 | Development of a network-based learning system to enhance EFL vocabulary knowledge , The Journal of Tokyo International University The School of Business and Commerce, ( 79), 105- 124, 2009, |
| 25 | AUTOMATIC ASSESSMENT OF LANGUAGE PROFICIENCY THROUGH SHADOWING , 2008 6TH INTERNATIONAL SYMPOSIUM ON CHINESE SPOKEN LANGUAGE PROCESSING, PROCEEDINGS, , 41- 44, 2008,
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| 26 | A study on comparison between reading and listening vocabulary aimed to develop the network-based English vocabulary learning CALL system , The Journal of Tokyo International University The School of Business and Commerce, ( 78), 57- 76, 2008, |
| 27 | A study on effects of syntactic and semantic clues on identifying auditory unknown phrases in EFL listening comprehension , The Journal of Tokyo International University The School of Business and Commerce, ( 76), 105- 112, 2007, |
| 28 | An Analysis on the Effects on Language Learning in the CALL Classroom , The journal of Tokyo International University. The Department of Commerce, 62, 99- 115, Sep. 20, 2000, |
| 29 | Development of a Vocabulary Level Test for EFL Learners : The Relationship between learners' Vocabulary Size and Reading Comprehension Skills , The bulletin of the Kanto-koshin-etsu English Language Education Society, 10, 1- 13, 1996, https://doi.org/10.20806/katejo.10.0_1 |
| 30 | A Communicative Language Classroom Analysis Based on an ObservationSheet : The Effectiveness of the Jigsaw Listening Approach , Bulletin of the Center of Research and Guidance for Teaching Practice, 18, 45- 60, Mar. 31, 1994,
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| 31 |
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| 32 | Sequence and Feedback in Constructing a CALL System : Description of a Multimedia CALL System for Improving and Diagnosing Learners' English Listening Skills , Language Laboratory, 30, 77- 93, 1993, https://doi.org/10.24539/llaj.30.0_77 |
| 33 | Teaching Fast Reading in Junior High School : An Experimental Analysis on the Relationship between WPM, Learning Styles, and Reading Strategies , The bulletin of the Kanto-koshin-etsu English Language Education Society, 1, 11- 25, 1985, https://doi.org/10.20806/katejo.1.0_11 |
| Conference Activities & Talks |
| No. | Title, Conference, Publication date, Promoter, Venue
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| 1 | The effects of motivation types on L2 shadowing performances and overall proficiency, The 58th RELC International Conference 2024, Mar. 13, 2024, ,
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| 2 | How much does grammatical knowledge contribute to L2 shadowing performances and overall proficiency, The 58th RELC International Conference 2024, Mar. 13, 2024, ,
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| 3 | The relationship between sound change perception, L2 shadowing performances and overall proficiency, The 58th RELC International Conference 2024, Mar. 11, 2024, ,
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| 4 | The role of auditory working memory in L2 simultaneous oral reproduction processing, AMLaP 2023, Aug. 31, 2023, ,
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| 5 | Development of an online auditory working memory tst for L2 learners, AMLaP 2023, Aug. 31, 2023, ,
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| 6 | Development of an automatic system evaluating L2 oral performances using AI and recent speech, The 42nd Thailand TESOL International Conference 2023, Jan. 27, 2023, ,
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| 7 | Effects of continuous shadowing practice on L2 overall proficiency improvement, AILA World Congress 2021, Aug. 19, 2021, AILA, Holland
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| 8 | Effects of online language exchange on motivation, cultural awareness, and perception about language learning in a collegiate elementary level Japanese course, The 36th Annual Conference of the Southeastern Association of Teachers of Japanese, Feb. 27, 2021, ,
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| 9 | Validation of two productive tests compared to receptive vocabulary size and L2 overall proficiency, 40th Thailand TESOL and PAC International Conference 2020 Bangkok, Jan. 2020, ,
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| 10 | Validation of auditory and written grammatical judgement tests to measure grammatical knowledge and L2 proficiency, 40th Thailand TESOL and PAC International Conference 2020 Bangkok, Jan. 2020, ,
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| 11 | Development of online digit span tests to examine how working memory relates to L2 proficiency, 40th Thailand TESOL and PAC International Conference 2020 Bangkok, Jan. 2020, ,
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| 12 | Which vocabulary size can reflect L2 overall proficiency more accurately,auditory or written? - Perspectives from the Ambiguity Tolerance Theory, Applied Linguistics Conference 2019, Nov. 2019, ,
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| 13 | Effects of continuous simultaneous oral reproduction practice on L2 overall proficiency improvement: Perspectives form the Cognitive Load Theory, Architectures and Mechanisms for Language Processing 2019, Sep. 2019, ,
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| 14 | Using artificial speaker variability in High Variability Phonetic Training, Acoustical Society of Japan, Sep. 2019, ,
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| 15 | Consideration of teaching pronunciation of elementary school learners, Phonetic Society of Japan, Sep. 2019, ,
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| 16 | Development of an online test to examine the relationship between size, recognition time and automaticity of L2 auditory and spoken vocabulary, EuroCALL 2019 UC Louvain, Belgium, Aug. 2019, ,
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| 17 | Computer-aided high variability phonetic training to improve robustness of learners’ listening comprehension, International Conference of Phonetic Science 2019, Aug. 2019, ,
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| 18 | Development and validation of an online test to measure automaticity in L2 vocabulary recognition process, Asia TESL 2019 Bangkok, Jun. 2019, ,
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| 19 | An experimental study of influence of classroom babble noise on automatic assessment of learners’ shadowing speech, The Institute of Electronics, Information and Communication Engineers, Mar. 2019, ,
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| 20 | Inter-learner shadowing with speech technologies enables automatic and objective measurement of comprehensibility of learners' utterances, The American Association for Applied Linguistics Conference (AAAL 2019), Mar. 2019, ,
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| 21 | How much does automatic evaluation based on deep neural network GOP cover prosodic features in L2 oral task assessment?, The American Association for Applied Linguistics Conference (AAAL 2019), Mar. 2019, ,
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| 22 | Verification of Cognitive Load Theory: how much does continuous simultaneous oral reproduction training improve L2 overall proficiency?, The American Association for Applied Linguistics Conference (AAAL 2019), Mar. 2019, ,
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| 23 | An experimental study of influence of classroom babble noise on automatic assessment of learners’ shadowing speech, The Institute of Electronics, Information and Communication Engineers, 2019, ,
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| 24 | Development of an online L2 vocabulary test and the relationship between spoken and written vocabulary and overall proficiency, The 5th International Conference on Foreign Language Learning and Teaching (FLLT2018), Dec. 2018, ,
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| 25 | Natives' shadowability as objectively measured comprehensibility of non-native speech, The 2nd International Symposium on Applied Phonetics (ISAPh2018), Sep. 2018, ,
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| 26 | Development of an innovative multi-lingual system for automatic evaluation of L2 oral reproduction tasks using a deep learning algorithm,, Architectures and Mechanisms for Language Processing (AMLaP 2018), Sep. 2018, ,
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| 27 | Development of a mutual evaluation system of English presentations based on active learning, Japan Society for Educational Technology, Sep. 2018, ,
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| Research Grants & Projects |
| No. | Offer organization, System name, Title, Fund classification, Date
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| 1 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Measurement and modeling of cognitive breakdown and their use to enhance cognitive robustness for international oral communication, , Apr. 2022 - Mar. 2026
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| 2 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Development of a new system employing the automatic evaluation function of L2 shadowing to enhance communicative English skills, competitive_research_funding, Apr. 2022 - Mar. 2026
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| 3 | Japan Society for the Promotion of Science, , Examining English skill necessary for pilot training course and development of autonomous learning system, competitive_research_funding, Apr. 2019 - Mar. 2023
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| 4 | Japan Society for the Promotion of Science, , Development of shadowing materials and practical study to improve Japanese communication skills of Japanese learners overseas, competitive_research_funding, Apr. 2018 - Mar. 2022
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| 5 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A), Development of L2 speech training infrastructure for objective measurement of speech comprehensibility based on native speakers' shadowing, competitive_research_funding, Apr. 2018 - Mar. 2022
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| 6 | Japan Society for Educational Technology, , Development of automatic evaluation system of multilingual shadowing performances and applied research for foreign language education, competitive_research_funding, Apr. 2016 - Mar. 2022
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| 7 | Japan Society for the Promotion of Science, , Development of automatic evaluation system and material database for autonomous learning of English shadowing, competitive_research_funding, 2016 - 2019
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| 8 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Development and Experimental Use of Shadowing Materials to Enhance Japanese Language Proficiency of Overseas Learners, , Apr. 2015 - Mar. 2018
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| 9 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Individual-based and automatic clustering of World Englishes and its application to assist international communication, , Apr. 2014 - Mar. 2018
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| 10 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Development of an Automatic Evaluation System of Reading-aloud Performances by EFL Japanese Learners Using the Latest Speech Information Technologies, , Apr. 2013 - Mar. 2016
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| 11 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Robust and accurate analysis of pronunciation based on structural representation of speech and machine learning and its application to foreign language learning, , Apr. 2011 - Mar. 2015
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| 12 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Development of an Automatic Evaluation System of Reading-Aloud and Shadowing Performances by Japanese EFL Learners Using the Latest Speech Technology, , 2009 - 2012
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| 13 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Technical development of environments for learning and teaching foreign languages by using structural representation of pronunciation, , 2008 - 2010
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| 14 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, A Study of Theories and Methods to Measure EFL Listening Comprehension Skills with Special Reference to the National Center Test, , 2006 - 2007
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| 15 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Support of Foreign Language Pronunciation Training of Primary School Students Based on Comprehensive Description of the Pronunciation, , 2005 - 2007
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| 16 | Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, An Interactional Study in Spoken English Communication -Relationship between Communicative Competence and Communication Strategy, , 2004 - 2005
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