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-- The following methods must be implemented to let a layer work properly
local Param = nerv.class('nerv.Param')
function nerv.Param:__init(id, global_conf)
self.id = id
self.gconf = global_conf
end
function nerv.Param:get_info()
return self.info
end
function nerv.Param:set_info(info)
self.info = info
end
function nerv.Param:read(pfhandle)
nerv.error_method_not_implemented()
end
function nerv.Param:write(pfhandle)
nerv.error_method_not_implemented()
end
local Layer = nerv.class('nerv.Layer')
function nerv.Layer:__init(id, global_conf, ...)
nerv.error_method_not_implemented()
end
function nerv.Layer:init(id)
nerv.error_method_not_implemented()
end
function nerv.Layer:update(bp_err, input, output)
nerv.error_method_not_implemented()
end
function nerv.Layer:propagate(input, output)
nerv.error_method_not_implemented()
end
function nerv.Layer:back_propagate(next_bp_err, bp_err, input, output)
nerv.error_method_not_implemented()
end
function nerv.Layer:check_dim_len(len_in, len_out)
local expected_in = table.getn(self.dim_in)
local expected_out = table.getn(self.dim_out)
if len_in > 0 and expected_in ~= len_in then
nerv.error("layer %s expects %d inputs, %d given",
self.id, len_in, expected_in)
end
if len_out > 0 and expected_out ~= len_out then
nerv.error("layer %s expects %d outputs, %d given",
self.id, len_out, expected_out)
end
end
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