Blog
I tend to blog about technical topics, including interesting mathematics and cool applications of Python.
All my posts are listed at Blog. I mark my favorite posts with and aggregate them at Favorite Posts. Posts are organized by categories or tags, with a summary at Tags.
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Better and faster hyperparameter optimization with Dask
Sep 27, 2019 in distributed machine-learning dask
Dask’s machine learning package, Dask-ML now implements Hyperband, an advanced “hyperparameter optimization” algorithm that performs rather well. This post will
- describe “hyperparameter optimization”, a common problem in machine learning
- describe Hyperband’s benefits and why it works
- show how to use Hyperband via example alongside performance comparisons
In this post, I’ll walk through a practical example and highlight key portions of the paper “Better and faster hyperparameter optimization with Dask”, which is also summarized in a ~25 minute SciPy 2019 talk.
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Launching tasks from workers with Dask
Jan 4, 2018 in distributed systems dask
Dask recently surprised me with it’s flexibility in a recent use case, even more than the basic use detailed in a previous post. I’ll walk through my use case and the interesting problem it highlights. I’ll show a toy solution and point to the relevant parts of the Dask documentation.
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PyTorch: fast and simple
Sep 7, 2017 in optimization systems performance library
I recently came across PyTorch, a new technology prime for optimization and machine learning. The docs make it look attractive, so immediately I wondered “how does it compare with NumPy?”
Turns out it’s a pretty nice framework that’s fast and straightforward to use. I’ll detail the speed before talking about ease-of-use.
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Holoviews interactive visualization
Jul 22, 2017 in data-visualization
I often want to provide some simple interactive visualizations for this blog. I like to include visualization to give some sense of how the data change as various parameters are changed. Examples can be found in Finding sparse solutions to linear systems, Least squares and regularization, and Computer color is only kinda broken.
I have discovered a new tool, Holoviews to create these widgets. I want to create these interactive widgets for my blog, meaning I want to embed these in a static HTML page. Previously, I used Jake Vanderplas’s ipywidgets-static but in this post I’ll walk through creating a widget.
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