| // |
| // Copyright © 2021 Arm Ltd and Contributors. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #include "Decoder.hpp" |
| |
| std::pair<int, float> kws::Decoder::decodeOutput(std::vector<int8_t>& modelOutput) |
| { |
| |
| std::vector<float> dequantisedOutput; |
| //Normalise vector values into new vector |
| for (auto& value : modelOutput) |
| { |
| float normalisedModelOutput = this->quantisationScale * (static_cast<float >(value) - |
| static_cast<float >(this->quantisationOffset)); |
| dequantisedOutput.push_back(normalisedModelOutput); |
| } |
| |
| //Get largest value in modelOutput |
| const std::vector<float>::iterator& maxElementIterator = std::max_element(dequantisedOutput.begin(), |
| dequantisedOutput.end()); |
| //Find the labelMapIndex of the largest value which corresponds to a key in a label map |
| int labelMapIndex = static_cast<int>(std::distance(dequantisedOutput.begin(), maxElementIterator)); |
| |
| //Round to two DP |
| float maxModelOutputProbability = std::roundf((*maxElementIterator) * 100) / 100; |
| |
| return std::make_pair(labelMapIndex, maxModelOutputProbability); |
| |
| } |
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