Topic Maps: What Works and What Doesn’t? 31 October 2007 A304 - 2:45-3:30 PM PDT Presented by Jay...
Transcript of Topic Maps: What Works and What Doesn’t? 31 October 2007 A304 - 2:45-3:30 PM PDT Presented by Jay...
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Topic Maps: What Works and What Doesn’t?
31 October 2007
A304 - 2:45-3:30 PM PDT
Presented by Jay Ven Eman, Ph.D., CEO
Access Innovations, Inc. / Data Harmony
505.998.0800 / www.accessinn.com / www.dataharmony.com
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New Technologies Meta data W3C
OWL SKOS
Topic Maps
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Meta data What is it in this context? How does it work in a semantic
environment?
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“Is MLB a sport, entertainment, or business?”
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Semantic Web?“Is MLB a sport, entertainment, or business?”
About
October 31, 2007
Professional baseball
Entertainment
Business
By Smith
Story Arial
Summary In brief ...
1.98
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1.98? Price? Price of what?
Newspaper? Stadium seat? Article?
$, , Ÿ, £? Wholesale? Retail? Sale? How?
?
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“Meaning” starts with a knowledge organization system (KOS)
Uncontrolled list Name authority file Synonym set/ring Controlled vocabulary Taxonomy Thesaurus
Not complex - $
Highly complex - $$$$
LOTS OF OVERLAP!
Topic MapOntologySKOS
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Meta Data - the “Meaning Markers” Data about data Information about information Included Added
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Data about ‘stuff’ - like what? Author name Date of creation Language used in the creation Title of the creation Subject of the creation Keywords...
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Narrowing the focus Keywords (AKA subject headings, index
terms, identifiers, etc.) are one type of meta data.
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For example... A bibliographic database record usually
includes information such as author, title, language, date of creation, and subject area.
So does a traditional library card catalog
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But did you think about… The legend on a street map? The yellow pages in a telephone book? The aisle signs in a supermarket?
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Meaning of meta data Meta data is information
that ‘points’ to a explanation or a resolution
Meta data makes statements about an information resource or object
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Sidebar - meta data or metadata? ‘Metadata’ is “a word coined by Jack E.
Myers to represent current and future lines of products implementing the concepts of his MetaModel, and also to designate his company, The Metadata Company, that would develop and market those products.”
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Metadata
A term not used prior to 1969 Used first in 1973 Registered U.S. Trademark (in 1986),
owned by Jack Myers Metadata granted incontestable status
in 1991 Designed to be a term with no particular
meaning
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Meta Data
“Is MLB a sport, entertainment, or business?”<TI> </TI>
<ST>
<ST>
<ST>
</ST>
</ST>
</ST>
<DOC Date=10/31/07>
</DOC>
Professional baseball
Entertainment
Business
<Byline> Smith </Byline>
<Text> There was a time ...</Text>
<AB> In brief ... </AB>
Included Added
Object
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Meta data as indexing language
List of words Synonyms Taxonomy Thesaurus
INCREASING COMPLEXITY / RICHNESS
Ambiguity control Ambiguity control Ambiguity cont’l Synonym control Synonym control Synonym cont’l
Hierarchical rel’s Hierarchical rel’s Associative rel’s
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Aka subject term, heading, node, category, descriptor, class
Taxonomy / thesaurus Main Term (MT) Top Term (TT) Broader Terms (BT) Narrower Terms (NT) Related Terms (RT)
See also (SA) Scope Note (SN) History (H) NonPreferred Term (NP)
Used for (UF), See (S)
TAXONOMY
THESAURUS
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Term record
Various views
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New Frontiers from the World Wide Web
Consortium:OWL & SKOS
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Term record
Various views
The old frontier?
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Taxonomy, Thesaurus, & Ontology
Taxonomies and thesauri are not ontologies They are entities Ontology – science of describing kinds of
entities “an explicit and formal specification of a
conceptualization”
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Ontology
From philosophy – the science of
describing Kinds of entities in the world
How they are related
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OWL Web Ontology Language
W3C Recommendation 10 February 2004
http://www.w3.org/TR/2004/Rec-owl-guide-20040210/
http://www.w3.org/TR/2004/Rec-owl-ref-20040210/
http://www.w3.org/TR/2004/Rec-webont-req-20040210/
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Taxonomic classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Strigiformes
Families: Strigidae
Tytonidae
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Web Ontology language - OWL
OWL output Provides semantic meaning to these kinds of
entities
Web resource
Accessible to automated processes
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OWL “…is intended to provide a language that
can be used to describe the classes and relations between them
that are inherent in Web documents and applications.”
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OWL Formalize a domain by defining
Classes Properties of those classes
Define individuals Assert properties about them
Reason about these Classes and Individuals
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OWL Ontology May include
1. Classes2. Properties3. Instances
Capture semantics Multiple, distributed, related ontology schema Normative OWL exchange syntax RDF/XML
Resource Description Framework/Extensible Markup Language
Topic
SKOS
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Structure of controlled vocabularies
List of words Synonyms Taxonomy Thesaurus
INCREASING COMPLEXITY / RICHNESS
Ambiguity control Ambiguity control Ambiguity cont’l Synonym control Synonym control Synonym cont’l
Hierarchical rel’s Hierarchical rel’s Associative rel’s
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Hierarchical View
Term
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<TermInfo> <T>Agrotechnology</T> <BT>Biotechnology</BT> <NT>Animal management technologies</NT> <NT>Controlled environment agriculture</NT> <NT>Genetically modified crops</NT> </TermInfo> Source: www.DataHarmony.com
Taxonomy term record
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<TermInfo> <T>Agrotechnology</T> <BT>Biotechnology</BT> <NT>Animal management technologies</NT> <NT>Controlled environment agriculture</NT> <NT>Genetically modified crops</NT> <RT>Agricultural science</RT> <RT>Food technology</RT> <UF>Plant engineering</UF> <Scope></Scope> <Editorial_Note></Editorial_Note> <Facet></Facet> <History></History> </TermInfo> Source: www.DataHarmony.com
Thesaurus term record
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<PreferredTerm rdf:ID="T131"><rdfs:label xml:lang="en">Agrotechnology</rdfs:label><BroaderTerm rdf:resource="#T603" newsindexer:alpha="Biotechnology"/><NarrowerTerm rdf:resource="#T252" newsindexer:alpha="Animal
management technologies"/><NarrowerTerm rdf:resource="#T1221" newsindexer:alpha="Controlled
environment agriculture"/>
<NarrowerTerm rdf:resource="#T2166" newsindexer:alpha="Geneticallymodified crops"/>
<Related_Term rdf:resource="#T127" newsindexer:alpha="Agriculturalscience"/>
<Related_Term rdf:resource="#T2020" newsindexer:alpha="Food technology"/>
<Non-Preferred_Term rdf:resource="#T3898" newsindexer:alpha="Plantengineering"/>
</PreferredTerm> Source: www.DataHarmony.com
OWL term record
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SKOS Simple Knowledge Organization System SKOS Core Guide
W3C Working Draft 2 November 2005 http://www.w3.org/TR/2005/WD-swbp-skos-core-guide-
20051102/
SKOS Core Vocabulary Specification W3C Working Draft 2 November 2005 http://www.w3.org/TR/2005/WD-swbp-skos-core-spec-
20051102/
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SKOS May include
1. Classes (RDFS)2. Properties (RDF)3. Instances??
Express structure and content of concept schemes Multiple, distributed, related SKOS schemes Normative SKOS exchange syntax RDF/XML
Resource Description Framework/Extensible Markup Language
OWL
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SKOS Specifically for “concept schemes”
Thesauri Classification schemes Subject headings lists Taxonomies Terminologies Glossaries And other types of controlled vocabularies
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SKOS Models concept schemes
A set of concepts OPTIONALLY includes statements about
semantic relationships between concepts Directionality implied - interpretations -
(‘skos:Concept’ and properties) Not people, organizations, places, etc.
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Source:
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DH SKOS Output<skos:Concept rdf:about="#T1">
<skos:prefLabel>Agriculture</skos:prefLabel><skos:altLabel>Agribusiness</skos:altLabel><skos:altLabel>Agronomy</skos:altLabel><skos:altLabel>Farming</skos:altLabel><status>Accepted</status>
</skos:Concept>
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DH SKOS Output<skos:Concept rdf:about="#T2">
<skos:prefLabel>American music</skos:prefLabel><skos:broader rdf:resource="#T66" local:alpha="Music styles"/><skos:related rdf:resource="#T27" local:alpha="Country and western music"/><skos:related rdf:resource="#T51" local:alpha="Jazz music"/><skos:related rdf:resource="#T99" local:alpha="Rhythm and blues music"/><skos:related rdf:resource="#T101" local:alpha="Rock music"/><status>Accepted</status>
</skos:Concept>
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DH SKOS Output<skos:Concept rdf:about="#T3">
<skos:prefLabel>Architecture</skos:prefLabel><skos:broader rdf:resource="#T113" local:alpha="Visual and performing arts"/><skos:scopeNote>Refers to the art and practice of designing and building structures</skos:scopeNote><status>Accepted</status>
</skos:Concept><skos:Concept rdf:about="#T4">
<skos:prefLabel>Band music</skos:prefLabel><skos:broader rdf:resource="#T49" local:alpha="Instrumental music"/><skos:related rdf:resource="#T5" local:alpha="Bands (Music)"/><status>Accepted</status>
</skos:Concept>
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A Brief Discussion of Topic Maps
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Statements about what?
Baseball
Amateur baseball
Little league
Professional baseball
Sports
MLB
“Is MLB a sport, entertainment, or business?”
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Topic Maps ISO standard - ISO 13250:2002 For merging back-of-the-book indexes Collection of structured markup Describing KOS Associating KOS with information
resources (objects) Separation of KOS from objects
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Topic Maps Three main concepts
1. Names of things2. Occurrences of the named things3. Associations between names
Three additional constructs1. Identity2. Facet3. Scope
OWL
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Topic with occurrence
“Is MLB a sport, entertainment, or business?”
Professional baseball
http://www.newindexer.com/mlb.htm/
descriptor-for
Topic map layer
Information resources layer
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Topics, associations, occurrences
Professional baseball
Baseball
Sports
member-of
member-of
MLB
use-for http://www.newindexer.com/mlb.htm/
doc-type
Amateur baseball
Little leaguemember-of
descriptor-for
Professional athletes
related-to
Smith
author-of
member-of
http://www.swaa.org
article
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Problems with Semantic Web Complexity Lack of tools Lack of skills Limited resources Gaming the system The syllogism trap
KOS biases Lack of agreement Lack of interest Good enough Topic Maps vs. OWL
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Lack of agreement “Symbionese Liberation Army credited with
offing an SUV” About - ‘revolutionaries’ or ‘freedom fighters’ About - ‘revolutions’ or ‘freedom movements’
“Symbionese Liberation Army accused of firebombing SUV” About - ‘terrorists’ or ‘anarchists’ About - ‘terrorism’ or ‘anarchy’
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The syllogism trap Humans are mortal Greeks are human Therefore, Greeks are mortal
New Mexicans speak Spanish The author lives in New Mexico Therefore, ...
Source: Clay Shirky, “The Semantic Web, Syllogism, and Worldview”www.shirky.com/writings/semantic_syllogism.html/ andDave McComb, presentation at DAMA-I, May 2005 www.wilshireconferences.com
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The syllogism humor trap I am a nobody Nobody is perfect Therefore, I am perfect
Bonus:I don't approve of political jokes.
I've seen too many of them get elected.
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Topic Maps vs. OWL TMCL Topic maps XTM, HyTM, LTM ISO
OWL RDF Schema RDF RDF/XML, N3 SOAP, WSDL W3C
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Copyright 2007 Access Innovations, Inc.
Full-text search and applied indexing languages Full-text search engines - getting better?? Thesauri applied using machine
automated indexing - easier, faster, cheaper
Taxonomic navigation Faceted navigation Table of contents drilldown - taxonomy views
Query disambiguation
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Full-text search and applied indexing languages Long history Many richly developed thesauri with legs Tools that work Large body of professionals Almost as rich
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Tools that work!
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Hierarchical View
Term Record
Almost as rich
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ANSI/NISO Z39.19-200x
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Clearer disambiguation?
Mercury
Planets
Roman god
Metallic element
Temperature
Automobile
TypeOf
BrandOf
IsA
IsA
IsA
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Clearer disambiguation? Thesaurus statement
Mercury (planet) mercury (metal) Mercury (automobile) Mercury (mythical being) mercury (temperature)
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Clearer disambiguation?
OWL statement<PreferredTerm rdf:ID="T3195">
<rdfs:label xml:lang="en">Mercury (Planets)</rdfs:label>
<BroaderTerm rdf:resource="#T3896" newsindexer:alpha="Planets"/>
</PreferredTerm>
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Thesaurus to SKOS Thesaurus label
Main Term (MT) Top Term (TT) Broader Terms (BT) Narrower Terms (NT) Narrower Term Instance Related Terms (RT)
See also (SA) NonPreferred Term (NP)
Used for (UF), See (S) Scope Note (SN) History (H)
SKOS Label
<skos:Concept rdf:about=”numeric"> <skos:hasTopConcept
rdf:resource=”numeric" local:alpha=”TopTerm"/>
<skos:broader rdf:resource=”numeric" local:alpha=”BroaderTerm"/>
<skos:Narrower rdf:resource=”numeric" local:alpha=”NarrowerTerm"/>
<skos:related rdf:resource=”numeric" local:alpha=”RelatedTerm"/>
<skos:altLabel>NonpreferredTerm</skos:altLabel>
<rdf:Property rdf:ID=”ScopeNote"> <rdf:Property rdf:ID=”History">
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Thesaurus to Ontology (OWL) Thesaurus Label
Main Term (MT) Top Term (TT) Broader Terms (BT) Narrower Terms (NT) Narrower Term Instance Related Terms (RT)
See also (SA) NonPreferred Term (NP)
Used for (UF), See (S) Scope Note (SN) History (H)
OWL Label
<PreferredTerm rdf:ID=”numeric"> <TopTerm rdf:ID=“numeric”> <BroaderTerm rdf:resource=”numeric"
newsindexer:alpha=”BroaderTerm"/> <NarrowerTerm rdf:resource=”numeric"
newsindexer:alpha=”NarrowerTerm"/> <Related_Term rdf:resource=“numeric"
newsindexer:alpha=”RelatedTerm"/> <Non-Preferred_Term
rdf:resource=”numeric" newsindexer:alpha=”Non-preferredTerm"/>
<owl:DatatypeProperty rdf:ID="Scope_Note">
<owl:DatatypeProperty rdf:ID=”History">
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Copyright 2007 Access Innovations, Inc.
Objectives for search & navigation ASIS&T -- virtual library
Subject matter ASRT -- internal information control
Organization chart Naval Postgrad -- Homeland security degree
Curriculum outline SLA -- Web content
Public Web navigation
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Naval Postgraduate School’s Homeland Security Taxonomy
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Naval Postgraduate School’s Homeland Security Taxonomy
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SLA website and thesaurus
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SLA search
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Copyright 2007 Access Innovations, Inc.
Myth of topic maps And OWL, SKOS Not a myth They do work Limited adoption Narrow, tightly defined niches
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Topic Maps: What Works and What Doesn’t?
31 October 2007
A304 - 2:45-3:30 PM PDT
Presented by Jay Ven Eman, Ph.D., CEO
Access Innovations, Inc. / Data Harmony
505.998.0800 / www.accessinn.com / www.dataharmony.com
Thank you. Questions?
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Copyright 2007 Access Innovations, Inc.
Activity in the field Ontologies
http://www.w3.org/2001/sw/WebOnt/impls SKOS
http://www.w3.org/TR/swbp-skos-core-guide/#secref
Topic Maps http://www.topicmaps.org/
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Copyright 2007 Access Innovations, Inc.
Resources www.accessinn.com www.dataharmony.com www.iso.org www.ontopia.com
Lars Marius Garshol, “Metadata? Thesaurui? Taxonomies? Topic Maps!”
Steve Pepper, “The TAO of Topic Maps” www.topicmaps.org
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Resources Cory Doctorow, “Metacrap: Putting the Torch to Seven Straw-men
of the Meta-utopia,” http://www.well.com/~doctorow/metacrap.htm Russell Glass, “Is Anyone Going to Tag all of this Stuff?,”
http://zoominfo.blogs.com/soughtafter/2005/03/semantic_web_is.html Clay Shirky, “The Semantic Web, Syllogism, and Worldview,”
www.shirky.com/writings/semantic_sllogism.html Pete Norvig, “Semantic Web Ontologies: What Works and What
Doesn’t,” www.alwayson-network.com/comments.php?id=P7480_0_3_0_C