Auflistung nach Autor:in "Karatzas, Kostas D."
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- KonferenzbeitragICT Technologies and Somputational Intelligence Methods for the Creation of an Early Warning Air Pollution Information System(Environmental Informatics and Industrial Ecology, 2008) Karatzas, Kostas D.; Bassoukos, Anastasios; Voukantsis, Dimitris; Tzima, Fani; Nikolaou, Kostas; Karathanasis, StavrosContemporary air quality management calls for effective, and in advance, AQ information dissemination. Such dissemination requires for communication that should not be based solely on written or oral language forms, but should make use of graphical, symbolical and multimedia language communication schemes, via available communication channels. Previous experiences and published research results indicate that the content of environmental information systems should include both real time information and forecasting for key parameters of interest, like the maximum concentration values of air pollutants. The latter are difficult to achieve, as air quality forecasting requires both domain expertise and modelling skills for the complicated phenomenon of atmospheric pollution. One of the ways to address this need and to extract useful knowledge for better forecasting and understanding of air pollution problems, is the application of Computational Intelligence (CI) methods and tools. The present paper discusses the creation of an environmental information portal for the dissemination of air quality information and warnings, for the city of Thessaloniki, Greece. The system is developed with the aid of state-of-the art, web-based technologies, including modular, on the fly software integration to operating applications, and implements CI for the forecasting of parameters of interest. In addition, observation data are made accessible to the public via an internet-based, graphics environment that deploys open source geographic information services.
- KonferenzbeitragState-of-the-Art in the Dissemination of AQ Information to the General Public(Environmental Informatics and Systems Research, 2007) Karatzas, Kostas D.Air pollution is among the most significant and well studied concepts of environmental pressures. Basic aspects of air pollution and air pollutant identification were already discussed some centuries ago, while contemporary air pollution problems, effects and managing legal incentives have already been adopted by various societies long before contemporary life. Yet, the question of, perception , interpretation and communication of AQ information remains open, and needs to be addressed in an effective way, in order to design better pollution abatement strategies and AQ information services. Moreover, contemporary AQ information dissemination methods and tools can now make use of various telecommunication channels for pull and push service provision. These may include internet for e-mail notification, World Wide Web for detailed pollution related information, SMS for early warning services, WAP and J2ME applications in mobiles and PDAs for enhanced graphical and informative content on the move, street panels (VMS) for covering key parts of the urban web and voice services for personal communication support. In addition, location based services are also emerging in the field of personalised, quality of life services. Moreover, communication per se is not based solely on written or oral language forms, but makes use of graphical, symbolical and in more general terms multimedia language communication schemes, via properly designed multimedia environmental information content. The present paper provides information on the state-of-the art concerning people’s perception and awareness of air quality information, and on AQ (and environmental, in general) information dissemination. The paper also draws conclusions concerning the design and the functions of AQ information services, thus providing valuable information to research institutes, authorities and companies working in the area of environmental information dissemination.