class

ExponentialLR

extendsLRScheduler

ExponentialLR

source edit

Geometric decay — multiply lr by $\gamma$ every epoch.

Math

\eta_t = \eta_0 \cdot \gamma^{t}

Attributes

gamma_float

Per-epoch multiplicative factor (typically slightly below 1).

Constructors

ctor

ExponentialLR

void ExponentialLR(Optimizer & opt, double gamma)

source edit

Build an exponential decay schedule.

Parameters

optOptimizer

Target optimiser.

gammafloat

Per-epoch multiplicative factor.

Methods

fnconst

compute_lr_at

→float

double compute_lr_at(int epoch)

source edit

Evaluate $\eta_0 \gamma^t$ at epoch.

Parameters

epochint

Current epoch.

Returns

float

base_lr_ * gamma_ ** epoch.

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Lucid3.0

class

ExponentialLR

extendsLRScheduler

ExponentialLR

source edit

Geometric decay — multiply lr by $\gamma$ every epoch.

Math

\eta_t = \eta_0 \cdot \gamma^{t}

Attributes

gamma_float

Per-epoch multiplicative factor (typically slightly below 1).

Constructors

ctor

ExponentialLR

void ExponentialLR(Optimizer & opt, double gamma)

source edit

Build an exponential decay schedule.

Parameters

optOptimizer

Target optimiser.

gammafloat

Per-epoch multiplicative factor.

Methods

fnconst

compute_lr_at

→float

double compute_lr_at(int epoch)

source edit

Evaluate $\eta_0 \gamma^t$ at epoch.

Parameters

epochint

Current epoch.

Returns

float

base_lr_ * gamma_ ** epoch.