Browsing by Author "Yakhchali, Siamak Haji"

Now showing items 1-8 of 8

    • Application of duration measure in quantifying the sensitivity of project returns to changes in discount rates 

      Yousefi, Vahidreza; Yakhchali, Siamak Haji; Tamošaitienė, Jolanta (Administrative sciences, 2019)
      In this research, the concept of Duration with a new application in project management has been defined. The Duration of each project provides the project manager with a combined measure containing concepts of return, cost ...

    • Combining Monte Carlo simulation and Bayesian networks methods for assessing completion time of projects under risk 

      Namazian, Ali; Yakhchali, Siamak Haji; Yousefi, Vahidreza; Tamošaitienė, Jolanta (International journal of environmental research and public health: Special Issue "Occupational safety and risks in construction", 2019)
      In this study, Monte Carlo simulation and Bayesian network methods are combined to present a structure for assessing the aggregated impact of risks on the completion time of a construction project. Construction projects ...

    • Developing a fuzzy model based on subtractive clustering for road header performance prediction 

      Yazdani-Chamzini, Abdolreza; Razani, Mojtaba; Yakhchali, Siamak Haji; Zavadskas, Edmundas Kazimieras; Turskis, Zenonas (Automation in Construction, 2013)
      Road header performance prediction plays a significant role in the successful implementation of a tunneling project; so that, there is a need for accurate prediction of the advance rate of tunneling. However, there is ...

    • Forecasting gold price changes by using adaptive network fuzzy inference system 

      Yazdani-Chamzini, Abdolreza; Yakhchali, Siamak Haji; Volungevičienė, Diana; Zavadskas, Edmundas Kazimieras (Journal of business economics and management, 2012)
      Developing a preci se and accurate model of gold price is critical to assets management because of its unique features. In this paper, adaptive neuro-fuzzy inference system (ANFIS) and artifi cial neural network (ANN) model ...

    • Project portfolio selection using fuzzy AHP and VIKOR techniques 

      Fouladgar, Mohammad Majid; Yazdani-Chamzini, Abdolreza; Zavadskas, Edmundas Kazimieras; Yakhchali, Siamak Haji; Ghasempourabadi, Mohammad Hossein (Transformations in business & economics, 2012)
      This paper deals with the problem of project portfolio selection by using fuzzy AHP and VIKOR techniques. Project portfolio selection for making decisions on investment is a critical decision in many companies and ...

    • Proposing a new methodology for prioritising the investment strategies in the private sector of Iran 

      Yazdani-Chamzini, Abdolreza; Shariati, Shahram; Yakhchali, Siamak Haji; Zavadskas, Edmundas Kazimieras (Economic research = Ekonomska istraživanja, 2014)
      To demonstrate the potential application of the proposed model, a numerical example is illustrated and investigated. The results show that the proposed model has a high ability to prioritise the strategies of investing.

    • The impact made on project portfolio optimisation by the selection of various risk measures 

      Yousefi, Vahidreza; Yakhchali, Siamak Haji; Šaparauskas, Jonas; Kiani, Sarmad (Inžinerinė ekonomika = Engineering economics, 2018)
      This study addresses the effect of selecting an appropriate risk measure and the impact of this choice on the efficient frontier of the project portfolio of an organisation. The appropriate choice of a firm’s project ...

    • Using a integrated MCDM model for mining method selection in presence of uncertainty 

      Yazdani-Chamzini, Abdolreza; Yakhchali, Siamak Haji; Zavadskas, Edmundas Kazimieras (Ekonomska istraživanja = Economic research, 2012)
      The aim objective of this study is to model mining method selection problem for a real world case in Angouran mine which is one of the major zinc producers in Iran. According to many problems of ore body extraction are ...