The Linguatorium project translates research findings into practice by developing innovative computer-assisted language learning tools. Please visit to learn more about our research activity, or if you are interested in collaboration opportunities.
Research papers
published in peer-reviewed scholarly journals
Manman Qian,
Evgeny Chukharev-Hudilainen, &
John Levis (2018)
A system for adaptive high-variability segmental perceptual training: implementation, effectiveness, transfer
Language Learning & Technology 22(1), 69-96, DOI:10125/44582

This paper introduces the first version of Linguatorium Auris, a system for segmental perceptual training that utilizes corpus-based word frequency lists, high variability phonetic input, and text-to-speech technology to automatically create discrimination and identification perception exercises customized for individual learners. The effectiveness of this system is evaluated in an experiment with a pre-/post-test design involving 32 adult Russian-speaking learners of English as a foreign language (EFL).
Evgeny Chukharev-Hudilainen &
Tatiana A. Klepikova (2016)
The effectiveness of computer-based spaced repetition in foreign language vocabulary instruction: A double-blind study
CALICO Journal, 33(3), 334-354, DOI: 10.1558/cj.v33i3.26055

The purpose of this paper is twofold: First, we present an empirical study evaluating the effectiveness of Linguatorium Lexis. The study demonstrated that by spending an average of three minutes each day on automatically generated vocabulary activities, students increased their long-term vocabulary retention rate threefold. Second, we demonstrate that the double-blind experiment design, which is the standard in such high-stakes fields as healthcare, has potential for research in computer-assisted language learning.

This paper won CALICO Journal's award for best article of the year.
Tatiana A. Klepikova &
Evgeny Chukharev-Hudilainen (2013)
Speech synthesis technologies in teaching English vocabulary
Izvestija SPbGUEF, 2013(2), 75-79

This article is a short paper published in a Russian-language peer-reviewed journal. In the article, we describe two small-scale experiments that point towards the value of text-to-speech (TTS) in generating vocabulary-learning activities. TTS voice quality was found to have no significant effect on learning gains, although students strongly preferred high-quality voices.
Select conference presentations
  1. Chukharev-Hudilainen, E. (2019, June). Turning Research into Practice: Design Principles of ICALL Applications. Keynote presented at the JALTCALL 2019 Conference at Aoyama Gakuin University, Japan.
  2. Chukharev-Hudilainen, E. (2019, March). High-Variability Phonetic Training in teaching speaking and listening. Paper presented at the TESOL conference in Atlanta, Georgia.
  3. Chukharev-Hudilainen, E. (2018, September). High-Variability Phonetic Training: the missing block in teaching oral communication. Paper presented at the MidTESOL conference in Kansas City, Missouri.
  4. Chukharev-Hudilainen, E. (2017, March). A research-based system for the learning of vocabulary and pronunciation. Paper presented at the TESOL Convention, Seattle, Washington.
  5. Qian, M., Chukharev-Hudilainen, E., & Levis, J. (2017, March). The effect of learner-customized high-variability training on English learners' perception of vowels and consonants in words and sentences. Paper presented at the 2017 conference of the American Association for Applied Linguistics (AAAL), Portland, Oregon.
  6. Qian, M., Chukharev-Hudilainen, E., & Levis, J. (2016, August). A self-access computer-assisted HVPT application for learner diagnostic and perceptual training on English segmentals. Paper presented at the 8th Pronunciation in Second Language Learning and Teaching (PSLLT) conference, Calgary, Canada.
  7. Chukharev-Hudilainen, E. (2015, November). Combining linguistics, computer science, and language pedagogy: motivation, challenges, results. Invited presentation at the University of Notre Dame, Notre Dame, Indiana.
  8. Chukharev-Hudilainen, E., & Chukhareva-Hudilainen, A. (2014, April). Linguatorium: an intelligent vocabulary tutoring system. Paper presented at the learning symposium "The World in Words: Teaching and learning academic vocabulary" at Michigan State University, East Lansing, Michigan.
  9. Chukharev-Hudilainen, E. (2013, October). Empowering CALL with biometrics: eye-tracking and key-stroke logging. Paper presented at the Technology for Second Language Learning (TSLL) conference at Iowa State University, Ames, Iowa.
  10. Chukharev-Hudilainen, E. (2013, May). Corpus-based intelligent language tutoring systems. Invited presentation at the conference "CALLing Corpora" at St. Petersburg State University of Economics, St. Petersburg, Russia.
  11. Chukharev-Hudilainen, E. & Klepikova, T. A. (2012, September). Linguatorium in teaching English writing for specific purposes. Paper presented at the Technology for Second Language Learning (TSLL) conference at Iowa State University, Ames, Iowa.
  12. Chukharev-Hudilainen, E. (2012, April). A multilevel model of lexical memory in a tutoring system. Paper presented at the Applied Linguistics in Research and Education conference at Herzen University, St. Petersburg, Russia.
  13. Nesmejanow, A. W. & Chukharev-Hudilainen, E. (2011, May). An adaptive tutoring system in teaching foreign languages for specific purposes. Paper presented at the Management and Regulation in Social and Economic Systems conference at Minsk Institute of Management, Minsk, Belarus.