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Sharable Information Workspace

Sharable Information Workspace. William Lee Computer Science University of Illinois at Urbana-Champaign. Motivation. P2P offers a powerful platform to share information More effective usage of bandwidth Services can be more decentralized Currently usage limits to file sharing

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Sharable Information Workspace

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  1. Sharable Information Workspace William Lee Computer Science University of Illinois at Urbana-Champaign

  2. Motivation • P2P offers a powerful platform to share information • More effective usage of bandwidth • Services can be more decentralized • Currently usage limits to file sharing • Difficult to manage information within a community • Hard to organize personal web pages, blogs, and sharable files • Access control hard to enforced • What about accessing the deep web?

  3. Information Lifecycle Community Ada Private Information publish produces Personal P2P Gateway Change status publish Public Information share retrieve/contribute information Bob Private P2P Subnet Jane Public P2P Network P2P Network

  4. Information Workspace • Jane’s desktop can be managed by a personal agent (P2P Gateway) • Private information • Encrypted and distributed to the private P2P subnet • Access is enforced through a smart distributed access control system within the P2P subnet • Can invite any individual to join the subnet • Public information • Shared among all P2P clients • Access control not enforced

  5. Advantages • Efficient use of computing resources • Can access private information securely everywhere, as long as one can log into the private P2P networks • Information is easily sharable among people in the subnet • Each private P2P network can provide services such as searching and mining on member’s shared information

  6. Possible Services within a P2P Subnet • Entity linking and ontology creation • Link entities within a subnet with triplets like (entityA, relationship, entityB) • Producer of the information can be identified easily • Certain ontology can be inferred by user action (e.g. Access to another’s research paper in the subnet implies “citing”) • Expert ranking / Interest Finding • Based on the documents within the subnet, find the experts of a subject or people who share common interests

  7. The 10-Million-Dollars Question • 50% on distributed access control and file sharing systems • 50% on distributed information access services

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