Ruby metaprogramming, one of the most interesting aspects of Ruby, enables the programming language to achieve an extreme level of expressiveness. It is because of this very feature that many gems, such as RSpec and ActiveRecord, can work the way they do. In this article, Toptal…
2019 UPDATE: Since this post came out, I co-authored a book about it called Super Thinking: The Big Book of Mental Models.
In this post I’m going to tell you about batching as a technique to help avoid N+1 queries, existing battle-tested tools like Haskell Haxl…
In this post
Standard Deviation is one of the most underrated statistical tools out there. It’s an extremely useful metric that most people know how to calculate but very few know how to use effectively.
How and why do different Deep Learning models work? We provide an intuitive explanation for 3 very popular DL models: Resnet, Inception, and Xception.
In this post, we will try to gain a high-level understanding of how SVMs work. I’ll focus on developing intuition rather than rigor. What that essentially means is we will skip as much of the math as possible and develop a strong intuition of the working principle.
This article will review the basics of the decimation-in-time FFT algorithms.
The Long Short-Term Memory recurrent neural network was developed for sequence prediction. In addition to sequence prediction problems. LSTMs can also be used as a generative model In this post, you will discover how LSTMs can be used as generative models. After completing this…
If you have tried to communicate research results and data visualizations using R, there is a good chance you will have come across one of its great limitations. R is painful when you need to...
In this tutorial series we'll dive right into using React as we build a fully working app to display a gallery of movies. Learning how to build an app from scratch is a great opportunity to...
This is a simple introduction to Vue.js, starting with a simple setup
This is a simple introduction to Vue.js, this time with simple components
Numba is an open-source Python compiler from Anaconda that can compile Python code for high-performance execution on CUDA-capable GPUs or multicore CPUs.
Tools for multi-processing on unix
We will review another fascinating approach that marries heuristic and probabilistic methods. We will link marketing channels with a probability of a customer passing through each step of a Sales Funnel
In this tutorial, I will be focusing on arguments (*args) and keyword arguments (*kwargs) in Python. I will teach you what args and kwargs are and, most importantly, how to use them—that is...
1.3M subscribers in the Python community. The official Python community for Reddit! Stay up to date with the latest news, packages, and meta…
Machine learning algorithms aren’t difficult to grasp if you understand the basic concepts. Here, a SAS data scientist describes the foundations for some of today’s popular algorithms.
This article was written by Sunil Ray. Sunil is a Business Analytics and Intelligence professional with deep experience. Introduction – the difference in mindset I started my career as a MIS professional and then made my way into Business Intelligence (BI) followed by Business…
A tutorial on organizing python code into reusable units, building packages, and using conda. - vestuto/reusable-python
Release 1.4 of the magick package introduces a new feature called image convolution that was requested by Thomas L. Pedersen. In this post we explain what this is all about. Kernel Matrix The new image_convolve() function applies a kernel over the image. Kernel convolution means…
Run PyTorch locally or get started quickly with one of the supported cloud platforms
Sentiment Analysis is one of the most obvious things Data Analysts with unlabelled Text data (with no score or no rating) end up doing in an attempt to extract some insights out of it and the same Sentiment analysis is also one of the potential research areas for any NLP…
In this tutorial we share with you a collection of tips that will help you manage your git repositories.
‘ImageMagick’ is one of the famous open source libraries available for editing and manipulating Images of different types (Raster & Vector Images). magick is an R-package binding to ‘ImageMagick’ for Advanced Image-Processing in R, authored by Jeroen Ooms. magick supports many…
Alex Bridgland blog/posts.
When deciding whether to track users on the server or on the client, there are many gotchas and factors to consider. Here is a short guide with pros and cons of each.
Data science, also known as data-driven decision, is an interdisciplinery field about scientific methods, process and systems to extract knowledge from data in various forms, and take descision based on this knowledge. A data scientist should not only be evaluated only on…
Should we generalize or specialize? This article explores how Shakespeare and Da Vinci excelled by branching out from their core competencies.
Ella Fitzgerald was a big star on the cusp of something bigger when she began an engagement at Zardi’s Jazzland, in the heart of Hollywood, during the…
A look ahead at the 18th annual Latin Grammy Awards.
Lately I’ve been thinking a lot about the connection between prediction models and the decisions that they influence. There is a lot of theory around this, but communicating how the various pieces all fit together with the folks who will use and be impacted by these decisions…
A tutorial for using ggmap to plot basic maps in R, by using images from Google Maps as a ggplot layer.
Stay up-to-date on the latest data science and AI news in the worlds of artificial intelligence, machine learning, deep learning, implementation, and more.
Hundreds of startups are pitching themselves as "platforms". While platforms make compelling businesses, they're nearly impossible to create from scratch.
We have been writing a lot on higher-order data transforms lately: Coordinatized Data: A Fluid Data Specification Data Wrangling at Scale Fluid Data Big Data Transforms. What I want to do now is "write a bit more, so I finally feel I have been concise." The cdata R package…
Which layout of an advertisement leads to more clicks? Would a different color or position of the purchase button lead to a higher conversion rate? Does a special offer really attract more customers – and which of two phrasings would be better? For a long time, people have…
Short form: Win-Vector LLC’s Dr. Nina Zumel has a three part series on Principal Components Regression that we think is well worth your time. Part 1: the proper preparation of data (including…
There’s an illusion that if you want something enough, even something as fantastical as avoiding death, you might just get it.
An overview of my personal infrastructure and services I host.
Here’s a look at some lesser-known Ruby methods that solve specific types of problems very well.
In Wonder Valley, the silence makes its own kind of noise. And Twentynine Palms makes its own kind of music.
When the U.S. media began reporting on the phenomenon of “forest bathing” as a therapy for mental and physical health, the online commentariat—as it will—mocked the concept relentlessly as yet another pretentious, bourgeois repackaging of something thoroughly mundane.
The Internet has removed friction: that means a whole new set of possibilities; it doesn’t mean they are all good.