1 X X tal tal ks ks Tim Finin Tim Finin University of Maryland Baltimore County Joint work with JHU/APL and MIT/Sloan DAML PI Meeting July 18, 2001 ask-all advertise subscribe tell recommend register
Jan 01, 2016
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XXtalkstalksTim FininTim Finin
University of Maryland Baltimore County
Joint work with JHU/APL and MIT/Sloan
DAML PI Meeting
July 18, 2001
ask-all
advertisesubscribe
tellrecommend
register
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Overview
1. What’s been done
The ITTALKS DAML application
2. What we’re working on
Adding agent services and ontology mapping
for topics
3. What else we’d like to do…
Xtalks as a DAML-driven event publishing
and notification service
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ITTALKS• ITTALKS is a database driven web
site of IT related talks at UMBC andother institutions. The database contains information on– Seminar events– People (speakers, hosts, users,…)– Places (rooms, institutions,…)
• This database is used to dynamically generate web pages and DAML descriptionsfor the talks and related information.
• Notifications are sent to registered users and/or their agents via email, SMS, WAP, and/or KQML for talks matching their interests, location and schedule.
http://ittalks.org/
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Registered users create profiles (encoded in DAML) describing their preferences, attributes and interests.
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Talks are publishedin HTML
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… and inDAML
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ITTALKS Architecture
Web server + Java servlets
DAMLreasoning
engine
DAMLreasoning
engine
<daml></daml>
<daml></daml>
<daml></daml>
<daml></daml>
DAML files
Agents
Databases
People
RDBMSRDBMSDB
Email, HTML, SMS, WAP
FIPA ACL, KQML, DAML
SQLHTTP, KQML, DAML, Prolog
MapBlast, CiteSeer,Google, …HTTP
HTTP, WebScraping
Web Services
ApacheTomcat
People
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Advanced Capabilities and features• Topic ontologies
– Automatic classification of talks and users w.r.t. DAML topic ontologies.
– Support for multiple topic ontologies, with manual and automatic mapping between pairs of topic ontologies.
• Agents– Using DAML as a FIPA compliant ACL – DAML reasoning engine (XSB, YAJXB, RDF API) – Intelligent agents that accept DAML talk notifications and
make entries on a user’s calendar if it matches the user’s interests, location and schedule.
• Distributed trust– A DAML distributed trust model for ITTALKS security and
authorization.
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ITTALKSagent
Travelagent
Calendaragent
Useragent
DAMLreasoning engine
BrokerAgent
AgentNameServer
user’s daml profile
mapquest
user’s calendar appe.g. MS Outlook
ITTALKS app
DAML reasonerCommon agent infrastructure
KQML
API
Communicationprotocol
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ITAALKS and agentscurrent working prototype
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http://Xtalks.org/ITTALKS is already a useful DAML application with real users.
With additional funding we can
– Generalize to Xtalks, a domain independent version of ITTALKS, configured and customized by a set of DAML ontologies.
– Xtalks will be genuinely useful application capable of supporting 1000’s of real users.
– Include a generic personal agent that advanced users can adapt and experiment with.
– http://xtalks.org/ will be a site of meta-information on all
known Xtalk-based sites.
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Just add water…
(1) Unpack Xtalks and place in a medium sized Linux box
(2) Sift the DAML config file
(3) Stir in one DAML topic ontology
(4) Optionally mix in additional DAML event ontology subclasses to taste
(5) Optionally top with DAML distributed trust policy information
(6) Sprinkle with custom HTML templates, GIFs, and CSS files as desired
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And Xtalks becomes…
• bioTalks or
• lingTalks or
• historyTalks or
• yogaLectures or
• pentagonSeminars or
• bostonRaves or
• mitLcsEvents or
• …
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Benefits• Xtalks has the potential to be a widely used application,
helping to make DAML and the semantic web more visible, and demonstrating its utility as an ontology language, an intelligent config language, an ACL, …
• Widespread use of Xtalks will make lots of DAML available on the web.
• Xtalks will provide a good DAML application with which people can experiment and extend.
• Having a running collection of independent Xtalks sites will enable interesting research in distributed systems.
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What’s needed?
• Re-engineering of ITTALKS to be more DAML driven
• Tools to help configure Xtalks– Create/edit/extend topic ontologies– Create/edit the DAML config file– Select the appropriate event classes and/or
extend the event ontology– Define the roles and key individuals needed for
the distributed trust model• Polish code and documentation for open source
distribution at http://xtalks.sourceforge.net/
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• ITTALKS is a useful, fairly sophisticated web application that used DAML in an integral way
• We can generalize this to Xtalks, an application to manage announcements of talks and other, similar kinds of events in any subject area.
• This can be simplified and packaged to make it easy to install and maintain.
• A release, perhaps open source, could lead to wide spread use and subsequent use of and experimentation with DAML.
XXtalkstalks
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