xcorr: AI & neuro

xcorr: AI & neuro

by Patrick Mineault

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  • Aboutxcorr is the blog of Patrick J. Mineault.
  • Dynamic scientific visualizations in the browser for Python users
    Dynamic scientific visualizations in the browser for Python users

    As a scientist, interacting with data allows you to gain new insight into the phenomena you’re studying. If you read the New York Times, the D3 docs or you browse distill, you’ll see impressive browser-based visualizations – interactive storytelling that not only accurately represent data but bring your attention to surprising aspects of it. Making…

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    June 2, 2021
  • Accelerating progress in brain recording tech
    Accelerating progress in brain recording tech

    In Stevenson and Kording (2011), the authors estimated that every 7.4 years, the number of neurons we can record with doubles. Think of it as Moore’s law for brain recordings. Since then, Stevenson has updated the estimate, which now stands at 6 years. Could it be that progress itself is accelerating? Matteo Carandini raised a…

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    April 27, 2021
  • Is early vision like a convolutional neural net?
    Is early vision like a convolutional neural net?

    Early convolutional neural net (CNNs) architectures like the Neocognitron, LeNet and HMAX were inspired by the brain. But how much like the brain are modern CNNs? I made a pretty strong claim on Twitter that the early visual processing is nothing like a CNN: In typical Twitter fashion, my statement was a little over-the-top, and…

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    April 16, 2021
  • Building Neuromatch Academy
    Building Neuromatch Academy

    Neuromatch Academy 2020 is a three-week online summer school in computational neuroscience that took place in July of 2020. We created interactive notebooks covering all aspects of computational neuroscience – from signals and models of spikes to machine learning and behaviour. We hired close to 200 TAs to teach this material to 1,700 students from…

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    March 25, 2021
  • Scraping webpages with developer tools and Selenium
    Scraping webpages with developer tools and Selenium

    There’s a lot of interesting statistics you can do by scraping websites, whether it’s reading tables from Wikipedia, grabbing and aggregating climate change tables from government websites, or quantifying the exponential growth of covid-19 articles on Medium. Many of these pages will have easy-to-use methods to download the data in a develop-friendly format, for example…

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    April 2, 2020
  • Reverse correlation: linearizing black-box functions
    Reverse correlation: linearizing black-box functions

    Reverse correlation is a tried-and-tested nonlinear systems identification method to understand biological neurons. The idea is to open the black box that is a biological neuron by using random stimuli to probe how the neuron responds. We present a series of random stimuli to a sensory neuron. By averaging those that generated a response, we…

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    March 27, 2020
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