Bits 'n Pieces on...
Follow
Find tag "facebook"
1.0K views | +4 today
Bits 'n Pieces on Big Data R&D
Information and insight into Big Data R&D
Curated by onur savas
Your new post is loading...
Your new post is loading...
Scooped by onur savas
Scoop.it!

Facebook Gives Lessons In Network-Datacenter Design

Facebook Gives Lessons In Network-Datacenter Design | Bits 'n Pieces on Big Data R&D | Scoop.it
Every now and again, the hyperscale datacenter operators tell the world about some new tricks they have come up with to solve a particular set of pesky pro
more...
Scooped by onur savas
Scoop.it!

A (very) brief review of published human subjects research conducted with social media companies | Simply Statistics

A (very) brief review of published human subjects research conducted with social media companies | Simply Statistics | Bits 'n Pieces on Big Data R&D | Scoop.it

More and more human subjects research is being performed by large tech companies. This is a short list of published research.

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Experimental evidence of massive-scale emotional contagion through social networks

Experimental evidence of massive-scale emotional contagion through social networks | Bits 'n Pieces on Big Data R&D | Scoop.it

"We show, via a massive (N = 689,003) experiment on Facebook, that emotional states can be transferred to others via emotional contagion, leading people to experience the same emotions without their awareness. We provide experimental evidence that emotional contagion occurs without direct interaction between people (exposure to a friend expressing an emotion is sufficient), and in the complete absence of nonverbal cues.

 "
more...
No comment yet.
Scooped by onur savas
Scoop.it!

Facebook Creates Software That Matches Faces Almost as Well as You Do | MIT Technology Review

Facebook Creates Software That Matches Faces Almost as Well as You Do | MIT Technology Review | Bits 'n Pieces on Big Data R&D | Scoop.it
Facebook’s new AI research group reports a major improvement in face-processing software.
onur savas's insight:

Using deep learning. It looks like Google is not the only one investing in deep learning.

more...
No comment yet.
Scooped by onur savas
Scoop.it!

An Analysis of Facebook Photo Caching

onur savas's insight:

"This paper examines the workload of Facebook’s photoserving
stack and the effectiveness of the many layers
of caching it employs. Facebook’s image-management
infrastructure is complex and geographically distributed.
It includes browser caches on end-user systems, Edge
Caches at ~20 PoPs, an Origin Cache, and for some
kinds of images, additional caching via Akamai. The
underlying image storage layer is widely distributed, and
includes multiple data centers."

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Using Facebook Data to Predict User's Age, Gender and Personality Traits

Using  Facebook Data to Predict User's Age, Gender and Personality Traits | Bits 'n Pieces on Big Data R&D | Scoop.it
In the age of social media, people's inner lives are increasingly recorded through the language they
onur savas's insight:

There were similar studies in the past. For example, MIT's Gaydar: http://blogs.cornell.edu/info2040/2011/10/09/mits-gaydar/

more...
No comment yet.
Rescooped by onur savas from Social Network Analysis #sna
Scoop.it!

DIY Graph Search - Max De Marzi @ GraphConnect Boston + Chicago 2013

Facebook Graph Search has given the Graph Database community a simpler way to explain what it is we do and why it matters. I wanted to drive the point home by b


Via ukituki
more...
No comment yet.
Scooped by onur savas
Scoop.it!

The Anatomy of Large Facebook Cascades | Facebook

The Anatomy of Large Facebook Cascades | Facebook | Bits 'n Pieces on Big Data R&D | Scoop.it
Facebook Data Science wrote a note titled The Anatomy of Large Facebook Cascades. Read the full text here.
more...
No comment yet.
Scooped by onur savas
Scoop.it!

Big questions for big data: Stanford’s Jure Leskovec

Big questions for big data: Stanford’s Jure Leskovec | Bits 'n Pieces on Big Data R&D | Scoop.it

Jure Leskovec uses information collected from sites like Twitter, Wikipedia and Facebook to tackle big questions about how society works.

onur savas's insight:

Prof. Leskovec is an expert in information processing using social media. He has many influential papers about modeling and analysis of social networks, and diffusion of information and influence: http://cs.stanford.edu/people/jure/

more...
No comment yet.
Scooped by onur savas
Scoop.it!

On Facebook when the earth shakes...

On Facebook when the earth shakes... | Bits 'n Pieces on Big Data R&D | Scoop.it

On Sunday August 24th, 3:20 a.m Pacific time, an earthquake of magnitude 6.0 occurred in the Bay Area, 3.7 miles (6.0 km) northwest of American Canyon near the West Napa Fault. It was the largest earthquake in the Bay Area since the 1989 Loma Prieta earthquake.

During a crisis, people turn to Facebook (FB) to stay connected to their friends and family. They use it to receive social support and keep the people they care about informed on how they are doing.

Data scientists at FB used aggregate, anonymized Facebook activity data from cities located within 300 kilometers (around 200 miles) from the epicenter and analyzed how their Facebook activity following the earthquake differed from usual activity. A recent post from Jawbone (https://jawbone.com/blog/napa-earthquake-effect-on-sleep/) showed the effect of the earthquake on people's sleep. 

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Facebook uses ethnography to deliver more relevant ads

Facebook uses ethnography to deliver more relevant ads | Bits 'n Pieces on Big Data R&D | Scoop.it


“As researchers focusing on Facebook’s advertising, we led research trips with a cross-functional team of product managers, marketers, and engineers to Indonesia, Turkey, and South Africa to develop a solid understanding of cultural differences across these countries. [...] Forming a richer understanding of how businesses and people connect with each other—both on and off of Facebook—around the world works will help us develop better ad solutions that drive a positive feedback cycle: we will make better experiences for the people who use Facebook and for the businesses and brands who want to connect with their core customers and prospects.”

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Data Mining Reveals How Conspiracy Theories Emerge on Facebook | MIT Technology Review

Data Mining Reveals How Conspiracy Theories Emerge on Facebook | MIT Technology Review | Bits 'n Pieces on Big Data R&D | Scoop.it
Some people are more susceptible to conspiracy theories than others, say computational social scientists who have studied how false ideas jump the “credulity barrier” on Facebook.
onur savas's insight:

The paper "Collective attention in the age of (mis)information" is at http://arxiv.org/abs/1403.3344. A group of scientists from NEU, INRIA and IMT (Italy).

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Detecting Emotional Contagion in Massive Social Networks

Detecting Emotional Contagion in Massive Social Networks | Bits 'n Pieces on Big Data R&D | Scoop.it

Happiness and other emotions spread between people in direct contact, but it is unclear whether massive online social networks also contribute to this spread. Here, we elaborate a novel method for measuring the contagion of emotional expression. With data from millions of Facebook users, we show that rainfall directly influences the emotional content of their status messages, and it also affects the status messages of friends in other cities who are not experiencing rainfall. For every one person affected directly, rainfall alters the emotional expression of about one to two other people, suggesting that online social networks may magnify the intensity of global emotional synchrony.

more...
No comment yet.
Scooped by onur savas
Scoop.it!

Researchers Draw Romantic Insights From Maps of Facebook Networks

Researchers Draw Romantic Insights From Maps of Facebook Networks | Bits 'n Pieces on Big Data R&D | Scoop.it
Two computer scientists analyzing Facebook data found that spouses and romantic partners in the strongest relationships tend to act as bridges to different parts of a person’s social world.
more...
No comment yet.
Scooped by onur savas
Scoop.it!

Facebook's trillion-edge, Hadoop-based and open source graph-processing engine

Facebook's trillion-edge, Hadoop-based and open source graph-processing engine | Bits 'n Pieces on Big Data R&D | Scoop.it
Facebook has detailed its extensive improvements to the open source Apache Giraph graph-processing platform. The project, which is built on top of Hadoop, can now process trillions of connections between people, places and things in minutes.
more...
DG2's curator insight, September 3, 2013 8:10 AM

Many ML algorithms are most readily expressed in terms of local, vertex-centric computations. Think of label propagation, k-means, spectral clustering ... All in all, moving from vector spaces to graphs is the natural thing to do in many applications. Giraph provides an efficient way to run this kind of algorithms on top of an existing Hadoop infrastructure.

Scooped by onur savas
Scoop.it!

A New Tool Aims to Help Facebook Users Dig Deep (July 2013 release)

A New Tool Aims to Help Facebook Users Dig Deep (July 2013 release) | Bits 'n Pieces on Big Data R&D | Scoop.it
Facebook is planning to introduce Graph Search, a tool to help users sift the volumes of information on the site, and its success is important to the company’s future.
more...
No comment yet.