CYCLADES An Open Collaborative Virtual Archive Environment

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CYCLADESAn Open Collaborative Virtual Archive
Environment

• Umberto Straccia
• straccia_at_iei.pi.cnr.it
• IEI-CNR (Italy)

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Outline

• Project Overview
• Project Activities and Responsibility
• Project Schedule

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Project Overview
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(Preliminary the scenario)
Search Browse
DIGITAL ARCHIVE 1
DIGITAL ARCHIVE 2
DIGITAL ARCHIVE n
Information sources
Large, heterogeneous, multidisciplinary digital
archives distributed over the Web
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Project Goal
Development of an open collaborative virtual
archive environment supporting

• Individual users
• Communities/Groups of users

interacting with

• Large, heterogeneous, multidisciplinary digital
  archives distributed over the Web

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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
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CYCLADES

• The Digital Archives
• CYCLADES functionality
• CYCLADES architecture

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The Digital Archives

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

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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 metadata in their archives
  externally available
• This external availability then makes it possible
  for service providers to build higher levels of
  functionality

FOR MORE INFO...

• http//www.openarchives.org

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OAI list of some compliant data providers
ArchiveID Description arXiv physics,
mathematics, non-linear systems and computer
science clinmed Clinical Medicine and Health
Research Netprints CSTC Computer Science
Teaching Center Digital library of
peer-reviewed teaching resources for computer
science educators HUBerlin Humboldt 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. NCSTRL Networked Computer Science Technical
Reference Library NDLTD Networked Digital
Library of Theses and Dissertations WCR Web
Characterisation Repository database of
meta-information relating to trace files, tools
and publications that are relevant to
characterisation of the World Wide Web
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OAI specs some functionality

• List Identifiers
• List Records
• Get Record
• Example

http//arXiv.org/oai1?verbGetRecordmetadataPrefi
xoai_dcidentifieroaiarXivcond-mat/0006408

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Header Identifier oaiarXivcond-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 Tlt 5 K,
indicating the existence of the long-range charge
order at very low temperatures, probably at T0
K. date 2000-06-26 type e-print identifier
http//arXiv.org/abs/cond-mat/0006408
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CYCLADES as a service provider
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Functional View
Communities/Groups of users
User
SearchBrowse
Personalization
Recommendation
Collaboration
CYCLADES Virtual Archive Environment
Virtual Collection
DIGITAL ARCHIVE 1
DIGITAL ARCHIVE 2
DIGITAL ARCHIVE n
...
Large, heterogeneous, multidisciplinary digital
archives
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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
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Search Browse (roughly)

• Search typical Search using the virtual
  collections 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 ...
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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

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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
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Recommendation (roughly)

• The user is automatically notified about new data
  that the system judges relevant

User prefs
Group prefs


Recommendation
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CYCLADES Architecture (starting point)

• Modular
• Basic functionality are allocated on servers
• Distributed
• Servers maybe over the Web
• Open
• new services can easily be added

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Users
OAI Archives
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Project Activities and Responsibilities
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(No Transcript)
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Project Schedule
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1.2.2001 - 31.7.2001
1.2.2001 - 31.7.2003