From: John Flynn (jflynn@bbn.com)
Date: 09/05/01
HotDAML Newsletter Keeping you up to speed on happenings in the world of DAML http://www.daml.org <http://www.daml.org/> _____ Tuesday, September 4, 2001 - Issue 4 _____ New Stories: New DARPA DAML Program Manager As of 4 September, 2001 Murray Burke has taken over the reigns as the DARPA Program Manager for the DAML effort. The founder of the DAML program, <a href="http://www.cs.umd.edu/users/hendler"> Dr. James Hendler </a> is returning to the University of Maryland where he will be a full professor in the Computer Science department and Director of Semantic Web and Agent Technologies at the new Maryland Information and Network Dynamics Laboratory. Prof. James Hendler Head, Adv. Info. Technology Lab 301-405-2696 (phone) Dept of Computer Science 301-405-8488 (fax) University of Maryland http://www.cs.umd.edu/~hendler College Park, MD 20742 DAML.ORG Goes Over 1,000,000 Hits The official web site for the DARPA Agent Markup Language (DAML) is hosted at the DARPA Technology Integration Center in the DAML Laboratory. Most of the content on the site is in XML and/or DAML format and is rendered for viewing via XML Stylesheet Language Transformations (XSLT). The site has been active for approximately one year and during the week of 20 August the DAML web site received its one millionth hit. The site can be accessed via http://www.daml.org <http://www.daml.org/> or http://www.daml.net <http://www.daml.net/> Semantic Web for Military Users The second Semantic Web for Military Users conference is planned for 12 –13 September, 2001. Potential military users of DAML technology will meet to discuss how the use of DAML could enhance specific military projects. Conference attendance is by invitation only and will be hosted by Dr. David Aha at the Naval Research Laboratory. Information on the first Semantic Web for Military Users conference can be found at http://www.daml.org/meetings/2001/06/swmeeting.html Air Force Research Laboratory (AFRL) DAML Transition On 27-29 August, 2001, AFRL and several principal investigators from the DAML program (BBN, SRI, and DRC) attended a very productive knowledge acquisition session at the Air Mobility Command (AMC) Diplomatic Clearance Office, Scott Air Force Base, Ill. The "DIP" office is responsible for requesting diplomatic clearances for all AMC flights crossing foreign borders, using a complicated set of request constraints provided by the DoD Foreign Clearance Guide (FCG). The goals of the AFRL DAML transition project are: 1) to make the FCG machine-readable to ensure timely and accurate clearance requests, and thereby reduce diplomatic clearance "incidents" (flights being turned back at foreign borders due to improper clearances), and 2) To exercise the entire DAML lifecycle and associated tools for ontology development, source mark-up, and application development using a carefully scoped AMC application. For more information, please contact the AFRL Program Manager, Mark Gorniak <mailto:gorniakm@rl.af.mil> . OntoMat Beta Release Announced It is an initial beta release of OntoMat, an interative tool for generating DAML annotations for web pages. OntoMat is aimed at end-users who wish to enrich their pages with DAML metadata. The Java based tool includes both an ontology browser and a HTML browser that will display the annotated text. The user creates annotations using a drag-and-drop interface. The tool is extensible using a plugin architecture. http://ontobroker.semanticweb.org/annotation/ontomat/index.html Software Services Grid Workshop A summit meeting was held between OMG, W3C and the scientific computing Grid community to discuss the recent proliferation of modeling and metadata standards. Presentation topics include the OMG Model Driven Architecture, Common Warehouse Metamodel, Semantic Web and DAML-S. Proceedings are available at http://www.omg.org/news/meetings/tc/software_services_grid_workshop.htm AeroDAML is now available on the Web AeroDAML automatically generates some basic DAML annotation. When you enter a webpage URI, it extracts some common entities and relationships from text and links them to appropriate DAML classes and properties. A user could then manually refine the AeroDAML output by adding more semantic relationships. You can try AeroDAML at http://ubot.lockheedmartin.com/ubot/hotdaml/aerodaml.html Initial Version of an XML To DAML Translator Announced The XML To DAML Translator, developed by Booz Allen, allows users to convert XML schema into DAML. DTD and XML content translation are work in progress. All major XML schema components are supported including import. Other capabilities such as element substitution groups are not currently supported. This tool along with an accompanying ppt slide presentation is available at http://www.davincinetbook.com:8080/daml/xmltodaml/xmltodaml.html . The relationship between the XML to DAML translator and ontology translation/mapping tools is as follows: The intent is to decouple the process of XML to DAML translation from the process of DAML ontology translation/mapping. The two processes can be combined by piping the results of XML to DAML translation into DAML ontology translation/mapping. Each XML schema/DTD gets its own new DAML ontology that is then mapped to existing DAML ontologies. DReggie: Enabling Semantic Service Discovery using DAML The University of Maryland, Baltimore County has been developing a dynamic service discovery infrastructure using DAML. The main goal of the project is to enhance existing service discovery mechanisms. Current service discovery mechanisms use simple attribute or interface matching techniques at the syntactic level. DAML possesses the ability to express the essential functionality, input and output behavior, constraints and functional limitations of different web-services in a machine-understandable format. This allows service discovery to be performed at a semantic level. DAML is used to describe different web-services and enhancements over the Jini service discovery architecture have been implemented. Semantic service matching improves the probability of a "successful" match for service discovery requests. Semantic matching involves reasoning about services that may result in inexact or approximate service matches, which are also considered to be a success. Any service that registers with the enhanced Jini Lookup Service registers a DAML description entry for itself. A client using the enhanced lookup process submits a DAML description of its request. A simple Java matching module and a complex prolog-matching module are used for matching service discovery requests with service descriptions. A DAML ontology was created to describe services in terms of their functionality, capability, platform requirements and other attributes. The ontology is available online at http://www.daml.umbc.edu/ontologies/dreggie-ont.daml . More information about the project can be obtained from the paper "DReggie: Semantic Service Discovery for M-Commerce Applications" http://daml.umbc.edu/papers/dreggie.pdf DAML Query Relevance Assessor Booz Allen & Hamilton is developing a Query Relevance Assessor to exploit DAML semantics to greatly enhance the accuracy and precision of WWW information retrieval. It relevance ranks DAML mark-up with respect to query terms by exploiting the wealth of contextual knowledge contained within ontology classes, properties and their instances. It performs this task when only minimal query term context may be available and achieves a minimal loss of semantic information by exhaustively examining all DAML semantic information. The tool borrows term weighting techniques from the field of information retrieval by identifying the analogues of free text documents within the DAML context to be DAML objects including ontology classes, properties and instances. This gives rise to what one may call a DAML semantic feature space quantifying the semantic relationships between DAML objects and hence the possibility of applying machine learning methods to the Web in ways not possible before. Briefing and poster at: http://www.davincinetbook.com:8080/daml/servlets/frame.html DAML at Conferences Horus, which uses DAML technology, was successfully deployed and demonstrated at Intelink2001 in St. Louis, MO on August 27 - 29. The Horus capability was characterized as the first end-to-end version of a Semantic Web. Deborah McGuinness gave the keynote talk on the future of the web at the IEEE International Conference on Communications held in Helsinki, Finland on June 11 – 14, 2001. http://www.icc2001.com/main/index.html Semantic Web Working Symposium (SWWS) 2001 was held at Stanford University on July 30 – August 1, 2001. DAML+OIL was a key discussion topic at this symposium. http://www.semanticweb.org/SWWS/ The 2001 International Workshop on Description Logics (DL2001) was held at Stanford University on August 1 – August 3, 2001 and included talks on DAML+OIL. http://www.ksl.stanford.edu/dl2001/ Archive of <http://www.daml.org/newsletters/> HotDAML <http://www.daml.org/newsletters/> Newsletters <http://www.daml.org/newsletters/> Subscription, Questions, Comments, Story Tips <http://www.daml.org/newsletters/>
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