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41 lines
1.3 KiB
41 lines
1.3 KiB
9 years ago
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/* Copyright (c) 2016 Baidu, Inc. 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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#pragma once
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#include "Layer.h"
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#include "LinearChainCTC.h"
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namespace paddle {
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class CTCLayer : public Layer {
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public:
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explicit CTCLayer(const LayerConfig& config) : Layer(config) {}
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virtual bool init(const LayerMap& layerMap, const ParameterMap& parameterMap);
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virtual void forward(PassType passType);
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void forwardImp(const Argument& softmaxSeqs, const Argument& labelSeqs);
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virtual void backward(const UpdateCallback& callback);
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void backwardImp(const UpdateCallback& callback,
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const Argument& softmaxSeqs, const Argument& labelSeqs);
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protected:
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size_t numClasses_;
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bool normByTimes_;
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std::vector<LinearChainCTC> ctcs_;
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std::vector<Argument> tmpCpuInput_;
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};
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} // namespace paddle
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