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DAML Services |
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Participated in the definition of DAML-S Version
0.6 Ontology for Web Services |
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Developed Use Cases for DAML-S Profiles |
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Defined a concurrent execution semantics for
DAML-S |
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DAML Service Discovery |
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Developed a DAML-S matchmaker |
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Developed method for the DAML-S matchmaker to
interoperate with UDDI |
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Semantic Web Calendar Agent |
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Developed a scheme for annotating schedules in
different ontologies |
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Developed translation services between schedule
ontologies and provided web & agent based interface |
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Developed browsing and update functionality of
the schedules into an Outlook calendar agent |
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Ontology Linking |
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Developed a simple tool to assist ontology
linking |
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Papers published: |
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DAML-S: A Semantic Markup Language For Web
Services, Semantic Web Working Symposium (SWWS), 2001, The DAML-S Coalition |
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RCal: A Case Study on Semantic Web Agents, The
First International Conference on Autonomous Agents and Multi-Agent Systems
(AAMAS) 2002. Terry R. Payne,
Rahul Singh & Katia Sycara |
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Communicating Agents in Open Multi Agent
Systems. First GSFC/JPL Workshop on Radical Agent Concepts (WRAC), 2002, Terry
R. Payne, Massimo Paolucci, Rahul Singh, and Katia Sycara. |
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Concurrent Semantics for the Web Services
Specification Language DAML-S. Proceedings of the Coordination 2002
conference, (The Fifth International conference on Coordination Models and
Languages), Ankolekar, A.,
Huch, F. and Sycara,
K., York, UK, April 8-11, 2002. |
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Filter-Based Semantic Matching Engine for DAML-S
profiles based on heuristic filters |
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Logical inference on the DAML Ontologies
guarantee correctness of matching |
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Information Retrieval techniques that help to
speed up the matching |
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Developed method for the DAML-S matchmaker to
interoperate with UDDI |
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Automatically register DAML enabled services
with UDDI |
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Automatic retrieval of UDDI entries upon
matching |
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Enable capability descriptions and matching of
DAML enabled services registered with UDDI |
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Retsina Semantic Web Calendar Agent supports: |
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Browsing of agendas and schedules marked up in
DAML & RDF |
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Invocation of related tasks, such as scheduling
meetings and email |
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Integration of selected meetings and events into
MS Outlook |
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Can parse markup using several ontologies,
including |
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Hybrid ICal Calendar Ontology |
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Dublin Core Ontology |
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Friend-of-a-Friend Ontology |
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Schedule markup using other ontologies can be
accessed via translation agents |
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DMA2ICal Agent converts DAML Meeting Agenda
markup into ICal Markup. |
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DMA2ICal Translation Service converts DAML
Meeting Agenda Markup into ICal Markup |
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Allows DAML meeting agendas to be understood by
RCal Agent |
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Based on Mike Dean’s genhtml client for
generating html |
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Service can be accessed via the web |
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Form based interface for retrieving markup |
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CGI interface for dynamic |
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generation of markup via a URI |
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Service can be accessed as an agent registered
with a lookup service (e.g. DAML-S) |
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RCal agent translates unknown marking into ICal
by requesting Translation Services |
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The Retsina DAML Linker replaces literals with
links to resources |
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Uses a rule based graphical interface to: |
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Identify properties to be replaced. |
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Select existing DAML knowledge base containing
related concepts. |
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Define replacement rules based on matching
datatype contents |
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Output knowledge base includes linking
statistics: |
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For example, how many of the literals are
replaced |
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Supports iterative refinement of linking rules |
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DAML-S Coalition |
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Continue participate in the definition of DAML-S |
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Participate in the definition of ontologies for
security of DAML based services and Access Policies |
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Develop ontologies for Profile Functional
Attributes |
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Service Matching and Composition |
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Incorporate the DAML-S changes into the
Matchmaker |
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Develop and implement DAML-S based service
composition algorithms |
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Participate in the DAML Experiments |
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Evaluate and Extend the Ontology Linker |
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Use and evaluate tools such as AeroDAML in
agent-based scenarios |
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Extend and evaluate the Calendar Agent and
Translation Agents utilize DAML-S for discovery and transactions between
services |
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Matching Agents for Services |
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The DAML-S matchmaker and its integration code
with UDDI |
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Use-cases that demonstrate DAML-S within a live
agent system |
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Rcal – Retsina Calendar Agent |
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Automatic generation of DAML-S requests for
translation services |
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Translation Services for other ontologies (e.g
ITTalks, VCard) |
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Retsina Linker |
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The resulting software, ontologies and
algorithms that will result from the DAML experiments |
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The security ontology & access policies for
DAML-S |
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Using the UDDI advertisement and matching scheme
as baseline, we compare the value-added by the DAML-S semantic matching
layer |
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Compare the functionality of information
returned in the two cases |
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Compare computational performance (response
time, number of matched ads) |
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Use precision and recall |
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Evaluation of the Calendar Agent within
organizations or at large meetings (e.g. conferences etc) |
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DMA2ICal transactions are currently being logged
to evaluate performance and translation demand during current PI Meeting. |
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Use the metrics that will be defined in the
context of the DAML Experiments to evaluate our work in those Experiments |
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Notes