@inproceedings{RojahnGronau2024, author = {Rojahn, Marcel and Gronau, Norbert}, title = {Openness indicators for the evaluation of digital platforms between the launch and maturity phase}, series = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, booktitle = {Proceedings of the 57th Annual Hawaii International Conference on System Sciences}, editor = {Bui, Tung X.}, publisher = {Department of IT Management Shidler College of Business University of Hawaii}, address = {Honolulu, HI}, isbn = {978-0-99813-317-1}, pages = {4516 -- 4525}, year = {2024}, abstract = {In recent years, the evaluation of digital platforms has become an important focus in the field of information systems science. The identification of influential indicators that drive changes in digital platforms, specifically those related to openness, is still an unresolved issue. This paper addresses the challenge of identifying measurable indicators and characterizing the transition from launch to maturity in digital platforms. It proposes a systematic analytical approach to identify relevant openness indicators for evaluation purposes. The main contributions of this study are the following (1) the development of a comprehensive procedure for analyzing indicators, (2) the categorization of indicators as evaluation metrics within a multidimensional grid-box model, (3) the selection and evaluation of relevant indicators, (4) the identification and assessment of digital platform architectures during the launch-to-maturity transition, and (5) the evaluation of the applicability of the conceptualization and design process for digital platform evaluation.}, language = {en} } @book{HermannsBoehmeMeyeringetal.2023, author = {Hermanns, Jolanda and B{\"o}hme, Katrin and Meyering, Meike and Fuchs, Isabelle and Wagner, Simon and Krauskopf, Karsten and Knigge, Michel and Rother, Stefanie and Tosch, Frank and Wendland, Mirko and Wulff, Peter and Mientus, Lukas and Nowak, Anna and Borowski, Andreas and Baer, Ella and Bosch, Jannis and Wilbert, J{\"u}rgen and Br{\"a}sel, Tim and Fenn, Monika and Kortenkamp, Ulrich and Kuzle, Ana and Reitz-Koncebovski, Karen and Burg, Paula and Lampart, Fabian and Leubner, Martin and Freitag-Hild, Britta and Bitmann, Anna and Reinhardt, Susanne and Roos, Jana and Hußner, Isabell and B{\"o}rner, Dustin and Lazarides, Rebecca and Glowinski, Ingrid and Autenrieth, Marijke and Radke, Thea and Ehlert, Antje and Menke, Anne and Haupenthal, Anna and Schramm, Satyam Antonio and Kruse, Julia and K{\"o}rner, Dorothea and Fischer, Jakob Thomas and Kayser, Daniela Niesta}, title = {PSI-Potsdam}, series = {Potsdamer Beitr{\"a}ge f{\"u}r Lehrkr{\"a}ftebildung und Bildungsforschung}, journal = {Potsdamer Beitr{\"a}ge f{\"u}r Lehrkr{\"a}ftebildung und Bildungsforschung}, number = {3}, editor = {Hermanns, Jolanda}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-568-2}, issn = {2626-3556}, doi = {10.25932/publishup-60187}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-601875}, publisher = {Universit{\"a}t Potsdam}, pages = {393}, year = {2023}, abstract = {An der Universit{\"a}t Potsdam wird seit 2015 im Rahmen der „Qualit{\"a}tsoffensive Lehrerbildung" das Projekt „Professionalisierung - Schulpraktische Studien - Inklusion" (PSI-Potsdam) durchgef{\"u}hrt und am Zentrum f{\"u}r Lehrerbildung und Bildungsforschung (ZeLB) koordiniert. Zur ersten Projektf{\"o}rderphase (2015-2018) erschien der Band „PSI-Potsdam - Ergebnisbericht zu den Aktivit{\"a}ten im Rahmen der Qualit{\"a}tsoffensive Lehrerbildung (2015-2018)" zum Auftakt der Reihe „Potsdamer Beitr{\"a}ge zur Lehrerbildung und Bildungsforschung". Der vorliegende Band aus der gleichen Reihe gibt in den Kapiteln „Erhebungen", „Lehrkonzepte" und „Vernetzungen" einen {\"U}berblick {\"u}ber alle Teilprojekte der zweiten Projektf{\"o}rderphase (2019-2023). Wissenschaftler:innen aus verschiedenen Fachdidaktiken, Fachwissenschaften sowie aus den Bildungswissenschaften und der Inklusionsp{\"a}dagogik haben im Rahmen des Projektes kooperiert. Sowohl praxisnahe Forschung als auch die Entwicklung neuer Lehrkonzepte sowie Strategien zur Vernetzung innerhalb der Lehrkr{\"a}ftebildung stehen im Fokus dieses Bandes. Die Praxisphasen, die im Rahmen des „Potsdamer Modells der Lehrerbildung" eine zentrale Rolle spielen, wurden in einer großen Studie {\"u}ber alle Praxisphasen untersucht. Der Band gibt interessante Einblicke in die Ergebnisse der Teilprojekte und Anregungen sowohl f{\"u}r die eigene Forschung als auch f{\"u}r Entwicklungsarbeit wie zum Beispiel die Entwicklung neuer Lehrkonzepte. Herausgegeben wird dieser Band von PD Dr. Jolanda Hermanns (Gesamtkoordinatorin PSI-Potsdam und Chemiedidaktikerin).}, language = {de} } @phdthesis{Buschmann2021, author = {Buschmann, Jana}, title = {Nutzungsfokussierte Evaluation in der Lehrkr{\"a}ftefortbildung Belcantare Brandenburg f{\"u}r musikunterrichtende Grundschullehrer*innen im l{\"a}ndlichen Raum}, doi = {10.25932/publishup-52564}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-525642}, school = {Universit{\"a}t Potsdam}, pages = {346}, year = {2021}, abstract = {Die vorliegende Publikation der Dissertationsschrift „Nutzungsfokussierte Evaluation in der Lehrkr{\"a}ftefortbildung Belcantare Brandenburg f{\"u}r musikunterrichtende Grundschul-lehrer*innen im l{\"a}ndlichen Raum" ist eine akteursorientierte, explorativ angelegte Evaluation. Seit 2011 f{\"u}hrt in den Regionen des Landes Brandenburg der Landesmusikrat Brandenburg e.V. in Kooperation mit mehreren Institutionen die zweij{\"a}hrige Fortbildung f{\"u}r fachnah sowie ausgebildete Musiklehrkr{\"a}fte im Kompetenzfeld Singen und Lieddidaktik durch. Der zugrunde liegende Evaluationsansatz stellt die Interessen der kooperierenden Partner, welche praktische Konsequenzen aus den Ergebnissen der Evaluation zu ziehen beabsichtigen, in den Mittelpunkt der Forschungsarbeit. Es handelt sich somit um eine Auftragsforschung. Der Evaluation kommen die Funktionen zu, die inhaltliche Qualit{\"a}t der Lehrkr{\"a}ftefortbildung zu sichern und zu optimieren, den Erkenntnisgewinn zur Gestaltung eines fachdidaktischen Coachings zu erweitern, die Forschungsergebnisse zur Legitimation und Partizipation sichtbar zu machen sowie analytische Entscheidungshilfe zur Weiterf{\"u}hrung Belcantare Brandenburgs nach 2022 bereitzustellen. Die von den Akteuren an die Autorin herangetragenen Forschungsanliegen wurden zu vier Fragestellungen zusammengefasst: 1. Wie zufrieden sind die Teilnehmenden mit der Veranstaltungsreihe? 2. Welche fachlichen, didaktischen und pers{\"o}nlichen Entwicklungen stellen sich w{\"a}hrend des Fortbildungszeitraumes aus der Wahrnehmungsperspektive der teilnehmenden Lehrkr{\"a}fte ein? 3. Wie beurteilen die Coaching-Beteiligten die Chancen und Grenzen des musikdidaktischen Coachings als Fortbildungsform? 4. Welche Schlussfolgerungen lassen sich hinsichtlich professioneller Lehrkr{\"a}ftefortbildung aus der Gegen{\"u}berstellung der empirischen Erkenntnisse mit denen der Theorie ziehen? Diese Forschungsfragen wurden in zwei Forschungsphasen beantwortet: 1. Der empirische Datenkorpus wurde zwischen 2011-2015 gebildet. In dieser Zeit hatten zur projektbegleitenden Qualit{\"a}tssicherung und -weiterf{\"u}hrung der Pilot- und Folgestaffel Belcantare Brandenburgs die Forschungsfragen 1, 2 und 3 besondere Relevanz. Die Evaluationsstudie ist explorativ angelegt: Die Variablen zu den Forschungsfragen 1 und 2 sind durch Dokumentenanalysen sowie Interview-auswertungen mit der Projektleitung und teilnehmenden Lehrkr{\"a}ften sukzessive herausgearbeitet. Ebenso entsprechen die halb-geschlossenen Frageb{\"o}gen als zentrale Erhebungsinstrumente der Forschungsfragen 1 und 2 dem explorativen Charakter und stellen auf diesem Weg sicher, dass den Teilnehmer*innen (N=40) die M{\"o}glichkeit zum Einbringen eigener Perspektiven einger{\"a}umt wurde. Mit der Gesamtnote „sehr gut" (1,39) seitens der befragten Lehrkr{\"a}fte gilt die Gestaltung der Veranstaltungsreihe als ein Best-Practice-Beispiel: F{\"u}r die Lehrkr{\"a}fte sind das handlungsorientierte Erarbeiten von sch{\"u}lerpassenden und thematisch geeigneten, unmittelbar einsetzbaren oder wiederholt ge{\"u}bten Unterrichtsinhalten, Lerngegenst{\"a}nden und dazu passenden Materialien f{\"u}r den Unterricht die wesentlichen Kriterien zur Nutzung einer solchen Professionalisierungsmaßnahme. Die Lehrkr{\"a}fteentwicklungen beider beforschter Staffeln zeigen, dass die fachnahen Kr{\"a}fte bei sich gr{\"o}ßere Entwicklungszuw{\"a}chse nach Beendigung des Projektes wahrnehmen als die Fachkr{\"a}fte. Gleichzeitig liegt die selbsteingesch{\"a}tzte Fachkompetenz der fachnahen Kr{\"a}fte zu Fortbildungsende unter denen der Fachkr{\"a}fte. Der Forschungsfrage 3 liegt ein ausschließlich qualitatives Design (N=16) zugrunde. Im Ergebnis konnten die Offene Form fachdidaktischen Coachings definiert werden, deren Parameter beschrieben und wesentliche Eigenschaften von Coach-Constellationen f{\"u}r ein binnendifferenziertes Coaching in der Lehrkr{\"a}ftefortbildung benannt werden. 2. Im Mai 2019 bildete sich aufgrund des sich versch{\"a}rfenden Fachkr{\"a}ftemangels in Brandenburg das Bestreben der Kooperationspartner heraus, die Lehrkr{\"a}ftefortbildung nach 2022 als qualit{\"a}tssichernde Maßnahme fortf{\"u}hren zu wollen. Diese Situation f{\"u}hrte 2019 zur Aufnahme der Forschungsfrage 4, die eine umfassende und aktualisierte Analyse der theoretischen und bildungspolitischen Hintergr{\"u}nde der Intervention implizierte, mit dem Ziel, den Erkenntnisstand der Evaluation f{\"u}r eine erneute Empfehlung zu vertiefen. Das Thematisieren sowie das Gestalten von Selbstlernprozessen in der professionalisierenden Lehrkr{\"a}ftefortbildung stellte sich hierbei als ein zentrales Merkmal innovativer Lernkultur heraus. Die Publikation gliedert sich in vier Teile: Teil I stellt den Forschungsstand zur professionalisierenden Lehrkr{\"a}fte¬fortbildung aus bildungswissenschaftlicher und musikp{\"a}da-gogischer Perspektive dar. Teil II der Arbeit stellt die komplexen Begr{\"u}ndungs-zusammenh{\"a}nge zum Evaluationsgegenstand her. Im III. Teil der Arbeit ist die Evaluationsstudie zu finden. Deren induktiv erschlossene Erkenntnisse werden in Teil IV der Arbeit dem Forschungsstand zur professionalisierenden Lehrkr{\"a}ftefortbildung gegen{\"u}bergestellt.}, language = {de} } @article{WilsonGuivarchKriegleretal.2021, author = {Wilson, Charlie and Guivarch, C{\´e}line and Kriegler, Elmar and van Ruijven, Bas and van Vuuren, Detlef P. and Krey, Volker and Schwanitz, Valeria Jana and Thompson, Erica L.}, title = {Evaluating process-based integrated assessment models of climate change mitigation}, series = {Climatic change}, volume = {166}, journal = {Climatic change}, number = {1-2}, publisher = {Springer Science + Business Media B.V.}, address = {Dordrecht}, issn = {0165-0009}, doi = {10.1007/s10584-021-03099-9}, pages = {22}, year = {2021}, abstract = {Process-based integrated assessment models (IAMs) project long-term transformation pathways in energy and land-use systems under what-if assumptions. IAM evaluation is necessary to improve the models' usefulness as scientific tools applicable in the complex and contested domain of climate change mitigation. We contribute the first comprehensive synthesis of process-based IAM evaluation research, drawing on a wide range of examples across six different evaluation methods including historical simulations, stylised facts, and model diagnostics. For each evaluation method, we identify progress and milestones to date, and draw out lessons learnt as well as challenges remaining. We find that each evaluation method has distinctive strengths, as well as constraints on its application. We use these insights to propose a systematic evaluation framework combining multiple methods to establish the appropriateness, interpretability, credibility, and relevance of process-based IAMs as useful scientific tools for informing climate policy. We also set out a programme of evaluation research to be mainstreamed both within and outside the IAM community.}, language = {en} } @inproceedings{GrumKlippertAlbersetal.2021, author = {Grum, Marcus and Klippert, Monika and Albers, Albert and Gronau, Norbert and Thim, Christof}, title = {Examining the quality of knowledge transfers}, series = {Proceedings of the Design Society}, volume = {1}, booktitle = {Proceedings of the Design Society}, publisher = {Cambridge University Press}, address = {Cambridge}, issn = {2732-527X}, doi = {10.1017/pds.2021.404}, pages = {1431 -- 1440}, year = {2021}, abstract = {Already successfully used products or designs, past projects or our own experiences can be the basis for the development of new products. As reference products or existing knowledge, it is reused in the development process and across generations of products. Since further, products are developed in cooperation, the development of new product generations is characterized by knowledge-intensive processes in which information and knowledge are exchanged between different kinds of knowledge carriers. The particular knowledge transfer here describes the identification of knowledge, its transmission from the knowledge carrier to the knowledge receiver, and its application by the knowledge receiver, which includes embodied knowledge of physical products. Initial empirical findings of the quantitative effects regarding the speed of knowledge transfers already have been examined. However, the factors influencing the quality of knowledge transfer to increase the efficiency and effectiveness of knowledge transfer in product development have not yet been examined empirically. Therefore, this paper prepares an experimental setting for the empirical investigation of the quality of knowledge transfers.}, language = {en} } @book{RolfesSchubarthKohlstrucketal.2020, author = {Rolfes, Manfred and Schubarth, Wilfried and Kohlstruck, Michael and Bode, Dagmar}, title = {Das Handlungskonzept „Tolerantes Brandenburg" im Fokus}, series = {Potsdamer Geographische Praxis}, journal = {Potsdamer Geographische Praxis}, number = {15}, editor = {Rolfes, Manfred}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-483-8}, issn = {2194-1599}, doi = {10.25932/publishup-44141}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441418}, publisher = {Universit{\"a}t Potsdam}, pages = {172}, year = {2020}, abstract = {Dieser Band der Reihe „Potsdamer Geographische Praxis" enth{\"a}lt drei Beitr{\"a}ge, die sich mit dem Handlungskonzept „Tolerantes Brandenburg" der Brandenburgischen Landesregierung befassen. In allen Beitr{\"a}gen wird auf der Grundlage empirischer Erhebungen analysiert, wie dieses Konzept zum Umgang mit Rechtsextremismus und Rechtspopulismus sowie zur Demokratief{\"o}rderung in den letzten Jahren umgesetzt wurde. Die ersten beiden Beitr{\"a}ge haben die sogenannten Zukunftsdialoge „Tolerantes Brandenburg" zum Gegenstand, die in den Jahren 2015 bis 2017 in allen kreisfreien St{\"a}dten und Landkreisen Brandenburgs durchgef{\"u}hrt wurden. Der erste Beitrag von Schubarth, Kohlstruck und Rolfes beinhaltet die Ergebnisse der wissenschaftlichen Beobachtung der Zukunftsdialoge; die Ergebnisse beruhen {\"u}berwiegend auf teilnehmenden Beobachtungen der Zukunftsdialoge und qualitativen Interviews mit Teilnehmenden. Der zweite Beitrag von Bode und Rolfes basiert auf einer quantitativen Methodik und enth{\"a}lt die Auswertungen einer standardisierten Befragung der Teilnehmer/innen der Zukunftsdialoge. Die Ergebnisse beider Untersuchungen liefern wichtige Erkenntnisse und gute Ansatzpunkte, wie einerseits die Institutionen des Beratungsnetzwerks „Tolerantes Brandenburg" und das Handlungskonzept auf lokaler Ebene eine gr{\"o}ßere Bekanntheit erlangen k{\"o}nnten und andererseits, welche Schritte hilfreich w{\"a}ren, um eine (noch) st{\"a}rkere Verankerung des Handlungskonzeptes in den Regionen zu erreichen. Beim dritten Beitrag von Schubarth, Kohlstruck und Rolfes handelt es sich eine Expertise aus dem Jahr 2019. Der Beitrag liefert einen mehrdimensionalen Blick auf das Handlungskonzept aus unterschiedlichen internen wie externen Perspektiven. Dabei wird vor allem auf die gesellschaftlichen und politischen Ver{\"a}nderungen fokussiert, die sich seit 2014 im Handlungsfeld „Demokratiest{\"a}rkung und Auseinandersetzung mit dem Rechtsextremismus" ergeben haben. Grundlage der Expertise waren leitfadenzentrierte Interviews.}, language = {de} } @article{GhahremaniGiese2020, author = {Ghahremani, Sona and Giese, Holger}, title = {Evaluation of self-healing systems}, series = {Computers}, volume = {9}, journal = {Computers}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {2073-431X}, doi = {10.3390/computers9010016}, pages = {32}, year = {2020}, abstract = {Evaluating the performance of self-adaptive systems is challenging due to their interactions with often highly dynamic environments. In the specific case of self-healing systems, the performance evaluations of self-healing approaches and their parameter tuning rely on the considered characteristics of failure occurrences and the resulting interactions with the self-healing actions. In this paper, we first study the state-of-the-art for evaluating the performances of self-healing systems by means of a systematic literature review. We provide a classification of different input types for such systems and analyse the limitations of each input type. A main finding is that the employed inputs are often not sophisticated regarding the considered characteristics for failure occurrences. To further study the impact of the identified limitations, we present experiments demonstrating that wrong assumptions regarding the characteristics of the failure occurrences can result in large performance prediction errors, disadvantageous design-time decisions concerning the selection of alternative self-healing approaches, and disadvantageous deployment-time decisions concerning parameter tuning. Furthermore, the experiments indicate that employing multiple alternative input characteristics can help with reducing the risk of premature disadvantageous design-time decisions.}, language = {en} } @misc{Knigge2020, author = {Knigge, Michel}, title = {Use of evidence to promote inclusive education development commentary on Mel Ainscow. Promoting inclusion and equity in education}, series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, number = {1}, issn = {1866-8364}, doi = {10.25932/publishup-51914}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-519142}, pages = {6}, year = {2020}, abstract = {In his essay, Mel Ainscow looks at inclusion and equity from an international perspective and makes suggestions on how to develop inclusive education in a 'whole-system approach'. After discussing different conceptions of inclusion and equity, he describes international policies which address them. From this international macro-level, Ainscow zooms in to the meso-level of the school and its immediate environment, defining dimensions to be considered for an inclusive school development. One of these dimensions is the 'use of evidence'. In my comment, I want to focus on this dimension and discuss its scope and the potential to apply it in inclusive education development. As a first and important precondition, Ainscow explains that different circumstances lead to different linguistic uses of the term 'inclusive education'. Thus, the term 'inclusive education' does not refer to an identical set of objectives across countries, and neither does the term 'equity'.}, language = {en} } @article{Knigge2020, author = {Knigge, Michel}, title = {Use of evidence to promote inclusive education development commentary on Mel Ainscow. Promoting inclusion and equity in education}, series = {Nordic Journal of Studies in Educational Policy}, volume = {6}, journal = {Nordic Journal of Studies in Educational Policy}, number = {1}, publisher = {Taylor \& Francis Group}, address = {London}, issn = {2002-0317}, doi = {10.1080/20020317.2020.1730093}, pages = {21 -- 24}, year = {2020}, abstract = {In his essay, Mel Ainscow looks at inclusion and equity from an international perspective and makes suggestions on how to develop inclusive education in a 'whole-system approach'. After discussing different conceptions of inclusion and equity, he describes international policies which address them. From this international macro-level, Ainscow zooms in to the meso-level of the school and its immediate environment, defining dimensions to be considered for an inclusive school development. One of these dimensions is the 'use of evidence'. In my comment, I want to focus on this dimension and discuss its scope and the potential to apply it in inclusive education development. As a first and important precondition, Ainscow explains that different circumstances lead to different linguistic uses of the term 'inclusive education'. Thus, the term 'inclusive education' does not refer to an identical set of objectives across countries, and neither does the term 'equity'.}, language = {en} } @misc{AlbertOwolabiGebeletal.2020, author = {Albert, Justin Amadeus and Owolabi, Victor and Gebel, Arnd and Brahms, Clemens Markus and Granacher, Urs and Arnrich, Bert}, title = {Evaluation of the Pose Tracking Performance of the Azure Kinect and Kinect v2 for Gait Analysis in Comparison with a Gold Standard}, series = {Postprints der Universit{\"a}t Potsdam : Reihe der Digital Engineering Fakult{\"a}t}, journal = {Postprints der Universit{\"a}t Potsdam : Reihe der Digital Engineering Fakult{\"a}t}, number = {3}, doi = {10.25932/publishup-48413}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-484130}, pages = {24}, year = {2020}, abstract = {Gait analysis is an important tool for the early detection of neurological diseases and for the assessment of risk of falling in elderly people. The availability of low-cost camera hardware on the market today and recent advances in Machine Learning enable a wide range of clinical and health-related applications, such as patient monitoring or exercise recognition at home. In this study, we evaluated the motion tracking performance of the latest generation of the Microsoft Kinect camera, Azure Kinect, compared to its predecessor Kinect v2 in terms of treadmill walking using a gold standard Vicon multi-camera motion capturing system and the 39 marker Plug-in Gait model. Five young and healthy subjects walked on a treadmill at three different velocities while data were recorded simultaneously with all three camera systems. An easy-to-administer camera calibration method developed here was used to spatially align the 3D skeleton data from both Kinect cameras and the Vicon system. With this calibration, the spatial agreement of joint positions between the two Kinect cameras and the reference system was evaluated. In addition, we compared the accuracy of certain spatio-temporal gait parameters, i.e., step length, step time, step width, and stride time calculated from the Kinect data, with the gold standard system. Our results showed that the improved hardware and the motion tracking algorithm of the Azure Kinect camera led to a significantly higher accuracy of the spatial gait parameters than the predecessor Kinect v2, while no significant differences were found between the temporal parameters. Furthermore, we explain in detail how this experimental setup could be used to continuously monitor the progress during gait rehabilitation in older people.}, language = {en} } @article{AlbertOwolabiGebeletal.2020, author = {Albert, Justin Amadeus and Owolabi, Victor and Gebel, Arnd and Brahms, Clemens Markus and Granacher, Urs and Arnrich, Bert}, title = {Evaluation of the Pose Tracking Performance of the Azure Kinect and Kinect v2 for Gait Analysis in Comparison with a Gold Standard}, series = {Sensors}, volume = {20}, journal = {Sensors}, number = {18}, publisher = {MDPI}, address = {Basel}, issn = {1424-8220}, doi = {10.3390/s20185104}, pages = {22}, year = {2020}, abstract = {Gait analysis is an important tool for the early detection of neurological diseases and for the assessment of risk of falling in elderly people. The availability of low-cost camera hardware on the market today and recent advances in Machine Learning enable a wide range of clinical and health-related applications, such as patient monitoring or exercise recognition at home. In this study, we evaluated the motion tracking performance of the latest generation of the Microsoft Kinect camera, Azure Kinect, compared to its predecessor Kinect v2 in terms of treadmill walking using a gold standard Vicon multi-camera motion capturing system and the 39 marker Plug-in Gait model. Five young and healthy subjects walked on a treadmill at three different velocities while data were recorded simultaneously with all three camera systems. An easy-to-administer camera calibration method developed here was used to spatially align the 3D skeleton data from both Kinect cameras and the Vicon system. With this calibration, the spatial agreement of joint positions between the two Kinect cameras and the reference system was evaluated. In addition, we compared the accuracy of certain spatio-temporal gait parameters, i.e., step length, step time, step width, and stride time calculated from the Kinect data, with the gold standard system. Our results showed that the improved hardware and the motion tracking algorithm of the Azure Kinect camera led to a significantly higher accuracy of the spatial gait parameters than the predecessor Kinect v2, while no significant differences were found between the temporal parameters. Furthermore, we explain in detail how this experimental setup could be used to continuously monitor the progress during gait rehabilitation in older people.}, language = {en} } @article{KlattNoelMusculusetal.2019, author = {Klatt, Stefanie and Noel, Benjamin and Musculus, Lisa and Werner, Karsten and Laborde, Sylvain and Lopes, Mariana Calabria and Greco, Pablo J. and Memmert, Daniel and Raab, Markus}, title = {Creative and Intuitive Decision-Making Processes: A Comparison of Brazilian and German Soccer Coaches and Players}, series = {Research Quarterly for Exercise and Sport}, volume = {90}, journal = {Research Quarterly for Exercise and Sport}, number = {4}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {0270-1367}, doi = {10.1080/02701367.2019.1642994}, pages = {651 -- 665}, year = {2019}, abstract = {Purpose: The concepts of creativity and intuition have been well studied in isolation, but less is known about their distinctive contributions to option generation in decision making. Method: We examined the relation between creative and intuitive decision making in two studies-one involving coaches and one involving soccer players-using video footage of real soccer matches. Additionally, we analyzed whether this relation is culture generic or culture specific by conducting matched cross-cultural studies in a European and a South American country. Results: In Study 1, results indicate a conceptual overlap of creativity and intuition for Brazilian and German soccer coaches. Furthermore, coaches did not differ in their evaluation of creative and intuitive actions of players of both cultures. In Study 2, we found that for both subsamples the total number of generated options was positively correlated with the quality of the first and the final option and that the quality of players' first (intuitive) option was higher than that of options generated later. Moreover, results indicate a positive correlation between a player's creativity score and the quality of the first generated option for the whole sample. Conclusion: Overall, our findings provide meaningful information regarding athletes' and coaches' option-generation processes in decision making in complex team sports.}, language = {en} } @misc{BruechnerRenzKlingbeil2019, author = {Bruechner, Dominik and Renz, Jan and Klingbeil, Mandy}, title = {Creating a Framework for User-Centered Development and Improvement of Digital Education}, series = {Scale}, journal = {Scale}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-4503-6804-9}, doi = {10.1145/3330430.3333644}, pages = {4}, year = {2019}, abstract = {We investigate how the technology acceptance and learning experience of the digital education platform HPI Schul-Cloud (HPI School Cloud) for German secondary school teachers can be improved by proposing a user-centered research and development framework. We highlight the importance of developing digital learning technologies in a user-centered way to take differences in the requirements of educators and students into account. We suggest applying qualitative and quantitative methods to build a solid understanding of a learning platform's users, their needs, requirements, and their context of use. After concept development and idea generation of features and areas of opportunity based on the user research, we emphasize on the application of a multi-attribute utility analysis decision-making framework to prioritize ideas rationally, taking results of user research into account. Afterward, we recommend applying the principle build-learn-iterate to build prototypes in different resolutions while learning from user tests and improving the selected opportunities. Last but not least, we propose an approach for continuous short- and long-term user experience controlling and monitoring, extending existing web- and learning analytics metrics.}, language = {en} } @article{WaitelonisJuergesSack2019, author = {Waitelonis, J{\"o}rg and J{\"u}rges, Henrik and Sack, Harald}, title = {Remixing entity linking evaluation datasets for focused benchmarking}, series = {Semantic Web}, volume = {10}, journal = {Semantic Web}, number = {2}, publisher = {IOS Press}, address = {Amsterdam}, issn = {1570-0844}, doi = {10.3233/SW-180334}, pages = {385 -- 412}, year = {2019}, abstract = {In recent years, named entity linking (NEL) tools were primarily developed in terms of a general approach, whereas today numerous tools are focusing on specific domains such as e.g. the mapping of persons and organizations only, or the annotation of locations or events in microposts. However, the available benchmark datasets necessary for the evaluation of NEL tools do not reflect this focalizing trend. We have analyzed the evaluation process applied in the NEL benchmarking framework GERBIL [in: Proceedings of the 24th International Conference on World Wide Web (WWW'15), International World Wide Web Conferences Steering Committee, Republic and Canton of Geneva, Switzerland, 2015, pp. 1133-1143, Semantic Web 9(5) (2018), 605-625] and all its benchmark datasets. Based on these insights we have extended the GERBIL framework to enable a more fine grained evaluation and in depth analysis of the available benchmark datasets with respect to different emphases. This paper presents the implementation of an adaptive filter for arbitrary entities and customized benchmark creation as well as the automated determination of typical NEL benchmark dataset properties, such as the extent of content-related ambiguity and diversity. These properties are integrated on different levels, which also enables to tailor customized new datasets out of the existing ones by remixing documents based on desired emphases. Besides a new system library to enrich provided NIF [in: International Semantic Web Conference (ISWC'13), Lecture Notes in Computer Science, Vol. 8219, Springer, Berlin, Heidelberg, 2013, pp. 98-113] datasets with statistical information, best practices for dataset remixing are presented, and an in depth analysis of the performance of entity linking systems on special focus datasets is presented.}, language = {en} } @misc{BenderGrumGronauetal.2019, author = {Bender, Benedict and Grum, Marcus and Gronau, Norbert and Alfa, Attahiru and Maharaj, B. T.}, title = {Design of a worldwide simulation system for distributed cyber-physical production networks}, series = {2019 IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC)}, journal = {2019 IEEE International Conference on Engineering, Technology and Innovation (ICE/ITMC)}, publisher = {IEEE}, address = {New York}, isbn = {978-1-7281-3401-7}, issn = {2334-315X}, doi = {10.1109/ICE.2019.8792609}, pages = {7}, year = {2019}, abstract = {Modern production infrastructures of globally operating companies usually consist of multiple distributed production sites. While the organization of individual sites consisting of Industry 4.0 components itself is demanding, new questions regarding the organization and allocation of resources emerge considering the total production network. In an attempt to face the challenge of efficient distribution and processing both within and across sites, we aim to provide a hybrid simulation approach as a first step towards optimization. Using hybrid simulation allows us to include real and simulated concepts and thereby benchmark different approaches with reasonable effort. A simulation concept is conceptualized and demonstrated qualitatively using a global multi-site example.}, language = {en} } @misc{GhahremaniGiese2019, author = {Ghahremani, Sona and Giese, Holger}, title = {Performance evaluation for self-healing systems}, series = {2019 IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS*W)}, journal = {2019 IEEE 4th International Workshops on Foundations and Applications of Self* Systems (FAS*W)}, publisher = {IEEE}, address = {New York}, isbn = {978-1-7281-2406-3}, doi = {10.1109/FAS-W.2019.00039}, pages = {116 -- 119}, year = {2019}, abstract = {Evaluating the performance of self-adaptive systems (SAS) is challenging due to their complexity and interaction with the often highly dynamic environment. In the context of self-healing systems (SHS), employing simulators has been shown to be the most dominant means for performance evaluation. Simulating a SHS also requires realistic fault injection scenarios. We study the state of the practice for evaluating the performance of SHS by means of a systematic literature review. We present the current practice and point out that a more thorough and careful treatment in evaluating the performance of SHS is required.}, language = {en} } @phdthesis{Perlich2019, author = {Perlich, Anja}, title = {Digital collaborative documentation in mental healthcare}, doi = {10.25932/publishup-44029}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440292}, school = {Universit{\"a}t Potsdam}, pages = {x, 135}, year = {2019}, abstract = {With the growth of information technology, patient attitudes are shifting - away from passively receiving care towards actively taking responsibility for their well- being. Handling doctor-patient relationships collaboratively and providing patients access to their health information are crucial steps in empowering patients. In mental healthcare, the implicit consensus amongst practitioners has been that sharing medical records with patients may have an unpredictable, harmful impact on clinical practice. In order to involve patients more actively in mental healthcare processes, Tele-Board MED (TBM) allows for digital collaborative documentation in therapist-patient sessions. The TBM software system offers a whiteboard-inspired graphical user interface that allows therapist and patient to jointly take notes during the treatment session. Furthermore, it provides features to automatically reuse the digital treatment session notes for the creation of treatment session summaries and clinical case reports. This thesis presents the development of the TBM system and evaluates its effects on 1) the fulfillment of the therapist's duties of clinical case documentation, 2) patient engagement in care processes, and 3) the therapist-patient relationship. Following the design research methodology, TBM was developed and tested in multiple evaluation studies in the domains of cognitive behavioral psychotherapy and addiction care. The results show that therapists are likely to use TBM with patients if they have a technology-friendly attitude and when its use suits the treatment context. Support in carrying out documentation duties as well as fulfilling legal requirements contributes to therapist acceptance. Furthermore, therapists value TBM as a tool to provide a discussion framework and quick access to worksheets during treatment sessions. Therapists express skepticism, however, regarding technology use in patient sessions and towards complete record transparency in general. Patients expect TBM to improve the communication with their therapist and to offer a better recall of discussed topics when taking a copy of their notes home after the session. Patients are doubtful regarding a possible distraction of the therapist and usage in situations when relationship-building is crucial. When applied in a clinical environment, collaborative note-taking with TBM encourages patient engagement and a team feeling between therapist and patient. Furthermore, it increases the patient's acceptance of their diagnosis, which in turn is an important predictor for therapy success. In summary, TBM has a high potential to deliver more than documentation support and record transparency for patients, but also to contribute to a collaborative doctor-patient relationship. This thesis provides design implications for the development of digital collaborative documentation systems in (mental) healthcare as well as recommendations for a successful implementation in clinical practice.}, language = {en} } @phdthesis{vonKaphengst2019, author = {von Kaphengst, Dragana}, title = {Project's management quality in development cooperation}, doi = {10.25932/publishup-43099}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-430992}, school = {Universit{\"a}t Potsdam}, pages = {xvii, 237}, year = {2019}, abstract = {In light of the debate on the consequences of competitive contracting out of traditionally public services, this research compares two mechanisms used to allocate funds in development cooperation—direct awarding and competitive contracting out—aiming to identify their potential advantages and disadvantages. The agency theory is applied within the framework of rational-choice institutionalism to study the institutional arrangements that surround two different money allocation mechanisms, identify the incentives they create for the behavior of individual actors in the field, and examine how these then transfer into measurable differences in managerial quality of development aid projects. In this work, project management quality is seen as an important determinant of the overall project success. For data-gathering purposes, the German development agency, the Gesellschaft f{\"u}r Internationale Zusammenarbeit (GIZ), is used due to its unique way of work. Whereas the majority of projects receive funds via direct-award mechanism, there is a commercial department, GIZ International Services (GIZ IS) that has to compete for project funds. The data concerning project management practices on the GIZ and GIZ IS projects was gathered via a web-based, self-administered survey of project team leaders. Principal component analysis was applied to reduce the dimensionality of the independent variable to total of five components of project management. Furthermore, multiple regression analysis identified the differences between the separate components on these two project types. Enriched by qualitative data gathered via interviews, this thesis offers insights into everyday managerial practices in development cooperation and identifies the advantages and disadvantages of the two allocation mechanisms. The thesis first reiterates the responsibility of donors and implementers for overall aid effectiveness. It shows that the mechanism of competitive contracting out leads to better oversight and control of implementers, fosters deeper cooperation between the implementers and beneficiaries, and has a potential to strengthen ownership of recipient countries. On the other hand, it shows that the evaluation quality does not tremendously benefit from the competitive allocation mechanism and that the quality of the component knowledge management and learning is better when direct-award mechanisms are used. This raises questions about the lacking possibilities of actors in the field to learn about past mistakes and incorporate the finings into the future interventions, which is one of the fundamental issues of aid effectiveness. Finally, the findings show immense deficiencies in regard to oversight and control of individual projects in German development cooperation.}, language = {en} } @phdthesis{Ullrich2018, author = {Ullrich, Andr{\´e}}, title = {Eigenschaften wandlungsf{\"a}higer Systeme}, publisher = {GITO}, address = {Berlin}, isbn = {978-3-95545-265-0}, school = {Universit{\"a}t Potsdam}, pages = {XIX, 403}, year = {2018}, abstract = {Wandlungsf{\"a}higkeit beschreibt die F{\"a}higkeit eines Systems, proaktiv oder reaktiv Maßnahmen f{\"u}r die Modifikation seiner Eigenschaften schnell und effizient zu entwickeln, umzusetzen und anzuwenden sowie sich proaktiv darauf vorzubereiten, inaktiv zu sein und passiv Einwirkungen aus der Umwelt zu tolerieren. Die Eigenschaften wandlungsf{\"a}higer Systeme werden h{\"a}ufig als Indikatoren (z.B. Modularit{\"a}t, Wissen) verwendet. Dabei existiert eine Vielzahl potenzieller Indikatoren, deren jeweilige Relevanz jedoch ungekl{\"a}rt ist. Hier setzt die Zielstellung der vorliegenden Arbeit an. Das Erkenntnisziel ist die Erkl{\"a}rung der Wandlungsf{\"a}higkeit sozio-technischer Systeme. Zu diesem Zweck wird ein Erkl{\"a}rungsmodell der indikatorbasierten Wandlungsf{\"a}higkeit erstellt, das zum Nachweis von Wandlungsf{\"a}higkeit, zur Bewertung dieser sowie zur Systemanalyse genutzt werden kann. Weiterhin wird exemplarisch eine positive Korrelation von Wandlungsf{\"a}higkeit und Schnelligkeit sowie Effizienz bei Ver{\"a}nderungsprojekten nachgewiesen.}, language = {de} } @article{SallenHemmingRichartz2017, author = {Sallen, Jeffrey and Hemming, Karen and Richartz, Alfred}, title = {Facilitating dual careers by improving resistance to chronic stress}, series = {European journal of sport science : official journal of the European College of Sport Science}, volume = {18}, journal = {European journal of sport science : official journal of the European College of Sport Science}, number = {1}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {1746-1391}, doi = {10.1080/17461391.2017.1407363}, pages = {112 -- 122}, year = {2017}, abstract = {The starting point of this contribution is the potential risk to health and performance from the combination of elite sporting careers with the pursuit of education. In European sport science and politics, structural measures to promote dual careers in elite sports have been discussed increasingly of late. In addition to organisational measures, there are calls for educational-psychological intervention programmes supporting the successful management of dual careers at the individual level. This paper presents an appropriate intervention programme and its evaluation: stress-resistance training for elite athletes (SRT-EA). It comprises 10 units, each lasting 90 minutes. It is intended for athletes and aims to improve their resistance to chronic stress. The evaluation was carried out in a quasi-experimental design, with three points of measurement (baseline, immediately after, and three months after) and two non-randomised groups: an intervention group (n=128) and an untreated control group (n=117). Participants were between 13 and 20 years of age (53.5\% male) and represented various Olympic sports. Outcome variables were assessed with questionnaires. Significant short- and mid-term intervention effects were explored. The intervention increased stress-related knowledge, general self-efficacy, and stress sensitivity. Chronic stress level, stress symptoms, and stress reactivity were reduced. In line with the intention of the intervention, the results showed short- and mid-term, small to medium-sized effects. Accordingly, separate measurements at the end of the intervention and three months later showed mostly positive subjective experiences. Thus, the results reinforce the hope that educational-psychological stress-management interventions can support dual careers.}, language = {en} }