Microsoft Word - pubs-2004-07-anticip.doc

2012

COTS simulation packages (CSPs) have proved popular in a wider industrial setting. Reuse of simulation component models by collaborating organisations or divisions is restricted however by the same semantic issues that restrict the inter-organisation use of other software services. Semantic models, in the form of ontology, utilized by a web service based discovery and deployment architecture provides one approach to support simulation model reuse. Semantic interoperation is achieved using domain grounded simulation component ontology to identify reusable components and subsequently loaded into a CSP, modified according to the requirements of the new model, and locally or remotely executed. The work is based on a health service simulation that addresses the transportation of blood. The ontology engineering framework and discovery architecture provide a novel approach to inter-organisation simulation, uncovering domain semantics and providing a less intrusive mechanism for component reuse. The resulting web of component models and simulation execution environments present a nascent approach to simulation grids.

Distributed simulations are widely used for training, concept evaluation, and increasingly for operational uses such as embedded training, course-of-action analysis, mission planning/rehearsal, and predictive situational awareness. The Distributed Interactive Simulation (DIS), High Level Architecture (HLA), and Test and Training Enabling Architecture (TENA) are the DoD standard protocols used to link together distributed simulations. These simulations typically have requirements to visualize rapidlyupdating, geographically-referenced data that is shared via DIS, HLA or TENA. This means that we need to provide seamless mechanisms to display 2D symbology in ArcMap or 3D models in ArcGlobe that correspond to simulated objects. In this paper, we discuss requirements and approaches for integrating DIS, HLA, and TENA into ArcGISbased systems, to allow simulated entities to be rapidly displayed and manipulated. This will include a description of the approach used and the lessons learned while incorporating real-time updates into the ArcGIS product framework.

Computer, 2006

Proceedings of the 4th International ICST Conference on Simulation Tools and Techniques, 2011

As multi-agent systems (MAS) are used increasingly often to solve larger and more complex problems, distributed simulation is emerging as the only viable approach to cope with the resultant increased scale and complexity of MAS. While different methods have been proposed for distributing these simulations, the problem of interfacing a MAS with these distributed methods remains just as important. In this paper we use the PDES-MAS framework as a solution for distributing the MAS and propose a Middleware as an interface between MAS and the PDES-MAS framework. The Middleware supports designing and writing a MAS, translates interactions between the shared state of agents to events that the PDES-MAS framework can handle, and offers a number of commonly used services in a MAS. Practical experience with the Middleware thusfar has shown it to be an adaptable and efficient solution for designing and implementing different MAS.

2007

Laboratory for Industrial Energy Systems, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland francois. marechal@ epfl. ch Keywords: Simulation interoperability, semantic, ontology, integrated modelling and assessment, agriculture, energy system.

2002

The World Wide Web has had an huge influence on the computing field in general as well as simulation in particular (e.g., Web-Based Simulation). A new wave of development based upon XML has started. Two of the most interesting aspects of this development are the Semantic Web and Web Services. This paper examines the synergy between Web service technology and simulation. In one direction, Web service processes can be simulated for the purpose of correcting/improving the design. In the other direction, simulation models/components can be built out of Web services. Work on seamlessly using simulation as a part of Web service composition and process design, as well as on using Web services to re-build the JSIM Web-based simulation environment is highlighted.

2010 Second International Conference on Advances in System Simulation, 2010

Critical infrastructures (CI) such as telecommunication or the power grids and their dependencies are getting increasingly complex. Understanding these -often indirectdependencies is a vital precondition for the prevention of crosssector cascading failures of CI. Simulation is an important tool for CI dependency analysis, the test of methods for risk reduction, and as well for the evaluation of past failures. Moreover, interaction of such simulations with external threat models, e.g., a river flood model and economic models, may assist in what-if decision-making processes. The simulation of complex scenarios involving several different CI sectors requires the usage of heterogeneous federated simulations of CI. However, common standards for modelling and interoperability of such federated CI simulations are missing. In this paper, we present a novel approach for coupling CI simulations, developed and realised in the EU project DIESIS. The DIESIS core technologies for coupling CI simulations include a middleware that enables semantic interoperability of the federate simulators, a systematic, service-oriented approach to set up and run such federations, and, most importantly, a scenario-based architecture concept for modelling and federated simulation of CI. The architecture foresees a flexible pair-wise (lateral) coupling of simulators. DIESIS has implemented a demonstrator as a proof of concept for its approach and technologies, by coupling four different simulation systems (three interacting CIs and an external, common threat). In this paper, we focus on the architectural concept and the interoperability middleware that realises this concept and allows the coupling of heterogeneous simulation systems using various time and data models. We show how the ontology-based Knowledge Based System (KBS) is integrated and used in the overall system. Then, we discuss the basic technical concepts as well as the results obtained with the demonstrator. The proposed architecture is open for further extensions. Ultimately, the proposed approach shall form the basis of a future standard coupling middleware for federated CI simulations.

2007 Winter Simulation Conference, 2007

This paper describes the motivations, methods, and solution concepts for the use of ontologies for simulation model integration. Ontological analysis has been shown to be an effective initial step in the construction of intelligent systems. However, the modeling and simulation community has not taken advantage of the benefits of ontology management technology. Moreover, the popularity of semantic technologies and the semantic web has provided several beneficial opportunities for the modeling and simulation communities of interest. The paper outlines the technical challenges in simulation integration and describes an ontology-based method that addresses these challenges. An example military combat simulation application scenario is used to illustrate the practical benefits of the simulation model integration approach.

2015

Today XML is a common format supporting interoperability and information exchange between systems in the modeling and simulation field. Although XML enables systems to agree on a common syntax and understand the exchanged information, systems can misinterpret them due to their di↵erent conceptualizations of the domain of interest. In this paper, we present a framework for automatic translation of XML simulation models which follow the High Level Architecture (HLA) object model template specification, into OWL ontologies. In OWL ontologies the semantics of information is formally defined. It provides the basis for interoperability and information exchange between simulation systems on semantic level.