ExponentialTemperature

class pyoptex.doe.cost_optimal.codex.temperature.ExponentialTemperature(T0, rho=0.95, kappa=4)

Exponential temperature which decreases with an accepted state, and increases with a rejected state. The rate of increase/decrease is represented by kappa. E.g. kappa = 4 requires 4 rejections to reach the same temperature as one acceptation.

Attributes

rhofloat

The rate at which the temperature decreases.

kappaint or float

The number of rejections per accept for a stable temperature.

alphafloat

Derived value from kappa and rho.

T0float

The starting temperature.

Tfloat

The current temperature.

__init__(T0, rho=0.95, kappa=4)

Initializes the temperature.

Attributes

T0float

The starting temperature.

rhofloat

The rate at which the temperature decreases.

kappaint or float

The number of rejections per accept for a stable temperature.

Methods

ExponentialTemperature.accepted()	Update when a new design has been accepted.
ExponentialTemperature.rejected()	Update when a new design has been rejected.
ExponentialTemperature.reset()	Resets the temperature.