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Understanding outside-in

by Sujoy Acharya | November 2013 | Open Source

In this article by Sujoy Acharya, author of the book Test-Driven Development with Mockito, we will cover different styles of TDD and write code using them. Generally, the outside-in approach covers use case level functionality or is intended for acceptance tests. These tests provide regression suits and system documentation; if they fail, user/customer acceptance also fails.

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Visualization of Big Data

by Manoj R Patil | November 2013 | Open Source

This article written by Manoj R Patil, the author of the book Pentaho for Big Data Analytics, provides a basic understanding of visualizations and examples to analyze the patterns using various charts based on Hive data.

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Limits of Game Data Analysis

by Coupart Thibault | November 2013 | Games Open Source

In this article by Thibault Coupart, the author of Game Data Analysis – Tools and Methods, we will see some general recommendations about game analytics and the kinds of limits they have. The first section will detail the philosophy and objectives that should guide the use of game analytics, and the second section will outline their limits.

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Creating and Utilizing Custom Entities

by Filip Lundgren Ruan Pearce-Authers | November 2013 | Games

This article by Filip Lundgren and Ruan Pearce-Authers, the authors of the book CryENGINE Game Programming with C++, C#, and Lua, covers the CryENGINE entity system, which provides the means for creating everything from simple physicalized objects to complex weather simulation managers.

In this article we will:

  • Elaborate on the basic concept and implementation of the entity system
  • Create our first custom entity in Lua, C#, and C++
  • Learn about the game object system
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Setting Up NameNode HA

by Danil Zburivsky | November 2013 | Open Source

This article, written by Danil Zburivsky, the author of Hadoop Cluster Deployment, describes the configuration of Hadoop's NameNode High Availability (HA) setup.

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Building Responsive Image Sliders

by Gilberto Crespo | November 2013 | Web Services Open Source

The image slider has been used a lot and has become a very popular web element. On a website, with beautiful transitions and animations, captions and descriptions, and the use of custom timings, an attractive business presentation is delivered online. Also, a good image slider can display a product showcase, catches the user's attention, and improves its sale.

In this article, by Gilberto Crespo, the author of Responsive Web Design with jQuery, we will learn about:

  • Different types of responsive image sliders
  • Introducing touch gestures in user experience
  • Implementing touch events with JavaScript plugins
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Reducing Data Size

by Andrew Chisholm | November 2013 | Open Source

In this article by Andrew Chisholm, author of Exploring Data with RapidMiner, we will learn how to select attributes using models.

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by Fabrizio Volpe Rosato Fabbri | November 2013 | Enterprise Articles

In this article by Rosato Fabbri and Fabrizio Volpe, the authors of Getting Started with FortiGate, we will focus on diagnostic tools that are (for the most part) based on the CLI. We will start from a group of tools dedicated to hardware diagnostics, and then we will see a group of commands to identify errors related to layers 2 and 3 of the TCP/IP stack

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Securing the Hadoop Ecosystem

by Sudheesh Narayanan | November 2013 | Open Source

In this article by Sudheesh Narayanan, the author of the book Securing Hadoop, we look at the Hadoop ecosystem which consists of various components such as Hive, Oozie, and HBase. We need to secure all the other Hadoop ecosystem components.

In this article, we will look at the each of the ecosystem components and the various security challenges for each of these components, and how to set up secured authentication and user authorization for each of them.

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by Andrew Keig | November 2013 | Open Source Web Development

This article by Andrew Keig, the author of the book Advanced Express Web Application Development, demonstrates how to install Node.js and install Express globally. It also shows how to test our Express with Mocha and SuperTest. The various ways of logging into our application is also shown.

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Issues and Wikis in GitLab

by Jonathan M. Hethey | November 2013 | Open Source

This article, by Jonathan M. Hethey, author of GitLab Repository Management, covers the documentation of software and its development through built-in wikis. Use of issue tracking inside GitLab and assigning issues to developers will also be covered.

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Data Analytics

by Alex Meadows | November 2013 | Cookbooks

In this article created by Alex Meadows the author of Pentaho Data Integration Cookbook Second Edition, we will cover the following topics:

  • Reading data from a SAS datafile

  • Studying data via stream statistics

  • Building a random data sample for Weka

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Setting Up WooCommerce

by Robbert Ravensbergen | November 2013 | e-Commerce Open Source

In this article by Robbert Ravensbergen, author of the book Building E-Commerce Solutions with WooCommerce, we learn about installing WooCommerce .

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Code interlude – signals and slots

by Ray Rischpater | November 2013 | Open Source

This article is by Ray Rischpater, author of the book Application Development with Qt Creator. In software systems, there is often the need to couple different objects. Ideally, this coupling should be loose, that is, not dependent on the system's compile-time configuration. This is especially obvious when you consider user interfaces; for example, a button press may adjust the contents of a text widget or cause something to appear or disappear. Many systems use events for this purpose; components offering data encapsulate that data in an event, and an event loop (or, more recently, an event listener) catches the event and performs some action.

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Automated testing using Robotium

by Hrushikesh Zadgaonkar | November 2013 | Open Source

Automated testing helps us to maintain high software quality and provides a facility to capture if any code changes affect the actual use case. This article by Hrushikesh Zadgaonkar, the author of Robotium Automated Testing for Android, introduces the Robotium framework, its different features, its benefits in the world of automated testing, the API set of the Robotium Framework, and how to implement the Robotium Remote Control using SAFS.

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