8 Most Popular Java Web Crawling & Scraping Libraries
Introduction : Web scraping or crawling is the process of extracting data from any website. The data does not necessarily have to be in the form of text, it could be imag...
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Should CEOs Learn To Code? Yes!
What makes a great CEO? First of all, the answer to that question depends on who raises it: An investor will likely come up with a different answer than an employee. What...
Tutorial: Statistical Tests of Hypothesis
This article is a solid introduction to statistical testing, for beginners, as well as a reference for practitioners. It includes numerous examples as well as illustratio...
And Monty Hall Went Bayesian…
In practice, the Data Scientist wants to know which formula they will write in their Excel sheet when they enter all the data available into it: Bayes’ or usual? The an...
Wheel Of Fortune – Bayesian Inference
PREFACE Previously, I tackled the Gambler’s Ruin problem using conditional probability and difference equations as well as visualising the simulations of the proble...
5 Minute Analysis: Simplifying Iowa Liquor Sales
In this 5 Minute Analysis we’ll preprocess, map, and explore complicated sales data for liquor stores in Iowa. Then we’ll extract the relevant latitude and longit...
Linear regression in Python: Using numpy, scipy, and statsmodels
The original article is no longer available. Similar (and more comprehensive) material is available below. Example of underfitted, well-fitted and overfitted models Con...
Common Errors in Machine Learning due to Poor Statistics Knowledge
Probably the worst error is thinking there is a correlation when that correlation is purely artificial. Take a data set with 100,000 variables, say with 10 observations. ...
Simple Trick to Normalize Correlations, R-squared, and so on
Many statistics, such as correlations or R-squared, depend on the sample size, making it difficult to compare values computed on two data sets of different sizes. Here, w...
Build vs. Buy: The Conundrum Facing the Commercial Insurance Industry as It Embraces an AI-Based Future
Artificial intelligence (AI) seemingly has been discussed everywhere over the last few years, and now it’s made its way into the commercial insurance industry. Organiza...