10 Questions 76 Answers 0 Followers
Questions related from Mahmoud Heshmat
Dear Researchers, I need some real data of a patient treated with chemotherapy. This data includes the tumor reduction with time. For example, what is the tumor size (or the number of cancerous...
10 January 2017 3,293 5 View
Dear Researchers, I am using CPLEX Optimizer to solve a MIP model, and the computation time is big. When I checked the PC performance, I found that about 0.1% of the CPU and 258 MB are used by the...
12 November 2016 3,285 4 View
Dear Researchers, I hope this question finds you researching well. I have a problem of coding the lower and upper bounds of a summation such as these two constraints. If someone knows how to code...
01 November 2016 1,736 9 View
Dear Researchers, I am using ARENA Input Analyzer to get the best probability distribution from data (attached). The resulted p-value of Chi Square Test < 0.005 and for K-S Test > 0.15....
06 October 2016 9,219 3 View
Dear Researchers, I hope my question find you researching well. I have a mixed integer programming model has a big computation time, so I decided to use metaheuristic. I can use the genetic...
30 August 2016 5,645 10 View
Dear Researchers, I hope this question finds you doing well. I have coded an MIP model on Cplex, but when I run it, it gives a relaxed solution. However, the model has a global solution on another...
21 August 2016 7,888 4 View
The attached snapshot is the create module in Arena. I have a maximum number of entities arrive to the system (20). If I set the mean time between arrival=1 minute and run, the net arrived...
13 June 2016 3,599 8 View
I have a Mixed Integer Non Linear Programming Model coded in LINGO solver, how to know that it is convex or not? Any answer is appreciated.
11 June 2016 4,697 11 View
I have nonlinear constraints in a mixed integer nonlinear model. But the computation time is big. how to make linearization for the nonlinear constraints using Lingo solver? Thanks in advance
11 June 2016 7,096 12 View
Dear Respected Researchers, I hope this question finds you well. The weighted sum objective function is one of the techniques used to solve multi-objective models. This weighted sum objective...
01 January 1970 8,317 3 View
