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Brian Kettler, Ph.D. |
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Horus Contractor Team Tech Lead |
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ISX Corporation, [email protected] |
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DAML PI Meeting, 12 February 2002 |
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Unclassified – For Official Use Only |
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Horus Project |
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Overview |
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Technical Update |
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Overview |
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Tools |
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What’s new/improved |
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Future R&D plans (including DAML insertion) |
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Applying DAML language, technologies, and tools
to build the Semantic Web for Intelink & the U.S. Intelligence
Community |
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Joint effort by DARPA/DAML & the Intelink
Mgmt. Office |
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Ongoing since FY00 |
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FY00 – SHOE-based proof-of-concept system |
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FY01 – DAML-based prototype |
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FY02 – Development and deployment of operational
prototype at user site(s) on Intelink |
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Contractors |
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BBN Technologies – PM/Integration |
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ISX Corporation – Toolkit Design, Knowledge Base
& Ontology Tools, Domain Ontologies |
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Northrop Grumman Information Technology (NGIT) –
Tools for Markup, Data Access, & Portals |
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Horus is a DAML application (“use case”) |
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support for Horus Knowledge Objects (HKO's) via
Knowledge Bases |
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supports access to Intelink-accessible web pages
& databases |
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Support multiple classes of users on Intelink |
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intelligence consumers and producers |
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human users (via browsers) and software agents |
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warfighters and analysts |
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ontology developers |
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portal developers and site administrators who
are Horus-enabling their sites on Intelink |
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Support for ontologies/markup in DAML+OIL
(3/2001) |
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not all DAML constructs currently supported
fully |
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Leverage emerging DAML technologies/tools |
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Distribute tools vs. monolithic system |
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Produce DAML markup from text documents using
ontologies and existing HKO's in the Knowledge Base |
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New & Improved |
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Automated Markup Tool |
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uses Lockheed’s AeroText (NLP) to extract
candidate HKO's from text using an extensible library of patterns (work
with Lockheed) |
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Manual Markup Tool |
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gets candidate HKO's from Auto Markup which
users can modify |
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generates DAML |
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Markup Center |
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web-based workflow management tool for document
markup |
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Future R&D Areas |
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Reference Resolution Tool |
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matches new HKO's to existing HKO's |
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Additional automated extraction capability |
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additional patterns |
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Interoperability with DAML Markup Tools |
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e.g., Teknowledge MS Office-based Tools |
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Create, store, and maintain ontologies in DAML
and in the Horus Knowledge Base (as Java objects/EJBs) |
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New & Improved |
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Ontology Versioning support |
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support for DAML class and property equivalence |
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ONTADEPT (Ontology Deployment and Maintenance
Tool) |
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tracks dependencies among ontologies and related
files |
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provides workflow mgmt. for ontology
updating/deployment |
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Using Sandpiper Software’s Visual Ontology
Manager |
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COTS add-on to Rational Rose that supports UML
modeling of ontologies and DAML generation |
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Future R&D Areas |
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ONTADEPT extensions (dependency reasoning, IDE
functions) |
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Possible Sandpiper VOM extensions (greater DAML
support, etc.) |
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Ontology “Views” (akin to database views) |
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Store and retrieve Horus Knowledge Objects.
HKO's populated from submitted DAML using ontologies. |
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using Parka KBMS (U.Maryland/LCAS) and Oracle
DBMS |
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New & Improved |
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Ontology Versioning support |
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support for DAML class and property equivalence |
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Performance enhancements (e.g., Parka/Oracle
store/retrieve) |
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HKO Administration Tools (delete, compare, merge
HKO's) |
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Future R&D Areas |
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Greater DAML support (e.g., subproperties,
inverse props, etc.) |
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Enhanced query API (support for disjunction,
negation?) |
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currently XML input, DAML output – check out
DAML Query work |
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Multiple, distributed KBs |
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KB validation (incorporate DAML validator?) |
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KB triggers (on changes to HKO's), KB export |
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Query, browse/navigate, and view HKO's |
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via web-based portal (JSPs, XSL, etc.) |
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New & Improved |
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Graphical Query Tool |
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enables user to issue highly structured queries
on HKO's in KB |
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Query Results/HKO View |
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GUI enhancements |
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Portal packaging |
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Performance enhancements (e.g., refactoring) |
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Future R&D Areas |
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Customizability of GUIs by COI/organization |
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which properties to display, what order, etc. |
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how to represent customization info in
KB/ontologies? |
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20+ Linked ontologies (extensible) in various
subject domains |
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Sources |
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Knowledge acquisition done with analysts |
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Intelligence Community Metadata initiatives
(e.g., ICML metadata, security tags for XML) |
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Existing ontologies from DARPA HPKB/RKF –
Teknowledge (Financial Transaction), Cycorp (Vehicles) |
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Encoding/validation in DAML done using COTS
(XML/RDF) and DAML tools |
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Sandpiper’s Visual Ontology Modeler |
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XML Spy |
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ConceptDraw/Visio |
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KSL’s Chimæra |
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Notes