名词
中文翻译：特征提取
同义词：
['feature selection', 'feature extraction', 'feature extraction technique']
例句：
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1. In machine learning, feature extraction is a critical step in developing models.
在机器学习中，特征提取是开发模型的关键步骤。
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2. The algorithm uses feature extraction to identify patterns in the data.
该算法使用特征提取来识别数据中的模式。
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3. Feature extraction techniques have greatly improved the accuracy of image recognition systems.
特征提取技术极大地提高了图像识别系统的准确性。