Article Network

Enterprise Geodatabase

by Hussein Nasser | June 2014 | Open Source

In this article, by Hussein Nasser, the author of Learning ArcGIS Geodatabases, introduces the concept of enterprise geodatabases, an upgraded version of a geodatabase that supports multiple user access, enhanced security, and higher availability.

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The Hunt for Data

by Nishant Shukla | June 2014 | Cookbooks Open Source

In this article by Nishant Shukla, author of the book Haskell Data Analysis Cookbook, we will learn how to use local data of different file formats and also learn how to download data from the Internet using our Haskell code.

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Setting Up a Development Environment

by Naveed ur Rahman | June 2014 | Networking & Telephony Open Source

This article by Naveed ur Rahman, author of the book Configuration Management with Chef-Solo, will teach you how to create a Hello World recipe.

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Sparrow iOS Game Framework - The Basics of Our Game

by Johannes Stein | June 2014 | Beginner's Guides Open Source

In this article, by Johannes Stein, author of the book Sparrow iOS Game Framework Beginner's Guide, we will begin setting up our game. We will learn about what to consider when targeting different devices, and we will take the first step in setting up our game. This includes creating the scenes we need and displaying static images on the screen.

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Various subsystem configurations

by Anders Welén Arnold Johansson | June 2014 | Open Source

This article by Arnold Johansson and Anders Welen, the authors of WildFly Performance Tuning, talks about the various subsystem configurations available for WildFly.

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Introduction to MapReduce

by Antonios Chalkiopoulos | June 2014 | Open Source

In this article, by Antonios Chalkiopoulos, the author of Programming MapReduce with Scalding, we will take a look at the core technologies used in the distributed model of Hadoop; more specifically, we will cover the Hadoop platform and the framework it provides, the MapReduce programming model, and technologies built on top of MapReduce that provide an abstraction layer and an API that is easier to understand and work with.

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Exact Inference Using Graphical Models

by Kiran R Karkera | June 2014 | Open Source

In this article by Kiran R Karkera, the author of Building Probabilistic Graphical Models with Python, we shall employ over fully specified graphical models to various inference engines to obtain answers to the questions.

Before we start on the inference trail, we shall learn about the complexity of the inference problem. Using different types of inference is appropriate in certain contexts, and we will learn which type is applicable where, and then experiment with both approaches.

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Sprites

by Kirill Muzykov | June 2014 | Beginner's Guides Games Open Source

In this article by Kirill Muzykov, the author of Learning iPhone Game Development with Cocos2D 3.0, we'll start building our sample game called Cocohunt. We'll start by creating the Xcode project skeleton and adding the GameScene class to the project. Then, we'll start filling the empty GameScene scene with the actual game objects. We will add the most common type of objects used in games—sprites. We'll learn their main properties, such as position and anchor point. We will make them move and will even add an animation.

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Uploading multiple files

by Anghel Leonard | June 2014 | Enterprise Articles Web Development

In this article by, Anghel Leonard, the author of Mastering JavaServer Faces 2.2, we will look into the concept of uploading multiple files using JSF 2.2 By default, JSF 2.2 does not provide support for uploading multiple files, but with some adjustments, we can easily achieve this goal. In order to have multiple file uploads, you need to focus on two aspects, which are listed as follows:

  • Making multiple file selections possible

  • Uploading all the selected files

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Introducing variables

by John Bura | June 2014 | Games

Computer programming is based on mathematical principles. After all, the first computer was made to actually calculate equations, and it was only later that applications (as we know them) were developed. You have probably heard of variables in science and math classes. In computers, these variables are necessary to make applications and they are very important in games. Even a small indie game might have hundreds of variables. In this article by John Bura, author of Construct 2 Game Development by Example, we will look at what a variable is, why it is needed, and the different types of variables.

Variables are places where you can store small amounts of data. This data can be a name, a number, a date, a game object, or it can even store true or false information. Variables are essential to games because they can store items such as the following:

  • Score

  • Player name

  • Game objects

  • Mouse position

  • Keyboard input

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Serving and processing forms

by Amuthan G | June 2014 | Beginner's Guides Open Source Web Development

In this article by Amuthan G, author of the book Spring MVC Beginner's Guide, we will see how to serve and process forms; we will also learn how to bind form data with a form-backing bean and read that bean in the controller.

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Working with Pentaho Mobile BI

by Sergio Ramazzina | June 2014 | Cookbooks Open Source

In this article by Sergio Ramazzina, the author of Pentaho Business Analytics Cookbook, we will learn about accessing BA server from a mobile device, accessing files and folders, adding files to favorites, and changing the default startup screen.

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Kendo UI DataViz – Advance Charting

by Sagar Ganatra | June 2014 | Cookbooks Open Source Web Development

In this article by Sagar Ganatra, author of Kendo UI Cookbook, we will learn about different charting widgets provided by the Kendo UI that can be used to visualize data. These include the Stock Chart widget that shows you the stock price history of a particular stock, the Gauge widget that creates a dashboard that contains gauge charts, and Barcode and QRCode widgets that allow you to create codes that can be used to identify products.

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End User Transactions

by Ganesh Karthik S | June 2014 | Enterprise Articles

In this article, Ganesh Karthik S, the author of the book SAP HCM – A Complete Tutorial, has discussed about the Transactional codes in details.

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Upgrading from Previous Versions

by Edvaldo Alessandro Cardoso | June 2014 | Enterprise Articles

This article written by Edvaldo Alessandro Cardoso, author of the book System Center 2012 R2 Virtual Machine Manager Cookbook, provides recipes that allow you to smooth the migration process from the previous versions of System Center to the new System Center 2012 R2 with tips and tricks.

In this article, we will cover the following:

  • Reviewing the upgrade options

  • Checking the VMM system requirements and preparing for the upgrade

  • Upgrading to VMM 2012 R2

  • Reassociating hosts after upgrading

  • Updating the VMM agents

  • Performing other post-upgrade tasks

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Using the Playlist

by Shaun Friedman | June 2014 | Cookbooks

In this article by Shaun Freidman, author of the book FL Studio Cookbook, you can learn to arrange the many pieces and parts of your production by pasting patterns in FL Studio. You may also paint automation curves and record external audio in the playlist. The playlist is where you can specify which patterns are played (or not played) at which point in time. You can actually make a full-length song with one pattern by using the Piano roll and by continually adding more beats and bars with data. Thus, beats per bars is the area where you can distinguish between an intro, verse, chorus, bridge, outro, or any type of section of your song. It is all up to the individual artist using FL Studio to decide their particular musical arrangement. This is shown in the first recipe Using patterns to build a song.

In this article, we will cover the following topics:

  • Using patterns to build a song
  • Comparing patterns and audio
  • Using markers and snap
  • Viewing the playlist
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Shaping a model with Meshmixer and printing it

by Richard Salinas | June 2014 | Cookbooks Open Source

In this article by Richard Salinas, author of the book 3D Printing with RepRap Cookbook, has discussed about shaping a model and then printing it. We're going to take the models that are scanned with 123D Catch and make them better. We'll do this by using Meshmixer, the free program offered by Autodesk. Meshmixer is a 3D modeling program that offers a variety of sculpting tools that manipulate the surface mesh of a 3D model. It also offers a series of tools that are geared to optimize a model for 3D printing. We'll improve the surface of a model by working with its mesh. Later on, in the printing section, we're going to learn how to optimize what we can't see of the model.

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Machine Learning in Bioinformatics

by Paurush Praveen Sinha | June 2014 | Cookbooks Open Source

In this article by Paurush Praveen Sinha, the author of Bioinformatics with R Cookbook, discusses how to deal with machine learning methods in bioinformatics using R.

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What is Quantitative Finance?

by Alonso Peña, Ph.D. | June 2014 | Open Source

In this article by Alonso Peña, Ph.D., author of Advanced Quantitative Finance with C++, we will give a brief introduction to Quantitative Finance, delimit the subject to option pricing with C++, and describe the structure of the article.

Quantitative Finance studies the application of quantitative techniques to the solution of problems in finance. It spans diverse areas such as the management of investment funds and insurance companies, the control of financial risks for manufacturing companies and banking industry, and the behavior of the financial markets. Quantitative Finance is eminently interdisciplinary building upon key expertise from the disciplines of finance, mathematics, and informatics.

In this article, we will focus on one aspect of Quantitative Finance—the pricing of financial derivatives using the programming language C++. In the following sections, we will describe the main features of the three key disciplines that constitute Quantitative Finance:

  • Finance

  • Mathematics

  • Informatics

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Discovering Python's parallel programming tools

by Jan Palach | June 2014 | Open Source

In this article by Jan Palach, author of Parallel Programming with Python, we will expose some Python libraries to implement parallel solutions.

The Python language, created by Guido Van Rossum, is a multi-paradigm, multi-purpose language. It has been widely accepted worldwide due to its powerful simplicity and easy maintenance. It is also known as the language that has batteries included. There is a wide range of modules to make its use smoother. Within parallel programming, Python has built-in and external modules that simplify implementation. This work is based on Python 3.x.

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Common performance issues

by Osama Oransa | June 2014 | Enterprise Articles

In this article by Osama Oransa, author of Java EE 7 Performance Tuning and Optimization, we will discuss the most common performance issues, classify them, describe the symptoms, and analyze the possible root causes.

Let's now go through the most common performance issues in enterprise applications that we could face during performance troubleshooting. For each issue, we will define the issue, describe it and its symptoms, and give examples. Let's begin with classifying the most common issues and organizing them into different categories.

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Getting Started with Mockito

by Marcin Grzejszczak | June 2014 | Open Source

In this article by Marcin Grzejszczak, author of Mockito Cookbook, for those who don't know Mockito at all, he has written a really short introduction about it.

In this article, we will cover the following recipes:

  • Adding Mockito to a project's classpath
  • Getting started with Mockito for JUnit
  • Getting started with Mockito for TestNG
  • Mockito best practices - test behavior, not implementation
  • Adding Mockito hints to exception messages in JUnit (Experimental)
  • Adding additional Mockito warnings to your tests in JUnit (Experimental)
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Designing Puppet Architectures

by Alessandro Franceschi | June 2014 | Networking & Telephony Open Source

This article by Alessandro Franceschi, the author of the book Extending Puppet, outlines the components to manage when defining a Puppet architecture: the available tools, how to integrate them, how to cope with data and code, and organize resources to be applied to nodes.

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Veil-Evasion

by Robert W. Beggs | June 2014 | Open Source

This article is written by Robert W. Beggs, the author of Mastering Kali Linux for Advanced Penetration Testing. This article focuses on how Veil-Evasion enhances the ability to bypass antivirus detection.

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Adding a developer with Django forms

by Samuel Dauzon | June 2014 | Open Source Web Development

This article has been created by Samuel Dauzon, the author of Getting Started with Django. Django forms work with an object that inherits from the Form class. This object will handle much of the work we have done manually in the previous example.

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Using the client as a pivot point

by Kevin Cardwell | June 2014 | Networking & Telephony Open Source

This article is written by Kevin Cardwell, the author of the Building Virtual Pentesting Labs for Advanced Penetration Testing book. This article is about using the client as a pivot point.

When we compromise a machine, the next thing we want to do is use the client source to our advantage. This is because we know most networks are configured with the locations that are inside the network architecture being considered at a higher level of trust and not with a location that is outside the network. We refer to this as pivoting.

(For more resources related to this topic, see here.)

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Writing Tag Content

by Vitor Subtil | June 2014 | Cookbooks Open Source

The article by Vitor Subtil, the author of Near Field Communication with Android Cookbook, explains that the NFC Forum is responsible for developing standards-based NFC specifications to allow interoperability between different devices and tags. One of the specifications created by the NFC Forum is NFC Data Exchange Format (NDEF). The NDEF specification defines the message encapsulation format to exchange information between two NFC-enabled devices or devices with the NFC tag. NDEF is a lightweight, binary message format that can be used to encapsulate several custom payloads. Using this abstraction layer allows us to create the standard tag content compatible with all the NFC Forum tag types, ignoring the fact that each tag type has different hardware setups and memory layouts.

In this article, we will cover the following topics:

  • Working with the NDEF record
  • Writing a URI-formatted record
  • Writing a text-formatted record
  • Using Android Application Record
  • Working with external types
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Working with Live Data and AngularJS

by Josh Kurz | June 2014 | Open Source Web Development

In this article by Josh Kurz, author of Mastering AngularJS Directives, we will learn about live data and AngularJS.

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Signal Processing Techniques

by Ivan Idris | June 2014 | Open Source

In this article by Ivan Idris, author of Learning NumPy Array, we will learn about some signal-processing techniques, and we will analyze time-series data with these. As example data, we will use the sunspot data provided by a Belgian scientific institute. We can download this data from several places on the Internet, and it is also provided as sample data by the statsmodels library. There are a number of things we can do with the data, such as:

  • Trying to determine periodic cycles within the data. This can be done, but this is a bit advanced, so we will just get you started.

  • Smoothing the data to filter out noise.

  • Forecasting.

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Unleashing the powers of Lumion

by Ciro Cardoso | June 2014 | Open Source

This article is written by Ciro Cardoso, the author of Lumion 3D Cookbook. With this article, we will deliver the best of what Lumion has to offer and how to use Lumion's intuitive and powerful tools for bringing your visions to life. While reading this article, you will be taken through a wide variety of topics that will help you improve your workflow and your project's quality. You will start with some basic notions that will ensure that you start a project with the right foot. You will find that Lumion will not only help you set up a solid and well-organized project, but also increase the quality and detail of the still image or movie that you'll produce.

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The anatomy of a report processor

by Michael Duffy | June 2014 | Open Source

This article by Michael Duffy, the author of Puppet Reporting and Monitoring, describes the anatomy of a report processor and how to create a report processor.

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Building a Web Application with PHP and MariaDB – Introduction to caching

by Sai Srinivas Sriparasa | June 2014 | Open Source Web Development

In this article by Sai Srinivas Sriparasa, author of the book Building a Web Application with PHP and MariaDB: A Reference Guide, we'll learn how caching can be defined as the process of making popular data highly available by temporarily storing the data in memory that allows responding to a request faster by retrieving data from the memory rather than going onto the disk. There are three types of caching, as follows:

  • Caching in the database
  • Caching in the application
  • Content caching
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Automating performance analysis with YSlow and PhantomJS

by Rob Friesel | June 2014 | Cookbooks Open Source Web Development

This article by Rob Friesel, author of the PhantomJS Cookbook, demonstrates how to set up an automated performance analysis task on a continuous integration server (for example, Jenkins CI) using PhantomJS and the YSlow library.

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Selecting and initializing the database

by Krasimir Tsonev | June 2014 | Open Source Web Development

To build a blog application, we need a database that will store the published articles. In most cases, the choice of the database depends on the current project. There are factors such as performance and scalability and we should keep them in mind. In order to have a better look at the possible solutions, we will have a look at the two of the most popular databases, MongoDB and MySQL, in this article by Krasimir Tsonev, the author of Node.js Blueprints. The first one is a NoSQL type of database. According to the Wikipedia entry (http://en.wikipedia.org/wiki/NoSQL) on NoSQL databases:

"A NoSQL or Not Only SQL database provides a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases."

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Metasploit Custom Modules and Meterpreter Scripting

by Nipun Jaswal | June 2014 | Open Source

In this article, by Nipun Jaswal, the author of Mastering Metasploit, we will cover the basics of writing custom and post-exploitation modules.This article will also help you to understand meterpreter scripting. We will also see how we can pivot the target network and set up persistent access.

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