MULTI-AGENT LEARNING FRAMEWORK FOR ENVIRONMENT REDUNDANCY IDENTIFICATION FOR MOBILE SENSORS IN AN IOT CONTEXT

From an IoT point of view, the continuous growth of cheap and versatile sensor technologies has generated a massive data flow in communication networks, which most of the time carries unnecessary or redundant information that requires larger storage centers and more time to process and analyze data. Most of this redundancy is due to fact that network nodes are unable to identify environmental cues showing measurement changes to be considered and instead remain at a static location getting the same data. In this work we propose a multi-agent learning framework based on two theoretical tools. Firstly, we use Gaussian Process Regression (GPR) to make each node capable of getting information from the environment based on its current measurement and the measurements taken by its neighbors. Secondly, we use the rate distortion function to define a boundary where the information coming from the environment is neither redundant nor misunderstood. Finally, we show how the framework is applied in a mobile sensor network in which sensors decide to be more or less exploratory by means of the parameter s of the Blahut-Arimoto algorithm, and how it affects the measurement coverage in a spatial area being sensed

Motivation for an IT framework architecture for the implementation of the european water framework directive

The implementation of the European Water Framework Directive (WFD) is not only an ambitious task from the thematic point of view, but also from the perspective of the required support by information technology (IT). While the WFD itself does not include concrete IT recommendations, e.g., for data storage, exchange, map or report formats, regional and/or national environmental agencies have to build or adapt their information systems now in order to deliver the results for the first WFD reporting phase in time. Moreover, as the WFD requires a water management policy based around natural river basin districts instead of administrative and political borders and demands co-ordinated "programmes of measures", the agencies have to coordinate their work and combine their results with other agencies, possibly across national borders. On this background, the present article motivates the need to develop an IT Framework Architecture for the WFD implementation

How to analyse user requirements for service-oriented environmental information systems

Environmental Information Systems (EIS) allow the user to store, query and process environmental information and visualize it in thematic maps, diagrams and reports. Although service-orientation is the predominant architectural style of EIS there is no design methodology that brings together the requirements and the expert knowledge of EIS users with the services and information offerings of existing EIS, and, in addition, explicitly obeys the guidelines and constraints of geospatial standards of the Open Geospatial Consortium (OGC) as side-conditions. This paper focuses on the analysis phase as a prelude to service-oriented design. It proposes a way of gathering, describing and documenting user requirements in terms of extended use cases which may then be used to perform the abstract design step following SERVUS which denotes a Design Methodology for Information Systems based upon Geospatial Service-oriented Architectures and the Modelling of Use Cases and Capabilities as Resources

The Fraunhofer IDSM pilot network

This presentation on the occasion of the SMDS '95 workshop gives an overview about the structure of the Fraunhofer-Network and the subset that has been chosen as the pilot network for the ESPRIT IDSM project. In addition, it provides supporting evidence of its needs and suitability for the installation of domains and policy-based management tools and services

Die Fachanwendung Grundwasser des UIS Baden-Württemberg auf der Grundlage des WAABIS-Dienstekonzeptes

Der Beitrag erläutert die Hauptfunktionen und die Grundarchitektur der UIS-Fachanwendung "Grundwasser" als Teil des UIS Baden-Württemberg und insbesondere des Informationssystems Wasser, Abfall, Altlasten, Boden (WAABIS). Es wird beschrieben, wie durch Einsatz eines UIS Java-Frameworks und Integration von generischen Software-Komponenten (sogenannten WAABIS-Diensten) eine Software-Architektur geschaffen wurde, die grundsätzlich auch für andere UIS-Fachanwendungen einsetzbar ist. Als Beispiele für integrierte WAABIS-Dienste seien hier die Komponenten GISterm, Sachdatensystem, Adressbuch und die fachübergreifende Zuordnung von UIS-Objekten genannt