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CYCLADES An Open Collaborative Virtual Archive Environment

CYCLADES An Open Collaborative Virtual Archive Environment. Umberto Straccia straccia@iei.pi.cnr.it IEI-CNR (Italy). Outline. Project Overview Project Activities and Responsibility Project Schedule. Project Overview. User. Communities/Groups of users. (Preliminary: the scenario).

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CYCLADES An Open Collaborative Virtual Archive Environment

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  1. CYCLADESAn Open Collaborative Virtual Archive Environment Umberto Straccia straccia@iei.pi.cnr.it IEI-CNR (Italy)

  2. Outline • Project Overview • Project Activities and Responsibility • Project Schedule

  3. Project Overview

  4. User Communities/Groups of users (Preliminary: the scenario) Search & Browse Information sources DIGITAL ARCHIVE 1 DIGITAL ARCHIVE 2 DIGITAL ARCHIVE n Large, heterogeneous, multidisciplinary digital archives distributed over the Web

  5. Project Goal • Individual users • Communities/Groups of users Development of an open collaborative virtual archive environment supporting interacting with • Large, heterogeneous, multidisciplinary digital archives distributed over the Web

  6. Logical View Communities/Groups of users User CYCLADES Virtual Archive Environment DIGITAL ARCHIVE 1 DIGITAL ARCHIVE 2 DIGITAL ARCHIVE n ... Large, heterogeneous, multidisciplinary digital archives distributed over the Web

  7. CYCLADES • The Digital Archives • CYCLADES functionality • CYCLADES architecture

  8. The Digital Archives • CYCLADES will provide access to the Digital Archives compliant with the Open Archive Initiative

  9. the Open Archives Initiative • Agreement between several Digital Archives in order to provide interoperability • The specs give data providers(individual archives) easy-to-implement mechanisms for making the documents’metadatain their archives externally available • This external availability then makes it possible for service providers to build higher levels of functionality http://www.openarchives.org FOR MORE INFO...

  10. OAI: list of some compliant data providers ArchiveID Description arXivphysics, mathematics, non-linear systems and computer science clinmedClinical Medicine and Health Research Netprints CSTC Computer Science Teaching Center Digital library of peer-reviewed teaching resources for computer scienceeducators HUBerlinHumboldt University at Berlin/Germany Document Server NACA NACA Technical Report Server Scanned reports of the National Advisory Committee for Aeronautics (1917-1958); the predecessor organisation to NASA. NCSTRLNetworked Computer Science Technical Reference Library NDLTD Networked Digital Library of Theses and Dissertations WCRWeb Characterisation Repository database of meta-information relating to trace files, tools and publications that are relevant to characterisation of the World Wide Web

  11. OAI specs: some functionality • List Identifiers • List Records • Get Record • Example http://arXiv.org/oai1?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:arXiv:cond-mat/0006408

  12. Header: Identifier : oai:arXiv:cond-mat/0006408 Datestamp : 2001-01-31 Metadata: oai_dc: title: Charge-ordering phase transition and order-disorder effects in the Raman spectra of NaV2O5 creator: Konstantinovic, M. J. creator: Isobe, M. creator: Ueda, Y. subject: Strongly Correlated Electrons; Disordered Systems and Neural Networks description: In the ac polarized Raman spectra of NaV2O5 we have found anomalous phonon broadening, and an energy shift of the low-frequency mode as a function of the temperature. These effects are related to the breaking of translational symmetry, caused by electrical disorder that originates from the fluctuating nature of the V {4.5+} valence state of vanadium. The structural correlation length, obtained from comparisons between the measured and calculated Raman scattering spectra, diverges at T< 5 K, indicating the existence of the long-range charge order at very low temperatures, probably at T=0 K. date: 2000-06-26 type: e-print identifier: http://arXiv.org/abs/cond-mat/0006408

  13. CYCLADES Virtual Archive Environment service provider Common Interface Common Interface Common Interface OAI Archives ... data providers ArchiveN Archive2 Archive1 Large, heterogeneous, multidisciplinary digital archives CYCLADES: as a service provider

  14. Functional View Communities/Groups of users User Search&Browse Personalization Collaboration Recommendation CYCLADES Virtual Archive Environment Virtual Collection DIGITAL ARCHIVE 1 DIGITAL ARCHIVE 2 DIGITAL ARCHIVE n ... Large, heterogeneous, multidisciplinary digital archives

  15. Common Interface Common Interface Common Interface ArchiveN Archive2 Archive1 OAI Archives Virtual Collections (roughly) • Virtual Collection: a set of metadata records collected together, according to some criteria, from the archives + set of functionality over records Virtual Collection VC1 VC2 VC3 Exported data

  16. Search & Browse (roughly) • Search: typical Search using the virtual collection’s search fields (e.g. author, title, abstract) • Query formulation through browsing Browse Search Schema Attribute VirtualCollection = “Logic”, Author = “Straccia”, Abstract = “Fuzzy Logic” Author Abstract Title ... Castelli Straccia Thanos ...

  17. Information Retieval Umberto’s folder Digital Libraries Fuzzy Logic Logics for Uncertainity and Imprecision Possibilistic Logic Probabilistic Logic Personalization (roughly) • User topics of interest maybe managed similarly to e-mail folders • Service learns the user information needs automatically • New data is classified into the right topic folder automatically

  18. Collaboration (roughly) • A shared working space can be created by groups referencing: • user documents • a virtual archive • recommendations, related links, annotations, ratings, … VC Based on BSCW (Basic Support for Cooperative Work) To be read Very interisting doc http://infohunter.iei.pi.cnr.it Shared working space

  19. Recommendation (roughly) • The user is automatically notified about new data that the system judges relevant User prefs Group prefs + = Recommendation

  20. CYCLADES: Architecture (starting point) • Modular • Basic functionality are allocated on servers • Distributed • Servers maybe over the Web • Open • new services can easily be added

  21. Cyclades Mediator Service Collaborative Work Service Recommendation Service Query & Browse Service Personalization Service Collection Service EU Side Access Service Common Interface Common Interface Common Interface ArchiveN Archive2 Archive1 US Side Users OAI Archives

  22. Project Activities and Responsibilities

  23. Project Schedule

  24. 1.2.2001 - 31.7.2001 1.2.2001 - 31.7.2003

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