social semantic web (social activity and facebook)

Social Semantic Web(Social Activity and Facebook)

Dr. Myungjin Lee

Web of Documents

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Nice web-

pages!

HTML

HTML

HTML

HTML

link

link

link

link

HTML

HTML

link

link

HTML isa language for describing web pages.

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Semantic Web

The Semantic Web is a collaborative movement led by the World Wide Web Consortium (W3C) that promotes common formats for data on the World Wide Web. By encouraging the inclusion of semantic content in web pages, the Semantic Web aims at converting the current web of un-structured documents into a "web of data".

http://en.wikipedia.org/wiki/Semantic_web

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few years ago recently

machine understandable machine processible

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Linked Data

a term used to describe a recommended best practice for ex-posing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF

machine explorablehttp://linkeddata.org/

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2007-05-01 2007-11-10 2008-09-18 2009-07-14

2010-09-222011-09-19

http://richard.cyganiak.de/2007/10/lod/

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Principle of Linked Data

1. Use URIs as names for things

2. Use HTTP URIs so that people can look up those names.

3. When someone looks up a URI, provide useful information, using the standards (RDF*, SPARQL)

4. Include links to other URIs. so that they can discover more things.

http://www.w3.org/DesignIssues/LinkedData.html

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Social Network

A social network is a social struc-ture made up of individuals (or or-ganizations) called "nodes", which are tied (connected) by one or more specific types of interdepen-dency, such as friendship, kinship, common interest, financial ex-change, dislike, sexual relation-ships, or relationships of beliefs, knowledge or prestige.

http://en.wikipedia.org/wiki/Social_network

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The web is more a social cre-ation than a technical one. I de-signed it for a social effect — to help people work together — and not as a technical toy.

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Social Web

The social Web is a set of social rela-tions that link people through the World Wide Web. The Social web encom-passes how websites and software are designed and developed in order to support and foster social interaction.

http://en.wikipedia.org/wiki/Social_web

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http://www.hitwise.com/us/datacenter/main/dashboard-10133.html

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http://www.alexa.com/siteinfo/google.com

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Information Flow

Traditional Web(like Google)

Social Network Services(Facebook, Twitter, etc.)

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Distributed and Separated Data in the Social Web

http://www.slideshare.net/Cloud/the-social-semantic-web

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If …

http://www.slideshare.net/Cloud/the-social-semantic-web

We can make better ser-

vices.

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Social Semantic Web

The concept of the Social Semantic Web subsumes develop-ments in which social interactions on the Web lead to the cre-ation of explicit and semantically rich knowledge representa-tions. The Social Semantic Web can be seen as a Web of collec-tive knowledge systems, which are able to provide useful infor-mation based on human contributions and which get better as more people participate.

http://en.wikipedia.org/wiki/Social_Semantic_Web

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Syntax Semantic

World Wide WebURIs, HTML, HTTP

Semantic WebRDFS, OWL, SPARQL

Social WebWikis, blogs, social networks

SocialSemantic WebSIOC, DBpedia, Twine

http://www.slideshare.net/Cloud/the-social-semantic-web

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What are benefits?

• to describe people, object, and connection

between them based on RDF

• semantic interoperability

• machine processible data for social applica-

tions

• rich data sources for semantic applications

• to provide better social services

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FOAF

The Friend of a Friend (FOAF) project is creating a Web of machine-readable pages de-scribing people, the links be-tween them and the things they create and do; it is a contribution to the linked in-formation system known as the Web. FOAF defines an open, decentralized technol-ogy for connecting social Web sites, and the people they describe.

foaf:Person

foaf:Person

foaf:Person

foaf:Person

foaf:Personfoaf:knows

http://www.foaf-project.org/

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More Relationships

RELATIONSHIP: A vocabulary for describing relationships be-tween peoplehttp://purl.org/vocab/relationship

spouseOfenemyOf

closeFriendOf

worksWith

livesWith

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foaf:Person

foaf:Person foaf:Person

foaf:Person foaf:Person

foaf:Personfoaf:Person foaf:Person

rel:childOf rel:mentorOf

rel:spouseOfrel:worksWith rel:friendOf

rel:siblingOf

foaf:Person foaf:Person

rel:employerOfrel:influencedBy rel:livesWith

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Social Objects

Social network theory is good at representing links between people but it doesn’t explain what connects those particular people and not others.People don’t just connect to each other. They connect through a shared object. … Good services allow people to create social objects that add value.

- Jyri Engeström -

http://www.slideshare.net/jyri/building-sites-around-social-objects-web-20-expo-sf-2009

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Social Objects that we create

• Discussions

• Bookmarks

• Annotations

• Profiles

• Microblogs

• Multimedia

http://www.slideshare.net/Cloud/the-social-semantic-web

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SIOC

Semantically-Interlinked Online Communities(SIOC) Project pro-vides methods for interconnecting discussion methods such as blogs, forums and mailing lists to each other. It consists of the SIOC ontology, an open-standard machine readable format for expressing the information contained both explicitly and implic-itly.

http://en.wikipedia.org/wiki/SIOC

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SKOS

Simple Knowledge Organization System

(SKOS)

is a family of formal languages de-

signed for

representation of thesauri, classifica-

tion

schemes, taxonomies, subject-

heading

systems, or any other type of

structured controlled vocabu-

lary.

http://en.wikipedia.org/wiki/SKOS

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http://www.slideshare.net/Cloud/the-social-semantic-web

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Lifestreaming

A Lifestream is a time-ordered stream of online / Internet activ-ity events that functions as a di-ary of your electronic life. The goal of Lifestreams is to mini-mize the time users spend man-aging their documents and elec-tronic events while increasing their ability to find and make use of this information.http://cs-www.cs.yale.edu/homes/freeman/lifestreams.html

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createshare

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aggregatingstreams

createshare

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Activity Streams

The Activity Streams project is an effort to develop an activity stream protocol to syndicate activities across social Web applications. Several major websites with activity stream implementations have already opened up their activity streams to developers to use, including Facebook and MySpace.

http://en.wikipedia.org/wiki/Activity_stream

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Actor verb object target

Myungjin Lee tweeted KSWC 2011

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Atom JSON

based on two syntaxes, and

http://activitystrea.ms/

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As you know, Atom and JSON are not based on RDF Model.

Atom JSONBut you can translate it to RDF.

It is not good idea.

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I am notthe fanatic

of Facebook.

But I agree thatFacebook is

the best SNS.No one can deny it.

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Who are my friends?

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Social Graph

The social graph describes the relationships between individuals online. It has been described as "the global mapping of every-body and how they're related".The term was popularized at the Facebook f8 conference on May 24, 2007, when it was used to explain that the Facebook Plat-form, which was introduced at the same time, would benefit from the social graph by taking advantage of the relationships between individuals, that Facebook provides, to offer a richer on-line experience.

http://en.wikipedia.org/wiki/Social_graph

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First Social Graph of Facebook in 2006

is a friend of

is a friend of

is a friend of

is a friend of

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Who are my friendsthose who like the Breaking Dawn?

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At third Facebook F8 conference on 2010

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Open Graph of Facebook in 2010

is a friend of

is a friend of

is a friend of

is a friend of

like

Social Object

like

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Social Object in the Open Graph

click “like” button

Web Page

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Social Object in the Open Graph

like

Social Object

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Open Graph Protocol

The Open Graph protocol enables developers to integrate their pages into the social graph. These pages gain the functionality of other graph objects including profile links and stream updates for connected users. It is based on RDFa.

http://developers.facebook.com/docs/opengraph/

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Example of Open Graph Protocol

<html xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml"> <head> <meta property="og:url" content="http://www.imdb.com/title/tt1285016/" /> <meta property='og:image' content='http://ia.media-imdb.com/…140_.jpg'> <meta property='og:type' content='movie' /> <meta property='fb:app_id' content='115109575169727' /> <meta property='og:title' content='The Social Network (2010)' /> <meta property='og:site_name' content='IMDb' />...

based on RDFa

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Open Graph Protocol includes …

• URL• Type• Title• Image• Short Description• Site Name• Location• Contact Information

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The Type of Object

• album• book• drink• food• game

• activity• sport

• bar• company• café• hotel• restaurant

• cause• sports_leagu

e• sports_team

• band• government• non_profit• school• university

• movie• product• song• tv_show

• actor• athlete• author• public_figure

• musi-cian

• politi-cian

• director

• city• country• landmark• state_provin

ce

• article• blog• website

Products and Entertain-ment

Activities

Businesses

Groups

Organizations

People

Places

Websites

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<html xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml"> <head> <meta property="og:url" content="http://www.imdb.com/title/tt1285016/" /> <meta property='og:image' content='http://ia.media-imdb.com/…140_.jpg'> <meta property='og:type' content='movie' /> <meta property='fb:app_id' content='115109575169727' /> <meta property='og:title' content='The Social Network (2010)' /> <meta property='og:site_name' content='IMDb' />...

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Who are my friendsthose who watch the Breaking Dawn?

cook …run …play …

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At fourth Facebook F8 conference on 2011

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Open Graph of Facebook in 2011

is a friend of

is a friend of

is a friend of

is a friend of

like

watch

watch

cook

like

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In 2010, we extended the social graph, via the Open Graph pro-tocol, to include 3rd party web sites and pages that people liked throughout the web. We are now extending the Open Graph to include arbitrary actions and objects created by 3rd party apps and enabling these apps to integrate deeply into the Facebook experience.

https://developers.facebook.com/docs/beta/

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How to build Open Graph app

• Step 1: Create a Facebook app

• Step 2: Authenticate users with the Add to Timeline

plugin

• Step 3: Define initial action, object, and aggregation in

the Dev App

• Step 4: Publish Actions for your users

• Step 5: Add Social Plugins to your app: Facepile plugin,

Activity plugin, and Recommendations plugin

• Step 6: Submit Your Actions for approvalhttps://developers.facebook.com/docs/beta/opengraph/tutorial/

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Define Actions and Objects

People can Action a Object.

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Create a Social Object

<meta property='og:type' content='me:recipe' />

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Publish a Social Action

https://graph.facebook.com/me/YOUR_NAMESPACE:cook ?recipe=OBJECT_URL&access_token=ACCESS_TOKEN

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When you click "Cook" Button, …

cookSocial Ob-ject

http://example.com/cook-ie.html

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Social Object on your Social Channel

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Open Graph Mechanics

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Meaning of Open Graph on the SSW

Facebook was launching the “Semantic Web” without calling it that. … Perhaps only Facebook, based on genuine identity, could build a real Semantic Web that centers around people and what they do.

http://www.forbes.com/sites/techonomy/2011/09/22/facebooks-changesits-all-about-the-platform/

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Mapping Vocabularies of OGP

og:title rdfs:seeAlso rdfs:label.

og:type rdfs:seeAlso rdf:type.

og:url rdfs:seeAlso foaf:page.

og:image rdfs:seeAlso foaf:depiction.

og:description rdfs:seeAlso rdfs:comment.

og:latitude rdfs:seeAlso geo:lat.

og:longitude rdfs:seeAlso geo:long.

og:email rdfs:seeAlso foaf:mbox.

og:phone_number rdfs:seeAlso foaf:phone.

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Mapping Social Objects and Actions

ObjectAction

rdfs:Class or owl:Classowl:ObjectProperty

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<owl:Class rdf:about="http://samples.ogp.me/Recipe">

<rdfs:label xml:lang="en-US">Recipe</rdfs:label>

<rdfs:seeAlso rdf:resource="http://dbpedia.org/ontology/Recipe"/>

</owl:Class>

<owl:ObjectProperty rdf:about="http://samples.ogp.me/cook">

<rdfs:label xml:lang="en-US">Cook</rdfs:label>

</owl:ObjectProperty>

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Mapping of Social Objects

Individual of it's type

<rdf:Property rdf:about="og:type">

<rdfs:label xml:lang="en-US">type</rdfs:label>

<rdfs:seeAlso rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#type"/>

<rdfs:isDefinedBy rdf:resource="http://ogp.me/ns#"/>

</rdf:Property>

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<meta property='og:type' content='me:recipe' />

<http://example.com/cookie.html rdf:type me:recipe>

Social Ob-ject

http://example.com/cook-ie.html

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cook

http://example.com/cook-ie.html

Social Ob-ject

http://www.facebook.com/mjinlee

http://example.com/cookie.html

http://samples.ogp.me/Recipe

Stuffed Cookies

me:cookrdf:type

http://example.com/zhen/cookie.jpg

The Turducken of Cookies

http://example.com/zhen/cookie.html

og:title

og:image

og:descriptionog:url

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Social Semantic Web is …

to make and providebetter services for users

based on

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We are going to change the uni-

verse.

Question

About Me

xml@yonsei.ac.kr

http://www.semantics.kr/

http://www.twitter.com/MyungjinLee

http://www.facebook.com/mjinlee

http://www.slideshare.net/onlyjiny