I recently became interested in GeoHashing, and wanted to develop an understanding of the algorithm with the goal of implementing it myself. I was surprised to find it to be quite simple and intuitive. In what follows, I’ll demonstrate how to ge...

Bessel’s correction is the use of instead of in the sample variance formula where is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. Recall that bias is defined as: where re...

Bessel’s correction is the use of instead of in the sample variance formula where is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. Recall that bias is defined as: where r...

The Discrete Fourier Transform (DFT) turns a data vector into a sum of sine/cosine components. The DFT is a Fourier series on data instead of analytic functions. Why do we perform the DFT? Because the features typically of interest aren’t always...

Hyperparameter tuning with GPopt, based on Gaussian processes

Greetings, humanists, social and data scientists! Have you ever tried to load a large file in Python or R? Sometimes, when we have file sizes in the order of gigabytes, you may experience problems of performance with your program taking an unusual...

Subsampling continuous and discrete response variables in nnetsauce version 0.16.3

Imagine you are working on a dashboard, and you want to add this new type of visualization you saw in one of the blogs you follow, or perhaps your users showed you a visualization they liked and asked you to implement something similar. You roll up your sleeves and start ...

Virtual reality (VR) and augmented reality (AR) have come a long way in recent years, revolutionizing how people interact with digital environments. One of the most exciting developments in this field is the emergence of Neural radiance fields (NeRF). In this article, you will learn about NeRF and how it ...