ONTOLOGICAL MODEL OF THE KNOWLEDGE IN FOLKLORE DIGITAL LIBRARY

1. ONTOLOGICAL MODEL OF THE KNOWLEDGE IN FOLKLORE DIGITAL LIBRARY Desislava Paneva Institute of Mathematics and Informatics – Bulgarian Academy of Sciences dessi@cc.bas.bg Konstantin Rangochev Institute of Mathematics and Informatics – Bulgarian Academy of Sciences krangochev@yahoo.com Detelin Luchev Ethnographic Institute with Museum – Bulgarian Academy of Sciences luchev_detelin@abv.bg Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

2. Contents - Introduction - Ontological presentation of folklore knowledge - Bulgarian folklore ontology - Semantics of the complex folklore objects - Ideas for use of the ontology in Bulgarian folkloredigital library - Conclusion Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

3. Introduction Bulgarian folklore heritage • current state; • digitalization and presentation; • new methods for access, preservation, maintenance and distribution Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

4. “Knowledge Technologies for Creation of Digital Presentation and Significant Repositories of Folklore Heritage” (FolkKnow) project • Aims and tasks; • Target domain; • Target group of users; • Technologies that will be used; Bulgarian folklore ontology – the first stage of project work Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

5. Ontological Presentation of Folklore Knowledge • Ontology (according Grubber); • Use of ontologies - data-interchange; - data-integration; - data-querying; - data visualization, etc. Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

6. Bulgarian Folklore Ontology • Main purpose and scope of the ontology; data collection; • Conceptualization; Problems and discussions: • Segmentation of the folklore text; • The records of Bulgarian folklore are partial and they do not display the whole information; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

7. Bulgarian Folklore Ontology • Current folklore descriptions schemes don’t define clearly and unanimously their subject areas; • Transformation of the enormous objects` number into an end number of ontological units; • Opportunity for minimalization of the contextual defect; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

8. Bulgarian Folklore Ontology Defined thematic entities: • Identification and description; • Technical; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

9. Bulgarian Folklore Ontology Definition of the concepts and properties; The Bulgarian folklore ontology is composed of more than 650 concepts and properties; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

10. Part of the concepts and properties in the Bulgarian folklore ontology Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

11. Bulgarian Folklore Ontology has Folklore Object Record Place subclass Song type Schema type hasRecordPlace Data /…/Chichovite_kone /…/Radomirtsi isRecordPlaceOf Scheme of relationships between classes of objects in Bulgarian folklore ontology Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

12. Semantics of the Complex Folklore Objects Simple Folklore Objects: “song”, “food”, “magic”, etc. Complex Folklore Objects- archived objects which cannot be so clearly and simply(synonymously)classified: the same unit (material), according to its informational content, could be classified into different Folklore Object Types Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

13. Semantics of the Complex Folklore Objects CFO A1_146_2-14 - an interview containing information of the catholic community in the village of Oresh, Svishtov region, northernBulgaria. The emphasis in the interview is on the ritual, festival, and everyday life in the village, on the popular beliefs and knowledge. Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

14. Complex Folklore Object Folklore Object Type First Level Description Second Level Description Annunciation Ritual Calendar rituals Easter A1_146_2-14 Wedding rites Family rituals Funeral rites Working bee Labour rituals Spinning bee Other practices Rituals for rain For wood-nymphs Faith and Knowledge Demonological personages Dreams Interpretations Food Ritual food Scheme of semantic description of the complex folklore object A1_146_2-14 Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

15. Bulgarian Folklore Ontology Formalization: • Web Ontology Language (OWL); • OWL Protégé;

16. National investigations and projects for virtual presentation of ethnographic and folklore artefacts “Bulgarian Ethnographic Treasury” (http://mdl.cc.bas.bg/ethnography/); “Yuper” (http://yuper.hit.bg/); “Folklore Motives and Anthologies” (http://liternet.bg/); “WebFolk Bulgaria” (http://musicart.imbm.bas.bg/EN/Default.htm); “Living Human Treasures” (http://www.treasures.eubcc.bg/main.php) “Virtual Encyclopaedia of Bulgarian Iconography” (http://mdl.cc.bas.bg/), etc. Digital Library of Bulgarian Folklore – will be a valuable gallery of artefacts and knowledge for traditional Bulgarian culture, art and folklore; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

17. Implementation Opportunities that ontology will provide to the digital library of Bulgarian folklore: advanced approaches for folklore content representation, browsing and access; synchronous, diachronic and asynchronous point of view and analysis; etc. Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007

18. Conclusion Bulgarian folklore heritage will be semantically described and presented virtually; Addressed to a wide range of potential users; We popularize the idea of integration the traditional Bulgarian culture and folklore in the European virtual culture space; Final HUBUSKA Workshop, Kosice, Slovakia, 31 May – 1 June, 2007