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    A precision estimation method for volumetric changes
    (IEEE, 2019-06) Akça, Mehmet Devrim; Stylianidis, Efstratios; Gruen, Armin W.; Altan, Mehmet Orhan; Hofer, Martin; Smagas, Konstantinos; Sanchez Martin, Victor; Walli, Andreas; Jimeno, Elisa; Garcia, Alejandro
    Earth surface changes are often computed by comparing the sequences of digital elevation models (DEMs) so called the DEM of difference (DoD) method. We present an operational DEM generation, co-registration and DoD comparison software in which the surface changes are quantified in metric units of volume. A practical method, which is based on the law of error propagation, is developed to estimate the theoretical precisions of volumetric changes. The proposed pipeline can estimate the change of object volumes (in terms of loss and gain) together with their precision numbers. Change of the forest volume in a fire effected region in a test site is analyzed for the validation. The method can be used for various change detection applications related to forestry as well as other topics such as earthworks, geomorphology, mining, and urbanization.
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    Team composition and team performance: Achieving better results in an international higher education environment
    (Editura Niculescu, 2013-10-31) Scarlat, Cezar; Falcıoğlu, Pınar
    In line with former experiments, this stud), covers a period of four years (2008-2012) while teaching Project Management courses to international students at Mikkeli University of Applied Sciences, Finland - aiming to explore the possibility to apply the Belbin's theory on building successful small project teams in a multicultural higher education environment - in order to achieve better results - in terms of both satisfaction and performance. Besides exploring this possibility, the study has as objectives: (i) to assess the students' performance while working in teams; (ii) to assess the students' satisfaction of working in teams built according to different criteria; (iii) to check if there is any relationship between team members' performance and the way team is built. The influence of the cultural background was behind the scope of this work. The results are positive: the theory is applicable in the above conditions,. students' satisfaction depends on the way the team is built; building the teams according to the theory of team members' roles leads to better performance. The results of the study are important jar academic researchers as well as practitioners - higher education professors and decision makers, aiming at improving the quality of the higher education processes.