Ontology Basics'

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Ontology Basics.

• Jason Aronovitz, DO
• Director Medical Informatics
• American Board of Internal Medicine

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(No Transcript)
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Definition of Ontology

• An ontology defines a set of representational
  primitives with which to model a domain of
  knowledge or discourse.
• The representational primitives are typically
• Classes (or sets)
• Attributes (or properties)
• Relationships (relations among class members).

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Why build an Ontology

• To share common understanding of the structure of
  information
• among people
• among software agents
• To enable reuse of domain knowledge
• to avoid re-inventing the wheel
• to introduce standards to allow interoperability
• To enable research of domain knowledge
• Common language to measure domain

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What are we want to accomplish

• Glossary
• Taxonomy
• Ontology
• Knowledge Base
• Agents Interoperability Domain Sharing

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Glossary

• Affective growth in feelings or emotional areas.
• Cognitive mental skills
• Comprehension Understand the meaning,
  translation, interpolation, and interpretation of
  instructions and problems.
• Knowledge Recall data or information.
• Perception The ability to use sensory cues to
  guide motor activity.
• Psychomotor manual or physical skills
• Receiving Phenomena Awareness, willingness to
  hear, selected attention.
• Valuing The worth or value a person attaches to
  a particular object, phenomenon, or behavior. 

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Blooms Taxonomy
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Classes and Slots
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Facets
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Instances
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Knowledge Base
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Uses within PI world

• Exchange data among systems
• Performance Data, Activity Data, Eligibility data
• Provide services for answering queries
• Search for a learning activity offered by other
  publishers.
• Publish reusable knowledge bases
• Clearinghouse of all PI activities to easily
  identify gaps.
• Facilitate interoperability across multiple,
  heterogeneous systems and databases
• Holy Grail for EHRs
• Data flows from EHR to PI actvitity

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Examples

• Ontologies
• SNOMED CT
• Gene Ontology
• MeSH
• Taxonomy
• ICD-9

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Web Versions

• Web 1.0 The web
• Information sharing
• HTML
• Web 2.0 The social web
• Build a critical mass
• No programming need
• Blogs, Myspace, Facebook
• Web 3.0 The semantic web
• Smart agents find info you
• OWL -Web Ontology Language
• Twine

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Web Agents

• "The agent promptly retrieved information about
  Mom's prescribed treatment from the doctor's
  agent, looked up several lists of providers, and
  checked for the ones in-plan for Mom's insurance
  within a 20-mile radius of her home and with a
  rating of excellent on trusted rating services."
• Lucy's Semantic Web agent can also check
  potential appointment times against her mother's
  busy schedule, reschedule other appointments if
  need be, and moreall on its own, without help
  from Lucy.

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The First Step for PI Ontology

• Build the PI Controlled Vocabulary
• Glossary of terms (definitions)
• Organized into classes and sub classes
• Dr. Davis is going to give an overview of the
  language of PI.
• My Contact Information
• Jaronovitz_at_abim.org