[esip-semanticweb] Notes from Tuesday Jan 9, 2007 telecon. - Please send comments/corrections to me.
Peter Fox
pfox at ucar.edu
Thu Feb 1 02:33:44 EST 2007
==Notes from Tuesday Jan 9, 2007 telecon.==
===Attending===
Peter Fox, Rob Raskin, Liping Di, Meixia Deng, Karen Moe.
Also posted on the ESIP SW wiki: see http://wiki.esipfed.org/
index.php/Semantic_Web#SW_Cluster_Telecon_Notes
===Agenda===
* Introductions -
* Followup from ESIP meeting in Portland (notes posted on cluster wiki).
Rob: suggested a focus on joint projects - developing ontologies and
and tools for
The Earth Information Exchange (EIE).
Meixia: suggsted a focus on ontologies merging, especially
technologies to automate
this work.
There are some tools semi-automatic software tools for mapping and
matching -and for concept alignment Most are light weight but show
potential matches, and suggest
We agreed that an activity for the cluster would be to try out these
tools and post a survey of concept decomposition tools on the wiki
Karen: noted that there was very good support for the development of
use cases and documenting them,
a small group is working in the use case template - which will be on
the wiki
All agreed: two phases - immediate demos and then use cases that
provide an application for using
and demonstrating semantic technologies.
Peter: schedule at least an hour - for cluster meeting in summer
* Set agenda for monthly telecons
Topic 1 - development and agreement on a service ontology
Currently, the OGC ISO 19119 provides a high level class of service -
not too useful for general use,
since there is a clear ESIP need for service chaining that covers
grounding, model, profile at type level
modeled, but they do not do have grounding at type level, but do have
it at instance level.
GMU has a prototype for the use case of wildfire prediction. However,
the
data are not available as a service.
Topic 2 - datatype ontology
Data-types are critical, ISO 19119 provides specifications for image
manipulation, geo-location, etc. but
ISO 19115 does not have data types, it has metadata.
GCMD has data taxonomy but is it encoded.... Luis Bermudez has been
working on an encoding of
these data types.
However, there are multiple classification schema - based on
scientific use/meaning - e.g. nearIR band...
geo-rectification and format conversion.
This is relatively little comprehensive work out there. The OGC work
is driven by test beds and there
are a few starting to appear, The W3 activity has started. It was
suggested that the military,
and private companies are likely to have implementations but not to
share.
SWEET does feature data types for use with sciflo. e.g. level 2 and 3
and differs from swath and grid.
Topic 3 - community process for ontology development, using
www.planetont.org
In addition, there is SCOOP - MMI project for ontology matching, no
use cases are available yet.
They are currently working on instruments but other work is specific
to marine biology. Tools are
available to convert a taxonomy to owl, ut for mapping there are no
tools. John Graybeal is key in this effort.
UAH - also has the beginnings of data mining/service ontologies they
are willing to share and
with NOESIS now in beta release they have experience with using SWEET
and will contribute to
community discussions and evolution for SWEET.
Topic 4 - workshop 1/2 or 1 day at ESIP summer on ontol - before or
after.
Topic 5 - demonstration projects
+ Thetus - company in Portland, on-line demo, focus on SW, KM, lot
military, Danielle Forsythe
agreed to donate software to Federation. Webinar on Jan 18. sees
fed as a set of SW resources
rather than a place to sell.
+ GMU projects - need a catchy name!
+ NOESIS
+ SESDI/VSTO
+ others...
Topic 6 - EIE semantic components - purpose to classify product and
services as well as knowledge/skills
science/technical interests, in an ontology for discovery (first),
and description so they could be
used, services can be invoked, e.g. chaining or otherwise providing
visualization search.
Framework for classification. what other products beyond data products.
operations, read, subset, re-project,
Smart use of services. Do MORE than what GOS does. Create new info,
set up workflows, etc. Rob is
the ESIP lead on this.
===Other items===
Karen asked about GCMD and Melanie indicated that semantics is a
paradigm shift for them, ontology is
much more general and formal than their structured vocabulary but
they are providing information in
an OWL export format.
Lola Olsen was suggested as a liaison (or to appoint one) to this
cluster.
Rob - Who else to invite, encourage? Suggestions were : MMI, Benno
Blummenthal, Siri Joda,
and would need an association with a federation member to participate.
NOAA data centers would be welcome NODC, NCDC, NGDC, and also USGS?
===Next telecon===
Tuesday, February 13th , 2007 - check the wiki for call in
information and times.
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