How do you take millions of users with 100s of transactions each, amongst 10ks of products and group the users together in meaningful segments?

How do you take millions of users with 100s of transactions each, amongst 10ks of products and group the users together in meaningful segments?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

分类: problem-solving

标签: Apple Data Science

目标岗位: Data Scientist

目标公司: Apple

参考答案摘要

回答要点：Build user embeddings/features (category spend, frequency, recency), reduce dimension (PCA/UMAP), cluster (k-means/GMM/hierarchical) at scale with sampling/mini-batch; validate with business inte...

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