Bausager
48f329feef
Sync public mirror / sync (push) Failing after 27s
Started on regulaization in Loss.h. I need to refactor the matsum.h since I need a total sum over the matrix. Also matmul needs a elementwise matmul function, which is the next this in the ragulaization
86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
#pragma once
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#include "./utils/vector.h"
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#include "./utils/matrix.h"
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#include "./core/omp_config.h"
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namespace numerics{
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template <typename T>
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T matmean(const utils::Matrix<T>& A) {
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T mean(T{0});
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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for (uint64_t i = 0; i < cols; ++i) {
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for (uint64_t j = 0; j < rows; ++j) {
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mean += A(j, i);
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}
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}
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mean /= (static_cast<T>(rows)* static_cast<T>(cols));
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return mean;
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}
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template <typename T>
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void inplace_matmean_row(const utils::Matrix<T>& A, utils::Vector<T>& b) {
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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if (b.size() != cols){
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b.resize(cols, T{0});
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}
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for(uint64_t j = 0; j < cols; ++j){
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for (uint64_t i = 0; i < rows; ++i){
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b[j] += A(i, j);
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}
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b[j] /= static_cast<T>(rows);
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}
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}
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template <typename T>
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void inplace_matmean_cols(const utils::Matrix<T>& A, utils::Vector<T>& b) {
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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if (b.size() != rows){
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b.resize(rows, T{0});
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}
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for(uint64_t i = 0; i < rows; ++i){
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for (uint64_t j = 0; j < cols; ++j){
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b[i] += A(i, j);
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}
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b[i] /= static_cast<T>(cols);
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}
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}
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template <typename T>
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utils::Vector<T> matmean_row(const utils::Matrix<T>& A) {
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utils::Vector<T> b(A.rows(), T{0});
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inplace_matmean_row(A, b);
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return b;
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}
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template <typename T>
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utils::Vector<T> matmean_col(const utils::Matrix<T>& A) {
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utils::Vector<T> b(A.cols(), T{0});
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inplace_matmean_cols(A, b);
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return b;
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}
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} // namespace numerics
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