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Peer-to-Peer Knowledge Sharing. David Wolber. Associative Thinking Assistant. Motivation. Desktop is outdated Digital libraries abound, but no tools (INFORMATION OVERLOAD) Avoiding a Googleopoly Peer-to-peer is a great new model, but sharing knowledge is hard. Sneak Preview.

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Peer to peer knowledge sharing l.jpg

Peer-to-Peer Knowledge Sharing

David Wolber

USF Department of Computer Science



Associative thinking assistant l.jpg
Associative Thinking Assistant

USF Department of Computer Science


Motivation l.jpg
Motivation

  • Desktop is outdated

  • Digital libraries abound, but no tools

    (INFORMATION OVERLOAD)

  • Avoiding a Googleopoly

  • Peer-to-peer is a great new model, but sharing knowledge is hard.

USF Department of Computer Science


Sneak preview l.jpg
Sneak Preview

  • Develop webtop, not desktop tools

  • A common search API and registry

  • Zero-input publishing

  • Open PC Movement

USF Department of Computer Science


Today s desktop l.jpg
Today’s Desktop

BookMark File Manager Hyper-LinksManager

WebSphinx (Miller, Bharat)

USF Department of Computer Science


Desktop tools are outdated l.jpg
Desktop tools are outdated

  • Filing cabinet metaphor no longer fits

  • Unnecessary barrier between local system and web

  • Computer is a communication tool, a node in the knowledge base of the world

USF Department of Computer Science


I see the documents where are the people l.jpg
I see the documentsWhere are the people?

USF Department of Computer Science


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Motivation

  • Desktop is outdated

  • Digital libraries abound, but no tools

    (INFORMATION OVERLOAD)

  • Avoiding a Googleopoly

  • Peer-to-peer is a great new model, but sharing knowledge is hard.

USF Department of Computer Science


Information sources l.jpg
Information Sources

  • Google, Amazon, etc.

  • History: Way-back machine

  • Technorati– The World Live Web

  • Domain Specific:

    • ACM Digital Library

    • Citeseer

    • MLA for literature

USF Department of Computer Science


Www technorati com l.jpg
www.technorati.com

USF Department of Computer Science


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CiteSeer: http://citeseer.ist.psu.edu/

USF Department of Computer Science


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ACM

USF Department of Computer Science


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Internet Archive, Wayback

USF Department of Computer Science


They all provide similar functionality but l.jpg
They all provide similar functionality, but…

USF Department of Computer Science


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Motivation

  • Desktop is outdated

  • Digital libraries abound, but no tools

    (INFORMATION OVERLOAD)

  • Avoiding a Googleopoly

  • Peer-to-peer is a great new model, but sharing knowledge is hard.

USF Department of Computer Science


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Media Conglomeration

  • FCC lessening anti-trust laws

  • Most media now owned by a handful of companies

  • How many of us go through Google to get our information.

  • Can we trust Google to stay “good”?

USF Department of Computer Science


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Motivation

  • Desktop is outdated

  • Digital libraries abound, but no tools

    (INFORMATION OVERLOAD)

  • Avoiding a Googleopoly

  • Peer-to-peer is a great new model, but sharing knowledge is hard.

USF Department of Computer Science


Our virtual brains are modeled after our real ones l.jpg
Our Virtual Brains are modeled after our real ones

USF Department of Computer Science


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Research Tasks

Communication

Email

Blog

IM

Web page

  • Knowledge Creation

    • Bookmark

    • Create note/doc

    • Put in folder

    • Add link

USF Department of Computer Science


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The Big Question

How much of the information hidden

within your personal web is hidden due

to privacy concerns?

USF Department of Computer Science


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Source list

Associative Thinking Agent

USF Department of Computer Science


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Personal Computer 1

File System

Assoc Source

UDDI Registry

Personal Metadata

WebTop

Client

Cassini server

PW Service

WTGoogle

WTTechnorati

Personal Computer 2

WebTop

Client

Cassini server

PW Service

Personal Metadata

File System

USF Department of Computer Science


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WebTop Client

  • Tree View of results

  • Information processing on node expansion

  • Choose from dynamic list of sources

  • N-Degree Heterogeneous Associations

USF Department of Computer Science


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Associations

  • Outward Links (hyperlinks)

  • Inward Links

  • Similar Content Links

  • Collaborative filtering Links

USF Department of Computer Science


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More Associations

  • General Research: AuthorOf, collaborator, co-cited, home page of,…

  • Domain-Specific

    • Films: Acted in, Directed

    • Campaigns: Gave money to

USF Department of Computer Science


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Separate Association Types

Inward Links

Browser

Outward Links

Content-Similar

USF Department of Computer Science


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IOC Tree

IOC Tree

I --- C – O --I

Browser

USF Department of Computer Science


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Associative Source API and Registry

  • A common search/link info API

  • A central UDDI registry

  • Allows for meta-search clients with dynamic lists of sources.

    Clients can access even those sources created after the client itself.

USF Department of Computer Science


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Organizational Sources

  • Web Service Wrappers

  • Wrappers implement one or more of the Associative Source API methods

Google Web Service

WebTop Client

WTGoogleAssoc Service

USF

Google

USF Department of Computer Science


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Scenarios

  • Search within the boomarks/links/papers of an expert

  • When open one of your own papers, see newly created documents that cite it, that have similar content

  • Easily navigate paper-author trail

USF Department of Computer Science


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Nth Degree

2nd Degree

1st Degree

PersonalWeb

The Personal Web

Personal Space consists of highly interrelated files, i.e.

a personal web

The Web should be personalized to each user, i.e., a personal web.

Personal Web-- local documents and “bookmarks”

N-degree Neighborhood– can be reached with n clicks.

USF Department of Computer Science


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You can be a Search Engine

  • Personal Web Analyzer

    • In/out links between documents

    • Full-text index

    • Characteristic words

    • Person/proper names in document

  • Access between personal webs

    • Automatically installed mini-server

    • Auto-registration of web service

USF Department of Computer Science


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Connecting Personal Webs

People create knowledge-- bookmarking, annotating, linking, synthesizing-- every day.

Much of it is never communicated

USF Department of Computer Science


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Future Work

  • Automated source discovery

  • Alternative page ranking

    • Source reputation measures

    • In-links from groups of people, e.g.,

      CS Professors

USF Department of Computer Science


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Get Involved

  • http://webtop.cs.usfca.edu

  • wolber@usfca.edu

USF Department of Computer Science


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WIKIs

USF Department of Computer Science


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Lawrence Lessig’s Blog

  • http://www.lessig.org/blog/

USF Department of Computer Science


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Web Services

  • Programmatic interface to web data

  • Software agent access to data

  • Helps separate View/Model

  • More robust than “web scrapers”

  • XML/Soap

  • Rest-ful Interfaces

USF Department of Computer Science


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Web Services

  • Web services allow clients to aggregate information from various sources, process, then display in a custom fashion.

  • More robust than scraping web pages

source

GUI

client

source

USF Department of Computer Science


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XML/Soap Web Services

  • XML/Soap

  • WSDL

  • UDDI

USF Department of Computer Science


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Know more about yourself

Analysis of file system

  • Linking between documents

  • inward links

  • characteristic words of documents

  • what people are referred to

  • what web pages

USF Department of Computer Science


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