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Interval-valued fuzzy decision trees with optimal neighbourhood perimeter (2014)
Journal Article
Lertworaprachaya, Y., Yang, Y., & John, R. (2014). Interval-valued fuzzy decision trees with optimal neighbourhood perimeter. Applied Soft Computing, 24, doi:10.1016/j.asoc.2014.08.060

This research proposes a new model for constructing decision trees using interval-valued fuzzy membership values. Most existing fuzzy decision trees do not consider the uncertainty associated with their membership values, however, precise values of f... Read More about Interval-valued fuzzy decision trees with optimal neighbourhood perimeter.

Uncertainty representation of grey numbers and grey sets (2014)
Journal Article
Yang, Y., Liu, S., & John, R. (2014). Uncertainty representation of grey numbers and grey sets. IEEE Transactions on Cybernetics, 44(9), doi:10.1109/TCYB.2013.2288731

In the literature there is a presumption that a grey set and an interval-valued fuzzy set are equivalent. This presumption ignores the existence of discrete components in a grey number. In this paper new measurements of uncertainties of grey numbers... Read More about Uncertainty representation of grey numbers and grey sets.

Grey sets and greyness (2012)
Journal Article
Yang, Y., & John, R. (2012). Grey sets and greyness. Information Sciences, 185(1), doi:10.1016/j.ins.2011.09.029

This paper discusses the application of grey numbers for uncertainty representation. It highlights the difference between grey sets and interval-valued fuzzy sets, and investigates the degree of greyness for grey sets. It facilitates the representati... Read More about Grey sets and greyness.

Interval type-2 fuzzy modelling and stochastic search for real-world inventory management (2012)
Journal Article
Miller, S., Gongora, M., Garibaldi, J., & John, R. (2012). Interval type-2 fuzzy modelling and stochastic search for real-world inventory management. Soft Computing, 16(8), doi:10.1007/s00500-012-0848-y

Real-world systems present a variety of challenges to the modeller, not least of which is the problem of uncertainty inherent in their operation. In this research, an interval type-2 fuzzy model is applied to a real-world problem, the goal being to d... Read More about Interval type-2 fuzzy modelling and stochastic search for real-world inventory management.

Quantification of perception clusters using R-fuzzy sets and grey analysis
Conference Proceeding
Khuman, A. S., Yang, Y., John, R., & Liu, S. (in press). Quantification of perception clusters using R-fuzzy sets and grey analysis

This paper investigates the use of the R-fuzzy significance measure hybrid approach introduced by the authors in a previous work; used in conjunction with grey analysis to allow for further inferencing, providing a higher dimension of accuracy and un... Read More about Quantification of perception clusters using R-fuzzy sets and grey analysis.

Intuitionistic fuzzy similarity measures and their role in classification
Journal Article
Baccour, L., Alimi, A., & John, R. Intuitionistic fuzzy similarity measures and their role in classification. Journal of Intelligent Systems, 25(2), doi:10.1515/jisys-2015-0086

We present some similarity and distance measures between intuitionistic fuzzy sets (IFSs). Thus, we propose two semi-metric distance measures between IFSs. The measures are applied to classification of shapes and handwritten Arabic sentences describe... Read More about Intuitionistic fuzzy similarity measures and their role in classification.


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