Pixnet Hackathon 2015

1. Spam User Detection
Andy, Len, Petertc

2. Agenda
 Machine Learning Tools
 AWS Machine Learning
 Azure Machine Learning
 Spam Detection Algorithm
 Detect spam user by time frequency.
 Detect spam user by article correlation.

3. Machine Learning Tools

4. AWS Machine Learning

5. AWS Machine Learning

6. Azure Machine Learning
 https://manage.windowsazure.com

7. Spam Detection Algorithm

8. Detect spam user by time frequency.

9. Detect spam user by time frequency.
500,000 actions

10. Detect spam user by time frequency.
1,000,000 actions
500,000 actions

11. Detect spam user by time frequency.
1,000,000 actions
3,000,000 actions

12. Detect spam user by article correlation.
Spam User
Spam User
Spam User
High correlation
High correlation
High correlation

13. Detect spam user by article correlation.
Title_count
Article_count
High correlation

14. Thanks!