I am currently a Lecturer in the School of Computer Science at the University of Wales at Bangor. My work involves research into Artificial Intelligence and Intelligent Agents. Ongoing research has also specifically focused on applying text compression-based language models to Information Retrieval(IR) and text mining (i.e. Information Extraction). Before I came to Bangor, I was a research fellow with the Information Retrieval Group under Prof. David Harper at The Robert Gordon University in Aberdeen, Scotland from 1999-2000; an invited researcher in the Information Theory Dept. at Lund University in Sweden in 1999; and a Research Assistant in the Machine Learning and Digital Libraries Labs at the University of Waikato in New Zealand in 1998. At Waikato, I completed my Ph.D. in 1998 on applying text compression models to the problem of modelling English text.

Position: Lecturer

Email: w.j.teahan@bangor.ac.uk

Phone: 01248 382703

Location: Dean Street

2021

• CyhoeddwydIaith a Thechnoleg yng Nghymru: Cyfrol I
  Prys, D. (Golygydd), Jones, D. (Cyfrannwr), Prys, G. (Cyfrannwr), Watkins, G. (Cyfrannwr), Cooper, S., Roberts, J. C. (Cyfrannwr), Butcher, P. (Cyfrannwr), Farhat, L. (Cyfrannwr), Teahan, W. & Prys, M. (Cyfrannwr), 5 Hyd 2021, Bangor: Prifysgol Bangor University. 120 t.
  Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
• CyhoeddwydLanguage and Technology in Wales: Volume I
  Prys, D. (Golygydd), Jones, D. (Cyfrannwr), Prys, G. (Cyfrannwr), Watkins, G. (Cyfrannwr), Cooper, S. (Cyfrannwr), Roberts, J. C. (Cyfrannwr), Butcher, P. (Cyfrannwr), Farhat, L. (Cyfrannwr), Teahan, W. (Cyfrannwr) & Prys, M. (Cyfrannwr), 5 Hyd 2021, Bangor: Prifysgol Bangor University. 120 t.
  Allbwn ymchwil: Llyfr/Adroddiad › Llyfr
• CyhoeddwydTracking the Fine Scale Movements of Fish using Autonomous Maritime Robotics: A Systematic State of the Art Review
  Nash, J. Z., Teahan, W., Bond, J., McCarthy, I., Pierce, I., Case, M. & Mowat, R., 1 Meh 2021, Yn: Ocean Engineering. 229, 108650.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUsing Compression to Discover Interesting Behaviours in a Hybrid Braitenberg Vehicle
  Ahmed, N. & Teahan, W. J., 21 Ion 2021, Yn: IEEE ACCESS. 9, t. 11316-11327 12 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydVisualisation Data Modelling Graphics (VDMG) at Bangor
  Roberts, J. C., Ritsos, P. D., Kuncheva, L., Vidal, F., Lim, I. S., Ap Cenydd, L., Teahan, W., Mansoor, S., Gray, C. & Perkins, D., Mai 2021. 2 t.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur › adolygiad gan gymheiriaid

2020

• CyhoeddwydEnhancing the stability of Organic Photovoltaics through Machine Learning
  David, T., Scapin Anizelli, H., Jacobsson, T. J., Gray, C., Teahan, W. & Kettle, J., Rhag 2020, Yn: Nano Energy. 78, 105342.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUsing Compression to Find Interesting One Dimensional Cellular Automata
  Ahmed, N. & Teahan, W., Ebr 2020, Yn: Complex and Intelligent Systems. 6, 1, t. 123–146 26 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2019

• CyhoeddwydAutomatic Correction of Arabic Dyslexic Text
  Alamri, M. & Teahan, W., 21 Chwef 2019, Yn: Computers. 8, 1, 19.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUsing Large Datasets of Organic Photovoltaic Performance Data to Elucidate Trends in Reliability Between 2009 and 2019
  David, T. W., Anizelli, H., Tyagi, P., Gray, C., Teahan, W. & Kettle, J., Tach 2019, Yn: IEEE Journal of Photovoltaics. 9, 6, t. 1768-1773
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2018

• CyhoeddwydA Compression-Based Toolkit for Modelling and Processing Natural Language Text
  Teahan, W., 22 Tach 2018, Yn: Information. 9, 294, t. 1-29 29 t., 9, 294.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydA compression based toolkit for text processing
  Teahan, W., 10 Ebr 2018.
  Allbwn ymchwil: Papur gweithio › Papur Gwaith
• CyhoeddwydAn automatic cryptanalysis of simple substitution ciphers using compression
  Alkazaz, N. R., Irvine, S. A. & Teahan, W. J., 2018, Yn: Information Security Journal: A Global Perspective. 27, 1, t. 57-75
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydVirtual reality’s effect on parameter optimisation for crowd-sourced procedural animation
  Henshall, G., Teahan, W. & Ap Cenydd, L., 1 Medi 2018, Yn: The Visual Computer. 34, 9, t. 1255-1268 13 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2017

• CyhoeddwydA New Thinning Algorithm for Arabic Script
  Teahan, W. & Alghamdi, M., 1 Ion 2017, Yn: International Journal of Computer Science and Information Security. 15, 1, t. 204-211 8 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydCrowd-Sourced Procedural Animation Optimisation: Comparing Desktop and VR Behaviour
  Henshall, G., Ap Cenydd, L. & Teahan, W., 2017, 2017 International Conference on Cyberworlds (CW). Chester, UK, t. 48-55 7 t.
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid
• CyhoeddwydExperimental Evaluation of Arabic OCR Systems
  Alghamdi, M. & Teahan, W., 6 Medi 2017, Yn: PSU (Prince Sultan University) Research Review. 1, 3, t. 229-241 12 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydTowards Real-Time Animation Optimisation in VR
  Henshall, G., Teahan, W. & Ap Cenydd, L., 14 Medi 2017, Computer Graphics and Visual Computing (CGVC). Wan, T. R. & Vidal, F. (gol.). Manchester Metropolitan University: The Eurographics Association
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

2016

• CyhoeddwydHow the Perceived Identity of a NPC Companion Influences Player Behavior
  Headleand, C. J., Jackson, J., Williams, B., Priday, L., Teahan, W. J. & Ap Cenydd, L., 21 Gorff 2016, Transactions on Computational Science : Special Issue on Cyberworlds and Cybersecurity. Gavrilova, M. L., Tan, C. J. K. & Sourin, A. (gol.). Berlin, Heidelberg: Springer Berlin / Heidelberg, Cyfrol XXVIII. t. 88-107 20 t. (Lecture Notes in Computer Science; Cyfrol 9590).
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod › adolygiad gan gymheiriaid
• CyhoeddwydTowards ethical robots: Revisiting Braitenberg's vehicles
  Headleand, C. J., Cenydd, L. A. & Teahan, W., 1 Medi 2016, 2016 SAI Computing Conference (SAI). t. 469-477 9 t.
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid

2015

• CyhoeddwydA new hybrid metric for verifying parallel corpora of Arabic-English
  Alkahtani, S. M., Alkahtani, S., Liu, W. & Teahan, W. J., 24 Ion 2015.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydAnthropomorphisation of software agents as a persuasive tool
  Headleand, C., Priday, L. J., Ap-Cenydd, L., Headleand, C. J., Ap Cenydd, L., Priday, L. R., Roberts, J. C. & Teahan, W. J., 13 Gorff 2015.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydDoes the Perceived Identity of Non-player Characters Change How We Interact with Them?
  Headleand, C. J., Jackson, J., Priday, L., Teahan, W. & Cenydd, L. A., 1 Hyd 2015, 2015 International Conference on Cyberworlds (CW). t. 145-152 8 t.
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid
• CyhoeddwydImplementation of Resource Discovery Mechanisms on PeerSim: Enabling up to One Million Nodes P2P Simulation
  Jamal, A. A., Awang, W. S., Kadir, M. F. & Teahan, W. J., 1 Ion 2015, Yn: International Journal of Digital Information and Wireless Communications. 5, 1
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe influence of virtual reality on the perception of artificial intelligence characters in games
  Headleand, C., Ap-Cenydd, L., Henshall, G. I., Headleand, C. J., Henshall, G., Ap Cenydd, L. & Teahan, W. J., 12 Tach 2015, Research and Development in Intelligent Systems XXXII. Springer, t. 345-357
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
• CyhoeddwydTowards crowd-sourced parameter optimisation for procedural animation
  Henshall, G., Teahan, W. & Ap Cenydd, L., 1 Hyd 2015, 2015 International Conference on Cyberworlds. Visby, Sweden, t. 379-381 3 t.
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Cyfraniad i Gynhadledd › adolygiad gan gymheiriaid
• CyhoeddwydTowards Real-Time Behavioral Evolution in Video Games
  Headleand, C., Henshall, G. I., Ap-Cenydd, L., Headleand, C. J., Henshall, G., Ap Cenydd, L. & Teahan, W. J., 26 Meh 2015, Artificial Life and Intelligent Agents. 2015 gol. Springer, t. 3-16
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

2014

• CyhoeddwydAdaptive compression-based models of Chinese text
  Teahan, W. J., Wu, P. & Liu, W., 7 Gorff 2014, t. 874-881.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydBenchmarking Grammar-Based Genetic Programming Algorithms
  Headleand, C. J., Ap-Cenydd, L. & Teahan, W. J., 9 Rhag 2014.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydBerry Eaters: Learning Colour Concepts with Template Based Evolution
  Headleand, C. J., Ap-Cenydd, L. & Teahan, W. J., 30 Gorff 2014.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydExperiments with a PPM Compression-Based Method for English-Chinese Bilingual Sentence Alignment
  Liu, W., Chang, Z. & Teahan, W. J., 3 Medi 2014, Statistical Language and Speech Processing Volume 8791 of the series Lecture Notes in Computer Science. Springer, t. 70-81
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
• CyhoeddwydPPM Compression-based method for English-Chinese Bilingual Sentence Alignment
  Liu, W., Chang, Z. & Teahan, W. J., 14 Hyd 2014.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydRandomised Multiconnected Environment Generator: Bangor University Technical Report CS-TR-004-2014
  Headleand, C., Henshall, G., Ap-Cenydd, L. & Teahan, W., 20 Hyd 2014, Bangor University, t. 1-5.
  Allbwn ymchwil: Papur gweithio › Papur Gwaith
• CyhoeddwydUniversal text preprocessing and postprocessing for PPM using Alphabet Adjustment
  Alhawiti, K. & Teahan, W. J., 26 Maw 2014, t. 395.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2013

• CyhoeddwydAn embodied approach to arthropod animation
  Ap-Cenydd, L., Teahan, W. J. & Computer Animation and Virtual Worlds, [. V. (Golygydd), 1 Ion 2013, Yn: Computer Animation and Virtual Worlds. 24, 1, t. 65-83
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydGrammatical Herding
  Headleand, C. J. & Teahan, W. J., 22 Ion 2013, Yn: Journal of Computer Science and Systems Biology. 6, 2, t. 042-047
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydStoryboarding for visual analytics
  Pop, S. R., Walker, R., Ap-Cenydd, L., Pop, S., Miles, H. C., Hughes, C. J., Teahan, W. J. & Roberts, J. C., 28 Mai 2013, Yn: Information Visualization. 14, 1, t. 27-50
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2011

• CyhoeddwydConstituent Grammatical Evolution
  Georgiou, L. & Teahan, W. J., 1 Ion 2011, Proceedings of the International Joint Conference on Artificial Intelligence. 2011 gol. Unknown, t. 1261-1268
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

2008

• CyhoeddwydA new PPM variant for Chinese text compression.
  Wu, P. & Teahan, W. J., 1 Gorff 2008, Yn: Natural Language Engineering. 14, 3, t. 417-430
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydExperiments with Grammatical Evolution in Java.
  Georgiou, L., Teahan, W. J. & Kacprzyk, J. (Golygydd), 1 Ion 2008, Studies in Computational Intelligence. 2008 gol. Springer, t. 45-62
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
• CyhoeddwydIdentification of gene function using prediction by partial matching (PPM) language models.
  Mahoui, M., Teahan, W. J., Sekhar, A. K. & Chilukuri, S., 1 Ion 2008, Proceeding of the 17th ACM conference on Information and knowledge management. 2008 gol. ACM, t. 779-786
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

2007

• CyhoeddwydThe dynamic animation of ambulatory arthropods.
  ap Cenydd, L. & Teahan, W. J., 1 Ion 2007.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2005

• CyhoeddwydKnowing-Aboutness: Question-Answering Using a Logic-Based Framework.
  Clifton, T., Teahan, W. J., Losada, D. E. (Golygydd) & Fernandez-Luna, J. M. (Golygydd), 1 Ion 2005, Advances in Information Retrieval, Lecture Notes in Computer Science, Vol 3408/2005. 2005 gol. Springer Berlin / Heidelberg, t. 230-244
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
• CyhoeddwydUniversal Text Preprocessing for Data Compression.
  Abel, J. & Teahan, W. J., 1 Mai 2005, Yn: IEEE Transactions on Computers. 54, 5, t. 497 - 507
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2003

• CyhoeddwydA repetition-based measure for verification of text collections and for text categorization
  Khmelev, D. V. & Teahan, W. J., 1 Awst 2003, t. 104-110.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydComment on "Language trees and zipping".
  Khmelev, Y. & Teahan, W. J., 28 Chwef 2003, Yn: Physical Review Letters. 90, 8, t. 089803
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUsing compression based language models for text categorization.
  Teahan, W. J., Harper, D. J., Croft, W. B. (Golygydd) & Lafferty, J. (Golygydd), 1 Ion 2003, Language Modeling for Information Retrieval: The Information Retrieval Series: Vol. 13. 2003 gol. Springer, t. 141-160
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod

• KESS II MRes with H R Wallingford- BUK2129

  01/02/2018 – 31/03/2024 (Wedi gorffen)

• KESS II MRes with CloodUP Ltd- BUK280

  01/10/2016 – 01/08/2022 (Wedi gorffen)

• Project AMBER

  01/10/2013 – 31/05/2018 (Wedi gorffen)

• Ktp With Vision Support Trading

  19/11/2007 – 12/11/2008 (Wedi gorffen)

• Esf - Phd 05/08 With Etl Solutions Ltd

  17/10/2005 – 31/07/2009 (Wedi gorffen)