Gradient Based and Gradient free Optimization
8 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Meddour Aissam riad
le 12 Mar 2020
Réponse apportée : Matt J
le 12 Mar 2020
Hi,
I'm trying to do a comparaison between the different opitimization algorithm in terms of Computation Time.
The algo that am using:
PSO_NM,GA,Fmincon,Pattern_Search,Sumulated_Anealing
From what i knew before, i suppose that the Gradient free Optimization algorithm are far slower then the gradien based one
But by doing my simulation i'm seeing the that the gradient free are faster
i was wondering why? can you suggest some supposation
i'm restrecting the boundary the most possible.
and my objectif function is very sensible in a way that if i change one coefficient value by 0.0001, i'll get inf as a results (a lot of peaks i suppose)
0 commentaires
Réponse acceptée
Matt J
le 12 Mar 2020
and my objectif function is very sensible in a way that if i change one coefficient value by 0.0001, i'll get inf as a results (a lot of peaks i suppose)
Gradient-based optimizers are designed for smooth functions (ones which have gradients). It sounds like your objective is not smooth at all!
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Problem-Based Optimization Setup dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!