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README.md

ParticleSwarmOptimization

This repo contains 3 implmentations of Particle Swarm Optimization

It goes with these 2 blog posts

If you are looking to use this in an application and want it to run multi-threaded parrallel 2 is the best to use.

Example usage

open ParticleSwarmOptimization_Parallel_2

let target_point = [23.0;54.0]
let loss_func (x : list<float>) =  x |> List.map2 (fun x y -> sin 1.0/x-sin 1.0/y) target_point |> List.sum |> abs
let random = new System.Random()
let initial_weights = seq{ while true do yield [random.NextDouble()*1000.0;random.NextDouble()*1000.0]};

let args = Args(inertia_weight=[0.8; 0.8], particles=10, success_threshold=0.01, iterations = 10);
let (global_best_params, global_best_loss, particles) = execute args loss_func initial_weights;;

printfn "Particles %A" particles
printfn "Best loss %A" global_best_loss

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