September 2024
Beginner to intermediate
364 pages
8h 27m
Korean
Content preview from 머신러닝 인터뷰 실무 가이드
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
233
CHAPTER 05
기술 인터뷰: 코딩
#
python
import numpy as np
#
add churn indicators
merged
_
df
['
churn
_
status
']
=
np
.
where
(
pd
.
to
_
datetime
('
2023
-
07
-
25
')
-
merged
_
df
['
login
_
time
']
>=
pd
.
Timedelta
(
days
=
30
),
1
,
0
)
#
merged
_
df
|
user
_
id
|
timestamp
|
login
_
time
|
time
_
between
|
churn
_
signup
_
and
_
status
_
latest
_
login
|
31876
|
2023
-
05
-
14 09
:
18
:
15
|
2023
-
06
-
20 09
:
03
:
30
|
36 days 23
:
45
:
15
|
1
|
59284
|
2023
-
05
-
13 15
:
12
:
45
|
2023
-
07
-
23 15
:
28
:
50
|
71 days 00
:
16
:
05
|
0
|
86729
|
2023
-
06
-
18 09
:
03
:
30
|
2023
-
06
-
21 10
:
10
:
25
|
3 days 01
:
06
:
55
|
1
이제 해당 데이터를 피처 테이블과 결합할 수 있습니다.
#
python
user
_
info
_
df
["
user
_
id
"]
=
pd
.
to
_
numeric
(
user
_
info
_
df
["
user
_
id
"])
features
_
df
=
user
_
info
_
df
.
merge
(
merged
_
df ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.