@article{GruenewaldMeinel2015,
  author    = {Gr{\"u}newald, Franka and Meinel, Christoph},
  title     = {Implementation and Evaluation of Digital E-Lecture Annotation in Learning Groups to Foster Active Learning},
  series = {IEEE transactions on learning technologies},
  volume    = {8},
  journal   = {IEEE transactions on learning technologies},
  number    = {3},
  publisher = {Inst. of Electr. and Electronics Engineers},
  address   = {Los Alamitos},
  issn      = {1939-1382},
  doi       = {10.1109/TLT.2015.2396042},
  pages     = {286 -- 298},
  year      = {2015},
  abstract  = {The use of video lectures in distance learning involves the two major problems of searchability and active user participation. In this paper, we promote the implementation and usage of a collaborative educational video annotation functionality to overcome these two challenges. Different use cases and requirements, as well as details of the implementation, are explained. Furthermore, we suggest more improvements to foster a culture of participation and an algorithm for the extraction of semantic data. Finally, evaluations in the form of user tests and questionnaires in a MOOC setting are presented. The results of the evaluation are promising, as they indicate not only that students perceive it as useful, but also that the learning effectiveness increases. The combination of personal lecture video annotations with a semantic topic map was also evaluated positively and will thus be investigated further, as will the implementation in a MOOC context.},
  language  = {en}
}
@incollection{KiyGessnerLuckeetal.2015,
  author    = {Kiy, Alexander and Geßner, Hendrik and Lucke, Ulrike and Gr{\"u}newald, Franka},
  title     = {A Hybrid and Modular Framework for Mobile Campus Applications},
  series = {i-com},
  volume    = {2015},
  booktitle = {i-com},
  number    = {14},
  publisher = {de Gruyter},
  address   = {Berlin},
  issn      = {2196-6826},
  doi       = {10.1515/icom-2015-0016},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {63 -- 73},
  year      = {2015},
  abstract  = {Mobile devices and associated applications (apps) are an indispensable part of daily life and provide access to important information anytime and anywhere. However, the availability of university-wide services in the mobile sector is still poor. If they exist they usually result from individual activities of students and teachers. Mobile applications can have an essential impact on the improvement of students' self-organization as well as on the design and enhancement of specific learning scenarios, though. This article introduces a mobile campus app framework, which integrates central campus services and decentralized learning applications. An analysis of strengths and weaknesses of different approaches is presented to summarize and evaluate them in terms of requirements, development, maintenance and operation. The article discusses the underlying service-oriented architecture that allows transferring the campus app to other universities or institutions at reasonable cost. It concludes with a presentation of the results as well as ongoing discussions and future work},
  language  = {en}
}