@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}
}
@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}
}
@misc{ArniCaliendoKuennetal.2014,
  author    = {Arni, Patrick and Caliendo, Marco and K{\"u}nn, Steffen and Zimmermann, Klaus F.},
  title     = {The IZA evaluation dataset survey},
  series = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe},
  number    = {122},
  issn      = {1867-5808},
  doi       = {10.25932/publishup-43520},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435204},
  pages     = {22},
  year      = {2014},
  abstract  = {This reference paper describes the sampling and contents of the IZA Evaluation Dataset Survey and outlines its vast potential for research in labor economics. The data have been part of a unique IZA project to connect administrative data from the German Federal Employment Agency with innovative survey data to study the out-mobility of individuals to work. This study makes the survey available to the research community as a Scientific Use File by explaining the development, structure, and access to the data. Furthermore, it also summarizes previous findings with the survey data.},
  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}
}
@phdthesis{Borković2010,
  author    = {Borković, Vladimir},
  title     = {Evaluation kommunaler Sportprojekte zur sozialen Integration von Heranwachsenden},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-051-9},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-48186},
  school      = {Universit{\"a}t Potsdam},
  pages     = {372},
  year      = {2010},
  abstract  = {Gegenstand der Studie ist die Evaluation eines kommunalen Sportprojekts. Die Forschungsarbeit entstand aus der wachsenden Erkenntnis heraus, dass es nicht mehr nur um die Entwicklung und Durchf{\"u}hrung kommunaler oder sozialer Projekte geht, sondern zunehmend darauf ankommt, die Projektarbeit zu evaluieren, um ihren Einfluss auf die kommunale, soziale und personale Entwicklung zu pr{\"u}fen und in der Folge die Implementierung zu optimieren. Die unterschiedlichen Schritte in der Definition des theoretischen Rahmens, der Datenanalyse sowie der Erarbeitung der evaluativen Empfehlungen wurden unternommen mit dem Anspruch auf Modellcharakter, um f{\"u}r zuk{\"u}nftige Evaluationsvorhaben entsprechende Standards zu setzen. Die Grundidee des kommunalen Sportprojekts „Straßenfußball f{\"u}r Toleranz" ist innovativ: M{\"a}dchen und Jungen erobern durch gemeinsames Fußballspielen den {\"o}ffentlichen Raum. Sie spielen ohne Schiedsrichter und nach speziellen Regeln. Das Projekt richtet sich ausdr{\"u}cklich an sozial benachteiligte Jugendliche und bezieht gleichermaßen Jungen wie M{\"a}dchen ein.},
  language  = {de}
}
@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}
}
@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}
}
@misc{CaliendoSchmidl2016,
  author    = {Caliendo, Marco and Schmidl, Ricarda},
  title     = {Youth unemployment and active labor market policies in Europe},
  series = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe},
  number    = {125},
  issn      = {1867-5808},
  doi       = {10.25932/publishup-43695},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-436950},
  pages     = {32},
  year      = {2016},
  abstract  = {Since the economic crisis in 2008, European youth unemployment rates have been persistently high at around 20\% on average. The majority of European countries spends significant resources each year on active labor market programs (ALMP) with the aim of improving the integration prospects of struggling youths. Among the most common programs used are training courses, job search assistance and monitoring, subsidized employment, and public work programs. For policy makers, it is of upmost importance to know which of these programs work and which are able to achieve the intended goals - may it be the integration into the first labor market or further education. Based on a detailed assessment of the particularities of the youth labor market situation, we discuss the pros and cons of different ALMP types. We then provide a comprehensive survey of the recent evidence on the effectiveness of these ALMP for youth in Europe, highlighting factors that seem to promote or impede their effectiveness in practice. Overall, the findings with respect to employment outcomes are only partly promising. While job search assistance (with and without monitoring) results in overwhelmingly positive effects, we find more mixed effects for training and wage subsidies, whereas the effects for public work programs are clearly negative. The evidence on the impact of ALMP on furthering education participation as well as employment quality is scarce, requiring additional research and allowing only limited conclusions so far.},
  language  = {en}
}
@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{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}
}