51 lines
1.5 KiB
51 lines
1.5 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#include "Layer.h"
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#include "paddle/utils/Logging.h"
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namespace paddle {
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/**
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* A layer for checking EOS for each sample:
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* - output_id = (input_id == conf.eos_id)
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*
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* The result is stored in output_.ids.
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* It is used by recurrent layer group.
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*/
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class EosIdCheckLayer : public Layer {
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public:
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explicit EosIdCheckLayer(const LayerConfig& config) : Layer(config) {}
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bool init(const LayerMap& layerMap,
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const ParameterMap& parameterMap) override {
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bool ret = Layer::init(layerMap, parameterMap);
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CHECK_EQ(1UL, inputLayers_.size());
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return ret;
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}
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void forward(PassType passType) override {
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Layer::forward(passType);
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const Argument& input = getInput(0);
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IVector::resizeOrCreate(output_.ids, input.ids->getSize(), useGpu_);
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output_.ids->isEqualTo(*input.ids, config_.eos_id());
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}
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void backward(const UpdateCallback& callback) override {}
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};
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REGISTER_LAYER(eos_id, EosIdCheckLayer);
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} // namespace paddle
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