Using the above example, if we want to know the two most likely products to be purchased by Customer no. 5, we would conclude that they are books and a DVD.

回到上述的例子，如果我们想要知道第5个顾客最有可能购买的产品，那么这次的结论是书和DVD。

youdao

To answer the question "What is Customer No. 5 most likely to buy?" based on the Nearest Neighbor algorithm we ran through above, the answer would be a book.

如果使用最近邻算法回答我们上面遇到的“第5个顾客最有可能购买什么产品”这一问题，答案将是一本书。

youdao

This is because the distance between customer No. 5 and customer No. 1 is less (far less, actually) than the distance between customer No. 5 and any other customer.

这是因为第5个顾客与第1个顾客之间的距离要比第5个顾客与其他任何顾客之间的距离都短(实际上是短很多)。

youdao

And, if the customer says no thanks, Buyback returns the device for free.

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