Linked Data at the BNE. Elena Escolano Rodríguez, Daniel Vila Suero
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The document describes the BNE's project to create linked data from its bibliographic and authority records. It involved selecting relevant MARC data about Miguel de Cervantes and related authors, mapping the data to FRBR, FRAD and other ontologies, transforming the data into RDF, and linking the data to other datasets like VIAF. The goals were to test applying IFLA models at scale, and create a unified authority system for Spanish libraries. Key activities included analyzing the MARC data, developing mapping and transformation tools, and publishing the linked data on the web.
Linked Data at the BNE. Elena Escolano Rodríguez, Daniel Vila Suero
- 1. Departamento de Proceso Técnico Linked Data at the BNE. World Library and Information Congress: 77th IFLA General Conference and Assembly. Semantic Web Special Interest Group. Puerto Rico. August 17 Elena Escolano Rodríguez – Jefa Servicio de Coordinación y Normalización Daniel Vila Suero – Universidad Politécnica de Madrid
- 2. Indice 01 Project background 02 BNE Standards and Ontology Selection 03 Data source set: Cervantes and surrounding data 04 RDF Modelling 05 URI Design 06 Process Overview 07 Main activities 08 Process overview 09 Process steps 10 Main activities 11 Some results Linked Data at the BNE 2
- 3. Project background Cooperation project between BNE and national and regional libraries of Spain GOAL: Create a Unified Authority System (similar to VIAF approach) MAIN ISSUE: Multilinguality Various approaches were analysed and tested, but were not succesful Linked Data at the BNE
- 4. Project background Around January 2011 the joint project “Preliminary study of Linked Data” between the BNE and OEG starts Linked Data at the BNE
- 5. BNE Standards and Ontology selection Linked Data at the BNE
- 6. Data source set: Cervantes and surrounding data MARC data selection involved 3 phases: Phase 1: Authority records: Cervantes + each record that contained Cervantes as author (author-title, author-title-lang, etc.) –> 550 records Bibliographic records: Associated to selected set of authoritities 8552 records Phase 2: Authority records: Records associated to selected set of bibliographic records in Phase 1 7351 records Phase 3: Authority records: Authority records related within any field with selected set in Phase 2. (Mainly themas and works and expressions from authors of phase 2) 53000 records Linked Data at the BNE 6
- 7. RDF Modelling frbr:Manifestation MARC ISBD BIBLIOGRAPHIC Elements RECORD Frbr:Expression FRBR frbr:Work MARC FRAD AUTHORITY RECORD frbr:Person frsad:Thema Linked Data at the BNE 7
- 8. URI Design Followed Cool URIs and Linked Data patterns (Natural keys) A-Box: http://cultura.linkeddata.es/BNE/resource/<Class>/<ID> T-Box: Opaque URIs Multilingual labels (EN, ES, HR..) Available at metadataregistry.org Base URI: http://iflastandards.info/ns/ Not published, will be published soon not dereferenceable Linked Data at the BNE
- 9. Process Overview OBJECTIVES: 1. Find a systematic and repeteable transformation methodology 2. Design and implementation of lifecycle supporting tools (mapping, cleaning, transformation, linkage). 3. Proove applicability of IFLA RDF/OWL models Lifecycle Process : Iterative and incremental Joint effort from two different worlds: Libraries and Semantic Web (Linked Data) Linked Data at the BNE 9
- 10. Main activities 1. Data analysis: Understand records’ organization and structure (Authorities and bibliographic) Development of analytical tools (fields and subfields combination reports, etc.) 2. Mapping MARC21 to chosen Models Very complex process ASSET: Tool for mapping templates generation, with analytical data from input records 3. Data transformation to RDF: Ad-hoc transformation tool Linked Data at the BNE 10
- 11. Process overview Linked Data at the BNE 11
- 12. PROCESS STEPS USER INTERFACE RECORDS ANALYSIS 6 PUBBY 1 CSV 4STORE MAPPING INSTANCES DEVELOPMENT GENERATION 2 3 INSTANCES ANOTATION 4 INSTANCES 5 INTERLINKING Linked Data at the BNE
- 13. Main activities 4. Cultura.linkeddata.es domain for CH resources 5. RDF publishing: Virtuoso Server Pubby 6. Linkage to other datasets: Phase 1: VIAF y other libraries (BL, DNB, Libris Sweden) Phase 2: DBPEDIA, Geo, etc. Linked Data at the BNE 13
- 14. Some results Linked Data at the BNE 14
- 15. WORK is in Progress http://cultura.linkeddata.es/visualizer/ Linked Data at the BNE
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- 24. Elena Escolano Rodríguez Departamento de Proceso Técnico elena.escolano@bne.es Pº de Recoletos 20 -22 28071 Madrid España T +34 915 807 800 www.bne.es Linked Data at the BNE 24