“ Semantics ” for Innovation in Visualization and Multimedia: Smarter Information Science. ICSTI Workshop February 8, 2011, Redmond WA. Peter Fox (RPI) [email protected] Tetherless World Constellation http://tw.rpi.edu. Please buckle your seatbelt. Working premise and the burden
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Tetherless World Constellation
Scientists – actually ANYONE - should be able to access and use a global, distributed knowledge base of scientific data that:
But… data and information is obtained by multiple means (instruments, models, analysis) using various (often opaque) protocols, in differing vocabularies, using (sometimes unstated) assumptions, with inconsistent (or non-existent) meta-data. It may be inconsistent, incomplete, evolving, and distributed AND created in a form that facilitates generation, not use (except by accident)
And … significant levels of semantic heterogeneity, large-scale data, complex data types, legacy systems, inflexible and unsustainable implementation technology…
From “Why EPO?”, a NASA internal
report on science education, 2005
Fox Informatics and Semantics, © 2008
AIRS vs. MODIS Terra
AIRS vs. MODIS Aqua
Correlation maps for Jan 1 – 16, 2008
Impact:Throw your hands up in the air and just walk away, silently…
MODIS Aqua vs. MODIS Terra
Known Issues: The difference of EQCT and Day Time Node, modulated by data-day definition, caused the included overpass time difference, which makes the artifact difference. See sample images:
BUT WHY ARE WE SAYING THIS IN WORDS?
Included Overpass time Difference
MODIS Terra vs. MODIS Aqua AOD Correlation
20080602 Fox VSTO et al.
Multiple depts/schools/programs ~ 35 (Post-doc, Staff, Grad, Ugrad)