Dimensionality reduction applied to the customer space effectively groups similar customers into clusters; as we now describe, such clustering can also degrade recommendation quality.
向顾客空间应用维度降低技术，能有效地把相似顾客组合为群组，正如我们现在所说的，这样的聚类也会降低推荐的品质。
You describe it as "a stark portrait of where we are now".
你把它描述为“我们现在所处的情形的一幅鲜明写照”。
You describe it as "a stark portrait of where we are now".
你把它描述为“我们现在所处的情形的一幅鲜明写照”。
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