Improve parameter lists in optimisers.jl
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janEbert
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@ -12,7 +12,7 @@ Classic gradient descent optimiser with learning rate `η`.
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For each parameter `p` and its gradient `δp`, this runs `p -= η*δp`
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# Parameters
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- Learning rate (`η`): Amount by which the gradients are discounted before updating
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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# Examples
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@ -46,10 +46,10 @@ end
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Gradient descent optimizer with learning rate `η` and momentum `ρ`.
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# Parameters
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- Learning rate (`η`): Amount by which gradients are discounted before updating the
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weights.
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- Momentum (`ρ`): Controls the acceleration of gradient descent in the relevant direction
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and therefore the dampening of oscillations.
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Momentum (`ρ`): Controls the acceleration of gradient descent in the
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prominent direction, in effect dampening oscillations.
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# Examples
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```julia
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@ -79,9 +79,10 @@ end
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Gradient descent optimizer with learning rate `η` and Nesterov momentum `ρ`.
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# Parameters
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- Learning rate (`η`): Amount by which the gradients are discounted before updating the
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weights.
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- Nesterov momentum (`ρ`): The amount of Nesterov momentum to be applied.
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Nesterov momentum (`ρ`): Controls the acceleration of gradient descent in the
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prominent direction, in effect dampening oscillations.
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# Examples
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```julia
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@ -115,8 +116,10 @@ algorithm. Often a good choice for recurrent networks. Parameters other than lea
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generally don't need tuning.
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# Parameters
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- Learning rate (`η`)
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- Momentum (`ρ`)
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Momentum (`ρ`): Controls the acceleration of gradient descent in the
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prominent direction, in effect dampening oscillations.
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# Examples
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```julia
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@ -146,8 +149,9 @@ end
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[ADAM](https://arxiv.org/abs/1412.6980v8) optimiser.
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# Parameters
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- Learning rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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# Examples
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@ -181,8 +185,9 @@ end
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[Rectified ADAM](https://arxiv.org/pdf/1908.03265v1.pdf) optimizer.
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# Parameters
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- Learning rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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# Examples
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@ -223,8 +228,9 @@ end
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[AdaMax](https://arxiv.org/abs/1412.6980v9) is a variant of ADAM based on the ∞-norm.
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# Parameters
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- Learning rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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# Examples
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@ -260,7 +266,8 @@ parameter specific learning rates based on how frequently it is updated.
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Parameters don't need tuning.
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# Parameters
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- Learning rate (`η`)
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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# Examples
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```julia
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@ -291,7 +298,7 @@ rate based on a window of past gradient updates.
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Parameters don't need tuning.
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# Parameters
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- Rho (`ρ`): Factor by which gradient is decayed at each time step.
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- Rho (`ρ`): Factor by which the gradient is decayed at each time step.
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# Examples
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```julia
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@ -323,8 +330,9 @@ The [AMSGrad](https://openreview.net/forum?id=ryQu7f-RZ) version of the ADAM
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optimiser. Parameters don't need tuning.
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# Parameters
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- Learning Rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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# Examples
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@ -358,8 +366,9 @@ end
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Parameters don't need tuning.
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# Parameters
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- Learning rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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# Examples
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@ -394,10 +403,11 @@ end
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weight decay regularization.
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# Parameters
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- Learning rate (`η`)
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- Decay of momentums (`β::Tuple`): Exponential decay for the first (β1) and the
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second (β2) momentum estimate.
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- `decay`: Decay applied to weights during optimisation.
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- `decay`: Decay applied to weights during optimisation.
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# Examples
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```julia
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@ -464,17 +474,18 @@ function apply!(o::InvDecay, x, Δ)
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end
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"""
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ExpDecay(eta = 0.001, decay = 0.1, decay_step = 1000, clip = 1e-4)
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ExpDecay(η = 0.001, decay = 0.1, decay_step = 1000, clip = 1e-4)
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Discount the learning rate `eta` by the factor `decay` every `decay_step` steps till
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Discount the learning rate `η` by the factor `decay` every `decay_step` steps till
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a minimum of `clip`.
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# Parameters
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- Learning rate (`eta`)
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- `decay`: Factor by which the learning rate is discounted.
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- `decay_step`: Schedule decay operations by setting number of steps between two decay
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operations.
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- `clip`: Minimum value of learning rate.
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- Learning rate (`η`): Amount by which gradients are discounted before updating
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the weights.
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- `decay`: Factor by which the learning rate is discounted.
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- `decay_step`: Schedule decay operations by setting the number of steps between
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two decay operations.
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- `clip`: Minimum value of learning rate.
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# Examples
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To apply exponential decay to an optimiser:
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@ -510,7 +521,7 @@ end
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Decay weights by `wd`.
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# Parameters
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- Weight decay (`wd`)
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- Weight decay (`wd`)
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"""
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mutable struct WeightDecay
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wd::Real
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