27 Questions 33 Answers 0 Followers
Questions related from Iman Rahimi
I have seen many scholars use CPLEX solver in GAMS as they can solve the problem with ILOG CPLEX software. So in this case,they should possesses same results?
18 February 2017 214 11 View
is there any trick for using benders decomposition for binary programming?
16 February 2017 692 1 View
I am using GAMS for solving a MILP problem which includes binary variables. However there is a problem in the solution. Surprisingly, I have seen that one of the binary variables in the solution...
24 January 2017 2,464 8 View
I have used epsilon constraint method as well ass the sum weighted method to find Pareto point for bi-objective model;in this case I have found same results ,same number of Pareto points,can we...
16 January 2017 8,481 7 View
I am using accelerated bender decomposition algorithm with GAMS,in this case lower bound and upper bound overlap together before finishing second iteration but program is not stop until the end of...
04 January 2017 8,935 3 View
greetings,I am using c++ for optimization mathematical problem,in this case how can I add optimization library to c++?
24 December 2016 2,052 6 View
Dear researchers, I am implementing design of experiment ,full factorial ,however after analyzing ,there is no sign of factor for predicting model. Actually software(design expert) dose not...
04 July 2016 9,919 3 View
dear researchers my project is related to extract solar radiation from MODIS product and I want to use ENVI software , but I couldn't find suitable equation or formula for this subject , I should...
27 April 2015 4,806 4 View
there are several network models for performance evaluating of supply chain,including radial or non radial,slackbased,.. what is the best way for evaluating performance when we consider supply...
03 April 2015 2,852 4 View
Dear friendsI am trying to do multi-objective optimization with the weighted sum -method,but I could not able to find Pareto set solution between two conflict objective,from my point of view,maybe...
26 January 2015 8,413 27 View
Thanks in advance.
08 December 2014 1,129 9 View
When do we need to do sensitive analysis and what relationship and parameters should be check in supply chain network design?
01 August 2014 1,963 6 View
Considering a logistic system including plant,warehouses,supplier,retailers in single period with different transportation modes,with initial investment, How could we make different scenarios?what...
13 July 2014 9,533 12 View
Is there any relation between number of variables and constraints in an optimization problem?
03 July 2014 9,808 9 View
Sometimes there is a gap in an optimization model, such as: Min cx subject to: AX
20 May 2014 1,934 6 View
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26 April 2014 7,994 1 View
I have developed integer optimization programming for a supply chain network.
17 April 2014 6,222 2 View
Inventory control has important role for supply chain network design in multi echelon, multi period. I'm looking for the most significant problem facing this network.
10 April 2014 8,797 9 View
As above.
03 April 2014 945 3 View
When I want to insert figures to my documents with Latex(MikTex) all figures put on the same position at the end of section.
26 March 2014 6,562 48 View
We have four sets of data for clustering, and want to cluster them into two clusters. We have only one attribute in this regard. How can we classify them?
02 December 2013 2,502 2 View
How can I prepare a questionnaire?
20 October 2013 1,399 6 View
In this issue how can I define objective function? On the other hand does anybody know any criteria for dividing clusters that would be useful for genetic algorithm? Actually this is a framework...
14 October 2013 1,139 2 View
Can somebody recommend a sample of questionnaire in this regard, and how to prepare it?
13 October 2013 7,180 2 View
I am doing a survey for a mega steel factory as case study for quality management. Does anybody know which factors should be taken into account?
11 October 2013 7,848 1 View
Actually what can we gain from re-clustering?
25 September 2013 2,300 3 View
When I want to obtain importance of every criteria and alternative, how can I prepare a questionnaire for this goal? Is there any source that could be helpful?
10 July 2013 8,100 17 View