Providing Semantic and Bibliographic Data for Library Discovery. Cathy Dolbear Senior Link Architect, Data Strategy Oxford University Press

Transcription

1 Providing Semantic and Bibliographic Data for Library Discovery Cathy Dolbear Senior Link Architect, Data Strategy Oxford University Press

2 Overview Introduction to OUP Our relationship with libraries as a publisher Industry trends for publication and delivery of metadata Semantic versus Bibliographic Metadata Where next? 2

3 Introduction to OUP Meet the Press 3

4 How library users find our content search engines, specialised databases OUP Journals Discovery Services Library Management System Academic Catalogue (print + online) User Online Product s Semantic ( authorities ) Biblio-graphic Other publishers 4

5 Our relationship with libraries Customers; Discovery Portals Customers but not users make purchasing decisions based on metadata-driven usage statistics Discovery portals Discovery services (ProQuest, ExLibris, OCLC etc) => XML metadata feeds But Main referrers are search engines (Google/Scholar, Bing, Yahoo!) => GS markup/rdfa/json-ld Users arrive via direct links (NIH PubMed, escardio) => entity recognition 5

6 Discovery data Many ways to slice the pie Entry Referrers for a particular university consortium 6

7 How should we provide our metadata? Industry trends for publication and delivery Push - direct metadata deliveries OxMetaML Pull metadata publishing OAI-PMH: MARC 21 Dublin Core Linked Data Publishing platform?..u JSON-LD 7

8 How should we provide our metadata? Industry trends for publication and delivery Publishers can t just choose a single vocabulary/format Too many differing requirements/options Transform on delivery as required Simplify our internal metadata format Bibliographic & semantic information only Removing processing instructions Clear semantics makes linking/integration easier More likely we can publish our metadata without transformation Decentralised web world: no single standard vocabulary 8

9 What information do we provide? Bibliographic versus Semantic metadata Bibliographic information (author, title, ISBN etc) Semantic or contextual information - what the document is about (academic subject, person, organisation etc)

10 Which vocabularies/ontologies? so many standards to choose from Semantic data integration is not straightforward 10

11 Why didn t you use? [insert name of favourite vocabulary here] Semantic data integration is not straightforward frbr:object frbr: Person frbr: Corporate Body 11

12 Why didn t you use? [insert name of favourite vocabulary here] Semantic data integration is not straightforward frbr: Work 12

13 Metadata publishing Embedded markup in HTML Google Scholar meta-tags HighWire Press/PRISM tagged bibliographic data Full text indexed (unlike Google) RDFa (RDF in attributes) Currently published on our non-journals online products Using schema.org vocabulary RDFa distillers can scrape the metadata Only in HTML header => not fully recognised by Google 13

14 Metadata publishing JSON-LD Our RDFa not fully recognised by Google at the document, not object level Still want structured markup Improves click-through rate (30% reported by BestBuy) Search results more eye-catching as rich snippets Increases traffic (BBC reported 20%) Content indexed better Developing solution using JSON-LD JSON-LD 14

15 Metadata publishing Java Script Object Notation for Linked Data <script type="application/ld+json"> { "@context": " "@type": MedicalScholarlyArticle", publicationtype: V03.200, doi": " /brain/awl303, author": : Person, affiliation : University of Wurzburg, Department of Neuroradiology, Wurzburg, name : Andreas J Bartsch }, keywords : alcoholism, morphometry, MR spectroscopy, SIENA, voxelwise SIENA statistics, about": { "@type": "MedicalCondition", "name": Alcoholism, "code": { "@id": " "@type": "MedicalCode", "code": "C ", "codingsystem": "MeSH" }, } } </script> 15

16 Metadata publishing Java Script Object Notation for Linked Data <script type="application/ld+json"> { "@context": " "@type": MedicalScholarlyArticle", publicationtype: V03.200, doi": " /brain/awl303, author": : Person, affiliation : University of Wurzburg, Department of Neuroradiology, Wurzburg, name : Andreas J Bartsch }, "@context": " keywords : alcoholism, morphometry, MR spectroscopy, SIENA, voxelwise SIENA statistics, } } </script> about": { "@type": MedicalScholarlyArticle", "@type": "MedicalCondition", "name": Alcoholism, "code": { "@id": " "@type": "MedicalCode", "code": "C ", "codingsystem": "MeSH" }, 16

17 Metadata publishing Java Script Object Notation for Linked Data <script type="application/ld+json"> { "@context": " "@type": MedicalScholarlyArticle", publicationtype: V03.200, doi": " /brain/awl303, author": : Person, affiliation : University of Wurzburg, Department of Neuroradiology, Wurzburg, name : Andreas J Bartsch }, publicationtype: V03.200, keywords : alcoholism, morphometry, MR spectroscopy, SIENA, voxelwise SIENA statistics, } } </script> about": { doi": " /brain/awl303, "@type": "MedicalCondition", "name": Alcoholism, "code": { "@id": " "@type": "MedicalCode", "code": "C ", "codingsystem": "MeSH" }, 17

18 Metadata publishing Java Script Object Notation for Linked Data <script type="application/ld+json"> { "@context": " "@type": MedicalScholarlyArticle", publicationtype: V03.200, doi": " /brain/awl303, author": { : Person, { affiliation : University Person, of Wurzburg, Department of Neuroradiology, Wurzburg, name : Andreas J Bartsch }, affiliation : University of Wurzburg, keywords : alcoholism, morphometry, MR spectroscopy, SIENA, voxelwise SIENA statistics, about": { name : Andreas J Bartsch "@type": }, "MedicalCondition", "name": Alcoholism, "code": { "@id": " "@type": "MedicalCode", "code": "C ", "codingsystem": "MeSH" }, } } </script> 18

19 Metadata publishing Java Script Object Notation for Linked Data <script type="application/ld+json"> { "@context": " "@type": MedicalScholarlyArticle", publicationtype: V03.200, doi": " /brain/awl303, author": { about": : Person, affiliation : University "@type": of Wurzburg, "MedicalCondition", Department of Neuroradiology, Wurzburg, name : Andreas J Bartsch }, "name": Alcoholism, keywords : alcoholism, morphometry, MR spectroscopy, SIENA, voxelwise SIENA statistics, "code": { } about": { }"@type": "MedicalCondition", "name": Alcoholism, "code": { "@id": " "@type": "MedicalCode", "code": "C ", "codingsystem": "MeSH" }, } } </script> 19

20 Entity recognition in-line content markup Wikidata have aligned Dictionary of National Biography people to VIAF Semantic enrichment programme underway, starting with medical entities tagged with UMLS codes 20

21 Where next? Mainstream consumption of bibliographic linked data Publisher-supplied metadata Simple, clean semantic and bibliographic data model Output to multiple standards/formats in the interim Increase tagging of our content/ entity linking Providing semantic disambiguation Requirements mainly driven by web search engines so far If we publish linked data, will it be incorporated into library search and indexing systems? 21

22 Any Questions? 22