名词
中文翻译：损失函数
同义词：
['error function', 'cost function', 'penalty function']
例句：
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1. The loss function is used to measure the error between the predicted and actual values.
损失函数用于衡量预测值和实际值之间的误差。
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2. The optimization algorithm was designed to minimize the loss function.
优化算法被设计为最小化损失函数。
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3.The model's performance can be evaluated by comparing the loss function values.
模型的性能可以通过比较损失函数值来评估。