Faculty

Gayan P. Hettiarachchi

Department of Digital Business & Innovation

Associate Professor

Email: ghettiar@tiu.ac.jp
Last updated: October 8, 2024 5:46 pm

⬛ Education

2015 Ph.D. (Physics)โ€“ Department of Physics, Osaka University
2012 M.Sc. (Physics)โ€“ Department of Physics, Osaka University
2008 B.Sc. (Hons. in Statistics and Computer Science) โ€“ Department of Statistics, University of Colombo

⬛ Teaching and Research Interests

Complex Adaptive Systems, Data and Decision Sciences, Data-Driven Research and Innovation, Knowledge-Based Team Management, Materials Informatics, Technology Management and Strategy

⬛ Academic Appointments

2024- Clinical Associate Professor, Institute for International Strategy, Tokyo International University
2023- Deputy General Manager, Corporate Advisory and Numerical Consulting, Mizuho DL Financial Technology
2023- Research Advisor, Department of Statistics and Center for Data Science, University of Colombo
2021- Invited Researcher, Graduate School of Engineering Science, Osaka University
2019-2023 Head of Research and Development, OpenDNA Inc.
2018-2023 Chief Data Consultant/Executive Advisor, Sierra Consulting Inc.
2015-2018 Assistant Professor, Graduate School of Engineering Science, Osaka University
2015-2017 Invited Researcher, Rutherford Appleton Laboratory โ€“ Oxford
2006-2008 Systems Engineer, Designsoft Technologies (Pvt.) Ltd.

⬛ Fellowships & Grants

Japanese Government Scholarship for postgraduate research (2008-2015)
Travel Grant from the Ministry of Education, Culture, Sports, and Technology of Japan under the funding program for excellent young researchers (2014)
Research Grant from the Ministry of Education, Culture, Sports, and Technology of Japan under the funding program for excellent young researchers (2013)

⬛ Selected Publications/Conference Papers

M. Geshi, H. Funashima, and G. P. Hettiarachchi, โ€œUnderstanding the difference in fragility of the bcc phases of highly compressed P, As, and Sb through first-principles investigations,โ€ Physical Review B 108, 094112, 2023.
B. Ma, G. P. Hettiarachchi, S. Fukui, and Y. Ando, โ€œExploring the Effectiveness of Vocabulary Proficiency Diagnosis Using Linguistic Concept and Skill Modeling,โ€ Proceedings of the 16th International Conference on Educational Data Mining, 149โ€“15, 2023.
B. Ma, G. P. Hettiarachchi, S. Fukui, and Y. Ando, โ€œEach Encounter Counts: Modeling Language Learning and Forgetting.โ€ Proceedings of the 13th International Learning Analytics and Knowledge Conference (LAK 2023), 79-88, 2023.
A. Ebisuya, T. Sekiguchi, and G. P. Hettiarachchi, โ€œNarrowing the communication gap in internationally distributed teams: the case of software-development teams in Sri Lanka and Japan,โ€ Asian Business & Management 22, 354-378, 2023.
M. Geshi, H. Funashima, and G. P. Hettiarachchi, โ€œFirst-principles study of highly-compressed Sb: a stubborn body-centered cubic structure,โ€ Japanese Journal of Applied Physics 61, 085505, 2022.
B. Ma, G. P. Hettiarachchi, and Y. Ando, โ€œFormat-Aware Item Response Theory for Predicting Vocabulary Proficiency,โ€ Proceedings of the 15th International Conference on Educational Data Mining, 695โ€“700, 2022.
M. Geshi, H. Funashima, and G. P. Hettiarachchi, โ€œStudy of compressed sulfur based on reliable first-principles calculations,โ€ Physical Review B 104, 104106, 2021.
M. Geshi, H. Funashima, and G. P. Hettiarachchi, โ€œStudy of compressed sulfur based on reliable first-principles calculations,โ€ Physical Review B 104, 104106, 2021.
G. P. Hettiarachchi, Y. Nishida, Y. Masaki, M.N.M. Muhid, and H. Hamdan, โ€œOptical investigations of the (dis)continuous metal-insulator transitions in strongly-coupled electron-lattice systems,โ€ Journal of Physics: Condensed Matter 32, 095601, 2020.
G. P. Hettiarachchi, Y. Nishida, Y. Masaki, M.N.M. Muhid, and H. Hamdan โ€œEvolution of spin dynamics across the discontinuous metal-insulator transition in a deformable lattice,โ€ Physical review B 100, 125154, 2019.
G. P. Hettiarachchi, Y. Nishida, and Y. Masaki, โ€œPolaron relaxation and charge dynamics near the mobility edge of a possible Wigner-lattice of polarons,โ€ Physical Review B 98, 035125, 2018.
G. P. Hettiarachchi, M. N. M. Muhid, and H. Hamdan, โ€œTransition of a gas of small-bipolarons to a Frรถhlich polaron in a deformable lattice,โ€ Physical Review B 97, 155142, 2018.
G. P. Hettiarachchi, F. Moriasa, Y. Nishida, T. Nakano, M. N. M. Muhid, and H. Hamdan, โ€œSmall bipolarons and extended states of guest Na and Rb atoms in quasi-two-dimensional disordered M7.8-dAl7.8Si8.2O32.0 (M=Na, Rb),โ€ Physical Review B 96, 155115, 2017.
A. Ebisuya, T. Sekiguchi, and G. P. Hettiarachchi, โ€œFixing communication problems in international virtual teams: The roles of team mental models and bridge individuals,โ€ Proceedings of Academy of International Business Southeast Asia Regional Conference, MS0031: 1-53, 2017.
A. Ebisuya, T. Sekiguchi, and G. P. Hettiarachchi, โ€œInterplay of Team Mental Models, Project Process Models, and Language in Software-Development Teams,โ€ Academy of Management Proceedings 2017:1 11968, 2017.
G. P. Hettiarachchi, T. Nakano, Y. Masaki, M. N. M. Muhid, H. Hamdan, and Y. Nozue, โ€œInsulator-to-Metal Transition in Potassium-Loaded Zeolite P,โ€ Journal of the Physical Society of Japan 84, 014702, 2015.
G. P. Hettiarachchi, D. S. Hettiarachchi, N. N. Hettiarachchi, and A. Ebisuya, โ€œNext Generation Data Classification and Linkage: Role of Probabilistic Models and Artificial Intelligence,โ€ Proceedings of the Institute for Electrical and Electronic Engineers Global Humanitarian Technology Conference, 572, 2014.
G. P. Hettiarachchi, D. Attygalle, D. S. Hettiarachchi, and A. Ebisuya, โ€œA Generic Statistical Machine Learning and Data Mining Framework for Record Classification and Linkage,โ€ International Journal of Intelligent Information Processing 4, 96, 2013.
G. P. Hettiarachchi and D. Attygalle, โ€œSPARCL: An Improved Approach for Matching Sinhalese Words and Names in Record Clustering and Linkage,โ€ Proceedings of the Institute for Electrical and Electronic Engineers Global Humanitarian Technology Conference, 423, 2012.
G. P. Hettiarachchi and D. S. Hettiarachchi, โ€œMulti-vision Robot Navigation: A Generic Approach,โ€ The International Journal of Technology, Knowledge and Society 4, 197, 2008.
A. Ebisuya, T. Sekiguchi, and G. P. Hettiarachchi, (September 2023). Chapter 23: The Case of Japan. In L. C. Christiansen, M. Biron, E. Farndale, and B. Kuvaas (ed.) The Global Human Resource Management Casebook, Third Edition: 218-225, Routledge. ISBN: 9781032308807
Scroll to Top