Previously known as Big Data University, Cognitive Class, an IBM community initiative, provides about 30 courses on data science, machine learning, and all things big data.
The first course I completed here was on machine learning. More specifically, it was Machine Learning with Python. It took about a month to go through the lessons, quizzes and the final exam. And I got my completion certificate at the end of March earlier this year.
The course is broken down into 5 modules and some of the concepts that are taught include:
- machine learning vs. statistical modeling
- supervised learning: KNN, decision trees, random forests, regression, model evaluation
- unsupervised learning: K means, hierarchical clustering, single linkage clustering, density based clustering
- dimensionality reduction and collaborative filtering
What I particularly enjoyed while going through the course were the interactive labs (on the website), where you get hands-on practice with respect to the concepts you were being taught in the module. This helps a lot as it prepares you for the weekly quizze and for the final exam.
A very strong point of the platform:
"Our content is free, access to tool sets used within the courses is free, and we have designed our courses to be accessed at your pace based on your priorities." [source]
Even though they don't offer accreditation, I applaud their initiative:
"At Cognitive Class, we award IBM recognized IBM Open Digital Badges that can be displayed on your LinkedIn profile, your site, other social media sites, or even in your email signature." [source]
I'm currently working through a tensorflow course (very slowly). To explore the list of courses, go here. To take the course on machine learning with Python, go here.
Never stop learning and practicing!
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Cristi Vlad, Self-Experimenter and Author