MPRESS MPRESS and the role of and the role of MetaData in Math - - PowerPoint PPT Presentation

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MPRESS MPRESS and the role of and the role of MetaData in Math in Math- -Net Net MetaData y Roland Schwnzl y roland@mathematik.uni-osnabrueck.de Content Content y MPRESS - history/present y Organizational Structure of Math-Net y Services

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MPRESS MPRESS

and the role of and the role of

MetaData MetaData in Math in Math-

Net

y Roland Schwänzl

y roland@mathematik.uni-osnabrueck.de

SLIDE 2

Content Content

yMPRESS - history/present yOrganizational Structure of Math-Net yServices in Math-Net yUnderlying infrastructure yLast Years Work yIssues

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...where it started ...where it started

y 1992-1995 DMV Projekt Fachinformation

(database MATH)

y1995 Software test

yHarvest - [IETF-RD] ydistributed sources, agent yreplicable yclusters

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html html Meta Meta Tag Tag

y MathN Broker

Harvesting Mathematics Judith Plümer, Roland Schwänzl Euromath Bulletin 2 No.1 1996

http://www.emis.de/epub/harvest.ps.gz

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DublinCore DublinCore and Warwick Framework and Warwick Framework

y1996 AK - Technik DMV y

AK - Inhalt DMV

yWarwick Container interpreted as DublinCore

with Qualifiers

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MetaData creation tool MetaData creation tool

yMMM yalso used in PhysNet (mediated by IuK)

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1996

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DC.subject MathDMV.KEYWORDS DC.subject (type=topic) MathDMV.SUBJECT DC.subject (scheme=msc91, type=primary) MathDMV.PCLASS DC.subject (scheme=msc91, type=secondary) MathDMV.SCLASS DC.subject (scheme=pacs) MathDMV.PACS DC.subject (scheme=cr) MathDMV.CR DC.description (scheme=url, type=abstract) MathDMV.ABSTRACT DC.description (scheme=url, type=x-notes) MathDMV.NOTES

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Dublin Dublin Core Core 4 4

yCanberra, March 1997 yDC accepts qualifiers

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MathNet Project MathNet Project 1997 1997-

1998

1998

y ZIB Berlin y TU Chemnitz y U Halle y U Kaiserslautern y U Köln y TU München y U Osnabrück y U Paderborn y U Rostok y

distributed system: nodes: Math-Dept´s

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AK Meta AK Meta IuK IuK

yOsnabrück, 1997

y http://www.mathematik.uni-osnabrueck.de/projects/workshop97/

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y

Feb 1998

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MetaData Vocabulary MetaData Vocabulary

yMath-Net Page: names Genre´s of objects yPreprints yPersons yEvents yProjects ySoftware y

MetaData vocabularies based on DC

y

more qualifiers

y

more services

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IMU IMU

y

CEIC Workshop

y

ZIB Berlin, Nov 1998

y D.Morrison/Physics e-print: LANL

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y y

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MPRESS MPRESS today today

yabout 40 000 papers yabout 110 sources, gatherers, brokers

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Internationalization of Math Internationalization of Math-

Net

yInternational Mathematical Union yIMU Charta May 2000 yIMU Committee on Electronic Information and

Communication

y http://www.ceic.math.ca

yMath-Net Technical Advisory Board, http://www.mathematik.uni-osnabrueck.de/TAB/

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MetaData architecture MetaData architecture? ?

y diverse object types y coverage of dc15 y object linking y transition between services (texts and facts) y internationalization (label) y deficits with HTML Meta y(grouping problems, 1:1) y terms & conditions y annotation of MetaData y semantic network

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Carmen Project 1999 - 2002

yMetaData

xdocument/service description xformal identification xauthentication xterms and conditions/archiving xlinking

yHeterogeneity yRetrieval

y http://www.mathematik.uni-osnabrueck.de/projects/carmen/ y

Sustainability

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CARMEN CARMEN

y Digitale Signaturen & Metamaker mit Dokumentenupload für ein

verteiltes Informationssystem TU München, U Oldenburg

y Metadaten für Terms & Conditions/Metadaten für Archivierung

SUB Göttingen, TU München, Springer-Verlag

y Persistent Identifiers & Metadata Management in Science

UB Oldenburg, Deutsche Bibliothek, FIZ Karlsruhe

y Metadata based Indexing of Scientific Resources

U Osnabrück, Springer-Verlag, UB Osnabrück

y A Document Referencing and Linking System

U Dortmund, ZIB Berlin, UOsnabrück

y Fachübergreifende Informationssysteme

U Oldenburg, UOsnabrück

y Heterogenitätsbehandlung

IZ Soz - U Koblenz, U Osnabrück

y Konkordanz von Klassifikationen und Thesauri

UB Regensburg IZ Soz - U Koblenz,Deutsche Bibliothek

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has Author

RDF RDF -

W3C Rec Rec 22 Feb 1999 22 Feb 1999

yassertions:

http://www.math.uos.de

alpha

S P O

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Why RDF Why RDF

yContainer: Bag, Seq, Alt yRepeate yReification yLabeled directed graphs - not just trees ysubClasses, subProperties: prepares for higher

layers

yExtensability

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RDF: RDF: machine understandable semantics

machine understandable semantics

yPart of semantic web initiative W3 yCapability to encode semantic nets on the web yWhy use a standard...why not proprietory

solutions:

yWorldwide System, Costs for tool development,

interoperability with/of independently operated resources.

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Use of RDF Use of RDF

yExists embedding of Qualified DublinCore yOpen for special needs, extensions: eventually

implements the DC Warwick Framework.

ySimple way of integrating distributed sources of

classification/thesauri like structured vocabularies

yMathematical Resources.... yWe don´t know all - can name a few Classes yExtensability

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MetaData MetaData in Math in Math-

Net

yRDFS/XML Namespaces yApplicationProfiles: Abstraction of MetaData

y (http://www.iwi-iuk.org/material/RDF/1.1/profile/MNPage/)

yMetaData creation Tools for specific object types: yPreprints (Version 3.0), Persons, yInstitutions (Math-Net Page)

y (http://www.mathematik.uni-osnabrueck.de/TAB/meta/applic.shtml)