Friday,
November 8, 2002 - Issue = 9<=
/b>
<=
/b>
New
Stories:
DAML
PI Meeting held in Portland, OR
The
DAML Principal Investigators meeting was held October 16 - 18 in Portland,
OR. = Significant progress was reported in the areas of language, tools
and application development. Additionally, the DARPA DAML Program Manager,
Murray Burke, provided his vision for focusing the research efforts during
2003. The = PI meeting agenda and links to the presentations is at: http://www.daml.org/mee=
tings/2002/10/pi/
W3C
= releases Web Ontology Language (OWL) Guide Version = 1.0
Abstract:
=The
World Wide Web as it is = currently constituted resembles a poorly mapped
geography. Our insight into the = documents and capabilities available
are based on keyword searches, abetted by = clever use of document connectivity
and usage patterns. The sheer mass of this data = "" unmanageable without
powerful tool support. In order to map this terrain = more precisely, computational
agents require machine-readable descriptions of = the content and capabilities
of web accessible resources. These descriptions = must be in addition to
the human-readable versions of that information. =
The
Web Ontology Language (OWL) is intended to provide a = language that can
be used to describe the classes and relations between them that are inherent
in Web documents and applications. This document demonstrates = the use
of the OWL language to formalize a domain by defining classes and = properties
of those classes, define individuals and assert properties about them,
and = reason about these classes and individuals to the degree permitted
by the = formal semantics of the OWL language. The sections are organized
to present an incremental definition of a set of classes, properties and
individuals, beginning with the fundamentals and proceeding to more complex
language components. http://www.w3.o=
rg/TR/2002/WD-owl-guide-20021104/
W3C
= releases OWL test cases
The
W3C Web Ontolgoy Working Group = has published a set of test cases for
the Web Ontology Language (OWL). Many = of the test cases illustrate the
correct usage of the Web Ontology Language = (OWL), and the formal meaning
of its constructs. Other test cases illustrate the resolution of issues
considered by the working group. htt=
p://www.w3.org/TR/2002/WD-owl-test-20021024/#introduction
DAML
Query Language released
The
Joint US/EU ad hoc = Agent Markup Language Committee has announced the
initial release of the DAML = Query Language (DQL). DQL provides a language
and protocol for agent-to-agent query-answering dialogues using knowledge
represented in DAML+OIL, = potentially involving inference and remote knowledge
bases. The current release = consists of an abstract specification. Continuing
work is expected to result in a = normative external syntax and a fully
defined specification of answer = justifications. http://www.daml.org/2002/08/dql=
/
DAML
= Rules
An
increased emphasis = on rules emerged at the DAML PI Meeting and a decision
was made to more closely = align the DAML Rules effort with the Rule Markup
Language (RuleML) initiative. Information summarizing on
DAML Rules (DAML-R) is now available at http://www.daml.org/rules/.
DAML+OIL
Time Ontology released
A collaborative
project, led by Jerry Hobbs, aims to = develop a representative ontology
of time that expresses temporal concepts and properties common to any formalization
of time. For more information on = this project see: http://www.cs.roches=
ter.edu/~ferguson/daml/. As a part of this effort, the DAML+OIL
time ontology is now available = at: http://www.=
ai.sri.com/daml/ontologies/time/Time.daml
DAML
Article to appear in IEEE Distributed Systems = Online
An
article, = ?DAML+OIL, an Ontology Language for the Semantic Web?, by Jim
Hendler, Deborah = McGuinness, Richard Fikes and Lynn Stein, is scheduled
for publication on the IEEE Distributed Systems Online web site sometime
in November: http://dsonline.computer.org/
=
DAML-S
Version 0.7 released
Version
0.7 of DAML-S (DARPA Agent = Markup Language for Services) is available
at http://www.daml.org/services/.= DAML-S is a DAML+OIL-based Web service
ontology, which supplies Web = service providers with a core set of markup
language constructs for describing = the properties and capabilities of
their Web services in unambiguous, computer-intepretable form. DAML-S also
provides service requesters with = semantic constructs to describe the
functionality and constraints of services = desired by a requester. Version
0.7 introduces the Grounding ontology, and also = includes substantial
refinements to the Profile and Process Model ontologies. In addition, a
new example of a Profile-based (yellow-pages style) service taxonomy is
presented, and the existing service examples have been made = more complete.
The new Grounding ontology ties DAML-S in with the Web = Services Description
Language (WSDL), an emerging, collaborative industry effort = that is currently
the focus of a W3C working group. As noted on the release home = page,
feedback is welcome from all interested parties, through the = www-ws@xxxxxx
email list.
AFRL?s
Commander-To-Database Query Mediator using = DAML
The
Air Force Research Laboratory (AFRL) has developed a prototype application
to apply = military facility ontologies to answer high-level queries in
support of Effects = Based Operations. The ?DAML Commander-To-Database
Query Mediator? = prototype demonstrates how ontologies expressed in DAML
can be used to bridge an understanding gap between queries represented
in two different, but = related, domains and applications. The tool allows
non intelligence analysts to = access low-level military intelligence databases
without having to know the = low-level SQL search terminology. A web-based
user interface was developed to = allow users to formulate pseudo-natural
language queries concerning the status of = various military facility types
in foreign nations.The high-level
military facility classifications and ontology was developed based on a
standardized classification of = facilities enforced by the DIA (Defense
Intelligence Agency). Likewise, the = low-level intelligence data ontology
was derived from a subset of the modernized = integrated database (MIDB)
schema. The actual mediation between these two = ontologies was handled
by placing DAML restrictions on various properties and classes = from one
ontology to the other. Moreover, the application itself, which handled
= the query mediation, processing, and results delivery, was developed
with = Java servlet technology and made use of the Jena API for DAML. This
prototype development exercised the DAML lifecycle and demonstrates a potential
= military application of DAML. Several collaboration areas were identified
at the = recent DAML Principal Investigator meeting in Portland, OR, including
= integration with the SONAT experiment.?
DAML
at conferences
Planning
is underway = for the 2nd International Semantic Web Conference (ISWC2003)
to be held 20-23 = October 2003 in Sanibel Island, Florida, with a strong
representation from the = DAML program. Upcoming deadlines include Workshop
Proposals on December 16 = and Papers on April 15. See http://iswc2003.semanticweb.org=
for
more information.
Archive
of HotDAML = Newsletters
Subscription,
Questions, = Comments, Story Tips
<=
/p>