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Mapping to Ontologies Nigam Shah nigam@stanford.edu
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NCBO: Key activities We create and maintain a library of biomedical ontologies. We build tools and Web services to enable the use of ontologies and their derivatives. We collaborate with scientific communities that develop and use ontologies.
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www.bioontology.org
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Total Monthly Visits to BioPortal
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http://rest.bioontology.org Ontology Services Download Traverse Search Comment Download Traverse Search Comment Widgets Tree-view Auto-complete Graph-view Tree-view Auto-complete Graph-view Annotation Data Access Mapping Services Create Download Upload Create Download Upload Views Term recognition Fetch “data” annotated with a given term http://bioportal.bioontology.org
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Mappings Root Term-1 Term-2 Term-3 Term-4 Term-5 R t1 t2 t4 t5 t6 t7 t3 Term-2 t1 Term-5 t5 Ontology A Upload or Download mapping subsets Ontology B
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Annotation as a Web service Process textual metadata to automatically tag text with as many ontology terms as possible.
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Code Annotator service Multiple ways to access Specific UI Excel 98 million calls, ~900 GB of data Elsevier UIMA platform
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ANNOTATION ANALYTICS - I Analysis of semantically tagged data
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Mining Annotations of Grants, Publications Grants from 1972 to 2007 30 funding agencies Publications from Medline Only “Journal articles”
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BioPortal + Protégé are tools for collaborative, shared development of such hierarchies (ontologies).
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Degree of Sponsorship
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Allocation of Funding
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Who funds what
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15 Credits Mark Musen, PI The team @ www.bioontology.org/project-team NIH Roadmap grant U54 HG004028 Credits Mark Musen, PI The team @ www.bioontology.org/project-team NIH Roadmap grant U54 HG004028
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ANNOTATION ANALYTICS - II Analysis of semantically tagged data
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Term – 1 : Term – n Syntactic types Frequency Term recognition tool NCBO Annotator NegEx Patterns NegEx Rules – Negation detection P1ICD9 P1T1, T2, no T4 …T5, T4, T3 …T4, T3, T1 T8, T9, T4 …T6, T8, T10 T1, T2, no T4 P2 P3 : : Pn Terms form a temporal series of tags Cohort of Interest Diseases Procedures Drugs BioPortal – knowledge graph Creating clean lexicons Annotation Workflow Further Analysis Text clinical note Terms Recognized Negation detection Generation of tagged data
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ROR of 2.058, CI of [1.804, 2.349] PRR of 1.828, CI of [1.645, 2.032] The uncorrected X 2 statistic has p-value < 10 -7. ROR=1.524, CI=[0.872, 2.666] PRR=1.508, CI=[0.8768, 2.594] X 2 p-value=0.06816. Adverse drug events
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