LODAC MuseumConnecting Museums with LOD

National Institute of Informatics

Museum and Web 2011, April 7-9, 2011, Philadelphia, PA, USA

With LODAC project teamH. Takeda, I. Ohmukai, F. Kato, T. Kamura, T. Takahashi, H. Ueda

LODAC Project

Open Social Semantic Web Platform for Academic Resources Providing platforms for Linked Open Data Practicing data accumulation and publishing

Interested Areas Museum information Geographical information, especially geographical names Local information …

Museum data as LOD

The state-of-the-art of museum information in Japan Distributed

Self maintained Isolated

OpaqueSelf designedMessy

Aggregating and associating museum information LODAC-Museum

Linked Open Data

Publish data as re-useable Not PDF or excel Use RDF (Resource Description Framework)

Web of Data Linked Data Principle by Tim Berners-Lee

Use URIs as names for things Use HTTP URIs so that people can look up those names. When someone looks up a URI, provide useful information, using

the standards (RDF*, SPARQL) Include links to other URIs. so that they can discover more

things.

LOD Cloud(Linking Open Data)

http://lod.ac/

LODAC Museum – Main work

Gathering of data Thesaurus, museum collections, etc

Standardization of data Representing data from different sources in a unique form

Integration of data Identifying data Associating the same data

Publishing and share of data

Data sources

Thesaurus and authority sources 日本美術シソーラス DB 絵画編

(Thesaurus of Japanese Art) 国指定文化財データベース

(DB for National Designated Cultural Property) 文化遺産オンライン

(Cultural Heritage Online) Museum Collection (14 museums)

国立美術館所蔵作品総合目録検索システム ( 国立国際美術館，京都国立近代美術館，東京国立近代美術館 ) (4 Nat’l Museums)

国立西洋美術館 (Nat’l M. Western Art) 京都国立博物館 (Kyoto Nat’l Museum) 奈良国立博物館 (Nara Nat’l Museum) 福島県立美術館 (Fukushima Pref. M. of Art)

Other sources DBPedia Japan GIS data

栃木県立美術館 秋田県立近代美術館 岩手県立美術館 徳島県立近代美術館 山梨県立美術館 東京都現代美術館 香川県立東山魁夷せとうち

美術館

Metadata design

Basic Structure Work – Creator – Museum

Interoperability is more considered than correctness in the domain DC> DCTerm> FOAF> iCal >SKOS>NDLSH> RDA> CIDOC

CRM Keep it flat as long as possiblePREFIX URI

crm http://purl.org/NET/cidoc-crm/core#

dc http://purl.org/dc/terms/

dc11 http://purl.org/dc/elements/1.1/

foaf http://xmlns.com/foaf/0.1/

skos http://www.w3.org/2004/02/skos/core#

rdfs http://www.w3.org/2000/01/rdf-schema#

ical http://www.w3.org/2002/12/cal/ical#

rda2 http://RDVocab.info/ElementsGr2

lodac http://lod.ac/ns/lodac#

lodac:Work Property( 一部項目省略 )資料分類 lodac:genre文化財 lodac:culturalAssets制作者 dc:creator / dc11:creator国籍 crm:P7_took_place_at作品名 dc:title / skos:prefLabel作品名読み dc:title @ja-hrkt / skos:altLabel作品名英語 dc:title @en / skos:altLabel銘文 crm:P62I_is_depicted_by印章 crm:P65_shows_visual_item員数 crm:P57_has_number_of_partsコレクション dc:isPartOf制作年 dc:created推定始年 lodac:estimatedStartYear材質 dc:medium / crm:P45_consists_of

Metadata elementsWork: 　 46Person: 　 23Org. 　 13Bib. 　 12

Integration Policy How to integrate data from different sources

sharing of responsibilityEach source is responsible for its data

Identifying IDs for data and managing data with the IDs LODAC is only responsible for integration

Assigning original IDs and associating other IDs to them

Data from Source B

10

Integrated data

dc:references dc:references

dc:references dc:references

dc:references dc:references

dc:creatordc:creator

crm:P55_has_current_location crm:P55_has_current_location

crm:P55_has_current_location dc:creator

Data from Source A

Work

Museum

Creator

Integration of Person Data

Matching of Creators Base: List of Artists from Thesaurus of Japanese Art Target: Creators of collection in museums + Dbpedia Method: String match of names Results: Links from artist nodes to work nodes are added

LODAC data

Link to Work

DBpedia

Basic Information for Creators

Links

Name of creator

LODAC ID and associated Ref-Resource IDs

A Creator’s page

Ref-Resource ID(Dbpedia)

Ref-Resource ID(Japanese Art Thesaurus)

born year

school

related

area

Data associated to LODAC ID

Links to works

徳島県立美術館　 Tokushima Pref. Museum

東京近代美術館　 National Museum of Modern Art, Tokyo

国指定文化財データベース　 DB for National Designated Cultural Property

Tokushima Pref. Museum Thesaurus for Japanese ArtDB for National Designated

Cultural Property

National Museum of Modern Art, Tokyo

Fukui Pref. Museum

Data size and Integration Results

Source Type No.

国立美術館 ( 西美を除く 3 館 ) Work 25180

国立西洋美術館 Work 4373

京都国立博物館 Work 5819

奈良国立博物館 Work 431

福島県立美術館 Work 20

栃木県立美術館 Work 32

秋田県立近代美術館 Work 22

岩手県立美術館 Work 1558

徳島県立近代美術館 Work 18482

山梨県立美術館 Work 262

東京都現代美術館 Work 5416

香川県立東山魁夷せとうち美術館 Work 266

Thesaurus for J. art Work 3800

Thesaurus for J. art Person 1332

Thesaurus for J. art Group 289

Thesaurus for J. art Museum 648

Cultural Heritage Online Museum 915

Designated Cultural Property DB Work 10115

合計 103096

Type for Integration

Sources No. Results

Museum Thesaurus for J. art 648 77

Cultural Heritage Online 915

Designated Cultural Property

Thesaurus for J. art (work) 3800 74

Designated Cultural Property DB

10115

work Thesaurus for J. art (work) 1332 15020

Museum collections (work) 61861

Person Thesaurus for J. art (artist) 1332 615

Museum collections (work) 61861

Museum collections

What can LOD give Museum Data?

Connectivity!!

Open Connectivity makes new values for museum data Connect to data in other areas Connect to UGC (User Generated Contents)