新鲜出炉的google DS 电面面经

先介绍自己现在正在做的project,解决什么问题,建了什么model?怎么approach的?接下来4个问题。

1.How to verify whether x, y, z follow multivariate normal distributionwith known population mean and covariance?

How to check whether it’s randomly sampled?

2.Ads 2nd price option—winner paid second price. You and I arebidding.

My bidding price is unknown to you, but your bidding price and outcomeis available to you. Also know that my bidding price follows exponential distributionwith parameter lambda, ask how to estimate lambda in my bidding price.

3.N people has coordinate (xi, yi), they want to meet together at oneplace. Q: What is the meeting place?

4.Y is count, positive data, compare using linear regression model andregression with log link.

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谢谢楼主分享!

谷歌了一下, 发现那个bidding problem 好像是有关bayesian Nash equilibrium action question…

请问楼主,第二题是多次出价并知道每一次是否比对方高吗?谢谢!

求问 为啥我查的他家的DS职位都是要Phd啊

LZ的题真的是史诗级的难度。。。能请问下LZ的思路吗?

感谢楼主分享!!