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Introduction to Agentcities

Introduction to Agentcities. & Related work in Aberdeen. Gunnar Aastrand Grimnes MTP Seminar, 7/11/2002. What is an Agent?. Useless definition: Autonomous Adaptive Mobile Software Entity. More definitions that there are researchers in the area. More about this CS5820.

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Introduction to Agentcities

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  1. Introduction to Agentcities & Related work in Aberdeen Gunnar Aastrand Grimnes MTP Seminar, 7/11/2002

  2. What is an Agent? • Useless definition: • Autonomous Adaptive Mobile Software Entity. • More definitions that there are researchers in the area. • More about this CS5820. • “Black Box” of the Semantic Web.

  3. My view of an Agent “Web-Service” Agents Bank Agent Other Personal Agents Personal Agent Personal Info Calendar Preferences

  4. What is Agentcities? • 2 projects, .RTD and .NET • EU Funded, 5th framework • Started 1. July and 1. November, 2001 • Both finish July 2003, but • Agentcities Taskforce • 6th Framework

  5. Agentcities.RTD • 14 Partners • Develop models, methodology and prototype solutions. • Reference benchmarks for .NET

  6. Agentcities.NET • Project open to anyone. • Aberdeen is member no. 20! • 67 Agent Platforms. • Provides services to support project members: • Information Days • Deployment Support • Working groups • Competition!

  7. What do people do in Agentcities? • Build Agents :) • Deploy services within the Agentcities network. • Services: Restaurant finder/review, theatre/cinema finder, hotel finder, GIS, transport service, auction service, banking, ontology service • Ping Agent on each node. http://www.agentcities.net/globalapd.jsp

  8. Technology support • FIPA Specifications • Jade, FIPA OS, April Agent Platform, Zeus, Java Agent Services, LEAP • Ontologies, DAML+OIL, RDF, KIF/SL

  9. Agent Platform • Provides base-services such as message passing, directory lookups, agent life-cycle support, debug facilities.

  10. Work within Agentcities • Agentcities is 1 year old. • Only lately has real services appeared. • .RTD partners HAD to deliver services by August ‘02. • Most services are at the demo stage.

  11. The Evening Scenario DEMO

  12. Agentcities in Aberdeen • We became a member in January 2002. • WeatherAgent deployed same time. • First real service on the network ! • We use: • JADE as our platform. • RDF as content language. • Jena as RDF toolkit. • RDF Query by example

  13. Step 1 : The Weather Agent • Interesting case-study: • Uses existing ontology based on METAR. • Wraps the MetOffice webpage for data. • Ontology mapping issues. • Content / Query language. • Active for 9 months now, 1 query :) MetOffice MetOffice 2 DAML mapping Example Forecast in DAML+OIL Example Query

  14. Eating our own dogfood: The IDAgent • Serves information about people in the department. • Static contact-details at the moment. • Future improvements: • Research interest • Research projects • Publications • Learned user preferences ??

  15. The AKT Bus @ Agentcities • AKT: • Huge EPSRC project. • Lots of activity in Aberdeen. • Develop “whole life-cycle knowledge management tools & techniques”. • Deployment support from .NET • AKT Bus is the service invocation layer. • AKT Bus  Agentcities.

  16. Conoise • Funded by BT Exact, follows from KRAFT. • Supporting Virtual Organisations. • Agentcities EO like scenario. • Agents and BDI used to solve constraint problems. • Agent interface to P/FDM and Prolog Agents.

  17. Agentcities competition • Single evening planner for Aberdeen: • Pubs, restaurants and cinemas. • Separate constraint solver and learner. • Deadline 15th November. Compo Demo Scoot

  18. Aberdeen vs. World • Content language: RDF vs. SL • FIPA compatibility requires SL, so most tools etc. are SL based. <ns3:FreeHouse rdf:ID="bobbin"> <ns3:pubName>The Bobbin</ns3:pubName> <ns3:pubWebSite> http://www.screampubs.com/ </ns3:pubWebSite> <ns3:servesBeer rdf:resource="beertypes#guinness"/> <ns3:servesBeer rdf:resource="beertypes#tennentslager"/> <ns3:servesFood>true</ns3:servesFood> <ns3:telNumber>01224 497867</ns3:telNumber> </ns3:FreeHouse> SL Example (vehicle :colour red :max-speed 100 :owner (Person :name Luis :nationality Portuguese))

  19. Aberdeen Query By Example • RDQL too complicated to write by hand. • Query by example is very intuitive. • Internal conversion to RDQL. • Could be “smarter” than RDQL. <q:Query> <q:template> <akt:Academic> <akt:family-name> Brown </akt:family-name> </akt:Academic> </q:template> </q:Query> SELECT ?x WHERE (?x, ?y, ?z), ( ?x, <rdf # type>, <akt # Academic> ), ( ?x, <akt # family-name>, "Brown" )

  20. QbEx with Constraints <q:Query> <q:template> <r:restaurant> <r:type rdf:resource=“r#Tandoori" /> <r:open-time> <cif:variable rdf:ID="x"><cif:varname>x</cif:varname></cif:variable> </r:open-time> </r:restaurant> </q:template> <q:constraints> <cif:comparison> <cif:comparison_operator>&gt;</cif:comparison_operator> <cif:comparison_op1> <cif:variable rdf:about="#x"/> </cif:comparison_op1> <cif:comparison_op2> <cif:integerconst> <cif:constant_value>1900</cif:constant_value> </cif:integerconst> …..

  21. Constrained QbEx to RDQL SELECT ?x WHERE (?x, ?y, ?z), ( ?x, <r # open-time>, ?v_x ), ( ?x, <rdf # type>, <r # restaurant> ), ( ?x, <r # type>, <r # Tandoori> ) AND ( ?v_x > 1900 )

  22. Aberdeen, Agentcities & The Future • Several Honours Projects running now: • Organising a Conference. • Semantic Web Calendar. • Delivering E-Science services. • Research work on: • Learning privacy rules. • Dealing with false service descriptors. • We shall not rest until the whole world uses RDF. • Better RDF support for Jade. • Improve QbEx

  23. Questions? • Slides and relevant links available from course webpage.

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