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Creating the next revolution in Internet
technology... |
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…by enabling “agent” communication at a Web-wide
scale. |
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The key enabler of current interoperability in
both military and commercial systems is the “HyperText Mark-up Language”
(HTML) |
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Allows a machine readable, formal language, to
be expressed on web pages for the presentation of data |
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limited set of tags |
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not useful for machine search |
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Current languages attack this by adding
syntactic data handling abilities |
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XML (eXtensible Markup Language) |
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Extensible keyword set |
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Solves syntactic inequalities between data
formats |
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DB 1 ->
ADDRESS <- DB 2 |
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Useful for Data Sharing |
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Not search |
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Synonymy
and polysemy |
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<PERSON> vs. <INDIVIDUAL> |
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is <SPIDER> an arachnid or software? |
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Structural differences |
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DARPA will lead the way with the development of
Agent markup Language (DAML) |
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A “semantic” language that ties the information
on a page to machine readable semantics (ontology) |
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Currently being fielded at University level |
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SHOE (Maryland),
Ontobroker(Karlsruhe),OWL(Washington Univ) |
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Largely grows from past DARPA programs (I3,
ARPI) |
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But not transitioning |
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Even with SW activity, W3C membership focused on
short-term gain:HTML/XML |
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Small communities define common semantics |
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Technical Vocabularies abound |
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Mission specific |
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Technical jargons |
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Shared values |
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Larger communities form around shared terms |
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Mapping and “articulation” become crucial |
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Interoperability at web languages level |
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Top-Down (AIA defines critical aircraft
properties) |
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or bottom up (Oh, a “foxbat” is a Mig29) |
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Business case for improving communication! |
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Simpler, More Accurate and Focused Searches |
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Search on Information Organized by Content |
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Capability to Follow Threads of Logic |
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Help Independent Developers Tie Into Common
Framework |
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DAML+OIL ontology language released on World
Wide Web |
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Annotated “walkthrough” |
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Examples |
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Full definition |
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RDFS = Resource Description Framework Schema |
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Provides 100% mapping to XML |
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Open discussion group run by W3C:
[email protected] |
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Denotational (and axiomatic) Semantics published |
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First formal semantics for a web language |
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Proposal to W3C for standardization ongoing |
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“Transparent” Markup |
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Content-Based Search |
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Service advertising |
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Language Specifications |
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DAML Newsletter (you can subscribe) |
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Collection of web tools |
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Ontology library |
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134 ontologies as of May 15, 01 |
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DAML crawler |
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over 14,000 pages w/2,000,000+ DAML statements,
5/15/01 |
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Web tracking software used for baselining DAML
use |
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Over 500,000 hits in first 6 months |
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Query processed: |
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A satellite image taken yesterday at 10 AM is
available on the web at http://… |
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A new satellite image, to be taken today at
10AM, will be available for $100 — click here to authorize transfer of
funds and obtain image (you will need a valid credit card number from one
of the following providers: …) |
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In an emergency situation, a Coast Guard
observer plane can be sent to any location within the area you indicate.
Service Note: You will be responsible for cost of flight if the situation
does not result in emergency pickup. Click Here for more information. |
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A high altitude observer can be sent to your
location in 13 hours. Click here to initiate procedure. (You will need to
provide US military authorization,
A valid military unit code, and the name of commanding officer) |
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A service entitled “commercial service for
providing satelite images” is advertised as becoming available in 2004. See
http://… for more information |
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The Semantic Web is coming! |
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Joint development between DARPA/EU/and W3C
communities |
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Languages and tools are available to play with |
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Http://www.daml.org/ |
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W3C interest group available for those wishing
to join the discussion |
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[email protected] (live or archived) |
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Ongoing DoD and commercial projects |
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Come join us |
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Submit ontologies/marked up pages |
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Develop tools or help test ours |
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Get in on the next big thing early! |
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Notes