cutter-bender1-out - 株式会社レザックTitle cutter-bender1-out Created Date 3/10/2011 1:04:55 PM
Matthias Bender1 Why P2P Sucks… Matthias Bender D5 – Databases and Information Systems...
-
Upload
hilary-morris -
Category
Documents
-
view
212 -
download
0
Transcript of Matthias Bender1 Why P2P Sucks… Matthias Bender D5 – Databases and Information Systems...
1Matthias Bender
Why P2P Sucks…
Matthias Bender
D5 – Databases and Information SystemsMax-Planck-Institut für Informatik
CIDR 2007Asilomar, CA
2Matthias Bender
Why P2P Sucks…… at least a bit
Matthias Bender
D5 – Databases and Information SystemsMax-Planck-Institut für Informatik
CIDR 2007Asilomar, CA
Why P2P Sucks... at least a bit 3Matthias Bender
Where is P2P?
P2P has been around for years
(Generations of) Researchers have worked on
P2P…
… and tackled some problems we wouldn‘t have had without them
…
P2P matured and ready-to-use?!?
.
Why P2P Sucks... at least a bit 4Matthias Bender
Where is P2P?
P2P has been around for years
(Generations of) Researchers have worked on P2P…
… and tackled some problems we wouldn‘t have had without them …
P2P matured and ready-to-use?!?
But: Somehow P2P not catching on in the „real“
world
Perception still dominated by early file-sharing systems, e.g.
Napster…
… which isn‘t even a P2P system after all…
… and has gained negative reputation
… due to legal issues (P2P = Pirate-to-Pirate)
Why P2P Sucks... at least a bit 5Matthias Bender
The Quest for the „Killer Application“
P2P Sales Pitch – No central entity, privacy,
anonymity, …
Service Providers: not really intriguing as a business model
If nobody „offers“ it, people need to run it themselves…
P2P Showcase: Web Search
Users: Google is doing a pretty good job…
Why P2P Sucks... at least a bit 6Matthias Bender
The Quest for the „Killer Application“
P2P Sales Pitch – No central entity, privacy, anonymity, …
Service Providers: not really intriguing as a business model
If nobody „offers“ it, people need to run it themselves…
P2P Showcase: Web Search
Users: Google is doing a pretty good job
(not only because they are sponsoring this conference…)
Missing incentive to use P2P Web Search!
Incentives and Business Model: Two sides of the same coin
Business Model is Incentive for Service Providers
Why P2P Sucks... at least a bit 7Matthias Bender
So why did file-sharing catch on?
Napster / Gnutella / Kazaa caught on because
users couldn‘t access data otherwise (at least not
for free)
Why P2P Sucks... at least a bit 8Matthias Bender
So why did file-sharing catch on?
Napster / Gnutella / Kazaa caught on because
users couldn‘t access data otherwise (at least not
for free)
Napster / Gnutella / Kazaa didn‘t last because
users couldn‘t access data otherwise (at least not
for free)
Music Industry doesn‘t like it…
Insight: Web Data is freely available – no user
incentive?!?
Why P2P Sucks... at least a bit 9Matthias Bender
So what does it mean for P2P (Search)?
P2P Killer Application requires incentives
Possible User Incentive: Improved Web Search
Experience
„Social Search“ on Intellectual Input of User Community
… that users wouldn‘t be willing to provide for commercial purposes
Wikipedia
Possible Service Provider Incentive:
non-free original data
Business Peers run network in order to sell their data…
… they would be willing to give out for indexing otherwise