University of Hertfordshire

Dr Chris Tofallis PhD, MSc(Econ), BSc, PGCE

Chris Tofallis

Dr Chris Tofallis PhD, MSc(Econ), BSc, PGCE

Postal address:
University of Hertfordshire, Hatfield, Hertfordshire
United Kingdom

Publications

  1. 2020
  2. A novel healthcare resource allocation decision support tool: A forecasting-simulation-optimization approach

    Ordu, M., Demir, E., Tofallis, C. & Gunal, M., 3 Feb 2020, (E-pub ahead of print) In: Journal of the Operational Research Society. 2020, 1700186.

    Research output: Contribution to journalArticlepeer-review

  3. 2019
  4. A comprehensive modelling framework to forecast the demand for all hospital services

    Ordu, M., Demir, E. & Tofallis, C., 22 Mar 2019, In: The International Journal of Health Planning and Management. 34, 2, p. e1257-e1271 15 p.

    Research output: Contribution to journalArticlepeer-review

  5. Which formula for national happiness?

    Tofallis, C., 23 Feb 2019, (E-pub ahead of print) In: Socio-Economic Planning Sciences. 10 p.

    Research output: Contribution to journalArticlepeer-review

  6. A decision support system for demand and capacity modelling of an accident and emergency department

    Ordu, M., Demir, E. & Tofallis, C., 6 Jan 2019, (E-pub ahead of print) In: Health Systems. 26 p.

    Research output: Contribution to journalArticlepeer-review

  7. 2016
  8. Usage of enterprise resource planning systems in higher education institutions in Pakistan

    Ahmer, Z., Demir, E., Tofallis, C. & Asad, H., 2016, University of Hertfordshire, 26 p. (UH Business School Working Paper).

    Research output: Working paper

  9. 2015
  10. Fitting equations to data with the perfect correlation relationship

    Tofallis, C., 23 Dec 2015, University of Hertfordshire, 11 p. (Hertfordshire Business School Working Paper).

    Research output: Working paper

  11. A better measure of relative prediction accuracy for model selection and model estimation

    Tofallis, C., 1 Aug 2015, In: Journal of the Operational Research Society. 66, 8, p. 1352-1362

    Research output: Contribution to journalArticlepeer-review

  12. 2014
  13. Add or Multiply? A Tutorial on Ranking and Choosing with Multiple Criteria

    Tofallis, C., 27 May 2014, In: INFORMS Transactions on Education. 14, 3, p. 109-119 11 p.

    Research output: Contribution to journalArticlepeer-review

  14. Add or multiply? A tutorial on ranking and choosing with multiple criteria

    Tofallis, C., 2014, University of Hertfordshire, p. 28, (Hertfordshire Business School Working Paper).

    Research output: Working paper

  15. 2013
  16. An automatic-democratic approach to weight setting for the new human development index.

    Tofallis, C., 2013, In: Journal of Population Economics. 26, 4, p. 1325-1345 21 p.

    Research output: Contribution to journalArticlepeer-review

  17. 2012
  18. A different approach to university rankings

    Tofallis, C., Jan 2012, In: Higher Education. 63, 1, p. 1-18 18 p.

    Research output: Contribution to journalArticlepeer-review

  19. An automatic-democratic approach to weight setting for the new human development index

    Tofallis, C., 2012, University of Hertfordshire, p. 32, (UH Business School Working Paper).

    Research output: Working paper

  20. 2011
  21. A different approach to university rankings (WP)

    Tofallis, C., 2011, University of Hertfordshire, (UH Business School Working Paper).

    Research output: Working paper

  22. 2010
  23. Multicriteria ranking using weights which minimize the score range

    Tofallis, C., 2010, University of Hertfordshire, (UH Business School Working Paper).

    Research output: Working paper

  24. 2008
  25. Least Squares Percentage Regression

    Tofallis, C., Nov 2008, In: Journal of Modern Applied Statistical Methods. 7, 2, p. 526-534

    Research output: Contribution to journalArticlepeer-review

  26. Investment Volatility: A critique of standard beta estimation and a simple way forward

    Tofallis, C., 2008, In: European Journal of Operational Research. 187, 3, p. 1358-1367

    Research output: Contribution to journalArticlepeer-review

  27. Selecting the best statistical distribution using multiple criteria

    Tofallis, C., 2008, In: Computers and Industrial Engineering. 54, 3, p. 690-694

    Research output: Contribution to journalArticlepeer-review

  28. 2007
  29. Least Squares Percentage Regression

    Tofallis, C., 2007, University of Hertfordshire, (Business School Working Papers; vol. UHBS 2006-6).

    Research output: Working paper

  30. Neutral data fitting by lines and planes

    Goodman, T. & Tofallis, C., 2007, Algorithms for Approximation. Iske, A. & Levesley, J. (eds.). Springer, p. 259-268 10 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  31. 2005
  32. Estimating Invariant Principal Components Using Diagonal Regression

    Leznik, M. & Tofallis, C., 2005, University of Hertfordshire, (Business School Working Papers; vol. UHBS 2005-4).

    Research output: Working paper

  33. 2004
  34. Investment Volatility : A Critique of Standard Beta Estimation and a Simple Way Forward

    Tofallis, C., 2004, University of Hertfordshire, (Business School Working Papers; vol. UHBS 2004-3).

    Research output: Working paper

  35. 2003
  36. Multiple neutral data fitting

    Tofallis, C., 2003, In: Annals of Operations Research. 124, p. 69-79

    Research output: Contribution to journalArticlepeer-review

  37. Neutral data fitting in two and three dimensions

    Goodman, T. & Tofallis, C., 2003, University of Hertfordshire, (Business School Working Papers; vol. UHBS 2003:9).

    Research output: Working paper

  38. 2002
  39. Model fitting for multiple variables by minimising the geometric mean deviation

    Tofallis, C., 2002, Total Least Squares and Errors-in-Variables Modeling. VanHuffel, S. & Lemmerling, P. (eds.). DORDRECHT: Human Press / Springer, p. 261-267 7 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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