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local SoftmaxLayer = nerv.class("nerv.SoftmaxLayer", "nerv.Layer")
function SoftmaxLayer:__init(id, global_conf, layer_conf)
self.id = id
self.gconf = global_conf
self.dim_in = layer_conf.dim_in
self.dim_out = layer_conf.dim_out
self:check_dim_len(1, 1) -- two inputs: nn output and label
end
function SoftmaxLayer:init(batch_size)
if self.dim_in[1] ~= self.dim_out[1] then
nerv.error("mismatching dimensions of input and output")
end
end
function SoftmaxLayer:update(bp_err, input, output)
-- no params, therefore do nothing
end
function SoftmaxLayer:propagate(input, output)
output[1]:softmax(input[1])
end
function SoftmaxLayer:back_propagate(bp_err, next_bp_err, input, output)
nerv.error_method_not_implemented()
end
function SoftmaxLayer:get_params()
return nerv.ParamRepo({})
end
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