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Exploring Audiovisual Archives through Aligned Thesauri
The document discusses the challenges and methodologies of exploring audiovisual archives using aligned thesauri, focusing on a case study involving the Flemish Institute for Archiving and the Netherlands Institute for Sound and Vision. It outlines a method for converting XML thesauri to SKOS, featuring tools like Cultuurlink for cross-collection search and browsing. Key highlights include the alignment of vocabularies, the creation of an information retrieval demonstrator, and the potential to connect collections through structured vocabularies.
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Exploring Audiovisual Archives through Aligned Thesauri
- 1. Exploring Audiovisual Archives throughAligned Thesauri Victor de Boer, Matthias Priem, Michiel Hildebrand, Nico Verplancke, Arjen de Vries and Johan Oomen
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- 3. The modern archiveThemodern archive
- 4. ...TO CONTEXT: MUTUALLYCONNECTED COLLECTIONS... 23-11-2016 Connecting collections: topics, people, genres, etc Catalogue Photos Wiki Internal: Video hyperlinking
- 5. External: Networked heritage Linksthrough vocabularies
- 6. Case: Flemish Institutefor Archiving (VIAA) and the Netherlands Institute for Sound and Vision (NISV) • pipeline of a real-world, international use case that illustrates the end-user benefit of aligned SKOS thesauri • method and tools for converting XML thesauri to SKOS; • CultuurLINK, an interactive tool for thesaurus alignment; • application that enables cross-collection search and browsing using the aligned thesauri.
- 7. Sound and VisionVIAA Dutch AV heritage > 1.000.000 hrs of Tv (public broadcasters) radio, music, docu, film, commercials, etc Flemish archive, including Flemish broadcaster (VRT)
- 8. Gemeenschappelijke Thesaurus Audiovisuele Archieven(GTAA) 184,484 terms (concepts, persons, geo,…) 19,695 terms in hierarchy 9 conceptSchemes 90,708 scopeNotes 33,542 relations Published as SKOS Linked Open Data http://gtaa.beeldengeluid.nl/
- 9. VRT Thesaurus 100.000+ terms Structured,but not SKOS yet No concept schemes
- 10. . Mapped to SKOS, Hierarchiesto skos:broader/narrower VRT Thesaurus
- 11. VRT Thesaurus 102,172 terms 97,744in hierarchy 4,429 top concepts 212 scopeNotes 6,828 relations Conversion code available at https://github.com/viaacode/skoscreator Triples available at http://semanticweb.cs.vu.nl/test
- 12. Collections VIAA • Part ofthe VRT AV collection • +/- 35,000 items (out of ~1Million) • Annotated with VRT thesaurus • Not publicly available NISV • Openimages.eu • +/- 3,000 items out of 800K hrs • Mostly news broadcasts • Annotated with GTAA • Publicly available (CC-by-SA)
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- 15. ‘Happy alignments areall alike; every unhappy alignment is unhappy in its own way’ Jacco van Ossenbruggen, (with apologies to Tolstoy)
- 16. http://cultuurlink.beeldengeluid.nl/ Semi-automatic SKOS vocabularyalignment service Successor of EuropeanaConnect’s Amalgame Users can upload vocabularies and match with existing vocs. Users can design, experiment, improve their alignment strategy Matching, selecting, excluding, sampling, evaluating
- 17. Example alignment strategy:Concepts
- 18. Example alignment strategy:Persons
- 19. Four strategies Type Nrof correspondences Subjects 4,176 Names 2,197 Locations 4,011 Persons 11,265 Total 21,640
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- 22. Demonstrator: Information Retrievaltool using Spinque search-by-strategy paradigm No programming needed, just modelling the IR strategy Keyword, vocabulary term or Related-Object search Search on titles, description, vocabulary labels Weight on collection (user- input)
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- 24. Input for keyword searchor thesaurus concepts Search results Collection indicator Thesaurus terms associated with video. Terms may appear in one thesaurus or in both thesauriThesaurus terms associated with retrieval results (grouped by type) Slider used to indicate collection preference/weigh t Per results, the thumbnail, title, description, identifier and thesaurus terms are shown
- 25. The selected video appearsin the search field. Thesaurus terms associated with search results and selection. Play screen In this case, the user positioned the slider all the way to the right, indicating that he/she is interested in Open Images videos related to this VRT item. List of OpenImages videos related to this VRT video. Matching terms are highlighted.
- 26. Conclusions Conversion of structuredvocabularies to SKOS opens possibilities for connecting collections Interactive alignment produces many useful links Demonstrator shows possibilities of aligned collections Demonstrator will be extended whenmore collections are available > Complete NISV collection metadata (?) > Compete VIAA collection metadata(?)
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