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DataScience

Roadmap

Statistics

Machine Learning

Unsupervised

  1. PCA
  2. t-SNE

Decision Science

How to choose?

You went to a mobile shop and the sales person showed you multiple options. How will you decide on which phone to buy?

  1. Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS)

How it works?: Chosen alternative should have the shortest geometric distance from the best solution and largest distance from the worst solution.

General Blogs

  1. Four paradigms of Science

Data Science is the fourth paradigm of Science. It is akin to Galileo taking observations through a telescope, but today’s Galileo has a telescope that can generate hundreds of GBs of data per day. The problem is that there are not enough Galileos to interpret this data and create more theories.

  1. Bayesian Thinking for a Better world

We all start with problematic opinions - be it about gender, castes, religions etc. But when the world shows you counter evidence, are you updating your opinions? If not, you are not thinking well. Let some high school math show you why and how to update opinions.

  1. Why doctors need Bayes?

How doctors can end up overtreating when they lack knowledge of Bayes' theorem.

  1. Why anecdotal evidence is BS?

People give you anecdotal evidence to justify all sorts of non-sense. You want to tell them that anecdotal evidence is useless. But their stories are very strong and emotional. Hence, let's use same math to call out anecdotal evidence. Don't worry, we just use high school math for this.

Technical Blogs

  1. Confirmatory Factor Analysis

Example projects

These are not my main data projects, which can be found here: Link.

These are example projects that helped me learn Data Science concepts.

  1. Data Projects on Corona Virus

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