1. ITWS Capstone Lecture:
The Semantic Web
John S. Erickson, Ph.D.
Director, Web Science Operations
Tetherless World Constellation
RPI
2. ...the purpose of the lecture is
to summarize the Semantic Web
with key concepts and
the introduction of a few advanced ideas
that will be useful to these graduating seniors
in grad school
or their careers...
3. ...the purpose of the lecture is
to summarize the Semantic Web
with key concepts and
the introduction of a few advanced ideas
that will be useful to these graduating seniors
in grad school
or their careers...
21. Int'l Open Gov't Dataset Search:
Percent of total catalogs searching 1,022,787 datasets
(from 192 catalogs)
from 192 catalogs
in 24 languages
representing 43 countries
and international organizations
(Summer 2012)
21
21
26. Semantic Web?
“Web of meaning” Make meaningful
Make meaningful
assertions
assertions
about things
about things
on the Web...
on the Web...
Web of Data
27. Semantic Web?
“Web of meaning”
Web of Data
Link ideas...
Link ideas...
Linked Data
47. Use URIs as names for things
Use URIs as names for things
Use HTTP URIs so that people can look up
Use HTTP URIs so that people can look up
those names (on the Web)
those names (on the Web)
When someone looks up a URI, return
When someone looks up a URI, return
useful information, using the standards
useful information, using the standards
((RDF*,SPARQL))
RDF*, SPARQL
Include links to other URIs, so that they can
Include links to other URIs, so that they can
discover more things
discover more things
48. Use URIs as names for things
Use URIs as names for things
Use HTTP URIs so that people can look up
Use HTTP URIs so that people can look up
those names (on the Web)
those names (on the Web)
When someone looks up a URI, return
When someone looks up a URI, return
useful information, using the standards
useful information, using the standards
((RDF*,SPARQL))
RDF*, SPARQL
Include links to other URIs, so that they can
Include links to other URIs, so that they can
discover more things
discover more things
70. Schematic for Deep Carbon Virtual Observatory and Interoperability
Semantic
Integrated Discovery interoperability Analytics Global Census, Virtual
visualizations and mining Mineral Laboratory, ...
Applications
Application-level mediation: vocabulary,
mapping to science and data terms
Semantic
Software, Deep Energy/
interoperability
Physics/ …. Res/Flux
Life Chemistry
Applications
Tools & Apps Applications Models
Semantic query, Query,
hypothsis and access and
inference use of data
Semantic mediation: physics, chemistry, mineral, emission data - ChemML,
Metadata,
Data schema,
Emission/
data
GVP MINDAT EOS EarthChem Compositions
Repositories ... ... ...
72. ...the purpose of the lecture is
to summarize the Semantic Web
with key concepts and
the introduction of a few advanced ideas
that will be useful to these graduating seniors
in grad school
or their careers...
