Fuzzy Systems
and Soft Computing

Volume 9, No. 1, 2014

• Das A., Bera U.K.
  «A bi-objective safety based solid transportation model under uncertain environment»
  
  This paper mainly investigate a new solid transportation model with safety constraint under uncertain environment where the unit transportation cost, desired safety and time, the supplies, the demands, the conveyance capacities all are uncertain in nature. While transporting items from its origins to destinations through different conveyances, there are some difficulties/risks to transport the items due to weather complications, bad road, insurgency etc. in some routes. Due to this the total desired safety factor is being introduced. However with the use of inverse uncertain distribution the proposed model under uncertainty converted to its deterministic form by taking expected value on objective functions and confidence level on the constraints. Finally a numerical example is provided to show the application of the model.

  Keywords: multi objective solid transportation problem, uncertainty theory, weighted mean technique, safety factor.

  Resources: title page of the article.

  Bibliographic citation
  Das A., Bera U.K. A bi-objective safety based solid transportation model under uncertain environment. Nechetkie sistemy i myagkie vychisleniya [Fuzzy Systems and Soft Computing], 2014, vol. 9, no. 1, pp. 5-18.
• Borisov V.V., Senkov A.V.
  «Models of decision-making support on the basis of risks-situations»
  
  Introduction of concepts "risk-situation" and "risk-event" is proved. These concepts allow to consider complex character and necessary parametres of risks. Management process by risks-situations in organizational-technical systems is described. Set of fuzzy models for decision-making support on the basis of risks-situations is offered: model of risks-situations; estimation model of risks-situations; choice model of ranged groups of actions. The generalised algorithm of interaction of these models is described.

  Keywords: risk-situation, decision-making support, fuzzy models.

  Resources: title page of the article.

  Bibliographic citation
  Borisov V.V., Senkov A.V. Models of decision-making support on the basis of risks-situations. Nechetkie sistemy i myagkie vychisleniya [Fuzzy Systems and Soft Computing], 2014, vol. 9, no. 1, pp. 19-38. (in Russian)
• Rzayev R., Shixaliyeva H., Agamaliyev M., Veliyev A.
  «Time series modeling on the base of data fuzzy analysis»
  
  By specific example of the time series of «Marginality of sales» indicator there are considered known fuzzy forecasting models which differ in rules of fuzzification and/or defuzzification. In the context of this study this paper presents a new approach to defuzzification of outputs of fuzzy time series on the base of applying the fuzzy set point-estimation method. As compared with some well-known defuzzification rules proposed method improves the statistical quality of time series forecasting.

  Keywords: time series, fuzzy set, fuzzy predict, fuzzy relationship, point estimate.

  Resources: title page of the article.

  Bibliographic citation
  Rzayev R., Shixaliyeva H., Agamaliyev M., Veliyev A. Time series modeling on the base of data fuzzy analysis. Nechetkie sistemy i myagkie vychisleniya [Fuzzy Systems and Soft Computing], 2014, vol. 9, no. 1, pp. 39-86. (in Russian)

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