By Elisabeth André, Thomas Rist (auth.), Matthias Klusch, Larry Kerschberg (eds.)
These arethe proceedingsof the Fourth InternationalWorkshopon Cooperative info brokers, held in Boston Massachusetts, united states, July 7-9, 2000. Cooperative info agent study and improvement concentrated initially onaccessingmultiple,heterogeneous,anddistributedinformationsources. Ga- ingaccesstothesesystems,throughInternetsearchengines,applicationprogram interfaces, wrappers, and web-based displays has been a big concentration of - operative clever brokers. learn has additionally keen on the combination of this knowledge right into a coherent version that mixed facts and data from the a number of resources. eventually, this data is disseminated to a large viewers, giving upward thrust to concerns similar to information caliber, details pedigree, resource reliability, info safeguard, own privateness, and data price. learn in - operative info brokers has accelerated to incorporate agent negotiation, agent groups, agent mobility, in addition to agent collaboration for info d- covery in limited environments. TheinterdisciplinaryCIAworkshopseriesencompassesa widevarietyoft- ics facing cooperative info brokers. All workshop court cases were released by means of Springer as Lecture Notes in Arti?cial Intelligence, Volumes 1202 (1997), 1435 (1998), and 1652 (1999), respectively. This yr, the subject matter of the CIA workshop used to be ”’The way forward for details brokers in Cyberspace”, a really ?tting subject because the use of brokers for info amassing, negotiation, correlation, fusion, and dissemination turns into ever extra generic. We famous a marked pattern in CIA 2000 in the direction of addressing concerns concerning groups of brokers that: (1) negotiate for info assets, (2) construct strong ontologies to reinforce seek features, (3) speak for making plans and challenge so- ing, (4) examine and evolve in response to their stories, and (5) suppose expanding levels of autonomy within the regulate of advanced systems.
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Extra info for Cooperative Information Agents IV - The Future of Information Agents in Cyberspace: 4th International Workshop, CIA 2000, Boston, MA, USA, July 7-9, 2000. Proceedings
Interaction with users is done using agents. The MeBroker (Doles, Dreger, Großjohann, Lohrum, and Menke, 1999) is an Information Broker project of the Freie Universität Berlin. The architecture of the system is resembles the one of ICEBERG. The difference is that the emphasis of MeBroker lies in the selection of the information provider. It uses meta-data on the information providers to make the best choice. The Search Broker (Manber, and Bigot, 1999) performs its search in two stages. First the request is analysed to extract the topic from the request.
The ICEBERG broker agent that plays the central role in the system has been designed by reusing the generic broker agent model as presented in (Jonker, and Treur, 1998). , 1998), the rules presented in the next sessions are part of the knowledge sources within the system, which executes them using chaining as the inference relation. The system has been tested with the software environment of DESIRE, which is based on Prolog. There are three major phases in dealing with a user request: query (re)formulation, information resource discovery, and response construction.
39-50, 2000. Springer-Verlag Berlin Heidelberg 2000 40 Yasuhiko Kitamura et al. obtain desired information. To reduce this bothering work, WWW information integration 7] aims at providing a way to collect, extract, and integrate information from various WWW sites exibly and automatically. A typical example of WWW information integration is ight information service. In Japan, each of major airline companies provides a ight information service which we can consult about ight schedule and availability through the WWW.
Cooperative Information Agents IV - The Future of Information Agents in Cyberspace: 4th International Workshop, CIA 2000, Boston, MA, USA, July 7-9, 2000. Proceedings by Elisabeth André, Thomas Rist (auth.), Matthias Klusch, Larry Kerschberg (eds.)