• Publications
  • Influence
Efficiency decomposition in network data envelopment analysis: A relational model
  • Chiang Kao
  • Computer Science, Mathematics
  • Eur. J. Oper. Res.
  • 1 February 2009
Traditional studies in data envelopment analysis (DEA) view systems as a whole when measuring the efficiency, ignoring the operation of individual processes within a system. This paper builds aExpand
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Efficiency measurement for parallel production systems
  • Chiang Kao
  • Computer Science, Mathematics
  • Eur. J. Oper. Res.
  • 1 August 2009
In the real world there are systems which are composed of independent production units. The conventional data envelopment analysis (DEA) model uses the sum of the respective inputs and outputs of allExpand
  • 209
  • 31
Network data envelopment analysis: A review
  • Chiang Kao
  • Mathematics, Computer Science
  • Eur. J. Oper. Res.
  • 16 November 2014
Network data envelopment analysis (DEA) concerns using the DEA technique to measure the relative efficiency of a system, taking into account its internal structure. The results are more meaningfulExpand
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A fuzzy linear regression model with better explanatory power
Previous studies on fuzzy linear regression analysis have a common characteristic of increasing spreads for the estimated fuzzy responses as the independent variable increases its magnitude, which isExpand
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  • PDF
Fractional programming approach to fuzzy weighted average
This paper proposes a fractional programming approach to construct the membership function for fuzzy weighted average. Based on the α-cut representation of fuzzy sets and the extension principle, aExpand
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Least-squares estimates in fuzzy regression analysis
Abstract Regression is a very powerful methodology for forecasting, which is considered as an essential component of successful OR applications. In this paper an idea stemmed from the classical leastExpand
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Efficiency measurement for network systems: IT impact on firm performance
A recent development in DEA (data envelopment analysis) examines the internal structure of a system so that more information regarding sources that cause inefficiency can be obtained. This paperExpand
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Solving fuzzy transportation problems based on extension principle
Abstract Transportation models play an important role in logistics and supply chain management for reducing cost and improving service. This paper develops a procedure to derive the fuzzy objectiveExpand
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Interval efficiency measures in data envelopment analysis with imprecise data
  • Chiang Kao
  • Mathematics, Computer Science
  • Eur. J. Oper. Res.
  • 16 October 2006
The conventional data envelopment analysis (DEA) measures the relative efficiencies of a set of decision making units (DMUs) with exact values of inputs and outputs. For imprecise data, i.e.,Expand
  • 123
  • 12
Fuzzy measures for correlation coefficient of fuzzy numbers
Correlation coefficient of random variables has wide applications in statistical analysis. This paper extends the applications to fuzzy environment, with a methodology for calculating the correlationExpand
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