Whether your goal is to write data intensive software, use existing software to analyze large, high dimensional data sets, or to better understand and interact with the experts who do these things, you will need a strong understanding of the structure of data and how one can try to understand it. On this blog, I plan to explore and explain the basic ideas that underlie modern data analysis from a very intuitive and minimally technical perspective: by thinking of data sets as geometric objects.

When I began learning about machine learning and data mining, I found that the intuition I had formed while studying geometry was extremely valuable in understanding the basic concepts and algorithms. But in many of the resources I’ve seen, this relatively simple geometry is hidden behind enough equations and algorithms to intimidate all but the most technically inclined readers. My goal in writing this blog is to put the geometry first, and show that anyone can gain an intuitive understanding of modern data analysis.

For updates on new posts, you can follow me on Twitter (@jejomath) or sign up for updates through WordPress.

About the Author: Jesse Johnson is a former math professor, with a research background in low-dimensional geometry/topology, who is now a software engineer at Google in Cambridge, MA.

11 Responses to About

  1. karthik says:

    I have been studying statistics for a long time and still learning / trying to understand things – as i frequently forget them – the explanations are simple and brilliant. thank you for sharing your thoughts!

  2. Great blog, great content and very good explanations. Thanks!

  3. Jennifer Foss says:


    I just discovered your blog while doing a search to learn more about K modes.

    Now I can’t wait to read all the posts.

    I’m a former mathematical neurobiologist turned quantitative analyst. I’m always looking for stuffily this, as my data analysis knowledge is mainly a self-taught hodgepodge.


  4. Dear Jesse, I tried to contact you via email on your ATmath.okstate.edu email. Is the address still up to date? All the best, Benedikt

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