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RESEARCH INTERESTS

Automatic Speech Recognition, Assistive Technologies, Application of Speech and Language Technologies to Education, Machine Learning, Pattern Recognition, Signal Processing

CURRENT RESEARCH PROJECTS

1. ​Dialect Mapping for Non-traditional Varieties of English
2. Automated detection and Quantification of Coffee Leaf Rust Disease
3. A speech-enabled Literacy Tutor for Caribbean Dialects
   1. Jump Start (Jamaican English)
   2. Bright Start (Trinidadian English)
4. Using Spoken Language Technology to integrate the deaf in hearing only classrooms.
5. Using Computational Auditory Scene Analysis to improve hearing aid performance

PREVIOUS RESEARCH PROJECTS

1. PhD “Exploiting Primitive Grouping Constraints for Noise Robust Automatic Speech Recognition: Studies with Simultaneous Speech” - My thesis employed techniques inspired by human auditory processing to recognise speech corrupted with non-stationary noise. The approach is an extension of the Speech Fragment Decoding approach to robust Automatic Speech Recognition (ASR) developed at the University of Sheffield.
2. Corpus Collection for Development of an Automated Literacy Tutor
3. Capacity Building in Medical Physics/Bio-medical Engineering Research and Teaching
4. A statistical machine translation tool to facilitate translations between English and Samoan for tourists
5. A Cloud-based computational resource for Clinical and educational Applications of Speech Technology.
6. Enhancing the Robustness of Non-contact Video-based Monitoring of Vital Signs

PUBLICATIONS

1. A. Coy, Emulating Human Speech Recognition: A Scene Analysis Approach to Improving Robustness in Automatic Speech Recognition, 2012, Nova Science Publishers, New York.
2. A. Coy, Y. Hayashi, M. Chang (Editors). (2019). Intelligent Tutoring Systems:15th International Conference, ITS 2019. Springer: Lecture Notes in Computer Science book series (LNCS, volume 11528). Springer, Switzerland.

Book Chapters

1. A. Coy. (2022). Barriers to Technology-enabled Education for the Deaf in the Caribbean. In S. N. J. Blackman (Ed.). Equitable Education for Marginalized Youth in Latin America and the Caribbean. New York: Routledge.
2. A. Coy, Perceptually Motivated Approach to Achieving Robustness in Automatic Speech Recognition, in A. Stavros, Editor, Advances in Communications and Media Research, Volume 6, 2011, Nova Science Publishers, New York.

Refereed Journal Articles

1. A. Coy, P. S. Mohammed, A. Hosein, P. Skerrit, A. Mohammed, Y. Lewis-Fokum. Increasing the Integration of Computer-Assisted Language Learning in Caribbean Schools: Lessons from the Use of an Intelligent Spelling Tutor During COVID-19. Journal of Eastern Caribbean Studies. (In Press).
2. A. Coy and S. Watson (2020). Acoustic Similarity of Inner and Outer Circle Varieties of Child-Produced English Vowels. Journal of Speech, Language, and Hearing Research, 63(3), 722-737.
3. A. Coy, S. James-Williamson, S. Bramwell-Lalor, N. Sadler-McKnight, N. McLean, V. R. Penugonda and M. Rainford. (2019). A Review of a Tertiary Level Institution’s Initiative for Enhancing Education in STEM at the Secondary School Level. Journal of Education and Development in the Caribbean. Vol. 18(1), 132-182.
4. G. Yan, L. Li, A. Coy, X. Mu, S. Chen, D. Xie, W. Zhang and H. Zhou. (2019). Improving the Estimation of Fractional Vegetation Cover from UAV RGB Imagery by Colour Unmixing. ISPRS Journal of Photogrammetry and Remote Sensing. Vol 158, 23-34.
5. S. Cunningham, P. Green, H. Christensen, J.J. Atria, A. Coy, M. Malavasi, L. Desideri and F. Rudzicz, 2017. Cloud-Based Speech Technology for Assistive Technology Applications (CloudCAST), Studies in Health Technology and Informatics, 242, pp.322-329.
6. M. Malavasi, E. Turri, J.J. Atria, H. Christensen, R. Marxer, L. Desideri, A Coy, F. Tamburini, P. Green, 2017. An Innovative Speech-Based User Interface for Smarthomes and IoT Solutions to Help People with Speech and Motor Disabilities. Studies in Health Technology and Informatics, 242, pp.306-313.
7. R. Irvine, A. Coy, M. Voutchkov. (2016) An Overview of Cardiac Pacing in Jamaica. Part I: Demographic Factors, West Indian Medical Journal. DOI: 10:7727/wimj.2016.1431
8. R. Irvine, A. Coy, M. Voutchkov. (2016). An Overview of Cardiac Pacing in Jamaica. Part II: Indications, Modes and Arrhythmia Prevalence, West Indian Medical Journal. DOI:10:7727/wimj.2016.432
9. A. Coy, D.R. Rankine, M.A. Taylor, J.E. Cohen, D. Nielsen. Increasing the Accuracy and Automation of Fractional Vegetation Cover Estimation from Digital Photographs, Remote Sensing, 8(7), 474, 2016
10. D.R. Rankine, J.E. Cohen, M.A. Taylor, A. Coy, L.A. Simpson, T. Stephenson, and J.L. Lawrence, Parameterizing the FAO AquaCrop Model for Rain-fed and Irrigated Field Grown Sweet Potato (Ipomoea batatas), Agronomy, 107:1-13, 2015
11. A. Coy, On the Use of Automatic Speech Recognition to Facilitate Increased Literacy Rates in Jamaica, International Journal for Cross-Disciplinary Subjects in Education (IJCDSE), Special Issue Volume 3, Issue 1, 1379-1386, 2013. ISSN 2042 6364
12. J. Barker, N. Ma, A. Coy and M. Cooke, Speech Fragment Decoding Techniques for Simultaneous Speaker Identification and Speech Recognition, Computer Speech and Language, 24(1):94-111, 2010
13. N. Ma, P. Green, J. Barker and A. Coy, Exploiting Correlogram Structure for Robust Speech Recognition with Multiple Speech Sources, Speech Communication, 49(12), 874 – 891, 2007
14. A. Coy and J. Barker, An Automatic Speech Recognition System Based on the Scene Analysis Account of Auditory Perception, Speech Communication, 49(5), 384 – 401, 2007

Refereed Conference Papers

1. P.S. Mohammed, A. Coy, P. Skerrit, Y. Lewis-Fokum, A. Mohammed, A. Hosein. The Importance of Culturally-Situated Design on Children’s Interaction with Speech-Enabled Features in an Online Spelling Tutor. In Proceedings 24th International Conference on Human-Computer Interaction (HCII2022), 2022.
2. P. Mohammed and A. Coy. Culturally Aware Intelligent Learning Environments for Resource-poor Countries. In Proceedings 23rd International Conference on Human-Computer Interaction (HCII2021), 2021.
3. L. Falconer, A. Coy and J. Barker. "Modeling the Effects of Hearing Aid Algorithms on Speech and Speaker Intelligibility as Perceived by Listeners with Simulated Sensorineural Hearing Impairment." SoutheastCon 2021.
4. S. Watson and A. Coy. Jamlit: A Corpus of Jamaican Standard English for Automatic Speech Recognition of Children’s Speech. In Proceedings, 6th International Workshop on Spoken Language Technologies for Under-Resourced Languages (SLTU-2018), 29-31 August 2018, Gurugram, India
5. P. Green, R. Marxer, S. Cunningham, H. Christensen, F. Rudzicz, M. Yancheva, A. Coy, M. Malavasi, L. Desideri, F. Tamburini, CloudCAST - Remote Speech Technology for Speech Professionals. In Proceedings of Interspeech 2016.
6. P. Green, R. Marxer, S. Cunningham, H. Christensen, F. Rudzicz, M. Yancheva, A. Coy, M. Malavasi, L. Desideri,  Remote Speech Technology for Speech Professionals - the CloudCAST initiative. In Proceedings of the 6th Workshop on Speech and Language Processing for Assistive Technologies at Interspeech 2015, Dresden, Germany
7. L. Falconer, A. Coy, J. Barker,  . In Proceedings of the Fifth Speech Conference of UK and Ireland, July 2-3, 2015, Norwich, UK
8. L. Falconer, J. Barker and A. Coy, Modelling hearing impaired-listeners’ perception of speaker intelligibility in noise. UKSpeech, University of Edinburgh, June 9-10, 2014.
9. A. Coy, Computer Assisted Language Learning Aids: An Approach to Increasing Literacy Rates in the Developing World, Ireland International Conference on Education (IICE-2012), October 28-31, 2012, Dublin, Ireland.
10. A. Coy, Computer Assisted Language Learning Aids, Biennial Conference on Education, June 15-17, 2011, Ocho Rios, Jamaica
11. R. C. Rose, A. Norouzian, A. Reddy, A. Coy, V. Gupta and M. Karafiat Subword-Based Spoken Term Detection in Audio Course Lectures. In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, March 14-19, 2010.
12. M. Hawley, S. Cunningham, F. Cardinaux, A. Coy, P. O'Neill, S. Seghal and P. Enderby, Challenges in Developing a Voice Input Voice Output Communication Aid for People with Severe Dysarthria, AAATE 2007, San Sebastian, Spain.
13. A. Coy and J. Barker, A Multipitch Tracker for Monaural Speech Segmentation, Interspeech 2006, Pittsburgh, PA, 1292 – 1295
14. J. Barker, A. Coy, N. Ma and M. Cooke, Recent Advances in Speech Fragment Decoding Techniques, Interspeech 2006, Pittsburgh, PA, 85 – 89
15. N. Ma,  P. Green and A. Coy,  Exploiting Dendritic Autocorrelogram Structure to Identify Spectro-temporal Regions Dominated by a Single Sound Source, Interspeech 2006,  Pittsburgh, PA, 669 – 672
16. A. Coy and J. Barker, Soft Harmonic Masks for Recognising Speech in the Presence of a Competing Speaker, Interspeech 2005, Lisbon, 2641 – 2644
17. A. Coy and J. Barker, Recognising Speech in the Presence of a Competing Speaker using a ‘Speech Fragment Decoder’, the IEEE International Conference on Acoustics, Speech and Signal Processing 2005, Philadelphia, 425 – 428
18. J. Barker and A. Coy, Towards Solving the Cocktail Party Problem through Primitive Grouping and Model Combination, In Proceedings, Forum Acusticum 2005, Budapest

Refereed Conference Posters and Abstracts

1. A. Coy, P. Green, S. Cunningham, H. Christensen, J. J. Atria, F. Rudzicz, M. Malavasi and L. Desideri. Embedding Speech Technology into Intelligent Tutoring Systems using the CloudCAST Speech Technology Platform. In Intelligent Tutoring Systems: 14th International Conference, ITS 2018, Montreal, Canada, June 11-15, 2018, pp 421-424. Springer, 2018.
2. D. Rankine, J. Barker Cohen, M. Taylor, A. Coy and T. Stephenson. Modeling Drought Tolerance in Caribbean Root Crops under Present and Future Climates - the Case of Jamaican Sweet Potato. In Proceedings of the 7th AgMIP Global Workshop, March 24, 2018.
3. S. Watson and A. Coy, Automatic Speech Recognition and Literacy: The Development of Models for the Jamaican Child. In Proceedings of the 11th FST Conference April 25-27, 2018, Kingston, Jamaica.
4. Y. Wallen-Bryan and A. Coy, Realization of a Universal Low-Cost Remote Monitoring System for Commercial Photovoltaic Energy Systems: Application in the Caribbean. In Proceedings of the 11th FST Conference April 25-27, 2018, Kingston, Jamaica.
5. L. Falconer and A. Coy, Jon Barker, Modeling Sensorineural Hearing Impaired Listeners’ perception of Speaker Intelligibility in Noise. In Proceedings of the 11th FST Conference April 25-27, 2018, Kingston, Jamaica.
6. O. King, A. Coy, M. Voutchkov, Video-based Non-contact Heart Rate Monitoring by Reflectance Photoplethysmography. In Proceedings of the 11th FST Conference April 25-27, 2018, Kingston, Jamaica.
7. A. Coy and K. Cumberbatch, The Use of Technology for Enabling Communication with the Deaf, Regional Disabilities Conference, March 16-17, 2016, Kingston Jamaica
8. L. Falconer and A. Coy, Predicting the intelligibility of noisy speech to the hearing impaired listener. In Proceedings of the 10th FST Conference June 9-11, 2015, Kingston, Jamaica.
9. S. Watson and A. Coy, An analysis of the formant frequencies of vowels in Jamaican Standard English for children. In Proceedings of the 10th FST Conference June 9-11, 2015, Kingston, Jamaica.
10. S. Watson and A. Coy, Investigating the Feasibility of an Automated Literacy Tutor for Jamaica, UWI School of Education, Literacy Symposium, March 21-22, 2013, Kingston Jamaica
11. A. Coy, The Use of Automatic Speech Recognition in the Teaching of Literacy. UWI School of Education, Literacy Symposium, March 11-12, 2010, Kingston, Jamaica.
12. A. Coy, He Said, She Said: Cross-Gender Multi-source Decoding, Research Retreat, Department of Computer Science, University of Sheffield, 2003
13. D. Walwyn and A. Coy, Forecasting Local Isolated Thunderstorms in Jamaica, Proceedings of the Fifth Conference, Faculty of Pure and Applied Sciences, UWI (Mona). 2001, Jamaica

Conference and Workshop Presentations

1. D. Rankine, M. A. Taylor, J. E. Cohen, A. Coy, T. S. Stephenson, and L. A. Simpson. 2015. Towards Enhancing Sustainable Agriculture in the Caribbean in a Changing Climate. Caribbean Food Crops Society 51st Annual Meeting July 19-24, 2015, Paramaribo, Suriname.
2. D. Rankine, M. A. Taylor, J. E. Cohen, A. Coy, T. S. Stephenson, and L. A. Simpson. 2015. Climate change and future Food Security: The Impacts on Root and Tuber Crops. Climate Smart Agriculture Symposium, Jamaica Rural Economy and Ecosystems Adapting to Climate Change (JaREEACH), July 16, 2015, Kingston, Jamaica.
3. D. R. Rankine, M. A. Taylor, T. S. Stephenson, J. E. Cohen, A. Coy and R. Hall-Hanson. Agricultural Crop Production in a Drier Caribbean-Quantifying Future Impact on Jamaican Sweet Potato Production. Intergovernmental Panel on Climate Change (IPCC) Outreach Workshop, co-hosted by the Ministry of Economic Growth and Job Creation of Jamaica and the University of the West Indies, Nov 30–Dec 1, 2016, Kingston, Jamaica.

Special Presentations and Invited Lectures

1. A. Coy. Addressing the Educational Needs of the Deaf. Accessible Americas V: ICTs for ALL, Montego Bay, November 29, 2018.
2. A. Coy, An Overview of Technology Access for the Disabled in Jamaica. AIAS Bologna, Italy, December 5, 2017
3. A. Coy, How can Human Speech Recognition Improve the Robustness of Automatic Speech Recognition? Communication Research Centre, August 5, 2010. Ottawa, Canada
4. A. Coy, Automatic Speech Recognition Inspired by the Scene Analysis Account of Auditory Perception, Department of Electrical and Computer Engineering, McGill University, Canada, September 3, 2008
5. A. Coy, Automatic Speech Recognition Inspired by Auditory Scene Analysis, Physics Homecoming, July 11, 2008
6. A. Coy, Automatic Speech Recognition Inspired by Auditory Scene Analysis, Department of Electrical and Computer Engineering, Ryerson University, Canada, June 25, 2008
7. A. Coy, Missing Data Theory, Cognitive Systems Summer School, Otto Von Guericke University, Magdeburg, Germany, July 14, 2003