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Research

Dr David Worthington

Senior Lecturer

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  1. 2009
  2. Published

    Reflections on queue modelling from the last 50 years

    Worthington, D. J., 05/2009, In: Journal of the Operational Research Society. 60, S1, p. S83-S92 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  3. 2010
  4. Published

    Operations research diffusion in healthcare management

    Langabeer, J. & Worthington, D. J., 2010, In: Journal of Health Care Finance. 36, 3, p. 73-87 15 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  5. Published

    Simulation of career development in the European Commission

    Onggo, B. S. S., Pidd, M., Soopramanien, D. G. R. & Worthington, D. J., 05/2010, In: Interfaces. 40, 3, p. 184-195 12 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Published

    Stakeholders’ dynamics in ICT strategic projects in Saudi public hospitals: appreciative system concept – a ‘work in progress’ perspective

    Al-Ghaith, T., Brown, D. & Worthington, D., 14/07/2010. 8 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  7. 2011
  8. Published

    Stakeholders’ dynamics influence on ICT strategic projects in Saudi public hospitals: appreciative system concept – a ‘work in progress’ perspective

    Al-Ghaith, T., Brown, D. & Worthington, D., 8/06/2011.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  9. Published

    Approximate analysis of non-stationary loss queues and networks of loss queues with general service time distributions

    Izady, N. & Worthington, D. J., 09/2011, In: European Journal of Operational Research. 213, 3, p. 498-508 11 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  10. 2012
  11. Published

    Behavioural Modelling of Career Progression in the European Commission

    Onggo, S., Soopramanien, D., Pidd, M. & Worthington, D., 2012, In: European Journal of Operational Research. 222, 3, p. 632–641 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  12. Published

    Capacity Planning

    Worthington, D. & Utley, M., 2012, Handbook of Healthcare System Scheduling. Hall, R. W. . (ed.). New York: Springer, p. 11-30 20 p. (International Series in Operations Research & Management Science; no. 168).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter (peer-reviewed)

  13. Unpublished

    Comparing modelling approaches for corporate credit scoring using multi-level categories of risk

    Minussi, J., Soopramanien, D. G. R. & Worthington, D. J., 2012, (Unpublished).

    Research output: Working paper

  14. Published

    Setting Staffing Requirements for Time Dependent Queueing Networks: The Case of Accident and Emergency Departments

    Izady, N. & Worthington, D., 2012, In: European Journal of Operational Research. 219, 3, p. 531-540 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Unpublished

    Stability and out-of-time validation of credit risk models

    Minussi, J., Soopramanien, D. G. R. & Worthington, D. J., 2012, (Unpublished).

    Research output: Working paper

  16. Published

    Will delays in treatment jeopardize the population benefit from extending the time window for stroke thrombolysis?

    Pitt, M., Monks, T., Agarwal, P., Worthington, D., Ford, G., Lees, K., Stein, K. & James, M., 11/2012, In: Stroke. 43, 11, p. 2992-2997 6 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  17. 2013
  18. Published

    Stakeholder dynamics in strategic ICT projects

    Al-Ghaith, T., Brown, D. & Worthington, D., 15/08/2013. 6 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  19. Published

    Stakeholder dynamics in strategic ICT projects: appreciative systems perspective.

    Al-Ghaith, T., Brown, D. & Worthington, D., 10/09/2013. 6 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper › peer-review

  20. Published

    Stakeholder saliency dynamics in strategic ICT projects

    Al-Ghaith, T., Brown, D. & Worthington, D., 1/12/2013, 19th Americas Conference on Information Systems, AMCIS 2013 - Hyperconnected World: Anything, Anywhere, Anytime. p. 3056-3065 10 p. (19th Americas Conference on Information Systems, AMCIS 2013 - Hyperconnected World: Anything, Anywhere, Anytime; vol. 4).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  21. 2014
  22. Published

    Effects of state-dependent balking on multi-server non-stationary queueing systems

    Chassioti, E., Worthington, D. J. & Glazebrook, K. D., 03/2014, In: Journal of the Operational Research Society. 65, 2, p. 278-290 13 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  23. 2015
  24. Published

    Use of queue modelling in the analysis of elective patient treatment governed by a maximum waiting time guarantee

    Kozlowski, D. & Worthington, D., 1/07/2015, In: European Journal of Operational Research. 244, 1, p. 331-338 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  25. 2016
  26. Published

    A modelling tool for capacity planning in acute and community stroke services

    Monks, T., Worthington, D. J., Allen, M., Pitt, M., Stein, K. & James, M. A., 29/09/2016, In: BMC Health Services Research. 16, 8 p., 530.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  27. Published

    Input uncertainty quantification for simulation models with piecewise-constant non-stationary Poisson arrival processes

    Morgan, L., Titman, A. C., Worthington, D. J. & Nelson, B. L., 11/12/2016, WSC '16 Proceedings of the 2016 Winter Simulation Conference . Piscataway, NJ, USA: IEEE Press, p. 370-381 12 p. (WSC '16 Proceedings of the Winter Simulation Conference).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  28. 2017
  29. Published

    Staffing of time-varying queues using a geometric discrete time modelling approach

    Chen, X. & Worthington, D. J., 05/2017, In: Annals of Operations Research. 252, 1, p. 63-84 22 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  30. Published

    Detecting bias due to input modelling in computer simulation

    Morgan, L., Nelson, B. L., Titman, A. C. & Worthington, D. J., 3/12/2017, 2017 Winter Simulation Conference (WSC). Piscataway, NJ, USA: IEEE Press, p. 1974-1985 12 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  31. 2018
  32. Published

    Airline Disruption Recovery Using Symbiotic Simulation and Multi-fidelity Modelling

    Rhodes-Leader, L., Onggo, B. S. S., Worthington, D. J. & Nelson, B. L., 19/03/2018, Proceedings of the 9th Operational Research Society Simulation Workshop (SW18). Operational Research Society, p. 146-155 10 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  33. 2019
  34. Published

    Multi-fidelity simulation optimisation for airline disruption management

    Rhodes-Leader, L., Worthington, D. J., Nelson, B. L. & Onggo, B. S. S., 4/02/2019, 2018 Winter Simulation Conference (WSC). IEEE, p. 2179-2190 12 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

  35. E-pub ahead of print

    Symbiotic simulation for the operational management of inpatient beds: model development and validation using Δ-method

    Oakley, D., Onggo, B. S. & Worthington, D., 3/06/2019, (E-pub ahead of print) In: Health Care Management Science. 17 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  36. Published

    Detecting bias due to input modelling in computer simulation

    Morgan, L., Nelson, B., Titman, A. & Worthington, D., 16/12/2019, In: European Journal of Operational Research. 279, 3, p. 869-881 13 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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