Clinical Quality Linked Data on

health.data.gov

George Thomas, HHSSemTech2011, 2011-06-08Franciscan B, 2:20-2:45pm

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This Presentation

• Data.gov– 2010: EOP/OMB and GSA, RPI

– 2011: add HHS/CMS

• Clinical Quality Linked Data– health.data.gov

– Hospital Compare: tools, metadata, data

• Community of Practice– W3C Government Linked Data Working Group

• Community of Interest– Data.gov PMO Semantic Web / Linked Data Team

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data.gov 2010

• EOP and OMB– Open Gov Directive

• ‘TPC’

– Fed CIO Vivek Kundra

• ‘Democratizing Data’

• OMB and GSA– OCSIT

• Data.gov PMO

– Semantic Web• RPI, Virtuoso

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HHS and CMS

• CTO @todd_park– /open innovation

• ‘unleash the mojo!’

• OCIO– Dep CIO, Chief Arch

• OCSQ– Hospital Compare

– Data.Medicare.gov

– Clinical Quality

Linked Data!

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health.data.gov 2011

• Health Community– Mashups

• public and private

– Drupal, Socrata• showcase, challenges

• blogs, feeds, syndication

• Linked Data– Virtuoso serves:

• /def/{vocab}/{concept}

• /id/{concept}/{instance}

• /doc/{concept}/{instance}.ext

• /dataset/{filename}/{date}

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Tools

• Google Refine + DERI RDF extension– Graph prototyping, source.tsv lifting

• Top Braid Composer– Vocabulary modeling (RDFS)

– Initial instance data testing (inferences and queries)

• Jena– schemagen .rdfs to .java

– ETL source.tsv to source.rdf/ttl

• Virtuoso – Quad store, HTTP conneg / url_rewrite rules

– Faceted search and browse, REST API’s

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Hospital Compare Metadata

• Created a handful of (generic and domain specific)

small component vocabularies– health.data.gov/def/{vocab-name}/{Class-or-predicate}

• /def/hospital/Hospital

• /def/compare/Condition, /Measure, /Metric

– reference.data.gov/def/govdata

• /Record, /RecordSet, /State, /County, /Country

• Reused another handful (the usual)– VoID, FOAF, DC

– W3C Org, Vcard

• Evolve toward SKOS, SDMX-RDF and QB ?

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Hospital Compare Data

• They don’t call it Virtuoso for nothing…– 303 from /id NIR to /doc IR

– Serves a variety of representation formats

• RDF/XML, RDF+JSON, Turtle, N-triples, CSV,

• Atom/OData feeds have wide usage scenarios

– All data about a particular Hospital over time

– All instances of Measure(s) as they evolve over time

– All data for a particular Report/Survey dataset over time …

– Follow your nose with faceted search and browse services

• Discover the data model while building SPARQL queries

– Whether you’re a carbon or silicon based agent

• ‘Sponge’ external sites, expose RDB’s as RDF, …

more…

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Community of Practice

• W3C Government Linked Data Working Group– Member oriented, focused on SemWeb impl’s of GLD

– I’m a co-chair along with Bernadette Hyland

• Of Talis, Inc. – she’s also here at SemTech2011

– And the expert advice and support of W3C’s Sandro Hawk!

– Expected GLD charter

• Community Dir, Publishing Best Practices, Standard Vocabs

• Complements eGov IG charter

– First Face to Face GLD Meeting

• 6/29-30 in Washington, DC area at NITRD

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Community of Interest

• Data.gov PMO Semantic Web / Linked Data Team– Open to the public!

• Ask me for telecon and webshare info if you’re interested in

participating

• Ongoing work– EPA Linked Data

• Facilities and Chemical Registries

– HHS and CMS Linked Data

• Additional Clinical Quality domains (other ‘compare’ data)

• Cross domain correlation

– Additional mashup (visualization) challenges

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Thank You! Questions?

george at thomas dot name