diff options
Diffstat (limited to 'ml/SamplesBuffer.h')
-rw-r--r-- | ml/SamplesBuffer.h | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/ml/SamplesBuffer.h b/ml/SamplesBuffer.h deleted file mode 100644 index ca60f4b91..000000000 --- a/ml/SamplesBuffer.h +++ /dev/null @@ -1,149 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#ifndef SAMPLES_BUFFER_H -#define SAMPLES_BUFFER_H - -#include <iostream> -#include <vector> - -#include <cassert> -#include <cstdlib> -#include <cstring> - -#include <dlib/matrix.h> - -typedef double CalculatedNumber; -typedef dlib::matrix<CalculatedNumber, 0, 1> DSample; - -class Sample { -public: - Sample(CalculatedNumber *Buf, size_t N) : CNs(Buf), NumDims(N) {} - - void initDSample(DSample &DS) const { - for (size_t Idx = 0; Idx != NumDims; Idx++) { - DS(Idx) = std::abs(CNs[Idx]); - } - } - - void add(const Sample &RHS) const { - assert(NumDims == RHS.NumDims); - - for (size_t Idx = 0; Idx != NumDims; Idx++) - CNs[Idx] += RHS.CNs[Idx]; - }; - - void diff(const Sample &RHS) const { - assert(NumDims == RHS.NumDims); - - for (size_t Idx = 0; Idx != NumDims; Idx++) - CNs[Idx] -= RHS.CNs[Idx]; - }; - - void copy(const Sample &RHS) const { - assert(NumDims == RHS.NumDims); - - std::memcpy(CNs, RHS.CNs, NumDims * sizeof(CalculatedNumber)); - } - - void scale(CalculatedNumber Factor) { - for (size_t Idx = 0; Idx != NumDims; Idx++) - CNs[Idx] *= Factor; - } - - void lag(const Sample &S, size_t LagN) { - size_t N = S.NumDims; - - for (size_t Idx = 0; Idx != (LagN + 1); Idx++) { - Sample Src(S.CNs - (Idx * N), N); - Sample Dst(CNs + (Idx * N), N); - Dst.copy(Src); - } - } - - const CalculatedNumber *getCalculatedNumbers() const { - return CNs; - }; - - void print(std::ostream &OS) const; - -private: - CalculatedNumber *CNs; - size_t NumDims; -}; - -inline std::ostream& operator<<(std::ostream &OS, const Sample &S) { - S.print(OS); - return OS; -} - -class SamplesBuffer { -public: - SamplesBuffer(CalculatedNumber *CNs, - size_t NumSamples, size_t NumDimsPerSample, - size_t DiffN, size_t SmoothN, size_t LagN, - double SamplingRatio, std::vector<uint32_t> &RandNums) : - CNs(CNs), NumSamples(NumSamples), NumDimsPerSample(NumDimsPerSample), - DiffN(DiffN), SmoothN(SmoothN), LagN(LagN), - SamplingRatio(SamplingRatio), RandNums(RandNums), - BytesPerSample(NumDimsPerSample * sizeof(CalculatedNumber)), - Preprocessed(false) { - assert(NumDimsPerSample == 1 && "SamplesBuffer supports only one dimension per sample"); - }; - - void preprocess(std::vector<DSample> &Samples); - void preprocess(DSample &Feature); - std::vector<Sample> getPreprocessedSamples() const; - - size_t capacity() const { return NumSamples; } - void print(std::ostream &OS) const; - -private: - size_t getSampleOffset(size_t Index) const { - assert(Index < NumSamples); - return Index * NumDimsPerSample; - } - - size_t getPreprocessedSampleOffset(size_t Index) const { - assert(Index < NumSamples); - return getSampleOffset(Index) * (LagN + 1); - } - - void setSample(size_t Index, const Sample &S) const { - size_t Offset = getSampleOffset(Index); - std::memcpy(&CNs[Offset], S.getCalculatedNumbers(), BytesPerSample); - } - - const Sample getSample(size_t Index) const { - size_t Offset = getSampleOffset(Index); - return Sample(&CNs[Offset], NumDimsPerSample); - }; - - const Sample getPreprocessedSample(size_t Index) const { - size_t Offset = getPreprocessedSampleOffset(Index); - return Sample(&CNs[Offset], NumDimsPerSample * (LagN + 1)); - }; - - void diffSamples(); - void smoothSamples(); - void lagSamples(); - -private: - CalculatedNumber *CNs; - size_t NumSamples; - size_t NumDimsPerSample; - size_t DiffN; - size_t SmoothN; - size_t LagN; - double SamplingRatio; - std::vector<uint32_t> &RandNums; - - size_t BytesPerSample; - bool Preprocessed; -}; - -inline std::ostream& operator<<(std::ostream& OS, const SamplesBuffer &SB) { - SB.print(OS); - return OS; -} - -#endif /* SAMPLES_BUFFER_H */ |