D4 SKOS and HIVE—Enhancing the Creation_ Design and Flow of

Document Sample
D4 SKOS and HIVE—Enhancing the Creation_ Design and Flow of Powered By Docstoc
					   D4: SKOS and HIVE—Enhancing
   the Creation, Design and Flow of
              Information



Speakers: Hollie White
           Jane Greenberg
Coordinator: Alan Keely
          What is SKOS?

2 components:
   1. Thesauri
   2. Semantic Web
  Greenberg’s vocabulary control
           continuum
           Classical view of ILS languages




<___|____|_______|______I______I______I__>
Simple       thesauri/     deeper     taxonomies   low level   full/intricate
Key word     CV            thesauri                ontologies ontologies
Lists                                              (WordNet)       (OWL)
         Thesaural identifiers
• SN     Scope Note
   – Instruction, e.g. don’t invert phrases
• USE Use (another term in preference to this
  one)
•   UF   Used For
•   BT   Broader Term
•   NT   Narrower Term
•   RT   Related Term
    Syndetic Relationships
• Hierarchical
• Equivalent
• Associative



                 5
            Hierarchical
• Level of generality – both preferred terms
• BT (broader term)
  – Robins
     BT Birds
• NT (narrower term)
  – Birds
      NT Robins


                       6
            Equivalent
• When two or more terms represent the
  same concept
• One is the preferred term (descriptor),
  where all the information is collected
• The other is the non-preferred and helps
  the user to find the appropriate term
             Equivalent
• Non-preferred term USE Preferred term
  – Nuclear Power USE Nuclear Energy
  – Periodicals USE Serials

• Preferred term UF (used for) Non-preferred
  term
   – Nuclear Energy UF Nuclear Power
   – Serials UF Periodicals
                Associative
•   One preferred term is related to another
    preferred term
•   Non-hierarchical
•   “See also” function
•   In any large thesaurus, a significant number of
    terms will mean similar things or cover related
    areas, without necessarily being synonyms or
    fitting into a defined hierarchy
                         9
             Associative
• Related Terms (RT) can be used to show
  these links within the thesaurus
  – Bed
     RT Bedding
  – Paint Brushes
     RT Painting
  – Vandalism
       RT Hostility
  – Programming
        RT Software
SKOS: Simple Knowledge
 Organization Systems
        XML
          RDF
            OWL
              SKOS
           Markup Languages
“is a system for annotating a text in a way which is
   syntactically distinguishable from that text.”

Using tags:

<tag>content to be rendered</tag>

Or a keyword in brackets to distinguish texts

--from Wikipedia
         Descriptive Markup
“the markup is used to label parts of the
   document rather than to provide specific
   instructions as to how they should be
   processed. The objective is to decouple the
   inherent structure of the document from any
   particular treatment or rendition of it. Such
   markup is often described as "semantic".
--from Wikipedia
                   XML
Extensible Markup Language
--Created by the World Wide Web
  Consortium (W3C).
--Used to mark up documents on the
  internet or electronic documents.
--Users get to describe the tags that are
  used and define how they are used.
         NBII in XML
<CONCEPT>
   <DESCRIPTOR>Zygotes</DESCRIPTOR>
   <UF>Ookinetes</UF>
   <BT>Ova</BT>
   <NT>Oocysts</NT>
   <RT>Hemizygosity</RT>
   <RT>Reproduction</RT>
   <RT>Zygosity</RT>
   <SC>ASF Aquatic Sciences and Fisheries</SC>
   <SC>LSC Life Sciences</SC>
   <STA>Approved</STA>
   <TYP>Descriptor</TYP>
   <INP>2007-08-14</INP>
   <UPD>2007-08-14</UPD>
</CONCEPT>
                     RDF
Resource Description Framework
“is a family of World Wide Web
   Consortium (W3C) specifications originally
   designed as a metadata data model. It has
   come to be used as a general method for
   conceptual description or modeling of
   information that is implemented in web
   resources, using a variety of syntax formats”
--from Wikipedia
                   OWL
Web Ontology Language
--knowledge representation language for
  displaying ontologies working with logic
             SKOS
• Family of languages used to describe
  thesauri, controlled vocabulary,
  subject headings, and taxonomies.
               NBII in SKOS/RDF
<rdf:Description rdf:about="http://thesaurus.nbii.gov/nbii#Zygotes">
    <rdf:type
    rdf:resource="http://www.w3.org/2004/02/skos/core#Concept"/>
    <skos:inScheme
    rdf:resource="http://thesaurus.nbii.gov/nbii#conceptScheme"/>
    <skos:altLabel>Ookinetes</skos:altLabel>
    <skos:broader rdf:resource="http://thesaurus.nbii.gov/nbii#Ova"/>
    <skos:narrower rdf:resource="http://thesaurus.nbii.gov/nbii#Oocysts"/>
    <skos:prefLabel>Zygotes</skos:prefLabel>
    <skos:related
    rdf:resource="http://thesaurus.nbii.gov/nbii#Hemizygosity"/>
    <skos:related rdf:resource="http://thesaurus.nbii.gov/nbii#Zygosity"/>
    <skos:scopeNote>ASF Aquatic Sciences and Fisheries LSC Life
    Sciences</skos:scopeNote>
</rdf:Description>
Simple SKOS Tags
   Skos: concept
   Skos:prefLabel
   Skos:altLabel
   Skos:broader
   Skos:narrower
   Skos:related
             SKOS tags
• SN Scope Note =       skos:scopeNote
• USE Use =        skos:prefLabel
• UF Used For =       skos:altLabel
• BT Broader Term = skos:broader
• NT Narrower Term = skos:narrower
• RT Related Term = skos:related
Each entry term has a skos:concept
        Projects Using SKOS:
• Library of Congress
http://id.loc.gov/authorities/search/
• Europeana
http://www.europeana.eu/portal/
• HIVE
http://ils.unc.edu/mrc/hive/
Access to all handouts and slides will be
 posted to:

https://www.nescent.org/sites/hive/Worksho
  p_Handouts_Slides#AALL.2C_July_12.2C
  _2010

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:0
posted:2/12/2012
language:
pages:23