Using OpenStack Swift
by
Amar Kapadia Kris Rajana Sreedhar Varma |
May 2014 | Open Source
This article, by Amar Kapdia, Sreedhar Varma, and Kris Rajana, the authors of Implementing Cloud Storage with OpenStack Swift, explains the various mechanisms that are available to access OpenStack Swift. Using these mechanisms we will be able to authenticate accounts, list containers, create containers, create objects, delete objects, and so on. The various clients that are available to access OpenStack Swift are OpenStack Swift Client CLI, cURL client, HTTP REST API, JAVA libraries, .Ruby OpenStack libraries, Python libraries, and so on. In particular, we will be using OpenStack Swift client CLI, cURL and HTTP REST API to access OpenStack Swift and perform various operations on containers and objects. Also, we will be using EVault’s Long-Term Storage (LTS2) cloud storage to demonstrate the use of OpenStack Swift.
Read Using OpenStack Swift in fullWorking with a Neo4j Embedded Database
by
Onofrio Panzarino |
May 2014 | Open Source
In this article, we'll see how to create a Neo4j database. Onofrio Panzarino, the author of this book, Learning Cypher, is a programmer with 15 years experience with various languages (mostly with Java), platforms, and technologies. He has gained a lot of experience with graph databases, particularly with Neo4j. This article throws light on setting up a new Neo4j database.
Read Working with a Neo4j Embedded Database in fullUsing the WebRTC Data API
by
Andrii Sergiienko |
May 2014 | Open Source Web Development
In this article, by Andrii Sergiienko, the author of WebRTC Blueprints, introduces the WebRTC technology and also highlights the salient features of Erlang. He also given a brief history of the Erlang language.
Read Using the WebRTC Data API in fullGuidelines for Setting Up the OUYA ODK
by
Robinson Moncada Ruben Hoyos |
May 2014 | Games
This article, by Ruben Hoyos and Robinson Moncada, the authors of OUYA Game Development Essentials, will explain the various resources, folders, and libraries in the ODK, and the code that needs to be created to initiate a project for the OUYA console.
Read Guidelines for Setting Up the OUYA ODK in fullBackup and Restore Improvements
by
Gethyn Ellis |
April 2014 | Enterprise Articles
The lines between on-premise and public cloud services have become blurred. The integration between on-premise and off-premise technologies imply that you can now easily implement a backup solution that makes use of both, thus allowing you to maintain up-to-date backups both on-site and off-site. This will allow you to implement a disaster recovery plan that meets strict service-level agreements without having to invest in a Disaster Recovery (DR) site. The DR site can be in the cloud. Depending on your environment, this can significantly reduce the cost of implementing a fully blown disaster recovery site or server room.
There are several new features in SQL Server 2014 that make this possible; they are as follows:
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Backup to URL
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Backup to Microsoft Azure
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Encryption
In this article by Gethyn Ellis, the author of Getting Started with SQL Server 2014 Administration, you will look at how you can make use of the new features and integrate them into your backup and recovery plans to ensure that you maintain up-to-date off-site backups.
Read Backup and Restore Improvements in fullUser Interactivity – Mini Golf
by
Amy M. Booker Joseph D. Walters |
April 2014 | Games
This article is written by Amy M. Booker and Joseph D. Walters, the authors of Learning Objective-C by Developing iPhone Games. In this article, we are going to learn about user interaction and handling events passed from the iPhone's screen, sent from the event information to your game. This includes when a user touches, taps, or drags their finger on their screen or moves, shakes, or tilts their device. The following are the points we will touch upon in this article:
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Using user input and touch events
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Using gestures in iOS apps
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Touch start, move, and end
Using cross-validation
by
Akhil Wali |
April 2014 | Open Source
In this article by Akhil Wali, author of Clojure for Machine Learning, we will discuss several methods that can be used to improve the effectiveness of a given machine learning model. We will also implement a working spam classifier as an example of how to build machine learning systems that incorporate evaluation.
Read Using cross-validation in fullDifferences in style between Java and Scala code
by
Thomas Alexandre |
April 2014 | Open Source
In this article by Thomas Alexandre, the author of Scala for Java Developers, we discuss that if you are going to refactor or rewrite Java code into Scala code, there are a number of style differences that are useful to be aware of. Obviously, programming style is largely a matter of taste; however, a few guidelines generally acknowledged by the Scala community can help someone new to Scala to write easier-to-read and more maintainable code. This article is dedicated to showing some of the most common differences.
Read Differences in style between Java and Scala code in fullThe Fastest Way to Go from an Idea to a Prezi
by
Hedwyg van Groenendaal |
April 2014 |
In this article, by Hedwyg van Groenendaal, the author of Prezi Hotshot, we will be using the brainstorming techniques in Prezi. It is easy to create a good prezi. We will go from brainstorming to a mind map and use that as a basis for our prezi.
Read The Fastest Way to Go from an Idea to a Prezi in fullCreating a real-time widget
by
David Mark Clements |
April 2014 | Cookbooks Open Source Web Development
In this article by David Mark Clements, author of Node Cookbook Second Edition, we will discuss how to gracefully degrade to long polling and other methods with Socket.IO.
Read Creating a real-time widget in fullBest Practices for Modern Web Applications
by
Daniel Li |
April 2014 | Open Source
In this article by Daniel Li, author of Mastering Grunt, we will cover the best practices for frontend development today. It will cover load time reduction, search engine optimization, form validation, and responsive design.
Read Best Practices for Modern Web Applications in fullTesting and Tracing Applications
by
David Dossot |
April 2014 | Open Source
This article by David Dossot, author of RabbitMQ Essentials, presents two handy tracing tools provided by RabbitMQ, which are very likely to become prominent in your developer's toolbox.
Read Testing and Tracing Applications in fullSkinning a character
by
Sumeet Arora |
April 2014 | Open Source
In this article, by Sumeet Arora, the author of WebGL Game Development, we discuss various aspects of skinning a character.
Read Skinning a character in fullInk Slingers
by
Michael Rhodes |
April 2014 | Beginner's Guides Open Source
In this article, by Michael Rhodes, the author of Manga Studio 5 Beginner's Guide, you will learn pressure settings and inking and how to create new brush tips for airbrushes and other marking tools.
In this article, we'll be covering the following topics in depth:
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What is inking?
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Tools that Manga Studio provides to let us ink our artwork
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Using rulers and guides for inking
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Creating a customized brush for special effects
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How to use the Manga Studio default tones
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A walk-through inking example
Monte Carlo Simulation and Options
by
Yuxing Yan |
April 2014 | Open Source
In this article by Yuxing Yan, the author of Python for Finance, discusses how to use Monte Carlo simulation to price European, American, average, lookback, and barrier options.
In finance, we study the trade-off between risk and return. The common definition of risk is uncertainty. For example, when evaluating a potential profitable project, we have to predict many factors in the life of the project, such as the annual sales, price of the final product, prices of raw materials, salary increase of employees, inflation rate, cost of borrowing, cost of new equity, and economic status. For those cases, the Monte Carlo simulation could be used to simulate many possible future outcomes, events, and their various combinations. In this article, we focus on the applications of the Monte Carlo simulation to price various options.
Read Monte Carlo Simulation and Options in full
