CYCLADES
An Open Collaborative Virtual Archive Environment
Umberto Straccia
straccia@iei.pi.cnr.it
IEI-CNR (Italy)
February, 2001
1
Outline
Project Overview
 Project Activities and Responsibility
 Project Schedule

February, 2001
2
Project Overview
February, 2001
3
(Preliminary: the scenario)
Search &
Browse
Information
sources
User
DIGITAL
ARCHIVE
1
Communities/Groups
of users
DIGITAL
ARCHIVE
2
DIGITAL
ARCHIVE
n
Large, heterogeneous, multidisciplinary digital archives
distributed over the Web
February, 2001
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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
February, 2001
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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
February, 2001
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CYCLADES
The Digital Archives
 CYCLADES functionality
 CYCLADES architecture

February, 2001
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The Digital Archives

CYCLADES will provide access to the Digital Archives
compliant with the Open Archive Initiative
February, 2001
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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
February, 2001
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OAI: list of some compliant data providers
ArchiveID
Description
arXiv
clinmed
CSTC
physics, mathematics, non-linear systems and computer science
Clinical Medicine and Health Research Netprints
Computer Science Teaching Center
Digital library of peer-reviewed teaching resources for computer science educators
HUBerlin
NACA
Humboldt University at Berlin/Germany Document Server
NACA Technical Report Server
Scanned reports of the National Advisory Committee for Aeronautics (1917-1958);
the predecessor organisation to NASA.
NCSTRL
NDLTD
WCR
Networked Computer Science Technical Reference Library
Networked Digital Library of Theses and Dissertations
Web Characterisation Repository
database of meta-information relating to trace files, tools and publications that are
relevant to characterisation of the World Wide Web
February, 2001
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OAI specs: some functionality

List Identifiers
 List Records
 Get Record
– Example
http://arXiv.org/oai1?verb=GetRecord&metadataPrefix=oai_d
c&identifier=oai:arXiv:cond-mat/0006408
February, 2001
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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
February, 2001
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CYCLADES: as a service provider
CYCLADES Virtual Archive Environment
Common
Interface
Archive1
Common
Interface
Archive2
OAI Archives
...
service provider
Common
Interface
data providers
ArchiveN
Large, heterogeneous, multidisciplinary digital archives
February, 2001
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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
February, 2001
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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
VC2
VC1
VC3
Exported data
Common
Interface
Archive1
February, 2001
Common
Interface
Archive2
OAI
Archives
Common
Interface
ArchiveN
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Search & Browse (roughly)

Search: typical Search using the virtual collection’s
search fields (e.g. author, title, abstract)

Query formulation through browsing
Search
VirtualCollection = “Logic”,
Author = “Straccia”,
Abstract = “Fuzzy Logic”
February, 2001
Browse
Schema
Attribute
Author
Castelli
Straccia
Abstract
Thanos
Title
...
...
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Personalization (roughly)
Umberto’s
folder
Digital
Libraries
Logics for
Uncertainity and
Imprecision
Information
Retieval



Fuzzy Logic
Possibilistic Logic
Probabilistic Logic
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, …
Based on BSCW
(Basic Support for
Cooperative Work)
VC
To be read
Very interisting doc
http://infohunter.iei.pi.cnr.it
February, 2001
Shared working space
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Recommendation (roughly)

The user is automatically notified about new data that
the system judges relevant
User prefs
+
February, 2001
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
February, 2001
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Users
Cyclades
Mediator
Service
Recommendation
Service
Query & Browse
Service
Personalization
Service
Collaborative Work
Service
EU
Side
Collection Service
Access Service
Common
Interface
Archive1
February, 2001
Common
Interface
Archive2
OAI
Archives
Common
Interface
ArchiveN
US
Side
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Project Activities and
Responsibilities
February, 2001
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WP1: User Requirements
T1.1 Collection
T1.2 Analy sis
FORTH
WP2: System Specification
T2.1: Func tional Spec
T2.2: Architectural Spec
UNIDO
WP3: System Development
T3.1: Mediator Servic e
T3.2: Acces s Service
T3.3: Collection Servi ce
T3.4: Personalis ation Servi ce
T3.5: Recom mendation Servi ce
T3.6: Collaborati ve Work Service
T3.7: Query&Browse Service
CNR
WP4: Integration&Testing&Revision
T4.1: System Integration
T4.2: System Testi ng
T4.3: System Revi sion
GMD
W5: System Validation
T5.1 Perform ance Eval uation
UNIDO
WP6: System Experimentation
T6.1: Exp.1, within ERCIM
T6.2: Exp. 2, ,within DELOS (NoE)
GMD
WP7: Dissemination&Exploitation
T7.1: Dissemination
T7.2: Exploitation Planning
CNR
WP8: Cyclades-Oai Coordination
T8.1: Monitoring the Oai progres ses
CNR
WP9: Project Management
T9.1: Tec hnic al Management
T9.2: Administrati ve Management
ERCIM
February, 2001
FORTH
FORTH
UNIDO
UNIDO
FORTH
UNIDO
CNR
CNR
GMD
GMD
UNIDO
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Project Schedule
February, 2001
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1.2.2001 - 31.7.2001
Y1/ 1
WP1
Us er Requirements
T1.1 User Requirements Collection
T1.2 User Requirements Analysis
WP2
System Specification
T2.1 Functional Specification
T2.2 Architectural Specification
WP3
System Development
T3.1 Mediator Service
T3 .2 Access Service
T3.3 Collection Service
T3.4 Personalisation Service
T3.5 Recommendation Service
T3.6 Collaborative Work Service
T3.7 Query & Browse Mediator Service
WP4
System Integrating, Testing, Revision
T4.1 System Integration
T4 .2 Syst em Test ing
T4.3 System Revision
WP5
System Valida tion
T5.1 System Performance Evaluation
WP6
System Ex perimentation
1.2.2001 - 31.7.2003
Y1/ 2
Y2/ 1
Y2/ 2
Y3/ 1
T6.1 IT Conso rtium Exp erimentation
T6.2 NoE Ex perimentation
WP7
Dissemination & Exploitation
T7 .1 Disseminati on
T7.2 Exploitation Planning
WP8
CYCLADES -OAi Coordination
T8.1 CYCLADES-OAi Coordination
WP9
Project Manageme nt
T8 .1 Scient ifi c Management
T8.2 Administrative Management
February, 2001
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