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Re: [CPROG] Finde globalt max/min



Sune Fischer wrote:
> SA er en global søge metode til et kæmpe parameterrum og bygger
> grundlæggende på antagelser om glatte funktioner.

Glatte funktioner? SA evaluere kun funktionen i punkter, og du kan
vælge dine hop som du ønsker, så funktiontioner behøver ikke engang
at være kontinuert!

> Hvis problemet er som du beskriver (en mapping f:R->R) så er SA
> at skyde gåspurve med kanoner.

Hvis funktionen er kontinuert og differentiabel så er gradient
descent metoder bedrer, hvis funktionen ikke er differentiabel,
eller hvis det er meget dyrt at udregne afledede så kunne man
bruge SA.

> Kan du ikke bare søge dit datasæt igennem råt og brutalt, finde
> et slags middel for støjen og så trække den fra/lægge til?
Det ville også være min approach.

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