有人面过Godday的DS职位吗，求面经 - 未名空间MITBBS历史存档

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有人面过Godday的DS职位吗，求面经

有人面过Godday的DS职位吗，求面经# DataSciences - 数据科学

i*s2015-09-25 07:09

1 楼

鲨鱼是海洋中最令人恐惧的掠食者，它们用像鞭子一样的尾巴和血盆大口威吓人类和其
他鱼类。然而这头蓝鲨一点也不吓人，看上去反而很像一只讨人喜欢的可爱卡通动物。
撒娇的眼神：生活在葡萄牙的大西洋水域的这头蓝鲨看起来很不真实，因为它竟乖乖地
跟在一位潜水员身后。
勇敢的瑞士摄影师弗兰科-班菲在葡萄牙亚西部的大西洋亚述尔群岛的皮科岛附近水域
拍摄了这些令人惊叹的照片。这头鲨鱼撒娇的眼神和光滑、圆润的身体，让它看上去非
常可爱，那位在鲨鱼身边游来游去，帮助班菲拍摄这种动物温顺可爱的一面的潜水员会
有更真实的体验。

c*32015-09-25 07:09

2 楼

如题，职位是做NLP和domain search的。多谢！

l*e2015-09-25 07:09

3 楼

第一张最卡通。

c*32015-09-25 07:09

4 楼

刚面完, 问题如下
1. A bag contains 40 balls, each of which is black or gold. A person reaches
into the bag and randomly removes two balls. Each ball in the bag is
equally likely to be removed. If the probability that two gold balls are
removed is 5/12, how many of the 40 balls are gold?
n*(n-1)/40*39 = 5/12， n = 26
2. Player A and Player B will play 6 games of table tennis. Each is equally
likely to win any given game.
The probability that each of them will win 3 games out of 6 is 5/16.
What is the probability that Player A will win more games than player B?
p(A>B) = p(A=4, B=2) + p(A=5, B=1) + P(A=6, B=0) = C(6, 4) * (1/2) ^ 6 + C(6
, 5) * (1/2) ^ 6 + C(6, 6) * (1/2) ^6 = 11/32
3. sentence fragments english words, 7 - 12 words long, build features and
model to determine if the sentence has significant meaning?
examples:
i am a goat
game no note have
the the the the

【在 c***3 的大作中提到】

: 如题，职位是做NLP和domain search的。多谢！

i*s2015-09-25 07:09

5 楼

实际上只有第一张有点卡通，原新闻标题党了。

【在 l********e 的大作中提到】

: 第一张最卡通。

l*n2015-09-25 07:09

6 楼

2.(1-5/16)/2，对称的

reaches
equally

【在 c***3 的大作中提到】

: 刚面完, 问题如下
: 1. A bag contains 40 balls, each of which is black or gold. A person reaches
: into the bag and randomly removes two balls. Each ball in the bag is
: equally likely to be removed. If the probability that two gold balls are
: removed is 5/12, how many of the 40 balls are gold?
: n*(n-1)/40*39 = 5/12， n = 26
: 2. Player A and Player B will play 6 games of table tennis. Each is equally
: likely to win any given game.
: The probability that each of them will win 3 games out of 6 is 5/16.
: What is the probability that Player A will win more games than player B?