Hippocampus's Garden

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    Welcome to Hippocampus's Garden, a Shion Honda's blog. I regularly write about machine learning, statistics, programming, and my hobbies.
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    Stats with Python: Multiple Linear Regression

    March 31, 2021  |  3 min read

    This post steps forward to multiple linear regression. The method of least squares is revisited --with linear algebra.

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    Stats with Python: Simple Linear Regression

    March 22, 2021  |  5 min read

    This post summarizes the basics of simple linear regression --method of least squares and coefficient of determination.

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    Stats with Python: Sample Correlation Coefficient is Biased

    February 24, 2021  |  6 min read

    Is the sample correlation coefficient an unbiased estimator? No! This post visualizes how large its bias is and shows how to fix it.

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    Ready Steady GO: Dispatcher-Worker with errgroup

    February 14, 2021  |  2 min read

    A golang implementation of dispatcher-worker pattern with errgroup. It immediately cancels the other jobs when an error occurs in any goroutine.

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    Stats with Python: Rank Correlation

    February 06, 2021  |  8 min read

    The correlation coefficient is a familiar statistic, but there are several variations whose differences should be noted. This post recaps the definitions of these common measures.

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    Stats with Python: Finite Population Correction

    January 29, 2021  |  6 min read

    When you sample from a finite population without replacement, beware the finite population correction. The samples are not independent of each other.

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    Stats with Python: Unbiased Variance

    January 17, 2021  |  6 min read

    What is unbiased sample variance? Why divide by n-1? With a little programming with Python, it's easier to understand.

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    Creating a Face Swapping Model in 10 Minutes

    January 13, 2021  |  3 min read

    Let's re-inplement face swapping in 10 minutes! This post shows a naive solution using a pre-trained CNN and OpenCV.

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