Chris Tofallis

University of Hertfordshire Business School

Associate Prof. of Decision Science. Principal Lecturer in Operational Research/Management Science

College Lane

Hatfield, Hertfordshire AL10 9AB

United Kingdom

http://tinyurl.com/ChrisTofallis

  • University of Hertfordshire Business School

SCHOLARLY PAPERS

28

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22

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13

Scholarly Papers (28)

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1.

A Better Measure of Relative Prediction Accuracy for Model Selection and Model Estimation

Journal of the Operational Research Society (2015) 66, 1352–1362
Number of pages: 25 Posted: 25 Jul 2015
Chris Tofallis
University of Hertfordshire Business School
Downloads 5,684 (2,713)
Citation 9

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prediction, forecasting, model selection, loss function, regression, time series

2.

Investment Volatility: A Critique of Standard Beta Estimation and a Simple Way Forward

European Journal of Operational Research, Vol. 187, pp. 1358-1367, 2008, U of Hertfordshire Business School Working Paper No. 2004:3
Number of pages: 16 Posted: 03 Jan 2008 Last Revised: 04 Apr 2019
Chris Tofallis
University of Hertfordshire Business School
Downloads 3,803 (5,398)
Citation 2

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investment analysis, beta, volatility, systematic risk, total beta

3.

Least Squares Percentage Regression

Journal of Modern Applied Statistical Methods, 2009
Number of pages: 12 Posted: 22 May 2009
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,941 (15,753)
Citation 14

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regression, error measures, relative error, percentage regression, weighted least squares, multiplicative error, heteroscedasticity.

4.

Model Fitting for Multiple Variables by Minimising the Geometric Mean Deviation

TOTAL LEAST SQUARES AND ERRORS-IN-VARIABLES MODELING: ALGORITHMS, ANALYSIS AND APPLICATIONS, S.Van Huffel, P.Lemmerling, eds., Kluwer Academic, 2002
Number of pages: 6 Posted: 03 Jan 2008
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,359 (27,236)

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Geometric mean functional relationship, least area criterion, least volume criterion

5.

Measuring Relative Accuracy: A Better Alternative to Mean Absolute Percentage Error

Hertfordshire Business School Working Paper (2013)
Number of pages: 24 Posted: 07 Nov 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,350 (27,558)

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forecasting, accuracy, error measure, loss function, scoring function, regression

6.

Combining Two Approaches to Efficiency Measurement

Journal of the Operational Research Society, Vol. 52, No. 11, pp. 1225-1231, 2001
Number of pages: 7 Posted: 04 Mar 2009
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,042 (39,954)

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data envelopment analysis, performance measurement, productivity, production theory

7.

Quantifying Victory: Napoleon's Armies’ Victories and Losses

Number of pages: 18 Posted: 14 Oct 2014
Max Lenk, Ron Lenk and Chris Tofallis
Independent, Independent and University of Hertfordshire Business School
Downloads 760 (61,758)

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quantitative history, mathematical history

8.

Model Building with Multiple Dependent Variables and Constraints

The Statistician, Vol. 48, No. 3, pp. 371-378, 1999
Number of pages: 9 Posted: 05 Mar 2009 Last Revised: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 757 (62,086)
Citation 2

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canonical correlation analysis, regression, model building

9.

Robust Correlation Measures

Number of pages: 4 Posted: 07 May 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 543 (94,728)
Citation 1

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correlation, robust, statistics

10.

Fitting Equations to Data with the Perfect Correlation Relationship

Hertfordshire Business School Working Paper, 2015
Number of pages: 11 Posted: 23 Dec 2015
Chris Tofallis
University of Hertfordshire Business School
Downloads 287 (195,236)
Citation 1

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data fitting, functional relationship, regression

11.

Add or Multiply? A Tutorial on Ranking and Choosing with Multiple Criteria

Tofallis, C. (2014). Add or multiply? A tutorial on ranking and choosing with multiple criteria. INFORMS Transactions on education, 14(3), 109-119.
Number of pages: 28 Posted: 01 Apr 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 136 (384,279)
Citation 1

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multiattribute decision making; ranking; scoring; aggregation; selection; teaching management science; teaching decision analysis; multiple criteria

12.

An Automatic-Democratic Approach to Weight Setting for the New Human Development Index

Journal of Population Economics, Forthcoming
Number of pages: 32 Posted: 03 Aug 2012
Chris Tofallis
University of Hertfordshire Business School
Downloads 82 (547,206)
Citation 2

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Human Development Index, index construction, social composite index, aggregation, ranking, data envelopment analysis

13.

A Different Approach to University Rankings

Higher Education, 2011
Number of pages: 21 Posted: 11 Nov 2011
Chris Tofallis
University of Hertfordshire Business School
Downloads 73 (585,022)

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university rankings, league tables, performance measurement

14.

Which Formula for National Happiness?

Socio-Economic Planning Sciences, 2019
Number of pages: 23 Posted: 02 May 2019
Chris Tofallis
University of Hertfordshire Business School
Downloads 53 (686,824)
Citation 1

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Happiness, Happiness Index, Subjective Well-Being, Multiplicative Model

15.

Chaotic Behaviour in a (Deterministic) Bank Account

British Review of Economic Issues, Vol. 17, No. 43, pp. 53-68, 1995
Number of pages: 9 Posted: 05 Mar 2009 Last Revised: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 53 (686,824)

Abstract:

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chaos, nonlinear dynamics

16.

Assessing Charities Using Data Envelopment Analysis

Tofallis, Chris, and Adrian Sargeant. "Assessing charities using data envelopment analysis." In: Performance Measurement 2000: Past, Present and Future ed. A.D.Neely. Centre for Business Performance, Cranfield University (2000).
Number of pages: 9 Posted: 06 Mar 2021
Chris Tofallis and Adrian Sargeant
University of Hertfordshire Business School and Henley Management College
Downloads 42 (757,328)

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non-profit, efficiency, data envelopment analysis, charity

17.

On Constructing a Composite Indicator with Multiplicative Aggregation and the Avoidance of Zero Weights in DEA

Journal of the Operational Research Society (2014) 65, 791–792
Number of pages: 4 Posted: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 40 (771,763)
Citation 2

Abstract:

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efficiency, data envelopment analysis

18.

Selecting the Best Statistical Distribution Using Multiple Criteria

Computers & Industrial Engineering (2008) 54, 690–694
Number of pages: 8 Posted: 07 May 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 37 (793,485)

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Ranking, Selection, Statistical distributions, Multi-criteria, Multiplicative value function

19.

Fitting an Equation to Data Impartially

Tofallis, C. Fitting an Equation to Data Impartially. (2023). Mathematics, 11(18), 3957; https://doi.org/10.3390/math11183957
Number of pages: 14 Posted: 21 Sep 2023 Last Revised: 28 Nov 2023
Chris Tofallis
University of Hertfordshire Business School
Downloads 36 (801,148)

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functional relationship, data fitting, errors in variables, linear regression, multivariate analysis

20.

A Multidimensional Ranking of Members of Parliament

Tofallis, C., Dunk, T., & Spencer, N. H. A Multidimensional Ranking of Members of Parliament. Radical Statistics (2022), 133, 1-27
Number of pages: 29 Posted: 21 Jul 2023
Chris Tofallis, Thomas Dunk and Neil H. Spencer
University of Hertfordshire Business School, University of Hertfordshire - School of Law and University of Hertfordshire - Business School
Downloads 34 (816,807)

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ranking, composite index, multiple criteria, multi-attribute, league table

21.

Objective Weights for Scoring: The Automatic Democratic Method

Multiple Criteria Decision Making (17), pp. 69-84, 2022
Number of pages: 16 Posted: 20 Jul 2023
Chris Tofallis
University of Hertfordshire Business School
Downloads 30 (849,364)

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multi-attribute decision making, weighting, ranking, performance measurement, composite indices, data envelopment analysis

22.

Input Efficiency Profiling: An Application to Airlines

Tofallis, C. (1997). Input efficiency profiling: an application to airlines. Computers & Operations Research, 24(3), 253-258.
Number of pages: 15 Posted: 31 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 23 (911,856)

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efficiency, data envelopment analysis, airlines

23.

Constrained Canonical Correlation Analysis on a Spreadsheet

Tofallis, C. (1999). Constrained Canonical Correlation Analysis on a Spreadsheet. Bulletin of the International Statistical Institute (1999), LVIII, Contributed Papers 3, 359-360.
Number of pages: 2 Posted: 06 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 20 (940,839)

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multivariate, regression, canonical correlation, performance measurement, multicriteria

24.

Improving Discernment in DEA Using Profiling

Tofallis, C. (1996). Improving discernment in DEA using profiling. Omega, 24(3), 361-364.
Number of pages: 10 Posted: 09 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 19 (950,647)
Citation 1

Abstract:

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efficiency, performance measurement, data envelopment analysis

25.

Neutral Data Fitting by Lines and Planes

Goodman, T., & Tofallis, C. (2007). Neutral data fitting by lines and planes. In Algorithms for Approximation (pp. 259-268). Springer, Berlin, Heidelberg.
Number of pages: 10 Posted: 06 Mar 2021
Tim Goodman and Chris Tofallis
affiliation not provided to SSRN and University of Hertfordshire Business School
Downloads 18 (960,690)
Citation 1

Abstract:

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data fitting, model fitting, regression, functional relationship

26.

Multi-Criteria Efficiency Profiling

Tofallis, C. (1996). Multi-Criteria Efficiency Profiling. In Multi-Objective Programming and Goal Programming (pp. 41-49). Springer, Berlin, Heidelberg.
Number of pages: 10 Posted: 06 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 13 (1,011,052)

Abstract:

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Efficiency, data envelopment analysis, performance measurement, productivity, production

27.

Modelling Best-Practice Frontiers when there are Multiple Outputs

Tofallis C. (1997) Modelling Best-Practice Frontiers When There Are Multiple Outputs. In: Caballero R., Ruiz F., Steuer R. (eds) Advances in Multiple Objective and Goal Programming. Lecture Notes in Economics and Mathematical Systems, vol 455. Springer, Berlin, Heidelberg.
Number of pages: 9 Posted: 15 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 12 (1,020,761)

Abstract:

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data envelopment analysis, canonical correlation, benchmarking, efficiency, multicriteria

28.

Multicriteria Ranking Using Weights Which Minimize the Score Range

Tofallis, C. (2010). Multicriteria ranking using weights which minimize the score range. In: New developments in multiple objective and goal programming (pp. 133-140). Springer, Berlin, Heidelberg.
Number of pages: 8 Posted: 08 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 10 (1,039,707)

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multicriteria, ranking, weighting, aggregation, maximin