Machine Learning
- Grew out of work in AI (grew out of:产生于)
- New capability for computers
Examples
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Database mining
Large databases from growth of automation/web. -
Application can’t program by hand.
Autonomous helicopter,NLP,Computer Vision -
Self-customizing programs
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Understanding human learning(brain, real AI)
Machine learning algorithms
- Supervised learing(监督学习)
根据已有的数据集(数据集中已有标记即含有“正确答案”),来预测未知结果- regression problem(回归问题):预测连续值的输出
- classification problem(分类问题):预测离散值的输出
- Unsupervised learing(无监督学习)
将已有的数据集进行分类,数据集无任何标记。- clustering algorithms(聚类算法):给数据集分类
- Cocktail party problem(鸡尾酒会问题):分离音频
- Others:
Reinforcement learing(强化系统)
recommender systems(推荐系统)