29 lines
1014 B
Nim
29 lines
1014 B
Nim
# Copyright 2022 Mattia Giambirtone & All Contributors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import std/math
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# Mean squared error
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func mse*(x, y: float): float = pow(x - y, 2)
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type Loss* = ref object
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function*: proc (x, y: float): float
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derivative*: proc (x, y: float): float
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proc newLoss*(function: proc (x, y: float): float, derivative: proc (x, y: float): float): Loss =
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## Creates a new activation object
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new(result)
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result.function = function
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result.derivative = derivative |