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Facebook Open-Sources PlanOut, a Framework for Online Field Experiments

by Sergio De Simone on  Apr 25, 2014 1

PlanOut is Facebook's language for online field experiments supporting "A/B tests," factorial designs, and more. According to Facebook, PlanOut makes possible to separate experimental design from application code and allows experimenters to concisely describe their designs. Facebook claims to be using PlanOut to run over a thousand experiments each day that involve hundreds of millions of people.

Facebook, Google, LinkedIn, and Twitter Want to Make Sure that MySQL Is “Web-Scale”

by Abel Avram on  Apr 04, 2014

Facebook, Google, LinkedIn, and Twitter have decided to make sure that a relational databases is “web-scale”, so they have put their efforts behind WebScaleSQL, a branch of MySQL 5.6 Community Edition.

AlchemyAPI and The State of Deep Learning

by Alex Giamas on  Apr 04, 2014 1

AlchemyAPI recently announced a taxonomy and a sentiment analysis API based on deep learning that can help transform digital content into ad inventory. IBM, Yahoo, Microsoft, Facebook, Google and others are working in the deep learning space. We take the high level view of what deep learning is all about and what are the key advances throughout the past months in the field.

PHP Evolved: Facebook's New Hack Programming Language

by Jeff Martin on  Mar 27, 2014 1

PHP has long filled an important role at Facebook, and over the years the company has constantly sought to improve the language's performance. First there was the Hip Hop Virtual Machine, and now there is the Hack, programming language.

Cassandra Gains Momentum On Enterprise Adoption Around 2.1 Release

by Alex Giamas on  Mar 05, 2014

Cassandra is rapidly heading towards 2.1 release, with 2.1.0-beta1 already available for evaluation. We take a look at major features introduced in the latest major release and what's coming up. Supported by DataStax, Cassandra is expanding its reach towards the enterprise world. DataStax recently announced a partner network program, Patrick McFadin called out on MongoDB's scaling issues and other

Encrypting Files on Android with Facebook Conceal

by Abel Avram on  Jan 29, 2014 1

Facebook has open sourced Conceal, a set of Java APIs for file encryption and authentication on Android. Conceal uses a subset of OpenSSL’s algorithms and predefined options in order to keep the library smaller, currently being 85KB.

Om: Enhancing Facebook's React with Immutability

by Tom Coupland on  Jan 17, 2014

Om is a new a ClojureScript interface for Facebook’s React HTML UI library. Om uses Clojure(Script)'s persistent data structures and requestAnimationFrame to further improve React's rendering. InfoQ talked to Om's creator, David Nolen, about Om and the benefits of functional concepts for application programming.

Facebook makes Mercurial faster than Git

by Alex Blewitt on  Jan 09, 2014 6

Facebook has posted on how they've sped up Mercurial to be five times faster than Git in certain operations. Read on to find out what they have changed, and why it makes such a difference for their setup.

Facebook’s Release Process Behind the Move from Web-based to Native App

by Manuel Pais on  Dec 28, 2013

Chaitanya Mishra, from Facebook, spoke at Velocity Conf London last month about the approach to scale Facebook’s Android app from a web view interface to a full-fledged native app. To achieve this transition each product team took ownership of their features on Android. A core integration team regression tests and focuses on global app optimization over individual features optimization.

A Few Highlights from QConSF2013- Part 1 of 2

by Martin Monroe on  Nov 30, 2013

On each day of the 3-day conference at the inviting environs offered at the Hyatt there was a jam-packed schedule of speakers, exhibits and activities that made for some difficult decisions as to which tracks and what happening to attend.

Presto: Facebook’s Distributed SQL Query Engine

by Jonathan Allen on  Nov 12, 2013

Facebook has open-sourced Presto, their distributed SQL query engine. Presto uses a pipelined architecture rather than the Map/Reduce design found elsewhere. In production since early this year, Facebook has since “deployed in multiple geographical regions and [they] have successfully scaled a single cluster to 1,000 nodes”.

Joy of StackMob

by Martin Monroe on  Jun 26, 2013 2

In the beginning of MBaaS, there was StackMob. Since then the mobile ecosystem has become flooded with competitors in this new approach to app dynamics. InfoQ takes a closer look at the Mobile Backend as a Service (MBaaS) provider StackMob and its privacy practices.

Distilling the Distillation of Vision Mobile’s Market Sense

by Martin Monroe on  Jun 11, 2013

Vision Mobile is a UK think tank whose periodic reports are geared to assist mobile developers and other players in the vast mobile ecosystem in making sense of the cacophony of mobile trends. Their reports provide informed guidance that can help devs make the best decision about where to concentrate their marketing efforts.

Facebook's React JavaScript User Interfaces Library Receives Mixed Reviews

by Zef Hemel on  Jun 03, 2013 2

Facebook has open sourced React, its JavaScript library for building reactive user interfaces, used to build the Instagram website as well as portions of the Facebook website. Following the recent trend of frameworks like AngularJS, MeteorJS and Model-Driven Views as implemented in Polymer, React is based on the idea of declaratively specifying user interfaces on top of a data model.

Facebook Buck and xctool: Open Source Build Tools for Android and iOS

by Abel Avram on  May 18, 2013

This article contains details on the recently open sourced Buck and xctool, the build tools used internally by Facebook for their native Android and iOS applications.

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