绪论:初识机器学习

Machine Learning

  • Grew out of work in AI (grew out of:产生于)
  • New capability for computers

Examples

  • Database mining
    Large databases from growth of automation/web.

  • Application can’t program by hand.
    Autonomous helicopter,NLP,Computer Vision

  • Self-customizing programs

  • 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)

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转载自blog.csdn.net/weixin_42017042/article/details/86328571
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