1 // Copyright 2016 The TensorFlow Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // ============================================================================= 15 16 #ifndef TENSORFLOW_CONTRIB_TENSOR_FOREST_HYBRID_CORE_OPS_UTILS_H_ 17 #define TENSORFLOW_CONTRIB_TENSOR_FOREST_HYBRID_CORE_OPS_UTILS_H_ 18 #include <vector> 19 20 #include "tensorflow/core/framework/tensor.h" 21 #include "tensorflow/core/platform/types.h" 22 23 namespace tensorflow { 24 namespace tensorforest { 25 26 // Returns the probability that the point falls to the left. 27 float LeftProbability(const Tensor& point, const Tensor& weight, float bias, 28 int num_features); 29 30 float LeftProbabilityK(const Tensor& point, std::vector<int32> feature_set, 31 const Tensor& weight, float bias, int num_features, 32 int k); 33 34 // Returns a random set of num_features_to_pick features in the 35 // range [0, num_features). Must return the same set of 36 // features for subsequent calls with the same tree_num, node_num, and 37 // random_seed. This allows us to calculate feature sets between calls to ops 38 // without having to store their values. 39 void GetFeatureSet(int32 tree_num, int32 node_num, int32 random_seed, 40 int32 num_features, int32 num_features_to_pick, 41 std::vector<int32>* features); 42 43 } // namespace tensorforest 44 } // namespace tensorflow 45 46 #endif // TENSORFLOW_CONTRIB_TENSOR_FOREST_HYBRID_CORE_OPS_UTILS_H_ 47