Technology Exploration Semantics Karen Moe NASA Earth Science

Technology Exploration – Semantics Karen Moe NASA Earth Science Technology Office WGISS-37 Meeting April 14 -18, 2014

Agenda Overview of Semantic Technology Development • SWEET: Semantic Web for Earth and Environmental Terminology • SESDI: Semantically Enabled Scientific Data Integration • Community efforts on semantic web Goal • Terminology => Taxonomy => Ontology => Tools for Discovery & Use of satellite-derived knowledge

Semantic Web for Earth and Environmental Terminology SWEET is a concept space • Enable scalable classification of Earth system science concepts (and expanded to space science) • Anyone can import, expand specialize the work of others - No need to regenerate a physics, chemistry, or math ontology • Concept space is translatable into other languages/cultures using ‘same. As’ notions • SWEET initially created to capture relationships between GCMD keywords - Controlled keywords represented as a taxonomy - Uncontrolled keywords - data provider may submit additional uncontrolled keywords within their metadata records Initial development: Rob Raskin/JPL Current: Thomas Huang/JPL

SWEET – Upper Level Earth Science Ontology • v 1. 0 - 01/2004 DAML+OIL - to capture relationships between GCMD keywords • v 2. 0 - 03/2009 OWL • v 2. 1 - 05/2011 OWL-DL • v 2. 2 - 06/2011 OWL Full • v 2. 3 - 09/2011 OWL Full highly modular with over 6000 concepts in 200 separate ontologies • v 2. 4 – in Progress (T. Huang/JPL for DARPA) SWEET is an Upper-Level Ontology • Common definitions for terms use in multiple disciplines • Common language in support of community and multidisciplinary activities • Common ‘properties’ (relations) for tool developers • Reduce burden on creators of specialized domain ontologies

SWEET Information • Current SWEET Users (2014) • ESML - Earth Science Markup Language • ESIP - Earth Science Information Partner Federation • GEON - Geosciences Network • GENESIS - Global Environmental & Earth Science Information System • IRI - International Research Institute (Columbia) • LEAD - Linked Environments for Atmospheric Discovery • MMI - Marine Metadata Initiative • NOESIS – Semantic Search Engine and Resource Aggregator for Atmospheric Science • PEa. CE - Pacific Ecoinformatics and Computational Ecology • SESDI - Semantically Enabled Science Data Integration • VSTO - Virtual Solar-Terrestrial Observatory • AVM – DARPA Adaptive Vehicle Make The SWEET distribution site http: //sweet. jpl. nasa. gov averages over 200 K hit each month across the globe by SWEET-enabled applications and tools Thomas Huang Jet Propulsion Laboratory 4800 Oak Grove Drive, Mail Stop 158 -242, Pasadena, CA 91109 Phone: 818. 354. 2747, Cell: 626. 318. 4637, Email: thomas. huang@jpl. nasa. gov

Semantically Enabled Scientific Data Integration: SESDI Methodology Benedict, J. , D. Mc. Ginness, and P. Fox, AGU 2007

ESIP Federation http: //wiki. esipfed. org/index. php/Semantic_Web

https: //earthdata. nasa. gov/esdswg/technology-infusiontiwg/semantic-web/earth-science-data-system-projects-using -semantic-web

Next Steps • Need for information content to support CEOS disasters pilots • Proposal for collaboration between WGISS and ESIP Federation to develop methodology to identify key terms in Disaster domains - Terminology - Classification - Relationships • WGISS-37 discussion tomorrow - Support to CEOS WG Disasters