1 / 9

Community Ontologies for Earth System Science

Community Ontologies for Earth System Science. Rob Raskin NASA/Jet Propulsion Laboratory Pasadena, CA April 3, 2008. Semantic Web for Earth and Environmental Terminology (SWEET). Concept space written in OWL Initial focus to assist search for data resources Funded by NASA

mlees
Télécharger la présentation

Community Ontologies for Earth System Science

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Community Ontologies for Earth System Science Rob Raskin NASA/Jet Propulsion Laboratory Pasadena, CA April 3, 2008

  2. Semantic Web for Earth and Environmental Terminology (SWEET) • Concept space written in OWL • Initial focus to assist search for data resources • Funded by NASA • Later focus to serve as community standard for Earth system science • Enables scalableclassification of concepts

  3. SWEET 1.0 Ontologies Faceted Ontologies Living Substances Non-Living Substances Integrative Ontologies Natural Phenomena Physical Processes Human Activities Earth Realm Data Physical Properties Space Time Units Numerics

  4. SWEET 2.0 Modular Design Math Science Geoscience Processes Geophysical Phenomena Applications importation

  5. SWEET 2.0 Ontologies

  6. SWEET Numerical Ontologies • Intervals, numeric relations (<,>) • Cartesian products • Functions, derivatives • Fuzzy concepts • “near” • Spatial concepts • 0-D, 1-D, 2-D, and 3-D objects • Coordinate systems • Above, inside, etc. • Temporal concepts • Instant, durations, geological time scales

  7. SWEET Data Ontology • Dataset characteristics • Format, data model, dimensions, … • Provenance • Source, processing history, … • Parameters • Scale factors, offsets, … • Data services • Subsetting, reprojection, … • Quality measures • Special values • Missing, land, sea, ice, ...

  8. PlanetOnt.org

  9. Resources • SWEET • http://sweet.jpl.nasa.gov • Ontology development/sharing site • http://PlanetOnt.org • Noesis (search tool) • http://noesis.itsc.uah.edu

More Related