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Semantic Integration and Retrieval of Multimedia Metadata Facilitating Business Interoperability from the Semantic Web Roberto García, Rosa Gil Universitat.

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Presentation on theme: "Semantic Integration and Retrieval of Multimedia Metadata Facilitating Business Interoperability from the Semantic Web Roberto García, Rosa Gil Universitat."— Presentation transcript:

1 Semantic Integration and Retrieval of Multimedia Metadata Facilitating Business Interoperability from the Semantic Web Roberto García, Rosa Gil Universitat de Lleida, Spain

2 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

3 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

4 Semantic Integration and Retrieval of Multimedia Metadata Introduction Networked Business to Business Interoperability Standardisation approach Define common lingua Usually based on an XML Schema formalisation No one-fits-all solution Proliferation: Biztalk, RosettaNet, ebXML, UML, BPEL… Sofistication: domain complexity Complexity + Heterogeneity Busines Information Systems difficult to manage and integrate

5 Semantic Integration and Retrieval of Multimedia Metadata Introduction Some existing standards: OASIS ebXML, Electronic Business using eXtensible Markup Language CPPA (Collaboration Protocol Profile and Agreement) BP (Business Process) … BPEL-WS, Web Services Business Process Execution Language UBL, Universal Business Language Microsoft BizTalk RosettaNet … Common aspects: non formal semantics and XML-based

6 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

7 Semantic Integration and Retrieval of Multimedia Metadata Proposal Semantic Metadata and Ontology facilitate management and integration Semantic Approach to BIS Related work: The Enterprise Ontology OWL (Web Ontology) EDI Ontology (OWL) RosettaNet Ontology (OWL)

8 Semantic Integration and Retrieval of Multimedia Metadata Proposal Limitations: Whole effort for each XML standard formalised Break with existing XML based BIS Lack momentum, ontological framework but no data Alternative: Automate XML formalisation (at least to some extent) Keep links to existing XML based BIS Also map existing data

9 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

10 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework ebXML, WSBPEL, UBL, RosettaNet,… XML Semantic Web XML Semantics Reuse Methodology ReDeFer implementation XSD2OWL: schema to ontology XML2RDF: XML instance data to RDF instances

11 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework ReDeFer XSD2OWL Mappings: owl:intersectionOf owl:unionOf sequence choice owl:RestrictioncomplexType//element owl:ClasscomplexType|group|attributeGroup rdf:Property owl:DatatypeProperty owl:ObjectProperty element|attribute OWLXML Schema

12 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework ebXML BP classes Hierarchy from XSD complex types and extension relations

13 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework Apply methodology to existing XML standards ebXML Collaboration Protocol Profile and Agreement (ebCPPA) cpp-cpa-v1_0.owl Business Process (ebBP) ebbp owl BPEL-WS Web Services Business Process Execution Language (WSBPEL) business-process.owl Integrate RosettaNet Ontology ( from LSDIS, Univ. of Georgia)

14 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework A generic XML semantics reuse methodology Already validated in other domains: Multimedia: MPEG-7 ontology (W3C MMSEM XG) Digital Rights Management: MPEG-21 ontologies (MPEG) Newspapers: IPTC, NewsML and NITF ontologies

15 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework: Instances ReDeFer XML2RDF: XML tree RDF graph. Deduce blank node types (i.e. XSD Complex Types) from XSD2OWL ontologies restrictions.

16 Semantic Integration and Retrieval of Multimedia Metadata Ontological Framework: Instances ebXML CPP example from XML to RDF (fragment) Includes XML tree but also XSD complex types

17 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

18 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework Load Ontological Framework

19 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework Integrate Ontologies OWL semantic relations for equivalence and inclusion: subClassOf, subPropertyOf, equivalentClass, equivalentProperty, sameIndividualAs, etc. More complex mappings using Semantic Web Rules Generate mappings: OWL Ontology Aligner User supervision

20 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework ebXML BP to ebXML CPA mappings ebbp:location ebbp:Role ebbp:type ebbp:mimeType ebbp:RoleType ebbp:ProcessSpecificationType ebbp:Start ebbp:ProcessSpecification ebbp:value ebbp:name ebbp:uri ebbp:BusinessAction ebbp:isAuthenticated Specification... cppa:location cppa:Role cppa:type cppa:mimetype cppa:RoleType cppa:ProcessSpecificationType cppa:Start cppa:ProcessSpecification cppa:value cppa:name cppa:uri cppa:action cppa:authenticated cppa:ProcessSpecification...

21 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework ebXML BP to BPEL-WS mappings ebbp:expression ebbp:expressionLanguage ebbp:name ebbp:pattern ebbp:Variable ebbp:PreCondition ebbp:BusinessPartnerRole... bpel:expression bpel:expressionLanguage bpel:name bpel:pattern bpel:variable bpel:condition bpel:partnerRole...

22 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework

23 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework

24 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework Semantics into practice Scenario: the previous ebXML CPP example Semantics formalised by ebXML CPPA Ontology Semantics connected to data through references to: Classes, and their hierarchy, for XSD complex types Properties, and their hierarchy/restrictions, for XSD elements

25 Semantic Integration and Retrieval of Multimedia Metadata Integration Framework Semantics into practice Task: get all SignalEnvelope types XML tools: many XQueries and aware of schema structure Semantic tools: 1 query, unaware and support changes PREFIX ebbp: SELECT ?r WHERE (?r ebbp:SignalEnvelopeType)

26 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

27 Semantic Integration and Retrieval of Multimedia Metadata Conclusions

28 Semantic Integration and Retrieval of Multimedia Metadata Conclusions XSD2OWL take profit from XML Schema hidden semantics We formalise them when building ontologies, but also implicitly when we make XML Schemas Ontologies from XSD ebXML, BPEL-WS… and more to come (automatic) First formalisation step Hook more detailed semantics Map to other ontologies

29 Semantic Integration and Retrieval of Multimedia Metadata Conclusions XML2RDF: reuse existing XML metadata to add momentum to Semantic Web BIS Model XML tree as graph Enrich with links to concepts in ontologies Facilitate implementation using Semantic Web tools (DL reasoners, rule engines, semantic queries,…)

30 Semantic Integration and Retrieval of Multimedia Metadata Contents Introduction Proposal Ontological framework Integration framework Conclusions Future Work

31 Semantic Integration and Retrieval of Multimedia Metadata Future Work Map other Business XML Schemas to OWL More detailed integration (also rules) Advanced ontology alignment tools Formal business ontology as hub for integration Demonstrator: simple semantic BIS …

32 Semantic Integration and Retrieval of Multimedia Metadata Thank you for your attention More at: …/redefer (mapping tools) …/ontologies/bizontos (eBiz ontologies) Contact:


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