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第495行： − 半监督学习介于无监督式学习（没有任何标记的训练数据）和有监督学习（完全标记的训练数据）之间。有些训练样本缺少训练标签，但许多机器学习研究人员发现，如果将未标记的数据与少量标记的数据结合使用，可以大大提高学习的准确性。+ 第503行：
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→半监督学习 Semi-supervised learning
Semi-supervised learning falls between unsupervised learning (without any labeled training data) and supervised learning (with completely labeled training data). Some of the training examples are missing training labels, yet many machine-learning researchers have found that unlabeled data, when used in conjunction with a small amount of labeled data, can produce a considerable improvement in learning accuracy.
Semi-supervised learning falls between unsupervised learning (without any labeled training data) and supervised learning (with completely labeled training data). Some of the training examples are missing training labels, yet many machine-learning researchers have found that unlabeled data, when used in conjunction with a small amount of labeled data, can produce a considerable improvement in learning accuracy.
'''半监督学习 Semi-supervised Learning'''介于无监督式学习（没有任何标记的训练数据）和有监督学习（完全标记的训练数据）之间。有些训练样本缺少训练标签，但许多机器学习研究人员发现，如果将未标记的数据与少量标记的数据结合使用，可以大大提高学习的准确性。
In weakly supervised learning, the training labels are noisy, limited, or imprecise; however, these labels are often cheaper to obtain, resulting in larger effective training sets.
In weakly supervised learning, the training labels are noisy, limited, or imprecise; however, these labels are often cheaper to obtain, resulting in larger effective training sets.
在'''弱监督学习 Weak supervision'''中，训练标签是有噪声的、有限的或不精确的; 然而，这些标签使用起来往往更加“实惠”——这种数据更容易得到、更容易拥有更大的有效训练集。
在'''弱监督学习 Weak Supervision'''中，训练标签是有噪声的、有限的或不精确的; 然而，这些标签使用起来往往更加“实惠”——这种数据更容易得到、更容易拥有更大的有效训练集。
==== 强化学习 Reinforcement learning ====
==== 强化学习 Reinforcement learning ====