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Arthur Charpentier01/29/13
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Regression Tree Using Gini’s Index

In order to illustrate the construction of regression tree (using the CART methodology), consider the following simulated dataset...

Giuseppe Vettigli01/29/13
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Understanding Bloom Filter

A Bloom Filter is a data structure designed to tell you, rapidly and memory-efficiently, whether an element is present in a set.

Alex Holmes01/29/13
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Executing Variables that Contain Shell Operators

Here’s a quick example of an echo utility which outputs two lines, and a pipe operator which redirects that output to a grep utility which performs a simple filter to only include lines that contain the word “cat.”

Col Wilson01/29/13
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Install Stackless Python on Ubuntu

I'm just about to write a couple of posts on Stackless Python and theNagare Micro Framework which runs on it. So I've been installing Stackless on my Ubuntu 12.04. Here are some nice copy and paste instructions if you want to play along.

Pascal Alma01/29/13
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Mule ESB and the NoSuchMethodError: org.mule.util.ClassUtils.getClass exception

Currently I am adding some SAML related functionality to a Mule 3 implementation of one of our clients. To work with the SAML objects I make use of the OpenSAML library that is provided here as open source.

Dan Haywood01/29/13
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Apache Isis now has Shiro Integration for Security

Hot on the heels of Isis’ first release as an Apache top-level project, we’ve now released a new security component that integrates with Apache Shiro.

Jessica Thornsby01/29/13
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Apache Bloodhound 0.4 Proj Managment Tool Released

The Apache Bloodhound team has just announced their first release of 2013. Bloodhound (Incubating) is a software collaboration tool that builds on the proven project management and issue tracking system of Trac.

Mitch Pronschinske01/29/13
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DZone Links You Don't Want To Miss (1/29/13)

A Rails vulnerability gets patch, the community begins voting for the name of the next Eclipse release, and the Ouya Android gaming console is out in the wild.

Mohamed Sanaulla01/29/13
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Using JAXB to Generate Java Objects from XML Document

Having shown how to use JAXB to generate XML from Java, I am now writing to show how to do the reverse - generate Java objects from the XSD.

Bill Armstrong01/28/13
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Help Requested: DZone PaaS and IaaS Comparison Guide

DZone is currently underway creating a comparison guide of PaaS and IaaS platforms to enable users to make informed purchasing decisions in regard to using the cloud. While we prepare our quantitative comparison, we are gathering topic experts in PaaS or IaaS to participate in our research.

Max De Marzi01/28/13
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Facebook Graph Search with Cypher and Neo4j

Facebook Graph Search has given the Graph Database community a simpler way to explain what it is we do and why it matters.

Raghuraman Bala...01/28/13
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AWS Updates for Happy Architects

AWS keeps adding a lot of features to its existing services and also keeps launching new services.

Dalip Mahal01/28/13
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Stop It! No… Really Stop It

There are 5 worst practices in software development that if stopped immediately will improve your productivity by a minimum of 12% and improve quality by a minimum of 15%.

Gil Zilberfeld01/28/13
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Re-Pair Programming

When asked:”What’s the best thing I can do right now to improve my code quality” I always answer: code reviews. A code review is the best bug preventer out there. And even more, I like its older brother better: Pair programming.

Markus Eisele01/28/13
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The GlassFish Story

You know that I like to play around with visualizations - here is the result of roughly 134 committers working on GlassFish to bring us the latest and greatest in Java EE.