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

• PublishedIaith a Thechnoleg yng Nghymru: Cyfrol I
  Prys, D. (Editor), Jones, D. (Contributor), Prys, G. (Contributor), Watkins, G. (Contributor), Cooper, S., Roberts, J. C. (Contributor), Butcher, P. (Contributor), Farhat, L. (Contributor), Teahan, W. & Prys, M. (Contributor), 5 Oct 2021, Bangor: Prifysgol Bangor University. 120 p.
  Research output: Book/Report › Book
• PublishedLanguage and Technology in Wales: Volume I
  Prys, D. (Editor), Jones, D. (Contributor), Prys, G. (Contributor), Watkins, G. (Contributor), Cooper, S. (Contributor), Roberts, J. C. (Contributor), Butcher, P. (Contributor), Farhat, L. (Contributor), Teahan, W. (Contributor) & Prys, M. (Contributor), 5 Oct 2021, Bangor: Prifysgol Bangor University. 120 p.
  Research output: Book/Report › Book
• PublishedTracking 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 Jun 2021, In: Ocean Engineering. 229, 108650.
  Research output: Contribution to journal › Article › peer-review
• PublishedUsing Compression to Discover Interesting Behaviours in a Hybrid Braitenberg Vehicle
  Ahmed, N. & Teahan, W. J., 21 Jan 2021, In: IEEE ACCESS. 9, p. 11316-11327 12 p.
  Research output: Contribution to journal › Article › peer-review
• PublishedVisualisation 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., May 2021. 2 p.
  Research output: Contribution to conference › Paper › peer-review

2020

• PublishedEnhancing the stability of Organic Photovoltaics through Machine Learning
  David, T., Scapin Anizelli, H., Jacobsson, T. J., Gray, C., Teahan, W. & Kettle, J., Dec 2020, In: Nano Energy. 78, 105342.
  Research output: Contribution to journal › Article › peer-review
• PublishedUsing Compression to Find Interesting One Dimensional Cellular Automata
  Ahmed, N. & Teahan, W., Apr 2020, In: Complex and Intelligent Systems. 6, 1, p. 123–146 26 p.
  Research output: Contribution to journal › Article › peer-review

2019

• PublishedAutomatic Correction of Arabic Dyslexic Text
  Alamri, M. & Teahan, W., 21 Feb 2019, In: Computers. 8, 1, 19.
  Research output: Contribution to journal › Article › peer-review
• PublishedUsing 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., Nov 2019, In: IEEE Journal of Photovoltaics. 9, 6, p. 1768-1773
  Research output: Contribution to journal › Article › peer-review

2018

• PublishedA Compression-Based Toolkit for Modelling and Processing Natural Language Text
  Teahan, W., 22 Nov 2018, In: Information. 9, 294, p. 1-29 29 p., 9, 294.
  Research output: Contribution to journal › Article › peer-review
• PublishedA compression based toolkit for text processing
  Teahan, W., 10 Apr 2018.
  Research output: Working paper
• PublishedAn automatic cryptanalysis of simple substitution ciphers using compression
  Alkazaz, N. R., Irvine, S. A. & Teahan, W. J., 2018, In: Information Security Journal: A Global Perspective. 27, 1, p. 57-75
  Research output: Contribution to journal › Article › peer-review
• PublishedVirtual reality’s effect on parameter optimisation for crowd-sourced procedural animation
  Henshall, G., Teahan, W. & Ap Cenydd, L., 1 Sept 2018, In: The Visual Computer. 34, 9, p. 1255-1268 13 p.
  Research output: Contribution to journal › Article › peer-review

2017

• PublishedA New Thinning Algorithm for Arabic Script
  Teahan, W. & Alghamdi, M., 1 Jan 2017, In: International Journal of Computer Science and Information Security. 15, 1, p. 204-211 8 p.
  Research output: Contribution to journal › Article › peer-review
• PublishedCrowd-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, p. 48-55 7 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
• PublishedExperimental Evaluation of Arabic OCR Systems
  Alghamdi, M. & Teahan, W., 6 Sept 2017, In: PSU (Prince Sultan University) Research Review. 1, 3, p. 229-241 12 p.
  Research output: Contribution to journal › Article › peer-review
• PublishedTowards Real-Time Animation Optimisation in VR
  Henshall, G., Teahan, W. & Ap Cenydd, L., 14 Sept 2017, Computer Graphics and Visual Computing (CGVC). Wan, T. R. & Vidal, F. (eds.). Manchester Metropolitan University: The Eurographics Association
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2016

• PublishedHow 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 Jul 2016, Transactions on Computational Science : Special Issue on Cyberworlds and Cybersecurity. Gavrilova, M. L., Tan, C. J. K. & Sourin, A. (eds.). Berlin, Heidelberg: Springer Berlin / Heidelberg, Vol. XXVIII. p. 88-107 20 p. (Lecture Notes in Computer Science; vol. 9590).
  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
• PublishedTowards ethical robots: Revisiting Braitenberg's vehicles
  Headleand, C. J., Cenydd, L. A. & Teahan, W., 1 Sept 2016, 2016 SAI Computing Conference (SAI). p. 469-477 9 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2015

• PublishedA new hybrid metric for verifying parallel corpora of Arabic-English
  Alkahtani, S. M., Alkahtani, S., Liu, W. & Teahan, W. J., 24 Jan 2015.
  Research output: Contribution to conference › Paper
• PublishedAnthropomorphisation 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 Jul 2015.
  Research output: Contribution to conference › Paper
• PublishedDoes 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 Oct 2015, 2015 International Conference on Cyberworlds (CW). p. 145-152 8 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
• PublishedImplementation 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 Jan 2015, In: International Journal of Digital Information and Wireless Communications. 5, 1
  Research output: Contribution to journal › Article › peer-review
• PublishedThe 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 Nov 2015, Research and Development in Intelligent Systems XXXII. Springer, p. 345-357
  Research output: Chapter in Book/Report/Conference proceeding › Chapter
• PublishedTowards 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 Jun 2015, Artificial Life and Intelligent Agents. 2015 ed. Springer, p. 3-16
  Research output: Chapter in Book/Report/Conference proceeding › Chapter
• PublishedTowards crowd-sourced parameter optimisation for procedural animation
  Henshall, G., Teahan, W. & Ap Cenydd, L., 1 Oct 2015, 2015 International Conference on Cyberworlds. Visby, Sweden, p. 379-381 3 p.
  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2014

• PublishedAdaptive compression-based models of Chinese text
  Teahan, W. J., Wu, P. & Liu, W., 7 Jul 2014, p. 874-881.
  Research output: Contribution to conference › Paper
• PublishedBenchmarking Grammar-Based Genetic Programming Algorithms
  Headleand, C. J., Ap-Cenydd, L. & Teahan, W. J., 9 Dec 2014.
  Research output: Contribution to conference › Paper
• PublishedBerry Eaters: Learning Colour Concepts with Template Based Evolution
  Headleand, C. J., Ap-Cenydd, L. & Teahan, W. J., 30 Jul 2014.
  Research output: Contribution to conference › Paper
• PublishedExperiments with a PPM Compression-Based Method for English-Chinese Bilingual Sentence Alignment
  Liu, W., Chang, Z. & Teahan, W. J., 3 Sept 2014, Statistical Language and Speech Processing Volume 8791 of the series Lecture Notes in Computer Science. Springer, p. 70-81
  Research output: Chapter in Book/Report/Conference proceeding › Chapter
• PublishedPPM Compression-based method for English-Chinese Bilingual Sentence Alignment
  Liu, W., Chang, Z. & Teahan, W. J., 14 Oct 2014.
  Research output: Contribution to conference › Paper
• PublishedRandomised Multiconnected Environment Generator: Bangor University Technical Report CS-TR-004-2014
  Headleand, C., Henshall, G., Ap-Cenydd, L. & Teahan, W., 20 Oct 2014, Bangor University, p. 1-5.
  Research output: Working paper
• PublishedUniversal text preprocessing and postprocessing for PPM using Alphabet Adjustment
  Alhawiti, K. & Teahan, W. J., 26 Mar 2014, p. 395.
  Research output: Contribution to conference › Paper

2013

• PublishedAn embodied approach to arthropod animation
  Ap-Cenydd, L., Teahan, W. J. & Computer Animation and Virtual Worlds, [. V. (Editor), 1 Jan 2013, In: Computer Animation and Virtual Worlds. 24, 1, p. 65-83
  Research output: Contribution to journal › Article › peer-review
• PublishedGrammatical Herding
  Headleand, C. J. & Teahan, W. J., 22 Jan 2013, In: Journal of Computer Science and Systems Biology. 6, 2, p. 042-047
  Research output: Contribution to journal › Article › peer-review
• PublishedStoryboarding 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 May 2013, In: Information Visualization. 14, 1, p. 27-50
  Research output: Contribution to journal › Article › peer-review

2011

• PublishedConstituent Grammatical Evolution
  Georgiou, L. & Teahan, W. J., 1 Jan 2011, Proceedings of the International Joint Conference on Artificial Intelligence. 2011 ed. Unknown, p. 1261-1268
  Research output: Chapter in Book/Report/Conference proceeding › Chapter

2008

• PublishedA new PPM variant for Chinese text compression.
  Wu, P. & Teahan, W. J., 1 Jul 2008, In: Natural Language Engineering. 14, 3, p. 417-430
  Research output: Contribution to journal › Article › peer-review
• PublishedExperiments with Grammatical Evolution in Java.
  Georgiou, L., Teahan, W. J. & Kacprzyk, J. (Editor), 1 Jan 2008, Studies in Computational Intelligence. 2008 ed. Springer, p. 45-62
  Research output: Chapter in Book/Report/Conference proceeding › Chapter
• PublishedIdentification of gene function using prediction by partial matching (PPM) language models.
  Mahoui, M., Teahan, W. J., Sekhar, A. K. & Chilukuri, S., 1 Jan 2008, Proceeding of the 17th ACM conference on Information and knowledge management. 2008 ed. ACM, p. 779-786
  Research output: Chapter in Book/Report/Conference proceeding › Chapter

2007

• PublishedThe dynamic animation of ambulatory arthropods.
  ap Cenydd, L. & Teahan, W. J., 1 Jan 2007.
  Research output: Contribution to conference › Paper

2005

• PublishedKnowing-Aboutness: Question-Answering Using a Logic-Based Framework.
  Clifton, T., Teahan, W. J., Losada, D. E. (Editor) & Fernandez-Luna, J. M. (Editor), 1 Jan 2005, Advances in Information Retrieval, Lecture Notes in Computer Science, Vol 3408/2005. 2005 ed. Springer Berlin / Heidelberg, p. 230-244
  Research output: Chapter in Book/Report/Conference proceeding › Chapter
• PublishedUniversal Text Preprocessing for Data Compression.
  Abel, J. & Teahan, W. J., 1 May 2005, In: IEEE Transactions on Computers. 54, 5, p. 497 - 507
  Research output: Contribution to journal › Article › peer-review

2003

• PublishedA repetition-based measure for verification of text collections and for text categorization
  Khmelev, D. V. & Teahan, W. J., 1 Aug 2003, p. 104-110.
  Research output: Contribution to conference › Paper
• PublishedComment on "Language trees and zipping".
  Khmelev, Y. & Teahan, W. J., 28 Feb 2003, In: Physical Review Letters. 90, 8, p. 089803
  Research output: Contribution to journal › Article › peer-review
• PublishedUsing compression based language models for text categorization.
  Teahan, W. J., Harper, D. J., Croft, W. B. (Editor) & Lafferty, J. (Editor), 1 Jan 2003, Language Modeling for Information Retrieval: The Information Retrieval Series: Vol. 13. 2003 ed. Springer, p. 141-160
  Research output: Chapter in Book/Report/Conference proceeding › Chapter

• KESS II MRes with H R Wallingford- BUK2129

  01/02/2018 – 31/03/2024 (Finished)

• KESS II MRes with CloodUP Ltd- BUK280

  01/10/2016 – 01/08/2022 (Finished)

• Project AMBER

  01/10/2013 – 31/05/2018 (Finished)

• Ktp With Vision Support Trading

  19/11/2007 – 12/11/2008 (Finished)

• Esf - Phd 05/08 With Etl Solutions Ltd

  17/10/2005 – 31/07/2009 (Finished)