Web 2.0 e oltre:presente e futuro dellarivoluzione di Internet

Marco RonchettiUniversità di Trento

The machine is us(ing us)

(Video)

http://www.youtube.com/watch?v=6gmP4nk0EOE

Hypertext can link

Link

Memex

VannevarBush

Link

MemexIpertesti

Link

MemexIpertesti

+Internet

=World Wide Web

La Web

Protocollo di comunicazione (HTTP)

La Web

Protocollo di comunicazione (HTTP)Linguaggio di markup (HTML)

(view source)

Forma e contenuto possonoessere separati.

XML

mashups www.google.com/ig

Comunica!

E-mail (1961 MIT , 1971 ARPANET) BBS-Forum (1978) Chat (mid 1990s) Audio-video conferencing

Skype (2003)

Collabora!

Wiki (1995)

Wikipedia

Pubblica!

Blog (blogger…) 1994Foto (flickr…) 2004Video (youtube…) 2005

What are Blogs?Web + Logs = BlogsWeb Pages

Automated updating Reverse chronological postings May accommodate responses

Internet-specific phenomenonIncomplete index of blogs

http://blogdex.media.mit.edu/

I Blog cambiano il mondo

Puoi avere impatto!

Pubblica videohttp://it.youtube.com/

http://www.videomarta.com/

Mescola

http://pipes.yahoo.com/pipes/

http://www.weatherbonk.com/

Condividi

Condividi (Sharing Presentations)

And even more sites!

“free Web-based alternative to PowerPoint.Create & edit Flash presentations online.Send presentations via e-mail or publish onyour Web site or blog”

Synch uploaded video withyour PowerPoint

Condividi (Sharing Documents)

24/7 anytime, anywhereaccess to projects orassignments – extendsschool day

24Source: http://workgroups.cwrl.utexas.edu/visual/files/TRINITY-COLLEGE-LIBRARY-DUB.jpg

Cataloga

Ricerca “ a forza bruta”Catalogazione mirata

26

Why Library Card Catalogs?

Source: http://content.cdlib.org/ark:/13030/kt1489q7c9/?brand=calisphere

Source: http://w

ww

.library.upenn.edu/exhibits/pennhistory/library/cards/cards.samples.htm

l

Cataloga

TassonomieFolksonomies

www.del.icio.us

Web 2.0

La spinta tecnologica

The machine is using us?

The question of whether Machines CanThink ... is about as relevant as thequestion of whether Submarines CanSwim.

Il turco meccanico

ask ville

The machine is using us

http://images.google.com/imagelabeler/

“human computing”

The machine is using us

La macchina siamo noi!

Nuove interfacce utente

Needle - Università di Trento

Dov'e' il mio computer?http://www.eyeos.info/

http://labs.powerset.com/powermouse

Scientific American,

May 2001:

“... a goal of the Web was that, if the interaction between person andhypertext could be so intuitive that the machine-readable informationspace gave an accurate representation of the state of people's thoughts,interactions, and work patterns, then machine analysis could become avery powerful management tool, seeing patterns in our work and facilitatingour working together through the typical problems which beset themanagement of large organizations.”

What is the Problem? Consider a typical web page:

Markup consistsof: rendering

information(e.g., font sizeand colour)

Hyper-links torelated content

Semantic contentis accessible tohumans but not(easily) tocomputers…

What information can we see…WWW2002The eleventh international world wide web conferenceSheraton waikiki hotel, Honolulu, hawaii, USA7-11 may 2002, 1 location 5 days learn interactRegistered participants coming fromaustralia, canada, chile denmark, france, germany, ghana, hong kong,,

norway, singapore, switzerland, the united kingdom, the unitedstates, vietnam, zaire

Register nowOn the 7th May Honolulu will provide the backdrop of the eleventh

international world wide web conference. This prestigious event..Speakers confirmedTim berners-leeTim is the well known inventor of the Web, …Ian FosterIan is the pioneer of the Grid, the next generation internet …

What information can a machinesee…

An example RDF Schema

Writer hasWritten Book

FamousWriter

/twain/mark ../ISBN00010475

Schema(RDFS)Data(RDF)

hasWrittentype

subClassOf

domain range

type

Annotation of WWW resources and semantic links

Ontology - Computer Science

Rudi Studer(98)

Abbiamo bisogno…

… di partecipazione… di idee nuove… della capacità di realizzarle… di immaginare… di innovare

Abbiamo bisogno…

… anche di te!

Abbiamo bisogno…

Laurea in Informatica a Trentohttp://www.disi.unitn.it/edu

Did you know?

http://www.youtube.com/watch?v=pMcfrLYDm2U