An R Enthusiast Goes Pythonic!

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I’ve spent so many years using and broadcasting my love for R and using Python quite minimally. Having read recently about machine learning in Python, I decided to take on a fun little ML project using Python from start to finish.
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I’ve spent so many years using and broadcasting my love for R and using Python quite minimally….

Impulse: “Crafted Design”

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About half a year ago I urged you to watch Robert C. Martin’s talk Architecture – The Lost Years. It argued in favor of a design that clearly displays the application’s domain (e.g. logical units, services, use cases, …) and keeps auxiliary aspects (e.g. delivery mechanism, persistence, …) on the sidelines.
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About half a…

Information Hiding

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One of the basic principles of software development is information hiding. People agree that it’s desirable, but may not realize they have different ideas of what it means. And when done poorly, well-meaning attempts to make software more maintainable backfire. Leo Brodie cautions

… we should clarify. From what, or whom, are we hiding information?
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Continuous Delivery Demo using JBoss EAP and OpenShift

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This demo sets up a complete Continuous Delivery environment running in Docker containers and uses OpenShift as the deployment environment. As the artifact moves forward in the delivery pipeline, new containers (gears) are created on OpenShift and the artifact gets deployed onto these containers which represent Dev, System Test, Performance Test and Pre-Production environments.

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Bidirectional Communication Between An Apple Watch Extension and the Host App

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In this entry we’re going to focus on building Apple Watch apps that can communicate back and forth with the host application running on the iPhone.  This is extremely important since the Apple Watch provides a second screen/peripheral complimentary experience to the main app running on the iOS device – be it a remote control, or quick view/glance into whats happening…

The Front-End Optimization Checklist

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Another first-ever guide topic was released last week!  DZone’s Guide to Performance & Monitoring has been a resounding success so far. It’s clear that monitoring technology and performance tuning are some of the biggest concerns when building software.
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When working on web applications, the first place you should look for…

How to Protect a Business Idea While Outsourcing

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When you hire a programmer or a team of programmers to implement your business idea, there is a significant risk of theft and accidental loss. They may implement your idea (or its elements) without you using their own resources. Also, they may disclose it to their friends, and those friends may disclose it even further, until it is eventually implemented by someone you don’t even know. This…

What Done REALLY Looks Like in DevOps

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Steve Ropa blogged about What done looks like in DevOps. I must say I respectfully, but fully disagree with Steve here.

For those of you that remember I gave an Ignite talk about my views on the use of the Definition of Done back ad #deovpsdays 2013 in Amsterdam.
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This is the shared responsibility mindset DevOps really brings,…

Scraping Leankit for Analytics and Pretty URLs

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Of course, all story/issue trackers should store their canonical data as JSON and in source-control, but I’ve sadly not managed to convince any of the vendors yet. I’ve been playing with Leankit recently, and some of the visuals are alluring. A peeve though is the lack of access to my data (JSON, source-control as mentioned) and the lack of pretty incoming URLs like JIRA (and others) have.

I…

The Hacker’s Guide to Python, 2nd Edition!

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A year passed since the first release of The Hacker’s Guide to Python in March 2014. A few hundreds copies have been distributed so far, and the feedback is wonderful!

I already wrote extensively about the making of that book last year, and I cannot emphasize enough how this adventure has been amazing so far. That’s why I decided a few months ago to update the guide and add some new content.

PyCharm vs. Sublime Text

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This blog post is about comparing two popular development tools and text editors, Sublime Text and PyCharm to each other. This blog post is written from the perspective of professional software development or if programming is what you do for living.
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After a few weeks I found myself using PyCharm for most of my programming needs. The…

Geek Reading May 22, 2015

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Today we focus on startups and your career. First, on Both Sides of the Table they discuss the best way to explain your startup. Does your startup have a story or a good narrative? Next, Seth Godin talks about continuous learning in your field. Do you know who you should be following or reading in your industry?

As always, enjoy today’s items, and please participate in the discussions on these…

Geek Reading May 21, 2015

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Leading today’s stories is a Logjam. The Next Web reports on a new bug found in SSL called Logjam. Yahoo Labs open-sourced EGADS, a scalable, configurable and novel anomaly detection system. On High Scalability, we have a very good article about scaling demanding queries, high velocity data modifications and fast indexing. There is a lot of good information in that post.

As always, enjoy…

3 Best Practices for Testing Software Security

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For quality assurance specialists who spend most of their time analyzing applications for performance-related defects, security testing can pose a bit of a problem. Ensuring high-quality security within a piece of software is becoming more important with each passing day. Cybercrime has never been a greater concern to software developers, and QA teams need to do their part by…

3 Different Types of Software Security Testing

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Security testing is one of the core competencies of any successful quality assurance specialist. QA best practices cover a lot of ground, but ensuring that an application contains minimal security vulnerabilities continues to be a primary concern for software testers. Like other aspects of QA, there are many varieties of security testing that teams need to be familiar with. Here are a few of the…

TDD is Like Riding a Bicycle

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From time to time I get to teach unit testing and TDD to developers. And every single time I get to learn something new.
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From time to time I get to teach unit testing and TDD to developers. And every single time I get to learn something new. Learning TDD reminds me of learning to ride a bicycle.

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