Number Anomaly Detector

• Author: Sebastian Garcia (eldraco@gmail.com, @eldracote)

An anomaly detector for numbers. You can give a file with one number per line and it will print the anomalies. You can also give numbers in the STDIN and it will print the anomalies every X amount of numbers.

Dependencies

Please install the following dependencies:

• pyod: PyOD is a comprehensive and scalable Python toolkit for detecting outlying objects in multivariate data.

pip install pyod

Usage

From a file

$ ./number_anomaly_detector.py -f test-numbers.txt
Simple Number Anomaly Detector. Version: 0.1
Author: Sebastian Garcia (eldraco@gmail.com)

Top anomalies
values    score
35345 3.129754
24562 1.766415
2 1.338806

From STDIN

$ cat test-numbers.txt | ./number_anomaly_detector.py
Simple Number Anomaly Detector. Version: 0.1
Author: Sebastian Garcia (eldraco@gmail.com)

Top anomalies
values    score
 35345 1.999886

Top anomalies
values    score
 35345 3.331550
     2 1.284752

Top anomalies
values    score
 35345 3.129754
 24562 1.766415
     2 1.338806

Performace

Using the PCA model, is capable of training and testing 1 million numbers in 0.38 seconds

Docker

To run the tool using Docker use our Docker Hub image:

docker run stratosphereips/number_anomaly_detector:latest number_anomaly_detector.py -f test-numbers.txt