There are multple-programming-languages-projects inside this project, so CI(Travis) will use makefile rather than .travis.yml to execute all the tasks.
You can check makefile for more details.
You could find python implementations( tutorial language is R ) for different algorithms in Data-Mining course.
Data Visualization with Tableau
Random Forest Tree && Decision Tree
Inverted Index with full marks for implementing a 100+ lines nlp-based IMBD search engine with web crawlers from scratch
Prediction Algorithm including Linear Regression && SVM && NN && Time Series
