Data Science

Showing 28-34 of 34 results
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3D Data Visualization With Open Source Tools: A Tutorial Using VTK

By Benjamin Hopfer

How do we understand and interpret the huge amounts of data coming out of simulations? How do we visualize potential gigabytes of datapoints in a large dataset? In this article I will give a quick introduction to VTK and its pipeline architecture, and go on to discuss a real-life visualization example.

12 minute readContinue Reading
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MetaDapper: Data Mapping and Conversion Made Easy With the Right Tools

By Richard Rozsa

Data conversion, translation, and mapping is by no means rocket science, but it is by all means tedious. This article introduces MetaDapper, a .NET library that strives to simplify, streamline, and automate the data conversion process to the greatest extent possible.

10 minute readContinue Reading
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A Guide to UTF-8 Encoding in PHP and MySQL

By Francisco Clariá

Once you step beyond the comfortable confines of English-only character sets, you quickly find yourself entangled in the wonderfully wacky world of UTF-8. Indeed, navigating through UTF-8 related issues can be a frustrating and hair-pulling experience. This post provides a concise cookbook for addressing these issues when working with PHP and MySQL in particular, based on practical experience and lessons learned.

10 minute readContinue Reading
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A Deep Learning Tutorial: From Perceptrons to Deep Networks

By Ivan Vasilev

The recent resurgence in Artificial Intelligence has been powered in no small part by a new trend in machine learning, known as "Deep Learning". In this article, I'll introduce you to the key concepts and algorithms behind Deep Learning, beginning with the simplest building block.

21 minute readContinue Reading
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Forex Algorithmic Trading: A Practical Tale for Engineers

By Rogelio Nicolas Mengual

The foreign exchange (forex) market is the most liquid market in the world. Learn from a software developer's firsthand experience creating forex algorithmic trading strategies—and more—in this trading tutorial.

9 minute readContinue Reading
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Growing Growth: Perform Your Own Cohort Analysis with This Open Source Code

By Alejandro Rigatuso

But this isn’t just another article about cohort analysis. If you already know the importance of the topic and want to skip the introduction, you can jump to the simulator, where you can either simulate startup growth based on retention, churn, and a number of other factors, or analyze your own PayPal logs with the code I’ve open sourced. If, however, you don’t realize that these are some of the most important metrics around–continue reading.

7 minute readContinue Reading
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How I Made a Fully Functional Arduino Weather Station

By Francisco Clariá

I live in Córdoba, Argentina, approximately 130 kilometers (~80 miles) away from the lake where I kitesurf. Thats roughly a two-hour drive, which I can deal with. But I can't deal with the fact that weather forecasts are inaccurate. And where I live, good wind conditions last just a couple of hours. The last thing you want to do is clear up your Monday schedule to go kitesurfing and find yourself cursing the gods on a windless lake after two hours of driving. I needed to know the wind conditions of my favorite kitesurfing spot—in real time. So I decided to build my own weather station.

10 minute readContinue Reading

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