svm_model.h

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/*
 * Copyright (c) 2019-2023, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once
 
namespace ML {
namespace SVM {
 
// Contains array(s) for matrix storage
template <typename math_t>
struct SupportStorage {
  int nnz      = -1;
  int* indptr  = nullptr;
  int* indices = nullptr;
  math_t* data = nullptr;
};
 
template <typename math_t>
struct SvmModel {
  int n_support;  
  int n_cols;     
  math_t b;       
 
  math_t* dual_coefs;
 
  SupportStorage<math_t> support_matrix;
 
  int* support_idx;
 
  int n_classes;  
  math_t* unique_labels;
};
 
};  // namespace SVM
};  // namespace ML