L. DiPippo, V. Wolfe, Lekshmi Nair, Ethan Hodys, Oleg Uvarov
{"title":"A real-time multi-agent system architecture for e-commerce applications","authors":"L. DiPippo, V. Wolfe, Lekshmi Nair, Ethan Hodys, Oleg Uvarov","doi":"10.1109/ISADS.2001.917440","DOIUrl":"https://doi.org/10.1109/ISADS.2001.917440","url":null,"abstract":"This paper describes an architecture for real-time multi-agent systems (RTMAS) that builds upon an existing real-time CORBA architecture. The RTMAS architecture provides real-time agent services for real-time agent communication, real-time agent scheduling and real-time agent facilitation. These services work together to allow for the expression and enforcement of real-time agent interactions. The paper describes the design of these services, along with a prototype implementation of the RTMAS architecture that is based upon an existing agent communication implementation.","PeriodicalId":193918,"journal":{"name":"Proceedings 5th International Symposium on Autonomous Decentralized Systems","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126632224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GDEVS: a generalized discrete event specification for accurate modeling of dynamic systems","authors":"N. Giambiasi, Bruno Escude, Sumit Ghosh","doi":"10.1109/ISADS.2001.917452","DOIUrl":"https://doi.org/10.1109/ISADS.2001.917452","url":null,"abstract":"Given a process whose output is a dynamic function of time, the traditional discrete event specification (DEVS) approximates the input, output, and state trajectories through piecewise constant segments, where the segments correspond to discrete time intervals that are not necessarily equal in length. For processes that defy accurate modeling through piecewise constant segments, this paper presents GDEVS, a generalized discrete event specification, wherein the trajectories are organized through piecewise polynomial segments. The utilization of arbitrary polynomial functions for segments promises higher accuracies in modeling continuous processes as discrete event abstractions. In general, discrete event systems including DEVS and GDEVS execute faster on host computers because executions occur corresponding to significant changes in the system unlike in continuous simulations where execution is on a continuous basis. GDEVS' superiority over DEVS lies in its ability to discretize a system characteristic. A key contribution of GDEVS is that it permits the development of a uniform simulation environment for hybrid, i.e. both continuous and discrete, systems. GDEVS is illustrated for a first order system and a hybrid system, with piecewise linear segments. Two representative systems have been modeled under GDEVS and executed on a simulator developed for GDEVS.","PeriodicalId":193918,"journal":{"name":"Proceedings 5th International Symposium on Autonomous Decentralized Systems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130547388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}