TEI$metadata$as$source$to$Europeana$Regia$ – prac5cal ...TEI...

TEI metadata as source to Europeana Regia – prac5cal example and future challenges


Stefanie Gehrke


•  Mo/va/on •  Reference transforma/on •  Technical details •  TEI as a source •  Seman/c approach •  Conclusion TEI

Stefanie Gehrke, 05.10.2013 2

Content


Europeana Regia (funded by the European Commission -‐ ICT PSP) •  30 months effort 2010-‐2012


Mo5va5on


Europeana Regia (funded by the European Commission -‐ ICT PSP) •  30 months effort 2010-‐2012 •  5 par/cipa/ng libraries


Mo5va5on



•  Over 1000 digi/sed manuscripts •  Arranged in 3 virtual collec/ons


Mo5va5on



•  Over 1000 digi/sed manuscripts •  Arranged in 3 virtual collec/ons •  1 Virtual Exhibi/on •  Available through Europeana and TEL portal Stefanie Gehrke, 05.10.2013 6

Mo5va5on


Challenges with respect to metadata inges/on •  Mul/ple sources with different depth/quality •  Varying technical exper/se

Goals for metadata inges/on •  Harmonized display in Europeana and TEL portal •  High quality of informa/on given


Mo5va5on


Objec/ves : •  Project specific standards for the ESE metadata fields

•  Op/onal support for the par/cipa/ng libraries

•  A reference transforma/on to allow quality assurance


Mo5va5on


What is meant by reference transforma/on? •  A transforma/on to include all rules. •  A transforma/on not part of the collec/on of transforma/ons

of the produc/ve environment. •  A tool for quality assurance:

•  Explicit for the output metadata •  Implicit for the input metadata


Reference transforma5on


How to build a reference transforma/on? •  Single output module for all input formats •  Clearly structured •  A lot of documenta/on / comments •  Implemented in an easily accessible form as an XSL-‐

transforma/on •  Possibility to be used not only by experts •  Good to maintain





Reference transforma5on – Mapping

…



Technical details

Standard XSL code: -‐ one purpose -‐ one format / varia/on -‐ recursive



Technical details

Standard XSL code: small differences à many new transforma/ons


Reference transform •  Modularity

xsl:include

modules

localiza/on


Technical details


Reference transform •  Modularity

adding a format = 1 line + 1 module

Consistency


Technical details


Differen/a/ng templates by input format: overloading templates by mode statement Stefanie Gehrke, 05.10.2013 17

Technical details


Ambigui/es

•  dc:creator = author Aeen/on : unique list !

•  dc:format = page dimensions

•  dcterms:extent = number of pages (with or without msPart)


TEI as source


Mul/ple TEI input formats are possible, but for Europeana Regia •  single export file format was chosen •  ENRICH compliance was preferred


TEI as source


Mul/ple TEI input formats are possible, but for Europeana Regia •  single export file format was chosen •  ENRICH compliance was preferred

TEI advantages: •  Highly structured tagging •  Mul/language support •  Encouraged use of iden/fiers / authority data Stefanie Gehrke, 05.10.2013 20

TEI as source



Results



Results

Homogenous display for different sources


ESE (Europeana Seman/c Elements) data model •  describes one single Cultural Heritage Object (CHO) •  has well defined but limited number of elements •  emphasis on retrieval of CHO

Next step is the seman/c EDM (Europeana Data Model) which adds in 2012 the rela/ons between CHOs or a CHO and concepts, agents and places. Stefanie Gehrke, 05.10.2013 24

2012 : Europeana towards a seman5c approach


What is already there? •  Use of authority data and iden/fiers (essen/al!)

•  Otherwise automa/c rou/nes make e.g. the French monastery Wissembourg a Romanian town

•  Mul/lingual data structures What is s/ll missing? •  InterCHO links


Seman5c approach -‐ TEI as source to EDM -‐ Observa5ons


The transforma/on works well for the intra CHO data:


Seman5c approach -‐ TEI as source to EDM


While EDM represents a kind of “Coarse Grain” seman/cs •  Linking CHOs, agents, loca/ons, concepts, … •  Generaliza/on of ESE

There is also some kind of “Fine Grain” seman/cs •  Seman/c descrip/on of the inner structure of CHO and

its digital representa/on, e.g. Shared Canvas (IIIF)

And of course holis/c approaches like CIDOC-‐CRM, FRBRoo … Stefanie Gehrke, 05.10.2013 28

Other seman5c approaches than EDM


What is already there? •  Some “fine grain” stuff, especially academic annota/ons,

transcripts, chapters, … •  Use of authority data and iden/fiers •  Mul/lingual data structures •  Links to images (digital facsimile) What is missing? •  Explicit informa/on about digital facsimile/images like

technical descrip/on, format (“jp2”), viewing direc/on (“right-‐to-‐lem”), viewing hint (“paged”)


Seman5c approach -‐ TEI as source to Shared Canvas


Transforma/on modules can be re-‐used for other seman/c formats, e.g. Shared Canvas manifest serialized as JSON-‐LD:

re-‐used modules


Seman5c approach -‐ Shared Canvas


Transforma/on modules can be re-‐used for other seman/c formats, e.g. Shared Canvas manifest serialized as JSON-‐LD: SC -‐ Manifest




Biblissima : Manifest for BnF MSS français 1728




Possible solu/ons concerning the missing encoding possibili/es : •  TEI as an embedded format to e.g. METS/MODS or Shared

Canvas

or •  Extensions / new subsets to TEI regarding

•  inter-‐document rela/ons (collec/on, volume of series, …) •  “technical” aspects of digital facsimiles (images files, …)


Seman5c approach -‐ TEI as source to Seman5c metadata


SIG Ontologies TEI MM 2013 Proposal (e.g.) : “Extend the scope of rela/on to the object elements and to event and add the type aeribute.” …


Seman5c approach -‐ TEI as source to Seman5c metadata


TEI has turned out to be an excellent source format for the Europeana Regia project. Future seman/c approaches would need TEI to adopt to inter-‐CHO rela/ons.


Conclusion


Invita/on to SourceForge hep://sourceforge.net/projects/eregia2eseedm/



Ques/ons?


biblissima (2013-‐2016) and TEI •  Miroir des Classiques •  Inventaires du Mont Saint-‐Michel •  reliures.bnf.fr •  e-‐ktobe •  Bibliothèques Virtuelles Humanistes •  glossae.net •  Telma •  Tradi/o Hollandrini •  Sanderus Electronicus •  sermones.net •  Catalogues régionaux des Incunables Informa/sés (CRII)

TEI$metadata$as$source$to$Europeana$Regia$ – prac5cal ...TEI...

Documents

Transcript of TEI$metadata$as$source$to$Europeana$Regia$ – prac5cal ...TEI...