Questions tagged [genetic-algorithm]
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19 questions
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Genetic Algorithm VRP various sized initial routes
I wondered how GA would work out for a VRP problem where the initial solution consists of routes of various sizes.
I have the following routes from my initial solution:
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Could I use numpy.arrays to represent the chromosome when solve Job scheduling in GA
I'm trying to solve a Job scheduling problem using a Rank-Based Encoding genetic algorithm that I envision encoding like this:
Represent the chromosome as an m x n matrix, each row of the array ...
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Shift roster (calendar) - mathematic optimization algorithm
I have question about heuristic searching problem - I need to plan shift roster for workers.
My solution is to use some bio-inspired algorithm. My implementation is:
I created list of timeframes (...
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Need help writing a metaheuristic problem
I have a matrix which contains compatibility scores between objects. I have 56 objects, thus, the matrix dimensions are 56*56.
I need to group said objects in groups of 8 to 10 elements.
I have tried ...
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Optimization algorithm for space debris
I'm currently working on a research project to optimize the recovery of space debris. We have to recover 50 pieces of space debris with the minimum number of missions possible. The missions are sent ...
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Is evolution algorithm suitable for combinatorial optimization problem
I'm wondering if evolution-like (or genetic) algorithms are competitive for combinatorial optimization (CO) problems, such as knapsack, maximum independent set, travelling salesman etc. problems in ...
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Pygmo2: What is the point of evolving an archipelago in a loop if number of generations already set in algo
I want to solve a multi-objective problem with nsga2 or moead taking advantage of the parallelism available in pygmo library. I have seen a very nice example on github posted below. However I am not ...
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Job scheduling for a 2 stage job with 2 machines available for each stage
I am trying to solve a problem where I am provided a list of jobs that need to be scheduled to minimize the processing time. Every job has to be performed in 2 stages where the second stage can be ...
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Use GA for Assignment Problem?
I have a two-objective assignment problem that appears to converge really slowly to a solution.
Even if we just have 1 objective that minimizes costs, it appears to be very slow for a worker-task ...
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When to use Tabu Search or Genetic Algorithms and when not?
Are there any rules of thumb about when to implement which? For example, I am trying to solve OR scheduling problems. I see that majority of people have implemented Genetic Algorithms. However, more ...
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Are Metaheuristics and Evolutionary Algorithms the "Gold Standard" for the Traveling Salesman Problem?
Are Metaheuristics and Evolutionary Algorithms the "Gold Standard" for the Traveling Salesman Problem?
I am interested in learning more about how we have been able to solve the (famous) ...
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Genetic Algorithm
I am evaluating a genetic algorithm that was written for a vehicle routing problem with time windows. The problem was not solved with any exact method (or with any solver). I also do not know bound of ...
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Good book to get familiar with the key concepts of Operations Research for a person which didn't enjoy a good math education in university?
I am currently reading research papers on optimization problems in logistics and struggle to understand the math notation. Any good beginner friendly books you would recommend?
This is the paper I ...
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I didn't understand my problem with PSO and GA
I have a problem with three objective functions to be minimized, F1(interval value is [0,100]); F2(interval value is [0,100]); and F3(interval value is [0,20]). To solve my problem, I use Particle ...
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Relationship between Hypervolume and population size, number of generations, and number of functional evaluations?
I have a multi-objective optimization with the following properties:
Objective function: two non-linear functions and one linear function
Decision variable: two real variables (Bounded)
Constraint: ...