| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_LEARNING_LEARNER_H_ |
| #define MEDIA_LEARNING_LEARNER_H_ |
| |
| #include "base/values.h" |
| #include "media/base/media_export.h" |
| #include "media/learning/instance.h" |
| |
| namespace media { |
| namespace learning { |
| |
| // Base class for a thing that takes examples of the form {features, target}, |
| // and trains a model to predict the target given the features. The target may |
| // be either nominal (classification) or numeric (regression), though this must |
| // be chosen in advance when creating the learner via LearnerFactory. |
| class MEDIA_EXPORT Learner { |
| public: |
| virtual ~Learner() = default; |
| |
| // Tell the learner that |instance| has been observed with the target value |
| // |target| during training. |
| virtual void AddExample(const Instance& instance, |
| const TargetValue& target) = 0; |
| }; |
| |
| } // namespace learning |
| } // namespace media |
| |
| #endif // MEDIA_LEARNING_LEARNER_H_ |