分享一个Data Scientist的面经攒RP。。

发信人: p0830 (AnnieJ), 信区: JobHunting
标  题: 分享一个Data Scientist的面经攒RP。。
发信站: BBS 未名空间站 (Tue Oct 28 18:37:11 2014, 美东)

NY的startup，问的都比较随意简单，今天去onsite了，大家就随便看看。。。
求过啊，，！

1. 我发现纽约的公司都喜欢考这道编程题么。。
given integer n, 写个函数如果是3的倍数输出fuzzy，如果是5的倍数输出buzzy，是
15的倍数输出fuzzybuzzy.

2. how do you build model? What will you think before build any models? Walk
me through the process you use.

3. How do you explain the difference between Bayesian inference and
regression to one who doesn't have any background?

4. How to handle collinearity?

5. In SQL. what's the difference between inner join, right join and left
join? Write your code.

6. In SQL, how to detect redundant queries?

7. Explain multilevel regression. How does it link to Bayesian inference?
Which do you prefer and why? （这个问题是以为我简历上有，做过项目）

8. How does your modeling work make a contribution to business?

9. Metrics you used to examine your model, your fitting results...ect...
asked a lot of metrics..

剩下的都是一些聊天，why company之类的。
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