TDTS21: Advanced Networking Lecture 8: Online Social Networks Based on slides from P. Gill Revised 2015 by N. Carlsson.

Slides:

Advertisements

Similar presentations

CS5038 The Electronic Society Lecture: Social Networking Lecture Outline Social Networking Service Social Networking Sites –Bebo –Friendster –MySpace Social.

Advertisements

Social Media Marketing Presented by Jacob Richman TechShoret Conference, February 26, 2009.

Getting Started with Social media YouTube, We Tube Jayme Swain Director, Engage.

photo credit: dbarefootdbarefoot Social Media is Consumer generated media It is media that is designed to be shared, sharing means that it is easy to.

Our Digital World Second Edition

Stelios Lelis UAegean, FME: Special Lecture Social Media & Social Networks (SM&SN)

Analysis and Modeling of Social Networks Foudalis Ilias.

Comparison of Social Networks by Likhitha Ravi. Outline What is a social network? Elements of social network Previous studies What is missing in previous.

The popularity of the social networks. The most popular social networks.

Social Media Networking Sites Charlotte Jenkins Designing the Social Web

Enabling the Social Web Krishna P. Gummadi Networked Systems Group Max Planck Institute for Software Systems.

Cross-linking Folksonomies Harith Alani. Multiple SNS Accounts del.icio.us.

By Christopher Tonkin. What is Web 2.0? Web 2.0 is made up of many things. Eg. Web applications, social-networking sites, video-sharing sites, wikis and.

Social Networking Ottawa Lifelong Learning Fall 2009 Impact.

Social Media & the Enterprise, Part 1 Social Media 101 An Introduction to User-Driven Communities & Content for Business Leaders Presented by Sean Gallagher.

Masoud Valafar †, Reza Rejaie †, Walter Willinger ‡ † University of Oregon ‡ AT&T Labs-Research WOSN’09 Barcelona, Spain Beyond Friendship Graphs: A Study.

Web as Graph – Empirical Studies The Structure and Dynamics of Networks.

Measurement and Analysis of Online Social Networks By Alan Mislove, Massimiliano Marcon, Krishna P. Gummadi, Peter Druschel, Bobby Bhattacharjee Attacked.

User Interactions in OSNs Evangelia Skiani. Do you have a Facebook account? Why? How likely to know ALL your friends? Why confirm requests? Why not remove.

1 Measurement and Analysis of Online Social Networks A. Mislove, M. Marcon, K Gummadi, P. Druschel, B. Bhattacharjee Presentation by Yong Wang (Defense.

ICT iGCSE.  You should be able to describe the use of Internet developments such as:  Web 2.0  blogs  wikis  digital media uploading websites  social.

First of all….. it’s never too late to start. “blogger” is not “viral” is not “avatar” is not.

Measurement and Evolution of Online Social Networks Review of paper by Ophir Gaathon Analysis of Social Information Networks COMS , Spring 2011,

By: Aaron Gustafson Owner Computers N’ Stuff.  Facebook is FREE!!!  Youtube is FREE!!!  Twitter is FREE!!!  Google Plus is FREE!!!  Website hosting.

New media for outreach New media and you. 77% of active internet users regularly read blogs Twitter has 20 million new users every month Facebook has.

CSE390 Advanced Computer Networks Lecture 15: Online Social Networks (The network is people) Based on slides by A. Mislove, F. Schneider, and W. Willinger.

Using Social Networks in Education Region One Technology Conference May 11, 2010.

Social Media As Part Of The Marketing Mix Ian Crockett.

Social Media How Can This New Technology Possibly Help My Congregation?

Social Media & The Chaplain. Social Media Social Media Is Consumer generated media it is media that is designed to be shared, sharing means that it is.

Knowing Your Facebook From Your Flickr Dan O’ Neill – -

Online Social Networks Modified from Philipa Gill CPE 401 / 601 Computer Network Systems Mehmet Hadi Gunes.

Data Analysis in YouTube. Introduction Social network + a video sharing media – Potential environment to propagate an influence. Friendship network and.

TUMBLR B US 111 By: Leslie Knuppel. I NTRODUCTION Created in April 2007 by David Karp Headquarters in Midtown Manhattan, New York City Karp named Best.

© Crown copyright Met Office Dissemination of warnings and forecasts – social networks 29 th November 2012 Sarah Davies, Met Office.

CS5038 The Electronic Society Lecture: Social Networking Lecture Outline Social Networking Service Social Networking Sites –Bebo –Friendster –MySpace –Facebook.

Understanding and Using Social Media. Attention Overload.

Social Media Getting Social in a Digital World. (And, why it matters to your business!)

Internet in 21st Century. We all use web in our daily lives, from our mobiles or computers. However we do not realize how fast internet is getting bigger.

Communication in the Real World SOCIAL MEDIA’S AFFECT ON SOCIETY.

The Birth & Growth of Web 2.0 COM 415-Fall II Ashley Velasco (Prince)

Let’s Overview The Three Main Areas We Need: Domain Name Web Hosting Website.

Where the Wild Things (And People) Are: Facebook for Beginners.

Internet Marketing And The Participation Age (Web 2.0) Dan Roberts.

1. About Us 2 Social Annex spun out of Immply Group – a web development and design agency specializing in Social media, CMS, social networking and eCommerce.

Technology Social Media Unit 1. What is Social Media? Social media is the interaction among people in which they create, share or exchange information.

A Social Media Program for Dairy Advocates Introducing.

Social Media: The Basics Teresa Marks School Community Oral Health Conference Friday, October 16, 2015.

Social media. Most popular with 13 – 21 year olds. Lets you send video messages to celebrities like the Kardashians, the Janoskians and others. You can.

Integrating social media into PR Strategies by K Srinivasan Chairman, Prime Point Foundation & Editor in Chief, PreSense (Emagazine) Chennai, India 13.

Bell Ringer Activity  Pick up a graphic organizer about Social Networking  First, in your own words, explain what social media means to you (be prepared.

Social Media Tools Commandant’s National Coast Guard Retiree Council 29 April 2010.

Web 2.0 Rachel Coombes.

What does Web 2.0 mean?  Dictionary.com defines Web 2.0 as the internet as an interactive experience, rather than something to be absorbed  With web.

Top Ten Social Media Sites #10 Created in 2012 (bought out by Twitter before official launch) Short-form video service (6 second looping video clips)

Social Media What is it and How do I do it? Fulton County Public Library By Jon Gaskill.

Introduction to Social Media October 28, 2010 Green County High School Vickie Buckman.

 Smartphones – iPhone, Android, Blackberries, etc  Tablets – iPad, Android, Windows, Google, etc.  Computers Basically anything that can connect to.

How Chapters Can use Social Media Mark Storace Sacramento Chapter March 2013.

Victor PTSA Fall Forum Don’t Lose Touch With Your Teen Tuesday, October 22, 2013 – 7PM Social media is now an integral part of our every day lives. For.

Internet in 21st Century. We all use web in our daily lives, from our mobiles or coputers. However we do not realize how fast is internet getting bigger.

CREATED BY : ARCHANA L. TULSANI.  What is a Social networking site ?  Different Social networking sites(SNS)  Uses of SNS  Reasons for increasing.

Amy Randolph-Chernis. Blogging Facebook LinkedIn Twitter YouTube Social Networking!

Name: Sayyid Ali Hussein Gaabane

Social Media Basics for Parents

Generative Model To Construct Blog and Post Networks In Blogosphere

The American Legion & Social Networking

The likelihood of linking to a popular website is higher

Social Media Safety.

Presentation transcript:

TDTS21: Advanced Networking Lecture 8: Online Social Networks Based on slides from P. Gill Revised 2015 by N. Carlsson

What are (online) social networks? 2  Social networks are graphs of people  Graph edges connect friends  `Friend’ has different implications  How hard is it to be Facebook `friends’?  Online social networking  Social network hosted by a Web site  Friendship represents shared interest or trust  Online friends may have never met

What are online social networks used for? 3  Popular for sharing content  Photos (Flickr), videos (YouTube), blogs (LiveJournal), profiles (Facebook, Orkut)  Fixed broadband (Sandvine Q1 2014) YouTube 5.5% upload, 13.2% down Facebook 2.2% upload, 2.0% down  Popular with users on the go  Mobile (Sandvine Q1 2014) YouTube 3.8% up, 17.6% down Facebook 27.0% up, 14.0% down

Why are social networks interesting? 4  Popular way to connect  Estimated 1.32B users online each day  Average American spends 40 minutes/day on the site  Changing the flow of information  Formerly few ``writers’’ many ``readers’’ online  Now anyone can write!  What does this mean for Internet traffic?  Important in regions with strict media controls  E.g., Iran, Egypt using social media platforms to get word out in times of unrest  Useful in times of disaster

Notable incidents … 5

Not just a social phenomenon… 6 Facebook now contains photo and video  Content delivery challenges! YouTube is a large fraction of Google’s traffic! Understanding properties of these networks is important to understand how we build systems to support them!

7

A few words about “Rich get richer” and “Preferential attachment” 8

A few chirps about Twitter 9  … by Krishnamurthy, Gill, and Arlitt

Aside: User relationships on Twitter  Acquaintances  Similar number of followers and following  Along the diagonal  Green portion is top 1- percentile of tweeters 14

Aside: User relationships on Twitter  Broadcasters  News outlets, radio stations  No reason to follow anyone  Post playlists, headlines 13

Aside: User relationships on Twitter  Miscreants?  Some people follow many users (programmatically)  Hoping some will follow them back  Spam, widgets, celebrities (at top) 15

Aside: User relationships on Twitter 13 Twitter noticed the miscreants… … enacted the 10% rule (you can follow 10% more people than follow you)

Evolution of an Online Social Aggregation Network: An Empirical Study 14  by Garg et al.

 An online social service aggregator  A glimpse into service popularity and usage (although some bias)  Link formation:  Can preferential attachment explain link formations? Any impact of node age?  What influence does factors such as proximity and group affiliation have in link formations? 15 [Garg et al. IMC ‘09]

D A C B B follows C B is follower of C C is friend of B 16 [Garg et al. IMC ‘09]

Preferential Attachment (PA)  Does PA explain the observed data ?  p i proportional to k i α  For source node selection (Out-degree, α = 0.8)  For destination node selection (In-degree, α = 0.9) C C A A B B 17

 We considered subscription to common services as an indicator of common interest. Group Affiliation & Link Formation Source nodes younger than 50 days 18

19

OSNs: Wrap up 20  Many different types of OSNs  Photos, video, profile-based  Some extremely popular source of much Internet traffic  Facebook, YouTube  New ones emerging  Instagram, snapchat  Old ones fading  MySpace, Friendster  Studying their properties can inform how we build networks and systems to support them!