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Operational Research Methodology
Pagel C, Prost A, Nair N, Tripathy P, Costello A, Utley M (2012)
Monitoring mortality trends in low-resource settings
Bull World Health Organ 2012;90:474–476
Kotiadis AA, Vasilakis C (2011), A participative modelling framework for developing conceptual models in healthcare simulation studies, Proceedings of the 2010 Winter Simulation Conference, Eds B. Johansson, S. Jain, J. Montoya-Torres, J. Hugan, and E. Yücesan.
Utley M, Treasure T (2010)
Interpreting data from surgical follow-up studies: the role of modeling
Journal of Thoracic Oncology. 5(6 Suppl 2):S200-2.
Gallivan S, Pagel C, Utley M (2010)
Simple sums and useful products - in praise of minimalism
In: Blake J and Carter M.eds., International Perspectives on Operations Research and Health Care; pp:51-60
Pagel C, Smith D, Gallivan S, Utley M (2009)
Application of a branch and bound algorithm to a stochastic pharamacokinetic model
In: Lubicz,M.ed., Operational Research Applied to Health Services in Action; pp:255-262
Utley M, Gallivan S, M Jit (2009)
Application of a simple analytical model of capacity requirements
In: Lubicz,M.ed., Operational Research Applied to Health Services in Action; pp:243-253
Gallivan S, Utley M, Pagel C, Richards D (2009)
Applying operational research techniques to the reorganisation of mental health care in the UK
In: Lubicz,M.ed., Operational Research Applied to Health Services in Action; pp:155-162
Gallivan, S (2009)
Applying mathematical methods to problems associated with health care
In: Lubicz,M.ed., Operational Research Applied to Health Services in Action; pp:65-80
Vasilakis C, Lecznarowicz D, Lee C. (2009)
Developing model requirements for patient flow simulation studies using the Unified Modelling Language (UML)
Journal of Simulation. 3: 141-149
El-Darzi E, Abbi R, Vasilakis C, Gorunescu F, Gorunescu M, Millard P (2009)
Length of stay-based clustering methods for patient grouping
In: Intelligent Patient Management 189: 39-56
Pagel C, Gallivan S. (2009)
Exploring potential consequences on mortality estimates of errors in clinical databases
IMA Journal of Management Mathematics. 20(4): 385-393
Utley M, Chaussalet, Baker R. (2009)
Applying mathematics to problems in health care: a call to pencils
IMA Journal of Management Mathematics, 20(4): 323-325
Utley M, Gallivan S, Pagel C, Richards D. (2009)
Analytical methods for calculating the distribution of the occupancy of each state within a multi-state flow system
IMA Journal of Management Mathematics. 20(4): 345-355
Pagel C, Utley M, Gallivan S. (2008)
The dynamic forecasting of short to medium term workload based on current case mix
In: Operations Research for Health Care Delivery Engineering. Proceedings of 33rd International Annual Conference on Operational Research Applied to Health Services (ORAHS' 2007) Saint Etienne, France; 1 pp:265-272 ISBN: 978-2-86272-507-9
Abbi R, El-Darzi E, Vasilakis, Millard P. (2008)
Analysis of stopping criteria for the EM algorithm in the context of patient grouping according to length of stay
In: 2008 4th International IEEE Conference "Intelligent Systems Varna, Bulgaria ISBN: 978-1-4244-1739-1/08
Abbi R, El-Darzi E, Vasilakis, Millard PH. (2008)
A Gaussian mixture model approach to grouping patients according to their hospital length of stay
In: 21st IEEE International Symposium on Conference-based Medical Systems (CBMS'08), Finland, IEEE Press pp 524-529
Debicki D, Ferko N, Demarteau N, Gallivan S, Bauch C, Anonychuk A, Mantovani L, Capri S, Cheng-Yang C, Baudouin S, Annemans L. (2008)
Comparison of detailed and succinct cohort modelling approaches in a multi-regional evaluation of cervical cancer vaccination.
Vaccine 26S: F16-F28
Abbi R, El-Darzi E, Vasilakis C, Millard P (2008)
Length of stay based grouping and classification methodology for modelling patient flow.
Journal of Operations and Logistics. 2(2): II1-II9
Smith D, Pagel C, Utley M, Gallivan S (2008)
Quantifying the impact of non-adherence to drug therapy: a technical note concerning an application of a branch and bound algorithm.
Health Care Management Science. 11: 302-305.
Gallivan S (2008)
Challenging the role of calibration, validation and sensitivity analysis in relation to models of health care processes
Health Care Management Science. 11: 208-213
Gallivan S, Pagel C (2008)
Modelling of errors in databases
Health Care Management Science. 11(1): 35-40
Sobolev B, Harel D, Vasilakis C, Levy A (2008)
Using the Statecharts paradigm for simulation of patient flow in surgical care
Health Care Management Science. 11:79-86
Gallivan S, Utley M, Jit M, Pagel, C (2007)
A computational algorithm assoicated with patient progress modelling
Computational Management Science. 4:283-299
Treasure T, Utley M, Hunt I. (2007)
When professional opinion is not enough.
British Medical Journal. 334:831-832
Tan C, Treasure T, Browne J, Utley M, Davies CWH, Hemingway H. (2007)
Seeking consensus by formal methods: a health warning.
Journal of the Royal Society of Medicine 100:10-14
Utley M, Gallivan S, Mills M, Mason M, Hargraves C. (2007)
A consensus process for identifying a priortised list of study questions.
Health Care Management Science. 10: 105-110
Gallivan S. (2006)
The use of patient progress modelling in health OR - an overview.
Keynote Papers OR48.
ISBN 0 903440 38 5
Gallivan S. (2005)
Assessing mortality rates from dubious data - When to stop doing statistics and start doing mathematics.
Health Care Management Science. 8: 237-241.
Sherlaw-Johnson C. (2005)
A method for detecting runs for good and bad clinical outcomes on variable life-adjusted display (VLAD) charts.
Health Care Management Science. 8: 61-65.
Gallivan S. (2003)
How likely is it that a run of poor outcomes is unlikely?
European Journal of Operational Research. 150: 46-52.
Utley M, Gallivan S, Treasure T, Valencia O. (2003)
Analytical methods for calculating the capacity required to operate an effective booked admissions policy for elective inpatient services.
Health Care Management Science. 6: 97-104.
Sherlaw-Johnson C, Gallivan S, Burridge J. (1995)
Estimating Markov transition Matrix from Observational Data
Journal Operational Research Society 46:405-410
Treasure T, Gallivan S. (1995)
Quality of Life Data: How can we get best quality from them?
Journal of the Royal Society of Medicine 88: 125-126
Leaning MS, Boroujerdi MA. (1991)
A system for compartmental modelling and simulation
Computer methods and programs in Biomedicine 35:71-92
RRP Jackson (1989)
Some applications of queuing theory in Operational Research (1953 - 1989)
IMA Journal of Math Applied Business and Industry 2, 127-140