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it168
6 年
在Python中使用PCA和t-SNE可视化高维数据集 - IT168
记住这些数据,接下来,我们在将数据输入t-SNE算法之前再次使用PCA减少维数。 首先创建一个新的PCA算法生成的包含50个维度的数据集,然后使用这个数据集执行t-SNE: 令人惊讶的是,前50个组件大致占据了数据总变化的85%左右。
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