Universität Innsbruck Leopold Franzens  Copyright 2007 DERI Innsbruck www.deri.at EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel WP 2 – Media

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  • OutlineWorkpackage OverviewRDF Storage and Retrieval ServiceMetadata MappingArchivist Metadata ManagementFuture WorkPublications

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • Workpackage overviewT2.2 Ontology and Semantics for Media Object Representation (Completed)Audio and speech ontology integrated to the framework. Still need testing of the representation functionalities of the speech extension. MARC import module delivered. To be integrated in the archivist application.T2.3 Ontology Management Environment (Ongoing)WSMT Ontology management environment delivered. Still need to enhance the ontology language integration part (release planned in January)General architecture delivered (see publications)Web prototype delivered. The code was re-factored enabling its sharing. Plan is to set it on http://www.easaier.orgRDF storage service just released (see later). Support to other partners will be provided for writing SPARQL queries.Archivist application for ontology population still to be realized. (Start in January, see later)

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalUniversitt InnsbruckLeopold FranzensEASAIER 18 Month Coordination Meeting, Tel Aviv, Israel Copyright 2006 DERI Innsbruck www.deri.atWP2 Media Semantics and Ontologies

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalThe Big Picture

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalThe Big Picture

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and Retrieval

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalPersistent StorageInsert, Update & Delete OperationsIntended for RDF Metadata generated from Feature Extractorsobject identifiers, metadata, and related mediaRetrievalSPARQL Query EndpointDecoupled ComponentAccess via HTTP REST or Java API

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalSesame 2 FrameworkChosen after investigation of popular Semantic Web Frameworks Boca, Jena, Joseki, Virtuoso, RDF RAP, etc.Open Source (BSD license)Modularized architectureStorageFile System, Memory, RDBMS StorageTaken from http://www.openrdf.org/doc/sesame2/users/ch03.html

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalSesame 2 ArchitectureRDF ModelRio SAIL APISAIL Query ModelSeRQLSPARQLRepository Access APIHTTP ServerapplicationapplicationHTTP / SPARQL protocolTaken from J. Broekstra et al - ESWC'06 Tutorial: Application Development with the Sesame Framework

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalProgrammatic (Remote) AccessStorage (Insert, Update, Delete Operations)Sesame 2 Java APIRDF Statements: From File, Stream, utilizing Java I/OIndividual RDF StatementsHTTP REST APIClient libraries available for the majority of programming languagesAllows RDF/XML, N-Triple, N3, ...Retrieval over SPARQL EndpointSesame 2 Java APIHTTP REST APIReturns results in SPARQL Query Results XML Format

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalSesame 2 FrameworkStorageMemory, File System, or Relational DatabaseAllows RDF/XML, N-Triples, N3, ...RetrievalSPARQL EndpointResults in SPARQL Results Format (XML)Programmatic AccessSesame 2 Java APIHTTP Protocolclient libraries available for majority of programming languages

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalProgrammatic Access ExampleGET /sesame/repositories/easaier?query=select * where {?a ?b ?c} HTTP/1.1Host: localhostAccept: application/sparql-results+xml POST /sesame/repositories/easaier HTTP/1.1Host: localhost Content-Type: application/rdf+xml

    [RDF statements]

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalTutorial

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • RDF Storage and RetrievalSesame 2 FrameworkNative Inferencing Support for RDFS & OWL-Lite FragmentExtensibleSupport for External Reasoners and Rule EnginesOWLIM OWL Reasoner being ported to Sesame2 (WSML support)Transaction SupportContext Support

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • The Archivist ApplicationAllows the archivist to populate the archive byUploading Audio ContentSelection of the feature extraction algorithmsImporting new external sources (ex:Hotbed)Importing Metadata (e.g. MARC)Subsequently Update RDF Store & Binary StoreConfigure parameters of the client applications.

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • Metadata ManagementMARC21 Metadata MappingUtilisation of MARCXML Toolkit (from loc.gov)MARC21 -> MARCXML ConversionXSLT Transformation to RDF Dublin CoreOpen Issue / TODOAddress special fields according to the MusicOntologyMETSAdministrative Format (LOC)On-demand integration of other archives.WSML Conversion with OWL-DL

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • Future WorkContinue and finish the OWL-WSML conversion.Develop the archivist applicationSupport other partners with usage of the RDF storage and query functionalitiesSupport the integration of other archives.Prepare the report on metadata management infrastructure and ontology language for media objects

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

  • PublicationsPublicationsMichael Luger, Ying Ding, Franois Scharffe, Rubing Duan, Zhixian Yan. EASAIER: Semantic Music Retrieval Portal. Poster and Demonstration, SAMT Conference, Genova, Italy, 2007.Michael Luger, Ying Ding, Zhixian Yan, Franois Scharffe, Rubing Duan, Yves Raimond, Luc Barthlmy, Josh Reiss. EASAIER: Semantic Music Retrieval Portal. Poster and Demonstration, ISWC, Busan, Korea, 2007.Franois Scharffe, Yves Raimond, Luc Barthlmy, Ying Ding, and Michael Luger. Publishing and Accessing Digital Archives using the EASAIER Framework. Workshop on cultural heritage and the semantic web. ISWC, Busan, Korea, 2007.Franois Scharffe. Ontology and Semantic Web Aspects. Enabling Access to Sound Archives Workshop. Minerva Conference, Jerusalem, 2007.

    EASAIER 18 Month Coordination Meeting, Tel Aviv, Israel

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