METADATA SEMANTICS

Metadata - Aanknopingspunten, Prioriteiten, Toekomsperspectieven en Aantekeningen vanuit de Marge Chris Poppe Multimedia Lab Department of Electronics and Information Systems Faculty of Engineering Ghent University

Multimedia Lab ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Metadata XML technologies Semantic Web Technologies Standardization Metadata management …

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Metadata ,[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Metadata ,[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Resolution Dpi Date/Time created Creator Camera used File format (JPG, BMP, GIF, PNG, …) Location shot (GPS) Copyright Title Genre Rating Comment Depicted event Keywords/tags …

Metadata: tags ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Taxonomies ,[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Taxonomies ,[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Folksonomy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Broad Folksonomy ,[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Narrow Folksonomy ,[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Tagging usage ,[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Tagging howto? ,[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Tagging problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Use of Metadata ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

[object Object],[object Object],[object Object],Multimedia MP2 JPEG MPEG-2 MXF JPEG2000 AVI AAC H.264/MPEG-4 AVC PNG Motion JPEG2000 TIFF MP4 MPEG WAV FLAC VC-1 Ogg Vorbis DivX AIFF GIF JPEG-LS Matroska OGM/OGG Windows Media Audio DIRAC 3GP DV FLV Betacam Realmedia MOV AC-3/Dolby Digital Theora ASF TTA Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Video compression Audio compression Image compression Physical Containers

[object Object],[object Object],Metadata Standard Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 <?xml version=“1.0” encoding=“UTF-8” ?> <mods xmlns= http://www.loc.gov/mods/ … <titleInfo> <title>De geruchten</title> </titleInfo> <name type=“personal”> <namePart>Claus, Hugo</namePart> <namePart type=“date”>1929-</namePart> <role> <text>creator</text> </role> </name> <typeOfResource>text</typeOfResource> <originInfo>… </originInfo> ... </mods> MODS Metadata Object Description Schema Resolution Dpi Date/Time created Creator Camera used File format (JPG, BMP, GIF, PNG, …) Location shot (GPS) Copyright Title Genre Rating Comment Keywords Depicted event …

XML ,[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 <? xml version="1.0" encoding="UTF-8" ?> <!– This is a list of books. --> <booklist> <book category="thriller"> <title>Het Bernini Mysterie</title> <author>Dan Brown</author> </book> <book category="woordenboek"> <title>Van Dale Frans-Nederlands</title> <author /> </book> </booklist> ,[object Object],[object Object],[object Object]

XML Schema ,[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Determines <? xml version="1.0" encoding="UTF-8" ?>  <booklist> <book category=" thriller "> <title> Het Bernini Mysterie </title> <author> Dan Brown </author> </book> <book category=" woordenboek "> <title> Van Dale Frans-Nederlands </title> <author /> </book> </booklist>

Metadata Standard ,[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 <?xml version=“1.0” encoding=“UTF-8” ?> <mods xmlns= http://www.loc.gov/mods/ … <titleInfo> <title>De geruchten</title> </titleInfo> <name type=“personal”>…</name> <typeOfResource>text</typeOfResource> <originInfo>… </originInfo> ... </mods> MODS XML schema Determines

[object Object],[object Object],Use of Metadata Standards Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 DB DB Speak same language <?xml version=“1.0” encoding=“UTF-8” ?> <mods xmlns= http://www.loc.gov/mods/ … <titleInfo> <title>De geruchten</title> </titleInfo> <name type=“personal”>…</name> <typeOfResource>text</typeOfResource> <originInfo>… </originInfo> ... </mods> MODS document <?xml version=“1.0” encoding=“UTF-8” ?> <mods xmlns= http://www.loc.gov/mods/ … <titleInfo> <title>De geruchten</title> </titleInfo> <name type=“personal”>…</name> <typeOfResource>text</typeOfResource> <originInfo>… </originInfo> ... </mods> MODS document <?xml version=“1.0” encoding=“UTF-8” ?> <mods xmlns= http://www.loc.gov/mods/ … <titleInfo> <title>De geruchten</title> </titleInfo> <name type=“personal”>…</name> <typeOfResource>text</typeOfResource> <originInfo>… </originInfo> ... </mods> MODS document

Metadata Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Problems Metadata Standards ,[object Object],[object Object],[object Object],Detection and Representation of Moving Objects for Video Surveillance Chris Poppe Ghent, Belgium – June 9 2009 < object id=“ 0 ” > < box xc=“ 77 ” yc=“ 73 ” w=“ 21 ” h=“ 16 ” /> </ object > Box: “Coordinates of the centre and the dimensions of the bounding box of a detected object in pixels.” metadata example 1 CVML (Computer Vision Markup Language) < LLID =“ LLID1 ” >< Mask > < BB mp7:dim = “ 4 ” > 67 65 88 91 </ BB > </ Mask > </ LLID > BB: “Coordinates of a rectangular segment.” metadata example 2 VS7 (Video Surveillance Schema)

Problems Metadata Standard ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Semantic Web Technologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Semantic Web ?.0 Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

The Syntactic Web ,[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 ,[object Object],[object Object],[object Object],[object Object]

Impossible (?) using the Syntactic Web… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Why is XML not enough ,[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 <author> <uri>note</uri> <name>Tim</name> </author> <document href= " note"> <author>Tim</author> </document> <document uri="note" author="Tim" />

RDF ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Note Tim hasAuthor

RDFS ,[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Note1 Tim hasAuthor ClassNote Class Person type type

OWL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 Note1 Tim hasAuthor ClassNote Class Person type type isAuthorFrom <owl:ObjectProperty rdf:ID=“ isAuthorFrom ”> <owl:inverseOf rdf:resource=“#hasAuthor”> </owl:ObjectProperty>

Ontology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Ontology (using OWL) ,[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009 subClassOf birth date DatatypeProperty Person Class: Person Class: Scientist Scientist Individual birth date “ 14/10/1801” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Joseph Plateau”

Semantic Web Technologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Semantic Web Technologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Semantic Web Technologies Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

[object Object],Metadata Chris Poppe Levend Geheugen, Brussels, Belgium – September 29 2009

METADATA SEMANTICS

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METADATA SEMANTICS

Editor's Notes