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Notes on things I built, broke and measured.

  1. The upgrade that made my search worse

    I measured keyword, semantic and hybrid product search on 480 human-labelled queries. The fanciest model lost.

    3 min read · #search #evaluation #embeddings

  2. Teaching a rabbit to play, with a neural network written from scratch

    A Q-table learned my browser game in seconds, then hit a wall at 18 points. A from-scratch Deep Q-Network got to 73.

    4 min read · #reinforcement-learning #neural-networks #javascript

  3. I found seven bugs in my own thesis

    Rebuilding my 2019 University of Ottawa research code turned up a one-line bug that had silently erased my best result.

    4 min read · #machine-learning #debugging #evaluation