请给推荐个iphone 5 的 screen protector吧？# Apple - 家有苹果
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What knowledge and skills are required and helpful for developing a
recommendation engine-- such as the recommendation engine of amazon.
data mining? coding? database? algorithm? what knowledge are required to
design an algorithm?
recommendation engine-- such as the recommendation engine of amazon.
data mining? coding? database? algorithm? what knowledge are required to
design an algorithm?
