Top new questions this week:
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I am sort of new to mathematical optimization and have to build some fairly complicated models for my thesis. I was wondering where I could find literature to help me develop more efficient versions ...
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Given a general function $f:\Bbb Z\to\Bbb R$ is there a simple way to verify whether $f(x)$ is pseudo-convex or not?
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I would like to know if my methodology was 'correct':
I am trying to conduct an experiment on my stores. I would like to find out the effect of a marketing campaign on the number of transactions.
Only ...
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I need to build a if-else constraint for this statement, where $x_P$ and $x_I$ are decision variables, and $C$ is a constant:
if $x_P \ge C$ then $x_I = x_P - C$ else $x_I = 0$.
Any help is greatly ...
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Suppose we have a two-stage stochastic program as follows:
\begin{equation}
\begin{split}
\min \ & c^Tx + \mathbb{E}_\xi[Q(x,\xi)] \\
& \text{where}\\
&Q(x,\xi)=\min q(\xi)^Ty\\
&Tx+...
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I'm working on an implementation of the simplex algorithm.
I want to solve problems in real time every 30 minutes. They could be interpreted as a classic transportation problem.
I couldn't really say ...
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Mostly when I search dynamic programming in google I get : dynamic programming (DP) in python, in C++, in java from web pages like geekforgeeks, litecode, codechef, and so on.
But in the operation ...
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Greatest hits from previous weeks:
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I am wondering what are the fastest ways(faster than classical dynamic programming) to solve the knapsack problem (to optimality) with $n$ items when $n$ is nearly equal to $10000$ ?
Apart from ...
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What approaches can I use for a Linear Programming problem with the additional constraint that if a decision variable falls below a certain threshold, then it should just be forced to 0.
I'm ...
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A company sells seven types of boxes, ranging in volume from 17 to 33 cubic feet. The demand and size of each box is given in the following table. The variable cost (in dollars) of producing each box ...
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Some say adding constraints cuts the feasible region smaller hence the same solver terminates faster due to the less search effort. Others say it adds more complexity to the problem and it may take ...
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I'm new to the OR world, and trying to learn the various tools available. I originally thought that Pyomo and Google OR tools were open source alternatives to commercial solvers like Gurobi or CPLEX.
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I'm trying to solve an optimization problem including following constraint, and I need to linearize it in a maximization nonlinear programming model. Please help me to reformulate it with mixed ...
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I am a beginning PhD student in math, and I would like to focus on optimization. I am learning programming for the first time, and I have written out some rudimentary optimization algorithms in both ...
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Can you answer this question?
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I'm trying to get the constraint matrix from a Gurobi model in C++.
In Python, one can get this by simply calling a method that will populate a scipy object (see this post). However, in a C++ fashion, ...
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