Decision Optimization

Decision Optimization

Delivers prescriptive analytics capabilities and decision intelligence to improve decision-making.


#Analytics
#DecisionOptimization
#DecisionOptimization
 View Only
  • 1.  Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 01/23/16 06:02 AM

    Originally posted by: ACH-CHEN


    Hello everybody

    I developed a fuzzy multi-objectives model. Indeed, I don't know it is possible to code  it using IBM ILOG CPLEX?

    Best regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 2.  Re: Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 01/23/16 07:41 AM


  • 3.  Re: Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 01/23/16 03:59 PM

    Originally posted by: ACH-CHEN


    Thank you, dear Alex, for your kind reply.

    I read the paper, it is not mentioned how they developed using CPLEX.

    Indeed, how I can integrate the membership function in CPLEX?

    Regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 4.  Re: Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 01/24/16 05:40 AM

    Hi,

    in

    3.5.2. Qualitative Objective Functions

    the membership function they used is described.

    In order to use linear programming you need to have not too irregular membership function.

    I hope this helps.

    regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 5.  Re: Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 07/24/17 02:48 PM

    Originally posted by: ACH-CHEN


    Hello,

    I try to use some commands to read a 4-dimensional array from Excel but didn't work. Please find attached the files.

    Could please give me some indication to solve this issue.

    Best regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer


  • 6.  Re: Fuzzy multi-objectives model modeling using ILOG COLEX ?

    Posted 07/25/17 08:46 AM

    Hi,

    what I would do is read a 2D array and the convert that into the 4D array

    {int} x=...;
        
        tuple ytype
        {
          int dc;
          int customer;
          string product;     
        }
        
        {ytype} y=...;
        
        sorted {string} productStrings={ t.product | t in y};
        
        int TCRSValues[x][y]=...;
        
        
        
        /* Transport cost of product p between center d and customer c in period t*/
        int TCRS[dc in DC][customer in Customers][product in Products][p in Periods]=
        TCRSValues[p][<dc,customer,item(productStrings,product-1)>];

    Let me attached the updates files.

    Regards


    #DecisionOptimization
    #OPLusingCPLEXOptimizer