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Auflistung nach Autor:in "van der Schaaf, Hylke"

1 - 4 von 4
  • Konferenzbeitrag
    A Quest for Affordable Personalized Atmospheric Exposure Estimates
    (EnviroInfo Dessau 2012, Part 1: Core Application Areas, 2012) Kobernus, Michael; Havlik, Denis; van der Schaaf, Hylke; Pielorz, Jasmin; Falgenhauer, Markus
    From the moment of our birth until our very last breath, we spend our lives immersed in a mixture of gases and aerosols known as "the air" or "atmosphere". Our largest organ, our skin, as well as our eyes are constantly exposed to the atmosphere, and an average adult inhales and exhales close to ten litres of air each minute while at rest, while during heavy exercise, this volume will rise steeply and could be as high as 150-250 litres per minute. Unsurprisingly, our well-being is closely connected to the characteristics of the air: some of the gases and chemicals suspended therein are toxic, others may cause allergic reactions, and our bodies are also sensitive to changes in e.g. humidity or oxygen levels as well as to changes in the air temperature and pressure. With the exception of the relatively rare cases of immediate lethal dangers (e.g. due to fires or chemical accidents), physical and chemical changes in atmospheric conditions can result in: (1) immediate or short term risks including skin and eye irritation, drying and watering of the eyes, respiratory difficulties, headaches and general feeling of malaise; and (2) medium to long term health damage to respiratory and immune systems. Moreover, sensitivity to these changes is both very different from one person to another and in many cases highly dependent on the individual’s patterns of behaviour. Yet, while each individual has a unique relationship to the environment, the information on the state of atmosphere and related hazards available today is entirely generic, and by no means personalised. We intend to address this lack of individualized information through the development of an affordable “Personal Environmental Information System” (PEIS). This system will allow users to estimate personalized exposure to various atmospheric stressors as well as to calculate the personalized risk index resulting from these hazards, individual sensitivities and individual behavioural patterns.
  • Konferenzbeitrag
    Future Internet enablers for VGI applications
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Havlik, Denis; Soriano, Javier; Granell, Carlos; Middleton, Stuart E.; van der Schaaf, Hylke; Berre, Arne J.; Pielorz, Jasmin
    This paper presents the authors experiences with the development of mobile Volunteered Geographic Information (VGI) applications in the context of the ENVIROFI project and Future Internet Public Private Partnership (FI-PPP) FP7 research programme. FI-PPP has an ambitious goal of developing a set of Generic FI Enablers (GEs) - software and hardware tools that will simplify development of thematic future internet applications. Our role in the programme was to provide requirements and assess the usability of the GEs from the point of view of the environmental usage area, In addition, we specified and developed three proof of concept implementations of environmental FI applications, and a set of specific environmental enablers (SEs) complementing the functionality offered by GEs. Rather than trying to rebuild the whole infrastructure of the Environmental Information Space (EIS), we concentrated on two aspects: (1) how to assure the existing and future EIS services and applications can be integrated and reused in FI context; and (2) how to profit from the GEs in future environmental applications. This paper concentrates on the GEs and SEs which were used in two of the ENVIROFI pilots which are representative for the emerging class of Volunteered Geographic Information (VGI) use-cases: one of them is pertinent to biodiversity and another to influence of weather and airborne pollution on users wellbeing. In VGI applications, the EIS and SensorWeb overlap with the Social web and potentially huge amounts of information from mobile citizens needs to be assessed and fused with the observations from official sources. On the whole, the authors are confident that the FI-PPP programme will greatly influence the EIS, but the paper also warns of the shortcomings in the current GE implementations and provides recommendations for further developments.
  • Textdokument
    Integration von KI-Algorithmen in Umweltinformationssysteme mittels SensorThings API
    (INFORMATIK 2021, 2021) Hertweck, Philipp; van der Schaaf, Hylke; Hilbring, Desiree; Weis, Jonas; Liesch, Tanja; Budde, Matthias
    Künstliche Intelligenz oder Maschinelles Lernen wird zunehmend in der Umweltdomäne eingesetzt. Eine offene Frage dabei ist, wie entwickelte Algorithmen flexibel in Umweltinformationsysteme integriert werden können. Dieser Artikel befasst sich mit dieser Frage und untersucht den Einsatz des offenen Standards SensorThings API des Open Geospatial Consortiums (OGC) für die Integration von KI-Algorithmen in eine Geodaten-Infrastruktur. Die entwickelte Methode trägt mittels Container-Technologie dem Einsatz unterschiedlicher Technologien und unabhängigen Entwicklergruppen in verteilten Systemen Rechnung. Entwickelt und erprobt wird diese Methode im Projekt NiMo 4.0. Hierfür dient als Beispiel ein Prognose-Algorithmus für die räumliche Vorhersage von Nitrat-Daten.
  • Konferenzbeitrag
    OData - Usage of a REST Based API Standard in Web based Environmental Information Systems
    (EnviroInfo 2022, 2022) Hilbring, Désirée; Becker, Kevin; Markus; Emde, Katharina; van der Schaaf, Hylke; Spandl, Horst; Tauber, Martina
    Environmental information in existing custom-build environmental information systems is manifold. Sharing this information via Web APIs for diverse client types to fulfil the needs of ongoing digitisation efforts is still a challenge. This paper analyses the open standard OData (Open Data Protocol) as a possible communication protocol between independent servers and clients. Of interest is also the question, if the protocol is not only capable of sharing environmental data between independent systems but also if the information provided via OData is sufficient for directly creating a web-based end user client. The developed prototypical implementation is tested in two environmental applications from different domains: a small data overview for decision makers and the integration of information in an environmental platform.