84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
/****************************************************************************
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*
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* Copyright (c) 2022 Vivante Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************/
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#ifndef TIM_VX_OPS_UNIDIRECTIONAL_SEQUENCE_GRU_H_
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#define TIM_VX_OPS_UNIDIRECTIONAL_SEQUENCE_GRU_H_
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#include <array>
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#include "tim/vx/direct_map_op.h"
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#include "vsi_nn_pub.h"
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namespace tim {
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namespace vx {
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namespace ops {
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/**
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* ## UnidirectionalSequenceGRU
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*
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* - num_units : dimensionality of the output space.
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* - activation : Activation function to use.
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* - recurrent_activation : Activation function to use for the recurrent step.
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* - reset_after : whether to apply reset gate after or before matrix multiplication.
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* False = "before", True = "after".
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* - return_sequences : Whether to return the last output in the output sequence,
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* or the full sequence. Default: False.
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* - time_major : If True, the inputs and outputs will be in shape [feature, batch, timesteps],
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* in the False case, it will be [feature, timesteps, batch].
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*/
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class UnidirectionalSequenceGRU : public DirectMapOp {
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public:
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enum ActivationType {
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kNONE = 0,
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kRELU = 1,
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kRELU6 = 3,
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kTANH = 4,
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kSIGMOID = 6,
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kHARDSIGMOID = 31, /* temporary use 31 */
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};
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UnidirectionalSequenceGRU(
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Graph* graph, uint32_t num_units,
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ActivationType activation = ActivationType::kTANH,
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ActivationType recurrent_activation = ActivationType::kSIGMOID,
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vsi_bool reset_after = TRUE,
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vsi_bool return_sequences = FALSE, /*False: only return last state*/
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vsi_bool time_major = TRUE);
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std::shared_ptr<Operation> Clone(
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std::shared_ptr<Graph>& graph) const override;
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protected:
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const uint32_t num_units_;
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const ActivationType activation_;
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const ActivationType recurrent_activation_;
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const int32_t reset_after_;
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const int32_t return_sequences_;
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const int32_t time_major_;
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};
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} // namespace ops
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} // namespace vx
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} // namespace tim
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#endif /* TIM_VX_OPS_UNIDIRECTIONAL_SEQUENCE_GRU_H_ */ |