Nicolas Delaforge: Modeling the Web resource, extracting the context: stakes for digital memory.

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Modéliser la ressource web, contextualiser la référence : des enjeux pour le patrimoine numérique Philoweb’10 [email protected] r Equipe Edelweiss – INRIA Sophia Antipolis Modeling the Web Resource, extracting the context : Stakes for the digital memory

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Page 1: Nicolas Delaforge: Modeling the Web resource, extracting the context: stakes for digital memory.

Modéliser la ressource web, contextualiser la référence :

des enjeux pour le patrimoine numérique

Philoweb’[email protected]

rEquipe Edelweiss – INRIA Sophia Antipolis

Modeling the Web Resource, extracting the context : Stakes for the digital memory

Page 2: Nicolas Delaforge: Modeling the Web resource, extracting the context: stakes for digital memory.

Motivating scenario

Bookmark overload- Every day usage of bookmarks is boring- The Bookmark model hasn’t changed since Netscape- The Bookmark reference is inaccurate- BM is very difficult to reuse out of the browser

Yet, Bookmarking system is one of the main way to access WWW

(after Google of course...)

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Motivating scenario

What are people doing online ??- Looking for information

Tutorials, Wikipedia… RSS, Google alerts

- Producing information Communicating about themselves

- Doing some social activity Twitter, Facebook, Blogs, Forums,…

- Checking news about web sites or topics of interest Business Intelligence

- Using online applications or services Webmail, Google docs e-commerce, e-banking, e-administration Intranet

Different activities, Different objects,

but a single tool to organize all.

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Is that all we can do?

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Motivating scenario

Why is this technology so poor ?Why is it so difficult to design orientation tools ?

Web User Point of View

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Possible part of the answer

Once again…the technique is in advance over theory- The Web has evolved really fast- This evolution was mainly technology-driven- Lack of definitions

Mainly technical definitions are available

Questions to be answered : - What is a Web site ?- What is a Web page ?- What is behind a Web reference ?- Is the Web made of digital documents or is it a big soup of

web resources?

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Web resources are :- growing- heterogenous

Observation #1

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IPv6 : Adresses multiplication

667 x 1015 IP adresses per mm2

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Internet of Things

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RFID

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QR Codes

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Semantic WebThe Web of Data

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RDF : Identity Crisis

HTTP code 303

Source : H. Halpin, V. Presutti

Information Resourcevs.

Non Information Resource

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URI : W3C Best Practices

Source : W3C, http://www.w3.org/TR/cooluris/

Content Negociation (Conneg)

Linking Open Data (LOD)

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May 2007

April 2008

September 2008

March 2009

Linking Open Data

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Linking Open Data

September 2010

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How to avoid disorientation ?

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Web reference is unreliable

Observation #2

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HTTP 404Page not found

No Web without the 404 error code.

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Dynamic Web sites

First instability cause : A (potential) content

generation at every request

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Dynamic Web sites

Second instability cause : client scripts execution

during the reading.

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Resident Evil

« Pour être sûr que je demeure fidèle à ma résolution de ne pas accepter comme vrai rien qui ne soit pas absolument certain, j’assumerai délibérément qu’un démon tout-puissant est continuellement en train de me tromper au sujet de l’existence du monde physique, incluant même mon propre corps. »

Méditations Métaphysiques, Descartes

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Proof by Example

Capturing a web site homepage « Le Monde »

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11th October 12th October

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Documentation initiatives & Tools

Observation #3

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Private Libraries

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Web Archiving French Legal Deposit

IIPC

Wayback Machine…

Petabox – Wayback Machine

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Social Bookmarking

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Social Tagging

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Content syndication

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ScrappingWozaik Zotero

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Cartography

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The Web native documentation model is insufficient.

What do we refer ?

Observation #4

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Page based model

How to refer a web site as a whole?

Homepage

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Looks like a document but…

Is it?

Excel

Google Docs

URL

HTML Source Code

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HTML5 + Javascript new API

Web pages are becoming Web applications- Future of the web :

an open repository of Web applications ?

Yes this is a Web page !

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Hypothesis

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Building a Conceptual Framework

Assertions- Modeling the Web objects and their references will

help to design orientation solutions- Reference types can only be defined from a user

point of view

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Web Page

What it is :A Web re-presentation (of a resource state)

An Information Medium+

An Iteraction Device

What it is not : A Memory extension (Tertiary Retention) *

A Document

*this property confers a great communication reactivity (data stream ?)

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Web spaces

The Web is made of several layers

P : Pages available through HTTP.S : Web services available through HTTPD : Data available through HTTP

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Web spaces

Intersection Kind of Resources

P* Web 1.0

S* Web services for composition

D* Open Databases (RDF ou autres, sitemaps, LDAP…)

SP Web 2.0, RIA, collaborative sites, e-commerce, e-banking…

DS Connectors, Data convertors, SPARQL End points, OKKAM…

DP RDFa annotated pages (ex : OGP), Microformats, Microdata

DPS Pages « conneg ready », DBPedia

* exclusive

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Webmark : Enhanced Bookmark

Webmark, aims- To redesign the management of the references- To analyse the intentionnality of the marking- To exploit the context of the marking- To propose dedicated services according

to the kind of the marking.

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Intentionnality of the Marking

Identified kinds of marking- Content mark

interest for the content of the resource- Location mark

Interest for a place, a community- Application mark

Alias to favorite online applications- Interest Mark

The famous “I like it” or FOAF interest- Composition Mark

A service to be used later in a process

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Let’s play

What kind of reference is it ?

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Thank you for your attention

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Questions ?