Brief introduction
to
machine learning
"... the field of study that gives computers the ability to learn without being explicitly programmed."
Arthur Samuel
AI
ML
Deep learning
Anomaly detection
Recommendation engines
Image recognition
Natural language processing (NLP)
Named entity recognition
supervised learning
classification
regression
unsupervised learning
m^2
$$$
$$
$
linear regression
gradient descend
Detecting fake
page...
incorrect address
30%
10%
13.33%
If the has incorrect address, the probability of it's being fake is
Naive Bayes algorithm
| age | gender | app |
|---|---|---|
| 15 | F | |
| 25 | F | |
| 32 | M | |
| 40 | F | |
| 12 | M | |
| 14 | M |
| age | gender | app |
|---|---|---|
| 15 | F | |
| 25 | F | |
| 32 | M | |
| 40 | F | |
| 12 | M | |
| 14 | M |
| age | gender | app |
|---|---|---|
| 15 | F | |
| 25 | F | |
| 32 | M | |
| 40 | F | |
| 12 | M | |
| 14 | M |
age
<20
>=20
| age | gender | app |
|---|---|---|
| 25 | F | |
| 32 | M | |
| 40 | F | |
age
gender
<20
>=20
male
female
decision tree
errors: 30
errors: 15
errors: 10
errors: 3
logistic regression
Support Vector Machine
Kernel Trick
https://www.youtube.com/watch?v=IpGxLWOIZy4
https://medium.com/towards-data-science/machine-learning-brief-introduction-51e5d0441d9a
https://docs.google.com/spreadsheets/d/13R4Tg-0qRjgjirCc33Z_er_EKPGFNKri4bAlOItIpQM/edit#gid=0
resources:
Q&A
