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Unexpected
Peer-to-Peer
Massimo Ferronato
[epidemic]
http://epidemic.ws
Catania. May 28th 2003
Social sculpture
Art that can not shape society
and therefore also can not
penetrate the heart questions
of society is no art
Joseph Beuys, 1985
Massimo Ferronato [epidemic]
Internet and society
Since mid 90s Internet has become a social place
Its foundation rules haven’t helped us understanding
the way the world has used this new media
We learned that:
• We must design network technologies thinking
about the way they will be influenced by the human
behavior
• any new protocol, technology or tool we add to the
internet world will be used in a different way from
the original design
Massimo Ferronato [epidemic]
Internet peer-to-peer
• P2P is a network architecture where all
the nodes share files among the others
• It’s been famous since Napster advent (and
collapse)
• It’s very related to all the latest copyright
discussions
Massimo Ferronato [epidemic]
What’s good about peer-to-peer
• It’s a un-centric technology
• It doesn’t need leaders or any form of
control
• It’s owned by nobody
• It allows an easy sharing of files
• It promotes the idea of people to people
communication
Massimo Ferronato [epidemic]
Eccentric peer-to-peer
• Imagine a program which use the peer-to-peer
technology for sharing ideas
• Imagine it allows people to share their own
statements
• Imagine it allows people to see all the other people
statements and agree about them
• Imagine that statements to be linked to small
programs, which allow for the execution of some
actions
• Imagine the program execution is automatically
synchronized by the peer-to-peer protocol
Massimo Ferronato [epidemic]
Antimafia
• Antimafia was released at the Museum of
Applied Arts of Frankfurt on May 23rd 2002
• Antimafia is a program developed for the
Windows environment
• It’s based on the gnutella protocol
• It allows plug-in action programs
• It’s freeware
Massimo Ferronato [epidemic]
Why Windows ?
• It’s the most used operating system
• Our target customers use windows
• Antimafia is intended to be mainstream
Massimo Ferronato [epidemic]
Gnutella
• Gnutella is a peer-to-peer protocol
• We can use it freely, because its
specifications are open source
• Nobody owns it
Massimo Ferronato [epidemic]
Gnutella: what’s for
• It designed to exchange files via Internet
• All nodes are both client and server, where
clients request files and servers offer them
• To participate to a gnutella network, the
node need only the IP address of one of its
member
• No main server (as in Napster or Kazaa)
Massimo Ferronato [epidemic]
Gnutella: searching
•
•
•
•
Searching works similarly to connecting
A node sends out a search request
it is propagated through the network
each server that has matching terms
passes back its result set
Massimo Ferronato [epidemic]
Gnutella: downloading
• each server acts as a miniature HTTP web
server
• When a node finds a search result that
wants to download, it connects to the
server and requests that file
Massimo Ferronato [epidemic]
Dynamic grouping for
acting together
How is a group created on the internet
•
•
•
•
Newsgroups
Chat
Email
Web Site
Massimo Ferronato [epidemic]
How the action is synchronized
• Date / Time
• Email
• Chat
Massimo Ferronato [epidemic]
Old style activity flow
• A statement is sent using standard
technique, with comments about the
program needed for the action
• People need to understand how the
activity is meant to be executed
• People who agreed need to take care of
the activity execution at the established
time
Massimo Ferronato [epidemic]
Issues
• People could be not skilled for participate
in the proposed action
• Synchronization could be hard, and the
resulting action effect is diminished
Massimo Ferronato [epidemic]
Effects
• Real people tends to avoid participating to
online action because they are frustrated
by technical problems
• Action groups tend to be composed by
selected people, loosing the community
effect and feeling
Massimo Ferronato [epidemic]
Dynamic grouping
• Everyone agrees about one standard
interface
• The community is self established
• The action can be proposed by everyone
• No central management
• No filtering
Massimo Ferronato [epidemic]
Dynamic grouping
• Action plugin is selected from a set of
preloaded actions
• Or a new action plugin is created by one
user and automatically distributed to all
the people in the community, who agree
the statement
Massimo Ferronato [epidemic]
Antimafia: Action creation
User describes the action with :
• a statement
• an optional comment
• start time and duration
• an action plug-in from a list of the
available plug-ins
Massimo Ferronato [epidemic]
Antimafia: Action sharing
• User saves the action
• All nodes continuously search for new
actions
• The new action is found
• The action definition is downloaded
• If the user agrees the statement the plugin is downloaded (if it’s not already present
locally)
Massimo Ferronato [epidemic]
Antimafia: Action execution
• At the set start time antimafia will run the
action
• After the set duration the action will stop
• The action is saved as being executed
Massimo Ferronato [epidemic]
Eccentric The grid
• Analyzing other uses of the grid not
forecasted by his design
• Improving dynamic grouping by common
interests
Massimo Ferronato [epidemic]
[epidemic]
[epidemic] is a network based on the
alliance and cooperation of people working
in sectors as diverse as art, computer
science, anthropology, communication,
history and economy
Massimo Ferronato [epidemic]
[epidemic]
The goal of the [epidemiC] network is the
identification, the analysis and the
synthesis of phenomena that have raised
due to the intrusion of traditional culture
models by computer science based new
models of cultural behavior.
[epidemic] has been active since 2000
Massimo Ferronato [epidemic]