FB DS 电面面经

今天刚面完的,趁还记得住,赶紧来分享一下,求bless pass!都是地里的原题

SQL: SPAM 原题 2 tables
1)how many posts were reported yesterday for each report reason?
2) what percent of daily content of users view on FB is actually spam?

Product: if launch a spam filter, how to test if it works? what metrics you will use? what experiment you conduct? The steps for AB test? how to select sample?
if spam filter worked but revenue down, what will you do?

恭喜楼主压倒题~能不能分享一下product你大概是怎么回答的呢?感谢感谢!!祝马上拿到onsite!!

感谢楼主,手动,请问楼主sql考到用户自定义变量了嘛

请问什么是spam啊?谢谢!祝楼主一切顺利!

请忽略·。。。。。。。