1 eXtended Metadata Registry (XMDR) Ecoterm Rome, Italy May 17, 2006 Bruce Bargmeyer, Lawrence Berkley National Laboratory University of California Tel:

2 XMDR Project Draws Together Users ISO/IEC Metadata Registries Terminology CONCEPT Referent Refers To Symbolizes Stands For “Rose”, “ClipArt” Metadata Registry Terminology Thesaurus Taxonomy Data Standards Ontology Structured Metadata ISO/IEC JTC 1/SC 32 ISO TC 37 & …

3 XMDR Direction ISO/IEC JTC 1/SC 32 Us ers ISO/IEC Metadata Registries Terminology CONCEPT Referent Refers To Symbolizes Stands For “Rose”, “ClipArt” Metadata Registry Terminology Thesaurus Taxonomy Data Standards Ontology Structured Metadata ISO TC 37 & … Data Admin.

4 XMDR Direction ISO/IEC JTC 1/SC 32 Us ers ISO/IEC Metadata Registries Terminology CONCEPT Referent Refers To Symbolizes Stands For “Rose”, “ClipArt” Metadata Registry Terminology Thesaurus Taxonomy Data Standards Ontology Structured Metadata ISO TC 37 & … Semantic Computing

5 Metadata Registry Extensions F Register (and manage) any semantics that are useful for managing data. u E.g., this may include registering not only permissible values (concepts), definitions, but may extend to registration of the full concept systems in which the permissible values are found. u E.g., may want to register keywords, thesauri, taxonomies, ontologies, axiomatized ontologies…. F Support traditional data management and data administration F Lay Foundation for semantic computing: Semantics Service Oriented Architecture, Semantic Grids, Semantics based workflows, Semantic Web ….

6 XMDR Project Results F Design for next generation metadata registries, expressed as a standard—ISO/IEC family of standards F XMDR Prototype, open source software F Semantic content in prototype F Demonstrations for healthcare and the environment F Ecoinformatics test bed u Demonstration using water data and concept systems

7 XMDR: Register Any Concept System or Knowledge Organization System (KOS) F Keywords F Glossaries F Gazetteers F Thesauri F Taxonomies F Ontologies F Axiomatized Ontologies

8 XMDR Content List (partial) NBII Biocomplexity Thesaurus NCI Thesaurus National Cancer Institute Thesaurus NCI Data Elements (National Cancer Institute Data Standards Registry UMLS (non-proprietary portions) GEMET (General Multilingual Environmental Thesaurus) (New project to get Chinese terms for the GEMET concepts) EDR Data Elements (Environmental Data Registry) USGS Geographic Names Information System (GNIS) HL7 Terminology, Data Elements Mouse Anatomy GO (Gene Ontology) EPA Web Registry Controlled Vocabulary BioPAX Ontology NASA SWEET Ontologies AGROVOC …

9 XMDR: Register Ontologies Concept Geographic Area Geographic Sub-Area Country Country Identifier Country NameCountry Code Short Name ISO Character Code ISO Character Code Long Name Distributor Country Name Mailing Address Country Name ISO Numeric Code FIPS Code

10 XMDR: Register Graphs Directed Graph Directed Acyclic Graph Graph Undirected Graph Bipartite Graph Partial Order Graph Faceted Classification Clique Partial Order Tree Tree Lattice Ordered Tree Note: not all bipartite graphs are undirected. Graph Taxonomy:

11 Goose Duck Waterfowl Represent concepts and relationships as nodes and edges in formal graph structures e.g., “is-a” hierarchies. Duck Goose Waterfowl is-a CanvasbackBufflehead Include Concept System Semantics in Metadata Registries

12 Inference PolioSmallpox Infectious Disease Disease is-a Diabetes Heart disease Chronic Disease is-a Signifies inferred is-a relationship

13 ISO/IEC Metadata Registries + XMDR F Register and manage semantics that are or can be harmonized and vetted by some Community of Interest (COI) F Provide Semantic Services F E.g., the semantics can be referenced by RDF statements (subjects, predicates, objects) F The semantics can be used for Semantic Web and Semantic Computing u A “vocabulary” that is grounded for some COI

14 Ontology Editor Protege OWL Ontology XMDR Prototype: Modular Architecture-- Initial Implemented Modules MetadataValidator AuthenticationService MappingEngine Registry External Interface Generalization Composition (tight ownership) Aggregation (loose ownership) Jena, Xerces Java RetrievalIndex FullTextIndex Lucene LogicBasedIndex Jena, OWI KS Racer RegistryStore WritableRegistryStore Subversion

15 XMDR Project Collaboration F Collaborative, interagency effort u EPA, USGS, NCI, Mayo Clinic, DOD, LBNL …& others F Draws on and contributes to interagency/International Cooperation on Ecoinformatics F Interacts with many organizations around the world through ISO/IEC standards committees

16 Where does this fit with Ecoterm? F Ecoterm organizations as sources of content F Ecoterm organizations as collaborators/testers F Ecoterm organizations as potential users of Open Source software F Potential collaboration on R&D projects e.g., under European Commission Framework Program 7

17 Concept System Store Users Concept systems: Keywords Controlled Vocabularies Thesauri Taxonomies Ontologies Axiomatized Ontologies (Essentially graphs: node-relation-node + axioms) } Metadata Registry Concept System Thesaurus Themes Data Standards Ontology GEMET Structured Metadata

18 Management of Concept Systems Metadata Registry Concept System Thesaurus Themes Data Standards Ontology GEMET Structured Metadata Users Concept system: Registration Harmonization Standardization Acceptance (vetting) Mapping (correspondences) }

19 Life Cycle Management Metadata Registry Concept System Thesaurus Themes Data Standards Ontology GEMET Structured Metadata Users Life cycle management: Data and Concept systems (ontologies) }

20 Grounding Semantics Metadata Registry Concept System Thesaurus Themes Data Standards Ontology GEMET Structured Metadata Users Registries Semantic Web RDF Triples Subject Verb Object Ontologies

21 Refined XMDR subclasses improve organization & inference

22 See F