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Brandon Brown

Personal blog · outlace.comaiprogramming

Brandon Brown writes Outlace, a personal blog at outlace.com about ai and programming. Since 2015, 4 different Hacker News readers have linked it 10 times, most often “Topological Data Analysis (2017)”. It is still writing: the last post was on 2025-02-05, and you can follow it by feed.

Visit the blog
10mentions?
4HN people?
2015–2024first – last linked?
Links on Hacker News per year · peak 2 in 2015

Too few sampled comments (2) to say how often HN recommends it.?

Why HN links it

Commenters link Brandon Brown's posts on category theory, topological data analysis and reinforcement learning, one with Python code to try. The links are given as follow-ups to other HN threads.

Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

I like to write about science and engineering. Launched 2 years ago.

Most-linked posts?

  1. Topological Data Analysis (2017)
    2 people · 5 mentions · first linked 2019-11-16

What Hacker News says?

  1. Fascinating. More on the topological data analysis: http://outlace.com/TDApart1.html

    Comment linking /TDApart1.html

    on “Category Theory Illustrated: Logic (2021)”
  2. Submitted Gradient Descent with Backpropagation as a story · 34 points

    HN discussion
  3. To those interested in machine learning, this idea naturally leads to “deep tensor networks” that are neural networks that can operate on and with high order tensors. I wrote a (non-rigorous) blog post about this: http://outlace.com/TensorNets1.html

    Comment linking /TensorNets1.html

    on “Matrices as Tensor Network Diagrams”
  4. Submitted On chain rule, computational graphs, and backpropagation as a story · 10 points

    HN discussion
  5. I wrote a series of blog posts about persistent homology and topological data analysis for absolute beginners as I was obsessed with it for some time: http://outlace.com/TDApart1.html

    Comment linking /TDApart1.html

    on “Computational Algebraic Topology, lecture notes [pdf]”
  6. Submitted An Accessible Intro to Topological Data Analysis as a story · 3 points

    HN discussion
  7. In case anyone is interested in delving deeper, I wrote a detailed series of posts on persistent homology including the fundamental math and getting a working python example: http://outlace.com/TDApart1.html

    Comment linking /TDApart1.html

    on “Homology”
  8. Submitted Topological Data Analysis (2017) as a story · 2 points

    HN discussion
  9. Another one, with Python code to play with: http://outlace.com/Reinforcement-Learning-Part-3/

    Comment linking /Reinforcement-Learning-Part-3/

    on “Deep Reinforcement Learning Explained”
  10. If you're interested in algebraic topology to do topological data analysis, I wrote a series of blog posts about it that I believe is quite accessible even to those with limited math backgrounds: http://outlace.com/TDApart1.html

    Comment linking /TDApart1.html

    on “Algebraic Topology for Data Scientists”

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