[ESIP-all] BESSIG meeting, Wed, 4/16, 4:15 - 6:00, Outlook
anne.wilson at lasp.colorado.edu
Thu Apr 10 00:58:31 EDT 2014
The monthly meeting of the Boulder Earth and Space Science Informatics
Group is next week. If you're in Boulder next week, do stop by. Note
that this month marks the 3rd anniversary of the BESSIG!
This month our own LASP students Mik Cox and Ty Traver will present
An Easy Bake Semantic Metadata Repository for Scientific Data
Mik Cox, Tyler Traver, Anne Wilson, Doug Lindholm, Laboratory for
Atmospheric and Space Physics (LASP), Don Elsborg, CU Faculty Affairs
This presentation will discuss the use of open source tools and the
tasks that remained to create a semantically enabled metadata repository.
The LASP Interactive Solar Irradiance Data Center, LISIRD, is a web site
that serves the lab's solar irradiance and related data products to the
public. LISIRD provides information about the data it offers as part of
its web page content, embedded in static HTML. At the same time, other
LASP web sites also provide the same information, such as sites
pertaining to specific missions or education and outreach. Keeping data
set information updated and in sync across web sites is a problem. Nor
is the information interoperable with emerging search and discovery tools.
To address this and other issues, we created a semantically enabled
metadata repository that holds information about our data. In
conjunction, we prototyped a new implementation of LISIRD that
dynamically renders page content, pulling metadata from the repository
and including in the page current, vetted metadata from a single,
definitive source. Other web pages can similarly pull this information
if they choose. Additionally we can now offer new semantic browse and
search capabilities, such as search of data sets by type (currently
spectral solar irradiance, total solar irradiance, and solar indices) or
over a particular spectral range provided by the user.
We can also render the metadata in various formats understandable to
other communities, such as SPASE for the heliophysics community and ISO
for the international community. This will allow us to federate with
sites that use those formats, allowing broader discovery of our data.
To date, metadata management at LASP has generally been done on a per
project, ad hoc basis. We are building applications on top of the
repository that provide CRUD (create, read, update, delete) capabilities
for metadata records to metadata 'owners' and 'curators'. We expect this
to help data managers to store and manage their metadata in a more
rigorous fashion should they choose to use it.
We heavily leveraged existing open source tools to create the
repository. In this talk we'll talk about using VIVO to create a
semantic database, LaTiS to fetch data and metadata, and AngularJS to
extending two existing ontologies to meet our space physics domain needs.
With these tools and some student time (though our students are
exceptional) we are achieving significantly increased capabilities at a
relatively low cost. We believe this tool combination could help
projects with limited resources achieve similar capabilities to manage
and provide access to metadata.
And, if that's not easy-bake enough for you, try this PC EZ-Bake Oven,
made especially for geeks: http://www.thinkgeek.com/stuff/41/ezbake.shtml.
for complete information.
Hope to see you there!
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