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最近正在准备Facebook DS的面试，把自己收集到的觉得地里和Glassdoor上有用的题整理了一下，供大家参考. .и
有最近在面试的同学一起加油呀
顺便求大米求大米，让我也能看看隐藏贴.1point3acres
HR篇. Χ
1）毕业时间
2）目前有没有offer
3）选择下一轮面试要用的coding language
4）上一份实习做了哪些工作
5）上一份实习中一个具体的项目，描述完会问你的impact主要体现在哪里
6）FB Friend发现某一天Friend Request的发送率下降10%，请分析两个最主要的原因
7）SQL：ORDER BY ASC, NULL+1=NULL, HAVING, JOIN ON. Waral dи,
1: tell me about yourself and why DS?
2: tell me about your Data Science experience/project, more analytics side?
3: If 10% decreasing in the post(FB, Instagram), as DS, what would you do?
1) how would you improve notifications?
2) how would you get Facebook users to download Instagram?
Tech篇
-baidu 1point3acres
Technical phone screen with Facebook data scientist. Three parts: (1) medium-hard SQL questions (no query execution, just write out query on shared text file) (2) metric ideation for measuring success of a new feature on Facebook, and then how to debug if this metric goes down (my answer: make sure this isn't an instrumentation error, then group by geo, user age, seasonality, if a power user, etc.) (3) talk through setting up an experiment for the new feature
. .и
.google иBayes' theorem, Power of tests, Type 1 error/type-2 error, and imbalanced classification.
. 1point3acres.com
Given a database of posts and a database of comments on those posts, how do you determine how many conversations are happening in the comments per post on average.
Product篇. Waral dи,
how would you develop <fill in any FB product>, metrics, experimentation basics . 1point 3acres
.1point3acres
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