demi-closed mapping

例句：

1. 1. In the context of machine learning, a demi-closed mapping is a technique used to handle missing values in data.
   在机器学习的背景下，半开映射是一种用于处理数据中缺失值的技术。
2. 2.The researchers proposed a new algorithm for demi-closed mapping, which significantly improved the accuracy of their model.
   研究人员提出了一种新的算法，用于半开映射，这显著提高了他们模型的准确性。
3. 3. The demi-closed mapping approach has been widely adopted in various applications, such as image recognition and natural language processing.
   半开映射方法已被广泛应用于各种应用中，如图像识别和自然语言处理。