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KNN 采用指数化的员额类别
原文:KNN Across categories in postgis using indexing
原文:KNN Across categories in postgis using indexing
我有不同类型的数据集。 对于数据集的每一点,我想在每个类别中找到最接近点。 我可以做到这一点,但计算时间非常长,我是......。
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