TWC Exploratory visualization of earth science data in a semantic web context Xiaogang (Marshall) Ma, Peter Fox Tetherless World Constellation Rensselaer Polytechnic Institute AGU Fall Meeting 2012, San Francisco, Session IN53D. Semantics and Cyberinfrastructures for Next Generation Science II 12/07/2012
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Exploratory visualization of earth science data in a Semantic Web context
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TWC Exploratory visualization of earth science
data in a semantic web context
Xiaogang (Marshall) Ma, Peter Fox
Tetherless World Constellation
Rensselaer Polytechnic Institute
AGU Fall Meeting 2012, San Francisco,
Session IN53D. Semantics and Cyberinfrastructures for Next Generation Science II
12/07/2012
TWC What is exploratory visualization
• “the process that involves a discipline
expert creating maps and other
graphics while dealing with relatively
unknown geographic data”
• “Visualization too often becomes an
end product of scientific analysis,
rather than an exploration tool that
scientists can use throughout the
research life cycle.”
(Kraak, 2008)
(Fox and Hendler, 2011) 2
TWC Motivation & Objective
• (Big) Motivation
– Online services of earth science data have been
increasingly built in recent years.
– Tools and services supporting information retrieval with
those data services are still underdeveloped.
• (Small) Objective
– A pilot study: Annotation, visualization, and filtration of
rock age (geologic time) information from online
geological map services
…
3
TWC Idea
Data Information Knowledge
Context
Presentation
Organization
Integration
Conversation
Creation
Gathering
Experience
4
TWC
5
Idea
Ontology
Data Information Knowledge
Context
Presentation
Organization
Integration
Conversation
Creation
Gathering
Experience
Geological
map
services
Exploratory
Visualization
Semantic Web
TWC Actions
• Data source: reuse available services
• Annotation: build and reuse ontologies
• Visualization: a channel between rock age data
services and annotation and
filtration operations
• Filtration: a sample of exploratory
visualization
6
TWC Data source
• Web Map Service (WMS) of British Geological
Survey
– WMS: a HTTP interface for requesting geo-registered
map images from distributed geospatial databases (http://www.opengeospatial.org/standards/wms)