Choi-Hong Lai

Professor Choi-Hong Lai 厲才康 BSc, PhD

Professor of Numerical Mathematics

Professor Lai leads the research in numerical and applied mathematics within the Centre for Advanced Simulations and Modelling and a Professor of Numerical Mathematics at the School of Computing and Mathematical Sciences, Faculty of Engineering and Science. He came from a background of mathematics with engineering, aerodynamics, partial differential equations, and parallel computing. He specialises in novel numerical algorithms and data driven mathematical models.

He teaches Level 5 Computational and Numerical Methods, Level 7 Contemporary Topics in Mathematics, and two short courses, one being Methods for Nonlinear Problems and the other Practical Inverse Problems. He coordinates research activities of numerical and applied mathematics. Currently he is visiting professor at Jiangnan University and Fuzhou University, China, and at Buckingham University.

Engineering

Responsibilities within the university

Research, Module Leader, Short Course Leader

  • REF2028 Impact Case Studies
  • Chair in Numerical Mathematics
  • Numerical mathematics lead in Centre for Advanced Simulations and Modelling
  • Module leader 2022/23: Computational and Numerical Methods, Contemporary Topics of Mathematics
  • Short course lead: Methods for Nonlinear Problems, Practical Inverse Problems
  • Organiser of Leslie Comrie Seminar series

Recognition

FHEA, CMath, CEng, FIMA, MBCS, LMS Member, AIAA Senior Member, SIAM Member

Editor-in-Chief: Journal of Algorithms and Computational Technology; International Journal of Computer Mathematics

Book series editor: Numerical Analysis and Scientific Computing Series, Chapman & Hall/CRC Press

Co-Chair: International Symposium of Distributed Computing and Algorithms for Business, Engineering, and Sciences

Members Committee panel member: IMA

Finance Committee panel member: IMA

EPSRC Future Leaders Fellowships (FLF) Peer Review College (2022-2023)

Research / Scholarly interests
  • Inverse problems, optimisation, uncertainty quantification, and machine learning.
  • Data driven mathematical models for (1) mechanosensation, (2) nutrients and drug absorption, (2) music and sociology, and (3) criminology.
  • Data driven and financial driven models for option pricing and nonlinear volatility; calibration methods; GPU and parallel algorithms; Monte Carlo simulation
  • Optimisation and risk management.
  • Image processing
  • Innovative numerical algorithms

Key funded projects

  • 2022 LMS Scheme 2 grant
  • 2019 University REF Fellowship award
  • 2017 University REF Competitive Fund Predicting Outcomes During Malicious Product Incidents (with Law School)
  • 2015 University Proof of Concept Fund (HEIF-PoC-ACH-03/15) A computational framework conjoining musical pieces with socio-economic/socio-political events
  • 2013 to 2017 FP7-People-2012-ITN: STRIKE (Ref 304617) Novel methods in computational finance
  • 2013 to 2017 FP7-People-2012-ITN: AeroTraNet (Ref 317142) Aeronautical Training Network in Aerodynamic Noise from Widebody Civil Aircraft

Completed Projects

  • 2023 LMS Scheme 2 Grant
  • 2016 VC's scholarship - Advanced modelling for nutrients and drugs absorption
  • 2014 VC's scholarship - Mathematical modelling of cardiac myocytes and myocardium
  • 2013/14 - Modelling mechanosensation of cardiac myocytes (University RAE Competitive Scheme RAE-CMS-05/13)
  • 2013 - LMS Minisymposium on Advanced Decomposition Methods for Partial Differential Equations (London Mathematical Society Scheme 1 Grant (LMS 11222)
  • 2012/13 - Removing heat haze from degraded images using an inverse problem approach (HEIF Proof-of-concept fund HEIF-PoC-CMS-04/12)
  • 2012 - Computational Biology (VC's scholarship Ref EC-11-49.2)
  • 2012 - Novel Methods in Computational Finance (FP7-People-2012-Multi-ITN STRIKE Ref 304617)
  • 2012 -  Aeronautical Training Network in Aerodynamic Noise from Widebody Civil Aircraft (FP7-People-2012-ITN AeroTraNet Ref 317142)
  • 2012/13 - A mathematical model of polyunsaturated fatty acids kinetics and its relation to their digestion and metabolism in humans University RAE Competitive Scheme (Ref RAE-CMS-01/12)
  • 2012 - Essex-Greenwich-Hertfordshire Workshop on Applied and Numerical Mathematics Multiscale Problems (London Mathematical Society Scheme 8 Grant LMS 81106)
  • 2007 - Real-time virtual prototyping tools for OPTimising WELDed products (TSB OPTWELD Project TP/8/ADM/6/I/Q2068B)

Recent publications

Article

Liu, Zihua , Gao, Tao, Lai, Choi-Hong, Gao, Wenxing (2024), A numerical investigation on the vibration of a two-deck Euler-Bernoulli beam flooded by a potential flow. OUP. In: , , , . OUP, Quarterly Journal of Mechanics and Applied Mathematics ISSN: 0033-5614 (Print), 1464-3855 (Online) (doi: https://doi.org/10.1093/qjmam/hbae006).

Olawale, Lukman , Gao, Tao, George, Erwin, Lai, Choi-Hong (2023), Response of an Euler-Bernoulli beam subject to a stochastic disturbance. Springer. In: , , , . Springer, Engineering with Computers, 39 (6) . pp. 4185-4197 ISSN: 0177-0667 (Print), 1435-5663 (Online) (doi: https://doi.org/10.1007/s00366-023-01917-5).

Grandaos-Ortiz, Francisco-Javier , Lopez-Martinez, Alejandro, Molina-Aiz, Francisco Domingo, Lai, Choi-Hong , Pena-Fernandez, Araceli , Martinez-Lao, Juan Antonio , Valera-Martinez, Diego Luis (2023), Improvements in the characterization of permeability and inertial factor of insect-proof screens through pressure drop coefficients. MDPI. In: , , , . MDPI, Agronomy, 13: 602 (2) . pp. 1-15 2073-4395 (Online) (doi: https://doi.org/10.3390/agronomy13020602).

Granados-Ortis, F.-J. , Lopez-Martinez, A., Ortgega-Casanova, J., Lai, Choi-Hong (2022), Semi-analytical calculation of pore-related parameters of wire/woven screens. Elsevier. In: , , , . Elsevier, International Journal of Mechanical Sciences, 242: 107972 ISSN: 0020-7403 (Print), 1879-2162 (Online) (doi: https://doi.org/10.1016/j.ijmecsci.2022.107972).

Choi-Hong, Alejandro , Granados-Ortiz, Francisco-Javier, Molina-Aiz, Francisco D., Lai, Choi-Hong , Moreno-Teruel, María de los Ángeles , Valera-Martínez, Diego L. (2022), Analysis of turbulent air flow characteristics due to the presence of a 13 × 30 threads·cm^−2 insect proof screen on the side windows of a Mediterranean greenhouse. MDPI. In: , , , . MDPI, Agronomy, 12 (3) . pp. 586-593 2073-4395 (Online) (doi: https://doi.org/10.3390/agronomy12030586).

Lin, Xiaozheng , Wang, Meiqing, Lai, Choi-Hong (2021), A modification term for Black-Scholes model based on discrepancy calibrated with real market data. Data science in finance and economics. AIMS Press. In: , , , . AIMS Press, Data Science in Finance and Economics, 1 (4) . pp. 313-326 2769-2140 (Online) (doi: https://doi.org/10.3934/DSFE.2021017).

Granados-Ortiz, F.-J. , Ortega-Casanova, J., Lai, C.-H. (2020), Propagation of uncertainty in a rotating pipe mechanism to generate an impinging swirling jet flow for heat transfer from a flat plate. Springer Verlag. In: , , , . Springer Verlag, Engineering with Computers, 38 (2) . pp. 939-968 ISSN: 0177-0667 (Print), 1435-5663 (Online) (doi: https://doi.org/10.1007/s00366-020-01071-2).

Pandey, Sanjib Raj , Ma, Jixin, Lai, Choi-Hong (2020), A supervised machine learning approach to generate the auto rule for clinical decision support system. In: , , , . , Trends in Medicine, 20 (3) . pp. 1-9 ISSN: 1594-2848 (Print), (doi: https://www.oatext.com/a-supervised-machine-learning-approach-to-generate-the-auto-rule-for-clinical-decision-support-system.php#gsc.tab=0).

Granados-Ortiz, Francisco-Javier , Ortega-Casanova, Joaquin, Lai, Choi-Hong (2019), Two-step numerical simulation of the heat transfer from a flat plate to a swirling jet flow from rotating pipe. Emerald. In: , , , . Emerald, International Journal of Numerical Methods for Heat & Fluid Flow, 30 (1) . pp. 143-175 ISSN: 0961-5539 (Print), (doi: https://dx.doi.org/10.1108/HFF-04-2019-0343).

Natkunam, Kokulan , Hai, Yang, Lai, Choi-Hong, George, Erwin , Liu, Li (2019), Simultaneous estimation of tracer kinetic model parameters using analytical and inverse approaches with a hybrid method. Taylor & Francis. In: , , , . Taylor & Francis, International Journal of Computer Mathematics ISSN: 0020-7160 (Print), 1029-0265 (Online) (doi: https://doi.org/10.1080/00207160.2018.1562175).

Arif, Serife , Lai, Choi-Hong, Ramesh, Nadarajah I. (2019), Estimation of stochastic behaviour in cardiac myocytes: I. Calcium Ca2+ movements inside the cytosol and sarcoplasmic reticulum on curvilinear domains. SAGE Publications. In: , , , . SAGE Publications, JRSM Cardiovascular Disease, 8 ISSN: 2048-0040 (Print), 2048-0040 (Online) (doi: https://doi.org/10.1177/2048004018822428).

Granados-Ortiz, Francisco-Javier , Arroyo, Carlos Perez, Puigt, Guillaume, Lai, Choi-Hong , Airiau, Christophe (2018), On the influence of uncertainty in computational simulations of a high-speed jet flow from an aircraft exhaust. Elsevier. In: , , , . Elsevier, Computers & Fluids, 180 . pp. 139-158 ISSN: 0045-7930 (Print), (doi: https://doi.org/10.1016/j.compfluid.2018.12.003).

Lai, Choi-Hong and , (2018), Modification terms to the Black-Scholes model in a realistic hedging strategy with discrete temporal steps. Taylor & Francis. In: , , , . Taylor & Francis, International Journal of Computer Mathematics, 96 (11) . pp. 2201-2208 ISSN: 0020-7160 (Print), 1029-0265 (Online) (doi: https://doi.org/10.1080/00207160.2018.1542135).

Xu, Haiping , Wang, Meiqing, Chen, Fei, Lai, Choi-Hong (2018), Image cosegmentation using shape similarity and object discovery scheme. World Scientific. In: , , , . World Scientific, International Journal of Pattern Recognition and Artificial Intelligence, 32: 1854026 (10) ISSN: 0218-0014 (Print), 1793-6381 (Online) (doi: https://doi.org/10.1142/S0218001418540265).

Lai, C.-H. and , Ortega-Casanova, J. (2018), CFD study on laminar mixing at a very low Reynolds number by pitching and heaving a square cyliner. Elsevier. In: , , , . Elsevier, Computers and Fluids, 168 . pp. 318-327 ISSN: 0045-7930 (Print), (doi: https://doi.org/10.1016/j.compfluid.2018.03.068).

Zeng, Xunxun , Chen, Fei, Wang, Meiqing, Lai, Choi-Hong (2018), Circulant dissimilarity based shape registration for object segmentation. Taylor and Francis. In: , , , . Taylor and Francis, International Journal of Computer Mathematics ISSN: 0020-7160 (Print), 1029-0265 (Online) (doi: https://doi.org/10.1080/00207160.2018.1445236).

Xue, Meiyu and , Lai, Choi-Hong (2018), From time series analysis to a modified ordinary differential equation. SAGE Publications. In: , , , . SAGE Publications, Journal of Algorithms and Computational Technology, 12 (2) . pp. 85-90 ISSN: 1748-3018 (Print), 1748-3026 (Online) (doi: https://doi.org/10.1177/1748301817751480).

Serife, Arif , Natkunam, Kokulan, Byambajav, Buyandelger, Lai, Choi-Hong , Knöll, Ralph (2017), An inverse problem approach to identify the internal force of a mechanosensation process in a cardiac myocyte. Elsevier. In: , , , . Elsevier, Informatics in Medicines Unlocked, 6: 4 . pp. 36-42 ISSN: 2352-9148 (Print), (doi: https://doi.org/10.1016/j.imu.2017.01.002).

Ďuriš, Karol , Tan, Shih-Hau, Lai, Choi-Hong, Ševčovič, Daniel (2016), Comparison of analytical approximation formula and Newton's method for solving a class of nonlinear Black-Scholes parabolic equations. De Gruyter. In: , , , . De Gruyter, Computational Methods in Applied Mathematics, 16 (1) . pp. 35-50 ISSN: 1609-4840 (Print), 1609-9389 (Online) (doi: http://dx.doi.org/10.1515/cmam-2015-0035).

Conference proceedings

Olawale, Lukman , George, Erwin, Gao, Tao, Lai, Choi-Hong (2024), Response of a slender structure subject to stochastic ground motion and body force. Department of Engineering, Durham University. In: , , In: W.M. Coombs (ed.), UKACM Proceedings 2024: Proceedings of the 2024 UK Association for Computational Mechanics Conference. Department of Engineering, Durham University, Durham (1st) . pp. 226-229 (doi: https://doi.org/10.62512/conf.ukacm2024.076).

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