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Tag: Data Science

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31 posts with this tag

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Optimising the Minkowski distance, part 3: removing redundant calculations

In our previous blog post we discussed how to implement the Minkowski distance formula in a couple of functions which relied heavily on for loops. On our full data, this lead to a processing time of over an hour. With some simple tricks in NumPy …

Posted on July 6, 2022 • 8 minutes read Read on
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Optimising the Minkowski distance, part 2: broadcasting

In the last blog post, we managed to shave a bit of time off our calculation of the Minkowski distance by using vector subtraction. Instead of calculating the difference between each pair of vectors elementwise using a loop, we were able to take …

Posted on June 29, 2022 • 9 minutes read Read on
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Optimising the Minkowski distance, part 1: vector subtraction

In the last blog post, we discussed how to calculate the Manhattan and Euclidean distances from first principles. However, in that post, we did a very manual implementation for a single pair of vectors, which would not generalise well to more than …

Posted on June 14, 2022 • 8 minutes read Read on
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Just enough linear algebra to understand the Minkowski distance

If you had to invent a machine learning algorithm from scratch, what would be some of the ways you'd find patterns in your data? One idea that you might have come up with is to assume that data points that are "close" to each other are similar, and …

Posted on June 7, 2022 • 10 minutes read Read on
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Exploring decision tree modelling with DataSpell

During my years of working as a data scientist, I've tried quite a number of IDEs. When I was primarily working with R, RStudio was a very nice environment to work with, but when I moved to working in Python I hadn't been able to find anything close. …

Posted on December 28, 2021 • 9 minutes read Read on
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