GeoWorld's integration of WebScripter: End-User Tools for Composing Ontology-Enabled Web Services

From: John J. Deneen (
Date: Mon Oct 16 2000 - 15:54:14 PDT

"The DARPA Agent Markup Language (DAML) program, in conjunction with
other international initiatives, is aggressively developing a language
for describing the meaning of Web content as well as developing
associated tools that take advantage of it.

WebScripter is a tool that enables ordinary users to easily and quickly
assemble reports extracting and fusing information from multiple,
heterogeneous DAMLized Web sources.

Users can then publish their reports on the Web and have them
automatically refresh to contain the most up-to-date information. The
published reports are DAMLized as well - thus WebScripter-produced data
can itself become the source of further reports.

This gives information consumers considerable added value. By leveraging
DAML, WebScripter enables users to quickly create reports that would be
beyond them using today's technology."

WebScripter solution
- Enables precise queries
- Enables data extraction independent of page format
- Enables publisher to update his/her information once and other pages
are updated automatically

Benefits for information consumers
- Makes it easy to collect and fuse data from many web sources
- Refreshes reports when source data changes

Benefits for information publishers
- Automatically updates all published pages when data changes
- (strong incentive for publishers to DAMLize pages)

Larger-scale military applications:
- integration with GeoWorlds
- Predictive logistics
- Intelligence reports

Crisis Operations Planning Team
- Terrorist bombing in Philippines
- Natural and technological disasters

Official DAML public home page, the European sister initiative to DAML -
Ontology Inference Layer (OIL), and the SemanticWeb.

Info about Total Information Awareness, etc. and other Information
Systems Office (ISO) solicitations

DARPA\ISO Workshop on Tools for Collective Action and High-Performance
Knowledge Bases (HPKB)

In conclusion, these areas illustrate applications for wideband mobile
communications systems (


..."UWB technology promises a host of fascinating applications that are
being pursued by a number of companies, many of which have ties to USC.
The technology also raises thorny regulatory issues.

The ability of radio to determine range is inversely proportional to its
bandwidth, said Scholtz, professor and chair of electrical
engineering/systems at the USC School of Engineering. Global positioning
satellites span 1 megahertz of bandwidth to determine
location quickly via satellite to an accuracy of roughly 10 meters. UWB
radios transmit over a gigahertz or more of bandwidth.

“That’s a factor of a thousand times more bandwidth, enabling
measurements that are a thousand times more accurate than GPS,” said
Scholtz. “Ranging down to a centimeter or less, perhaps through walls
and foliage, should be possible.”

UWB’S RADIO’S ability to propagate through many materials, along with
its precise ranging, points to interesting applications such as:

   * Ground-penetrating radar for land mine detection, including
     non-metallic mines, and underground imaging to rescue earthquake
     victims buried in rubble.
   * Through-the-wall radar, hand-held personal radar units, home
     security radar systems and devices for quickly mapping the interior
     of buildings.
   * 3D imaging systems for builders that can look into walls, floors
     and cement slabs to show embedded studs, wires, pipes (including
     plastic), rebar and other materials.
   * The Integrated Media Systems Center at USC’s School of Engineering
     is interested in using UWB positioning technology for “haptics,”
     the devices that impart artificial feeling and touch in virtual
     reality, and for in-building wireless computer networking systems."

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