The VRC Project

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The VRC Project

  1. 1. The VRC Project Towards a cataloguing standard for open data Alick Macdonnel McLean Augusto Palombini fabrizio giudici
  2. 2. Agenda • Origins and philosophy of SUF Media Lab/VRC: open data, the community • Commonality of interests between VRC original users and archaeologists • Technical realization with open source tools temple of Diana, Cefalù, photo A.M. McLean
  3. 3. Origins and philosophy of SUF Media Lab/VRC: open data, community
  4. 4. Origins and Philosophy • institutional origins of the VRC at SUF • modest origins • pool slide collections when digitizing • catalog across disciplines • each faculty agrees to share data and images with others
  5. 5. Data community • extensible, rich cataloging blessing and challenge • extend pool of catalogers by extending pool of users/institutions • expand based on original model • distribute program in exchange for user engagement in data community through cataloging and image contributions
  6. 6. Commonality of interests between VRC original users and archaeologists
  7. 7. Common Interests? • Commonality of interest between VRC original users and archaeologists: • public utility of open data and transparency of processes • flexible classification as a powerful research tool
  8. 8. Archaeological catalogation: the state of the art Traditional approach: Forcing different objects into a main classification scheme Advantages: ● diffusion of standard models ● easy queries on fields Problems: ● adapting the same model to different elements ● problems in defining standard chronological notations
  9. 9. Archaeological catalogation: the state of the art Traditional approach: Forcing different objects into a main classification scheme Another fundamental problem ●“hard defined” relationships among different attributes don't allow their changing through time and the spread of new properties and classification criteria
  10. 10. ontologic VS episthemologic aspect of classification. Classification as euristhic tool “L'eidos è un dato o un posto? lo trovo nella cosa o lo applico alla cosa per renderla intelligibile?” ... “Si è irrigidita l'esperienza in un modello; nulla dal punto di vista epistemologico interviene ancora per affermare o negare che l'esperienza contenesse anche gli aspetti che ne sono stati isolati, accanto a infiniti altri tipi di correlazione” (U.Eco, la Strutttura assente, 1968)
  11. 11. Technical realization with open source tools
  12. 12. VRC - Structure ● Components: – Cataloguing core – Web interface – Modules for integration with rich-clients – Photographic module ● manages: metadata, “camera raw” formats, grid computing, etc... ● Entirely written in Java – Cross-platform, Linux-ready
  13. 13. Entities and Relations ● Art objects (paintings, ● Relates entities to entities sculptures, buildings,...) and entities to files ● Agents (painters, ● Basic relationships sponsors, owners, ...) – “Made by”, “Owned ● Locations (geographical, by”, “Located at”, ... geopolitical, historical, ● Temporal relationships ...) – Associated to date ● Materials ranges ● GPS tags – Date precision: from d/m/y to century or ● Other information era
  14. 14. Database vs Semantic Web ● DB: entity and relations – ad-hoc – local, not universal – different DB-based systems are “islands” ● Semantic Web – RDF: Resource Description Framework – Subject / Relation / Object – XML based – FLOSS resources: Jena, SPARQL ● RDF as a “lingua franca” ● Peer-to-peer search
  15. 15. “Ontologies” ● Data models with relations – classes – attributes – relations ● OWL – Web Ontology Language ● Standard ontologies ● More can be defined – Requires pool of expert, agreement
  16. 16. An example
  17. 17. Concluding Remarks • what does SUF need to go open source? • sharing high-quality, vetted data for sites across Italy and the world • extension of data across institutions, disciplines, geography and time • how to structure data community? Villa Rossa & garden, Syracuse University in Florence • concerns of SUF • concerns of all data community members • how to express interest in VRC data community: • write sufmedialab@syr.fi.it Alick McLean and Emily Schiavone, media librarian
  18. 18. • Prof. Alick Macdonnel McLean Syracuse University ammclean@syr.fi.it http://www.syr.fi.it/study-abroad-florence-media-lab.php • Dr. Augusto Palombini CNR VHLab Rome augusto.palombini@itabc.cnr.it • Ing. Fabrizio Giudici TidalWave / SourceSense fabrizio.giudici@tidalwave.it

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