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Auflistung nach Autor:in "Schade, Sven"

1 - 6 von 6
  • Konferenzbeitrag
    A Future Sensor Web for the Environment in Europe
    (Integration of Environmental Information in Europe, 2010) Schade, Sven; Craglia, Max
    We have to understand better the complex interactions between global environmental change and the impacts on and of humanity, and assess the risk we are facing, how to mitigate them, and how to adapt to the changes we cannot manage. The global scientific community faces the challenge of delivering the necessary information and knowledge to society and policy makers. Europe has an important role to play in this global effort, and many initiatives are under way to improve the retrieval, access and sharing of relevant data and information. Nevertheless, there is also an increasing awareness that some of the data currently collected about the environment and its social impacts fall short of the requirements. In this paper we advocate the sensor web as a core contributor to address this challenge and improve the quality and timeliness of data about our environment. Widening the notion of a sensor beyond physical devices to include environmental models and user contributed contend, we promote central sensor web concepts. We give an overview of recent research areas and the state of play, before detailing how sensor services can encapsulate physical, virtual, and citizen based senses about our environment. We outline how an overarching event based architecture may facilitate these senses for situation awareness. The paper concludes with a discussion of recent and future developments that are required to establish a Future Sensor Web for the environment in Europe.
  • Konferenzbeitrag
    Environmental Services Infrastructure with Ontologies – A Decision Support Framework
    (Environmental Informatics and Industrial Environmental Protection: Concepts, Methods and Tools, 2009) Roman, Dumitru; Schade, Sven; Berre, Arne J.; Bodsberg, Nils Rune; Langlois, Joël
    An important challenge for today’s environmental applications is to support the migration of environmental models to be provided as a service on the Web, and to be able to use other services, in the context of a potential wider environmental user community of service providers and service consumers. We refer to this shift in the way environmental modes are provided as Model-as-a-Service (MaaS). This paper briefly presents MaaS and introduces ENVISION – an easy-to-use framework to support the emerging MaaS paradigm. We propose a general architecture (comprising components ranging from environmental Web portals to semantic service annotations to adaptive service chains execution) for ENVISION. Our architectural choices are motivated and validated by two scenarios (one from oils spill and the other from landslide monitoring and analysis), which we present in this paper. Finally, we identify a set of general scenarios supported by the ENVISION framework.
  • Konferenzbeitrag
    Infrastructures and Platforms for Environmental Crowd Sensing and Big Data
    (EnviroInfo & ICT4S, Adjunct Proceedings, 2015) Berre , Arne J.; Schade, Sven
  • Konferenzbeitrag
    Leveraging the Future Internet - Public Private Partnership for the Environmental Usage Area
    (Innovations in Sharing Environmental Observations and Information, 2011) Havlik, Denis; Schade, Sven; van Wijk, Wout; Usländer, Thomas; Hierro, Juanjo
    In order to address part of today’s grand scientific challenges and political agendas related to future Information and Communication Technology (ICT), the Information Society and Media Directorate General of the European Commission provided a novel scheme for innovation projects funded by the European Commission: the Future Internet Public-Private-Partnership (FI-PPP) as part of the Seventh Framework Programme for research and technological development. Eleven projects addressing the first of three intended program phases have been launched in Spring 2011. They comprise a large project dedicated to core Future Internet (FI) technology that is called FI-WARE; eight Usage Area projects, which deal with the requirement capture and functional component specifications of diverse application domains of the FI; and two support actions, one for capacity building, the other for collaboration support within and beyond the FI-PPP Programme. This paper explains the inner workings of the FI-PPP Programme, especially in relation to the Environmental Usage Area project, called ENVIROFI. This paper explains the overall relevance of the FI-PPP in terms of future eEnvironment services and Public Sector Information in Europe. It also outlines how the required contributions to the FI will be implemented, especially by detailing the interaction between ENVIROFI and FI-WARE. An outlook to a possible future of environmental ICT in Europe is included.
  • Konferenzbeitrag
    Potentials and Limits of Citizen Science to complete the Environmental Knowledge Base
    (EnviroInfo & ICT4S, Adjunct Proceedings, 2015) Schade, Sven
  • Zeitschriftenartikel
    Simulation von Diskontpreis-Strategien im GSM-Mobilfunkmarkt
    (Wirtschaftsinformatik: Vol. 51, No. 4, 2009) Schade, Sven; Frey, Thorsten; Mahmoud, Nezar
    Der Beitrag simuliert Netzeffekte im GSM-Mobilfunkmarkt mittels eines ACE-Modells unter Einbeziehung realer Vertragsdaten von Anfang 2007. Am Beispiel eines Prepaid-Vertrags wird der Markteintritt eines neuen Mobilfunkanbieters mit einer Diskontpreis-Strategie untersucht. Konkret wird dabei der Einfluss der einzelnen Vertragsbestandteile eines Prepaid-Vertrags (wie beispielsweise On-Net-, Off-Net- oder Festnetzgebühren) auf den zukünftigen Marktanteil des Neuanbieters analysiert. Die Analyse zeigt, dass ein erfolgreicher Markteintritt mit einem Prepaid-Vertrag und einer Diskontpreis-Strategie für Off-Net-Gebühren gelingen kann, allerdings mit Gebühren, die nur knapp über den Terminierungsentgelten liegen, die an die Fremdnetzanbieter abzuführen sind.AbstractThe article analyzes network effects on the German GSM mobile telephony market. The authors use an ACE-approach to examine how a new competitor can successfully gain ground in the market with a discount-pricing strategy. In particular they study the impact of several elements of a mobile phone contract like on-net-, landline- or off-net-fees on the market share of the competitor. It turns out that it is possible to successfully enter the market with a prepaid contract using a discount-pricing strategy where the single fees only marginally exceed the termination rates, which have to be transferred to foreign network operators.