Iman Rahimi

34 Questions 30 Answers 0 Followers

Questions related from Iman Rahimi

Any list of ISI open access journal in Operation research,applied mathematic?

10 October 2017 5,577 3 View

How can I solve scipy installation error?

I try to install scipy via pip but I face this error: [31mException:Traceback (most recent call last): File "", line 2, in File "C:\Users\user...

07 July 2017 2,502 2 View

What does this error means"static function 'void populatebynonzero(IloModel,IloNumVarArray,IloRangeArray)' declared but not defined"?

I am using c++ to solve a simple linear model ,however there is a fatal error when compiling program: /////////////// #include ILOSTLBEGIN static void usage (const char...

06 June 2017 2,135 1 View

What is dereference of regular book and edited book?which one is more popular?

05 May 2017 8,617 0 View

Does anybody know benders decomposition with GAMS could help me?

Hi,I am using benders decomposition algorithm with GAMS for lot size problem,however there is a problem finding suitable lower bound and upper bound. anybody expert which could help me?

04 April 2017 465 0 View

Is it normal in using the the weighted sum method which some of solution found are not Pareto point??

I have tried to find Pareto point in multi -objective model with the weighted sum method ,however when I change the value of weights I observed some points do not have trade-off. Do you think is...

02 February 2017 7,209 0 View

What does this statement means in GAM"solved to optimality(within gap tolerance optca)?

I have a MIP problem,tried to solve it with GAMS (CPLEX solvduring setting different parameter I have found two kind of output in GAMS,(attached figures). one is:solved to optimality another one...

02 February 2017 8,537 0 View

Can anyone suggest some industrial engineering journals ranked Q4 in JCR,and IF below 1?

02 February 2017 2,844 0 View

Is it normal in acceleratedbender decomposition algorithm to reach convergence before second iteration?

I am using accelerated bender decomposition algorithm which lower and upper bound reach convergence before second iteration ,is it normal such as case? ,as I have attached file,it is shown after...

01 January 2017 9,110 6 View

Hi,can anybody introduce me any suitable website for creating online registration page?

I want to promote an event that need to register online,anybody knows any online website for creating free ?

12 December 2016 2,031 2 View

Greeting,I am using python 3.4,when I want to use sklearn for clustering,there is an error

I am using python 3.4 for clustering,and write this code: "from sklearn.cluster import KMeans" even I have installed related modules but there is below error: "ImportError: cannot import name...

12 December 2016 1,456 7 View

Why in large scale cases GAMS solver can not find feasible solution?

Greetings,in some cases GAMS solver can find optimal solution for small scale ,however with increasing scale of problem ,solver are not able to find a feasible solution even we have same...

12 December 2016 7,271 0 View

How can I draw a real /virtual vehicle routing map with points and rout?

I am trying to show some point with the routs between them on a real map ,what is easiest way to draw a map like vehicle routing problem?

12 December 2016 8,842 1 View

How can I add optimization library(linear and nonlinear) to C++?

greetings,I am using c++ for optimization mathematical problem,in this case how can I add optimization library to c++?

12 December 2016 2,939 7 View

As an engineering which language is more proper for data mining?R or Python?

Dear all, for data mining tasks,which programming language is more efficient ?R or Python?

11 November 2016 372 0 View

Dear researcher,I am looking for some expert researcher to collaborate for writing review paper ?

my expertise is about optimization solutions,operation research,supply chain management. However If anybody reputed researcher need someone for writing research paper in this these issue, I am...

07 July 2016 3,797 3 View

Dear researchers,is there any normal boundary intersection code(NBI) for finding pareto set in GAMS or matlab?

I am looking for pareto set in multi objective optimization,in this regard is there any GAMS or Matlab code regarding to NBI method?

05 May 2016 869 0 View

How can I correct Error 71 in GAMS program?

Hello dear researchers, I have a GAMS code which possesses Error 71 when I want to excute. I do not know how can I correct it.Can anybody help me in this regard? I have attached my codes.

05 May 2015 3,003 3 View

How can I write multi-objective with GAMS?

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...

01 January 2015 3,564 28 View

Can anyone help with this modelling approach?

This modelling approach could be used to establish one important part of reverse logistics network by defining optimum locations for collection points.The objective of this project is to determine...

08 August 2014 9,920 6 View

what is the impact of lower bound in linear programming relaxation for an inequalities?

07 July 2014 6,873 3 View

In an optimization problem, how can we add constraint with consideration number of variables?

Is there any relation between number of variables and constraints in an optimization problem?

07 July 2014 7,346 9 View

When and how can we add interest rate for monetary calculation?

What is the condition and properties of adding interest rate?

06 June 2014 3,730 4 View

Can anyone help me in CPLEX?

I am a beginner in CPLEX programming. I do not know how to write with CPLEX.

05 May 2014 7,689 1 View

What is theorem?

How can we structure and define a theorem?

04 April 2014 320 1 View

How can I change a nonlinear term to a linear one?

04 April 2014 6,571 11 View

Can anybody help me with how to write a paper with LATEX?

It is the first time for me to write paper with LATEX.

03 March 2014 9,288 38 View

What is multi-physics?

What is definition of multi-physics?

03 March 2014 8,051 1 View

Is there any criteria for clustering data with one attribute?

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?

12 December 2013 8,079 3 View

Advantages of re-clustering with new method?

Actually what can we gain from re-clustering?

09 September 2013 6,863 3 View

Who can explain the stop criteria in nephron? Which criteria must be met for blood to reabsorb and secrete?

07 July 2013 7,279 0 View

does anybody know what is the definition of stochastics and deterministics algorithm?

specially for supply chain network design

07 July 2013 8,057 1 View

Does anybody know how can I prepare attributes (altenatives,criteria) for a survey to use AHP method? Is there any sample in this regard?

Food industry,Halal food industry

07 July 2013 1,897 0 View

What is the meaning of an algorithm, in regards to when we want to simulate an anatomy structure? How can we convert it to an algorithm?

Like genetic algorithm or neural network?

06 June 2013 4,879 1 View