distributed portals for physics
DESCRIPTION
Distributed Portals for Physics. What are Distributed Portals?. Knowledge in Physics is produced spread all over the world, even away form earth. Information is published in a distributed way Institutional Webserver Online Journals Print-only Journals - PowerPoint PPT PresentationTRANSCRIPT
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected]
the physics departments and documents network
Distributed Portals for Physics
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 2
What are Distributed Portals? Knowledge in Physics is produced spread all over
the world, even away form earth. Information is published in a distributed way
- Institutional Webserver- Online Journals- Print-only Journals
Information is available in different genres- Refereed articles- Peer-reviewed online-publications- Software- Datasets
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 3
What are Distributed Portals? Portals collect existing information form
different sources Portals present information in a common
desktop- Separation of content and layout
Distributed Portals- Collect existing content from distributed sources
(web-server)- Extract content from layout
• Meta-information required
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 4
Distributed Workforce Distributed Content
- Biggest example is the Web...
Distributed Workforce- Much more complicate
• Quality-problem• Problem of continuity• Problem of politics and interests
- Charter• Define common goals
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 5
Distributed vs. Centralised Centralised
- High information structure- Common layout- Easy navigation through the information
Distributed- Up to date information- Low budget implementation- Good information coverage
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 6
Portal
Portal
Collector
Distributed Portals – a technical view Collecting module Content extractor Portal Mirror system
Source A Source B Source C
Content extractor
Portal
?
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 7
XML-Query
Distributed Search-Engines
Search-EngineA
Search-EngineB
Search-EngineC
Search-EngineD
Common Search
SINN-Project by DFN e.V.http://www.isn-oldenburg.de/projects/SINN/
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 8
Examples of Portals in Physics PhysNet (distributed portal) ProPhysik.de (centralised portal) Fachwelt-Physik (distributed portal)
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 9
PhysNet www.physics-network.org
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 10
PhysNet www.physics-network.org Over 5.300 links of Physics Departments and
Document-Collections Service maintained in 8 countries on 4
continents Web-Sites mirrored on 10 servers all over the
world Approx. 25.000 users every month 16 members ((inter)national Physical Societies)
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 11
ProPhysik.de
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 12
Fachwelt-Physik www.fachportal-physik.de
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 13
Fachwelt-Physik Bilingual: English and German Views:
- Mozilla-based browser- Print-out version- Text-only version- Robot-optimised version with metadata
Maintained at numerous sites
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 14
Future Focuses in this Field Development and implementation of
interfaces for distributed search-engines Development of new services Continuous maintenance of running portals
the physics departments and documents network
www.physics-network.org
CRIS2002, Kassel, 29-31 Aug 2002
Thomas Severiens, [email protected] 15
Many thanks for your attention!
For additional information please visit
www.isn-oldenburg.de