My profile

Biography

Who am I?

After a postdoc research career in astrophysics working on theoretical and computational studies of the dynamics of circumstellar and interstellar gas, I changed to a career in the games industry from 1999. I worked on 59 game SKUs on 13 platforms from Gameboy Color and Playstation through to Xbox360 and Playstation 3. In 2013 I returned to academia when I joined Manchester Metropolitan University. Highlights of my game development career include writing the critically acclaimed fluid flow code for Hydrophobia and the physics code for the World Snooker Championship series, and later on, Pool Nation. I am now teaching game development, focusing on programming, and carrying out research in evolutionary computation and machine learning.

Other academic service (administration and management)

Programme Leader, MSc Computer Games Development

Disability Coordinator, Deparment of Computing and Mathematics

Teaching

Undergraduate courses

Games Programming (2nd year BSc)

Advanced Computer Graphics (Final year BSc)

Advanced Game Development (Final year BSc)

Postgraduate teaching

Games Programming (MSc)

Research outputs

  • Journal articles

    Hammoudeh, M., Adebisi, B., Al-Fayez, F., Lloyd, H., Newman, R., Bounceur, A., Abuarqoub, A. 'A Wireless Sensor Network Border Monitoring System: Deployment Issues and Routing Protocols.' IEEE Sensors Journal, 14(8)

    Henry, J., Lloyd, H., Turner, M., Kendrick, C. 'On the robustness of machine learning models for stress and anxiety recognition from heart activity signals.' IEEE Sensors Journal,

    Kavarakuntla, T., Han, L., Lloyd, H., Latham, A., Kleerekoper, A., Akintoye, S.B. 'A generic performance model for deep learning in a distributed environment.' IEEE Access, 12pp. 8207-8219.

    Akintoye, S.B., Han, L., Lloyd, H., Zhang, X., Dancey, D., Chen, H., Zhang, D. 'Layer-wise partitioning and merging for efficient and scalable deep learning.' Future Generation Computer Systems, 149pp. 432-444.

    Lloyd, H., Crossley, M., Sinclair, M., Amos, M. 'J-POP: Japanese Puzzles as Optimization Problems.' IEEE Transactions on Games, 14(3) pp. 391-402.

    Peake, J., Amos, M., Costen, N., Masala, G., Lloyd, H. 'PACO-VMP: Parallel Ant Colony Optimization for Virtual Machine Placement.' Future Generation Computer Systems: the international journal of grid computing: theory, methods and applications, 129pp. 174-186.

    Jabbar, S., Lloyd, H., Hammoudeh, M., Adebisi, B., Raza, U. 'Blockchain-enabled supply chain: analysis, challenges, and future directions.' Multimedia Systems, 27(4) pp. 787-806.

    Lloyd, H., Amos, M. 'Solving Sudoku with Ant Colony Optimization.' IEEE Transactions on Games, 12(3) pp. 302-311.

    Dougherty, S.M., Pittard, J.M., Kasian, L., Coker, R.F., Williams, P.M., Lloyd, H.M. 'Radio emission models of Colliding-Wind Binary Systems.' Astron.Astrophys., 409pp. 217-234.

    Skopal, A., Bode, M.F., Lloyd, H.M., Drechsel, H. 'IUE high-resolution observations of the symbiotic star CH Cygni: Confirmation of the triple-star model.' Astronomy and Astrophysics, 331(1) pp. 224-230.

    Skopal, A., Bode, M.F., Lloyd, H.M., Drechsel, H. 'IUE low-resolution observations of the triple system CH Cygni: The mass transfer in the symbiotic pair.' Astronomy and Astrophysics, 331(1) pp. 179-186.

    Skopal, A., Bode, M.F., Lloyd, H.M., Drechsel, H. 'The impact of IUE observations on our understanding of the unique symbiotic triple system CH Cyg.' European Space Agency, (Special Publication) ESA SP, (413) pp. 361-364.

    Skopal, A., Vittone, A., Errico, L., Bode, M.F., Lloyd, H.M., Tamura, S. 'A photometric and spectroscopic study of the symbiotic binary BF Cyg.' Monthly Notices of the Royal Astronomical Society, 292(3) pp. 703-713.

    Lloyd, H.M., O'Brien, T.J., Bode, M.F. 'Shaping of nova remnants by binary motion.' Monthly Notices of the Royal Astronomical Society, 284(1) pp. 137-147.

    Palmer, J.W., López, J.A., Meaburn, J., Lloyd, H.M. 'The kinematics and morphology of the planetary nebula Fleming 1: Bullets, jets and an expanding ring.' Astronomy and Astrophysics, 307(1) pp. 225-236.

    Dougherty, S.M., Waters, L.B.F.M., Bode, M.F., Lloyd, H.M., Kester, D.J.M., Bontekoe, T.R. 'The extended dust emission around the nova GK Persei.' Astronomy and Astrophysics, 306(2) pp. 547-552.

    Eyres, S.P.S., Davis, R.J., Bode, M.F., Lloyd, H.M. 'V705 Cassiopeiae.' \iaucirc, 6292pp. 2-2.

    Skopal, A., Bode, M.F., Lloyd, H.M., Tamura, S. 'Eclipses in the symbiotic system CH CYG.' åp, 308pp. L9-L12-L9-L12.

    Lloyd, H.M., O'Brien, T.J., Bode, M.F. 'Interacting winds in classical nova outbursts.' Astrophysics and Space Science, 233(1-2) pp. 317-321.

    Eyres, S.P.S., Kenny, H.T., Cohen, R.J., Lloyd, H.M., Dougherty, S.M., Davis, R.J., Bode, M.F. 'MERLIN observations of bipolar outflow from HM Sagittae.' \mnras, 274pp. 317-323-317-323.

    Dougherty, S.M., Bode, M.F., Lloyd, H.M., Davis, R.J., Eyres, S.P. 'High-resolution radio images of the symbiotic star R Aquarii.' \mnras, 272pp. 843-849-843-849.

    Eyres, S.P.S., Cohen, R.J., Davis, R.J., Kenny, H.T., Lloyd, H.M., Bode, M.F., Dougherty, S.M. 'Direct observations of bipolar outflow from HM sagittae.' Astrophysics and Space Science, 224(1-2) pp. 457-458.

    Lloyd, H.M., O Brien, T.J., Kahn, F.D. 'A model for the circumstellar nebula of SN 1987A.' \mnras, 273pp. L19-L23-L19-L23.

    Dougherty, S.M., Bode, M.F., Lloyd, H.M., Davis, R.J., Eyres, S.P. 'High resolution radio images of the symbiotic system R aquarii.' Astrophysics and Space Science, 224(1-2) pp. 453-454.

    Ivison, R.J., Ward-Thompson, D., Lloyd, H.M., Thompson, D.J. 'Nova Ophiuchi 1994.' \iaucirc, 6061pp. 2-2.

    O'Brien, T.J., Lloyd, H.M. 'Shock-heated gas in the outbursts of classical novae.' Astrophysics and Space Science, 216(1-2) pp. 167-172.

    Lloyd, H.M., O'Brien, T.J., Bode, M.F., Kahn, F.D. 'The hydrodynamics of bipolar explosions.' Astrophysics and Space Science, 216(1-2) pp. 161-166.

    Skopal, A., Lloyd, H.M., Bode, M.F. 'CH Cygni.' \iaucirc, 6109pp. 2-2.

    O Brien, T.J., Lloyd, H.M., Bode, M.F. 'An interacting winds model for the X-ray emission from V838 Her (Nova Herculis 1991)..' \mnras, 271pp. 155-160-155-160.

    Lloyd, H.M., Bode, M.F., O Brien, T.J., Kahn, F.D. 'Bipolar Recurrent Nova Outbursts - Part One - Hydrodynamic Models.' \mnras, 265pp. 457-457.

    Ivison, R.J., Hughes, D.H., Lloyd, H.M., Bang, M.K., Bode, M.F. 'Millimetre and Submillimetre Continuum Observations of Nova Cygni 1992 - a New Test of Mass Ejection Models.' \mnras, 263pp. L43-L43.

    Lloyd, H.M., O Brien, T.J., Bode, M.F., Predehl, P., Schmitt, J.H.M.M., Truemper, J., Watson, M.G., Pounds, K.A. 'X-ray detection of Nova Herculis 1991 five days after optical outburst.' Nature, 356pp. 222-224-222-224.

    Predehl, P., Schmitt, J.H.M.M., Trumper, J., O Brien, T.J., Lloyd, H.M., Bode, M.F., Watson, M.G., Pounds, K.A. 'Nova Herculis 1991.' \iaucirc, 5278pp. 1-1.

  • Conference papers

    Nneke, N., Lloyd, H., Crockett, K. 'Quantification of explainability in black box models using complexity measures.' 14/11/2023 - 15/11/2023. IEEE,

    Kavarakuntla, T., Han, L., Lloyd, H., Latham, A., Akintoye, S.B. 'Performance Analysis of Distributed Deep Learning Frameworks in a Multi-GPU Environment.' In 2021 20th International Conference on Ubiquitous Computing and Communications. London, UK, 20/12/2021 - 22/12/2021. IEEE,

    Lloyd, H. 'Decentralized Parallel Ant Colony Optimization for Distributed Memory Systems.' In IEEE Scalable Computing and Communications Conference (ScalCom) 2019. Leicester, UK, 19/8/2019 - 23/8/2019.

    Lloyd, H., Hammoudeh, M. 'A Distributed Cellular Automaton Algorithm for Barrier Formation in Mobile Sensor Networks.' In Wireless Days. Manchester, 24/4/2019 - 26/4/2019.

    Peake, J., Amos, M., Yiapanis, P., Lloyd, H. 'Scaling Techniques for Parallel Ant Colony Optimization on Large Problem Instances.' In GECCO '19: Proceedings of the Genetic and Evolutionary Computation Conference. Prague, Czech Republic, 13/7/2019 - 17/7/2019. Association for Computing Machinery, pp. 47-54.

    Amos, M., Crossley, M., Lloyd, H. 'Solving Nurikabe with Ant Colony Optimization.' In Genetic and Evolutionary Computation Conference (GECCO) 2019. Prague, Czech Republic, 13/7/2019 - 17/7/2019. López-Ibáñez, M. (ed.) Association for Computing Machinery (ACM), pp. 129-130.

    Peake, J., Amos, M., Yiapanis, P., Lloyd, H. 'Vectorized Candidate Set Selection for Parallel Ant Colony Optimization.' In Genetic and Evolutionary Computation Conference (GECCO '18). Kyoto, Japan, 15/7/2018 - 19/7/2018. New York: ACM, pp. 1300-1306.

    Lloyd, H., Amos, M. 'Analysis of Independent Roulette Selection in Parallel Ant Colony Optimization.' In The Genetic and Evolutionary Computation Conference 2017 (GECCO 2017). Berlin, Germany, 15/7/2017 - 19/7/2017.

    Lloyd, H., Amos, M. 'A Highly Parallelized and Vectorized Implementation of Max-Min Ant System on Intel Xeon Phi.' 5/12/2016 - 9/12/2016. IEEE,

    Dougherty, S.M., Pittard, J.M., Coker, R., Williams, P.M., Kasian, L., Lloyd, H.M. 'Radio emission models of Colliding-Wind Binaries.' 15. Arthur, J., Henney, W.J. (ed.) pp. 56-58-56-58.

    Skopal, A., Vittone, A.A., Errico, L., Bode, M.F., Lloyd, H.M. 'Stages of Activity in the Symbiotic Binary BF Cyg.' Miko lajewska, J. (ed.) pp. 177-177.

    Eyres, S.P.S., Dougherty, S.M., Davis, R.J., Bode, M.F., Lloyd, H.M., Kenny, H.T. 'V1016 Cyg: Proper motion of radio emission.' In 158th Colloquium of the International-Astronomical-Union on Cataclysmic Variables and Related Objects. 208. KEELE, ENGLAND, 26/6/1995 - 30/6/1995. Evans, A., Wood, J.H. (ed.) KLUWER ACADEMIC PUBL, pp. 333-334.

    Eyres, S.P.S., Davis, R.J., Kenny, H.T., Bode, M.F., Dougherty, S.M., Lloyd, H.M. 'MERLIN observations of symbiotic novae.' In Conference on Radio Emission from the Stars and the Sun. 93. BARCELONA, SPAIN, 3/7/1995 - 7/7/1995. Taylor, A.R., Paredes, J.M. (ed.) ASTRONOMICAL SOC PACIFIC, pp. 194-196.

    Bode, M.F., Lloyd, H.M. 'The Origin and Evolution of Radio Emission in Classical and Recurrent Novae.' 93. Taylor, A.R., Paredes, J.M. (ed.) pp. 165-165.

    Lloyd, H.M., O Brien, T.J., Bode, M.F. 'Models for the Radio Emission from Classical Novae.' 93. Taylor, A.R., Paredes, J.M. (ed.) pp. 200-200.

    Dougherty, S.M., Bode, M.F., Lloyd, H.M., Morrison, L.V., Eyres, S.P., Davis, R.J. 'Proper Motions in the Core of the Symbiotic System R Aquarii.' 93. Taylor, A.R., Paredes, J.M. (ed.) pp. 191-191.

    Lloyd, H.M., O Brien, T.J., Bode, M.F. 'Hydrodynamic Models for the Mass-loss from Classical Novae.' 93. Taylor, A.R., Paredes, J.M. (ed.) pp. 203-203.

    Lloyd, H.M., O Brien, T.J., Bode, M.F. 'Shaping of nova shells by binary motion.' 208. Evans, A., Wood, J.H. (ed.) pp. 313-313.

    O Brien, T.J., Lloyd, H.M., Slavin, A.J. 'Rings and Shells around Classical Novae.' 11. Harpaz, A., Soker, N. (ed.) pp. 258-258.

    Lloyd, H.M., Bode, M.F., O Brien, T.J., Kahn, F.D. 'Model Radio Maps of RS Ophiuchi (1985).' 10. Regev, O., Shaviv, G. (ed.) pp. 297-297.

    Lloyd, H.M., Bode, M.F., O Brien, T.J., Kahn, F.D. 'Hydrodynamic models of bipolar nova outbursts.' Davis, R.J., Booth, R.S. (ed.) pp. 36-36.