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Constance University of Applied Sciences, Germany
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22 Papers

A Framework Supporting Literacy in Mathematics and Software Programming - Addressing Some Challenges in STEM Education

Topic: e-Learning and e-Teaching

Authors: Georg Peters 1 , Tom Rueckert 2 and Jan Seruga 3

Affiliations: 1 Munich University of Applied Sciences and Australian Catholic University, Germany , 2 Munich University of Applied Sciences, Germany , 3 Australian Catholic University, Australia

Digital Object Identifier: 10.5220/0006629304970506

Proceedings of ICEIS 2018, ISBN: 978-989-758-298-1

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The second half of the last century was characterised by a shift from manufacturing to services, particularly in mature economies. This transformation has accelerated in the past decade, due to rapid progress in information technology. Excellence in the so-called STEM subjects (science, technology, engineering and mathematics) is crucial if countries are to remain competitive. Mathematics as a universally applicable method is of special significance, as is IT, which impacts on virtually all industries and can dramatically change economies. Literacy in mathematics and computers, therefore, is more important than ever for individuals, companies and countries. We propose a framework based on R to support the training of students in these crucial areas. We discuss its features, including platform neutrality, costs and specialization flexibility in our paper.
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Computer-Supported Education

e-Learning and e-Teaching

Software Agents and Internet Computing
e-Learning

Enterprise Information Systems

Mixed Reality Experience - How to Use a Virtual (TV) Studio for Demonstration of Virtual Reality Applications

Topics: Real-Time Rendering; Systems and Software Architectures for Rendering; Augmented, Mixed and Virtual Environments; Hardware Technologies for Augmented, Mixed and Virtual Environments; Real-Time Graphics

Authors: Jens Herder 1 , Philipp Ladwig 1 , Kai Vermeegen 1 , Dennis Hergert 1 , Florian Busch 1 , Kevin Klever 1 , Sebastian Holthausen 1 and Bektur Ryskeldiev 2

Affiliations: 1 Hochschule Düsseldorf and University of Applied Sciences, Germany , 2 University of Aizu, Japan

Digital Object Identifier: 10.5220/0006637502810287

Proceedings of GRAPP 2018, ISBN: 978-989-758-287-5

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The article discusses the question of “How to convey the experience in a virtual environment to third parties?” and explains the different technical implementations which can be used for live streaming and recording of a mixed reality experience. The real-world applications of our approach include education, entertainment, e-sports, tutorials, and cinematic trailers, which can benefit from our research by finding a suitable solution for their needs. We explain and outline our Mixed Reality systems as well as discuss the experience of recorded demonstrations of different VR applications, including the need for calibrated camera lens parameters based on realtime encoder values.
Collapse Button Related Ontology Subjects/Areas/Topics (8)
Augmented, Mixed and Virtual Environments

Interactive Environments

Rendering

Computer Vision, Visualization and Computer Graphics

Real-Time Graphics

Systems and Software Architectures for Rendering
Hardware Technologies for Augmented, Mixed and Virtual Environments

Real-Time Rendering

Streamlining Extraction and Analysis of Android RAM Images

Topics: Malware Detection; Mobile Systems Security

Authors: Simon Broenner , Hans Höfken and Marko Schuba

Affiliation: Aachen University of Applied Sciences, Germany

Digital Object Identifier: 10.5220/0005652802550264

Proceedings of ICISSP 2016, ISBN: 978-989-758-167-0

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The Android operating system powers the majority of the world’s mobile devices and has been becoming increasingly important in day-to-day digital forensics. Therefore, technicians and analysts are in need of reliable methods for extracting and analyzing memory images from live Android systems. This paper takes different existing, extraction methods and derives a universal, reproducible, reliably documented method for both extraction and analysis. In addition the VOLIX II front-end for the Volatility Framework is extended with additional functionality to make the analysis of Android memory images easier for technically non-adept users.

Using Gamification to Enhance User Motivation in an Online-coaching Application for Flexible Workers

Topics: Usability and Ergonomics; Human Factors and Social Issues; Design of Web Interface

Authors: Sophie Jent and Monique Janneck

Affiliation: University of Applied Sciences, Germany

Digital Object Identifier: 10.5220/0005898400350041

Proceedings of WEBIST 2016, ISBN: 978-989-758-186-1

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The number of people who are solo-self-employed or experience very flexible, individualized working conditions has grown over the last years. As a consequence, these persons need to design their own working conditions in the sense of ‘job crafting’. We are developing an online coaching application for this target group to convey job design skills, increase well-being, and reduce stress. To enhance user motivation gamification elements are used in the online coach. In this paper we report on the evaluation of a prototype of the coaching application with different gamification elements by means of a user test with the target group. The results show that gamification has only a small effect in short-term use, but seems promising in the long term.
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Usability and Ergonomics

Web Information Systems and Technologies

Web Interfaces and Applications

Facebook@Work - The Use of Social Media for Work-related Exchange and Support

Authors: Monique Janneck 1 , Marcus Kluetmann 1 , Sophie Jent 1 and Henning Staar 2

Affiliations: 1 University of Applied Sciences, Germany , 2 Business and Information Technology School, Germany

Digital Object Identifier: 10.5220/0005526206550661

Proceedings of STDIS 2015/WEBIST, ISBN: 978-989-758-106-9

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Research on informal Social Networks such as Facebook has so far mainly focused on participants’ private exchange, addressing topics like self-disclosure, self-presentation, privacy issues and so on. However, informal Social Networks, despite their more private nature, might also be used for work-related exchange and private support for workplace challenges and problems. In this paper we investigate to what extent informal Social Networks are used for work-related exchange and whether this is related to forms of social support the participants experience. To that end an online survey was conducted among users of Facebook. Results show that while work-related Facebook use is generally low, there is some potential to use Social Networks as a vehicle to build a strong support network for seeking of valuable information and advice to cope with possible work-related challenges, especially as participants showed a high willingness to extend help and support to other users.

ICS/SCADA Security - Analysis of a Beckhoff CX5020 PLC

Topics: Vulnerability Analysis and Countermeasures; Security and Privacy

Authors: Gregor Bonney , Hans Hoefken , Benedikt Paffen and Marko Schuba

Affiliation: University of Applied Sciences, Germany

Digital Object Identifier: 10.5220/0005330101370142

Proceedings of ICISSP 2015, ISBN: 978-989-758-081-9

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A secure and reliable critical infrastructure is a concern of industry and governments. SCADA systems (Supervisory Control and Data Acquisition) are a subgroup of ICS (Industrial Control Systems) and known to be well interconnected with other networks. It is not uncommon to use public networks as transport route but a rising number of incidents of industrial control systems shows the danger of excessive crosslinking. Beckhoff Automation GmbH is a German automation manufacturer that did not have bad press so far. The Beckhoff CX5020 is a typical PLC (Programmable Logic Controller) that is used in today’s SCADA systems. It is cross-linked through Ethernet and running a customized Windows CE 6.0, therefore the CX5020 is a good representative for modern PLCs which have emerged within the last years that use de facto standard operation systems and open standard communication protocols. This paper presents vulnerabilities of Beckhoff’s CX5020 PLC and shows ways to achieve rights to control the PLC program and the operation system itself. These vulnerabilities do not need in-depth knowledge of penetration testing, they demonstrate that switching to standard platforms brings hidden features and encapsulating SCADA protocols into TCP/IP might not always be a good idea – underlining that securing ICS systems is still a challenging topic.
Collapse Button Related Ontology Subjects/Areas/Topics (10)
Communication and Software Technologies and Architectures

Enterprise Information Systems

Security and Privacy

Computer-Supported Education

Information Technologies Supporting Learning

Sustainable Computing and Communications

e-Business

Mobile and Pervasive Computing

Telecommunications
Energy and Economy

Investigating User Response to a Hybrid Sketch Based Interface for Creating 3D Virtual Models in an Immersive Environment

Topics: Augmented, Mixed and Virtual Environments; Sketch-Based Modeling; Advanced User Interfaces; Interactive 3D Graphics and Immersive Systems for Servers, Desktop and Thin Clients; Sketch-Based Interfaces

Authors: Alexandra Bonnici 1 , Johann Habakuk Israel 2 , Anne Marie Muscat 1 , Daniel Camilleri 1 , Kenneth Camilleri 1 and Uwe Rothenburg 3

Affiliations: 1 University of Malta, Malta , 2 University of Applied Sciences, Germany , 3 Fraunhofer Institute for Production Systems and Design Technology IPK, Germany

Digital Object Identifier: 10.5220/0005320504700477

Proceedings of GRAPP 2015/VISIGRAPP, ISBN: 978-989-758-087-1

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Computer modelling of 2D drawings is becoming increasingly popular in modern design as can be witnessed in the shift of modern computer modelling applications from software requiring specialised training to ones targeted for the general consumer market. Despite this, traditional sketching is still prevalent in design, particularly so in the early design stages. Thus, research trends in computer-aided modelling focus on the the development of sketch based interfaces that are as natural as possible. In this paper, we present a hybrid sketch based interface which allows the user to make draw sketches using offline as well as online sketching modalities, displaying the 3D models in an immersive setup, thus linking the object interaction possible through immersive modelling to the flexibility allowed by paper-based sketching. The interface was evaluated in a user study which shows that such a hybrid system can be considered as having pragmatic and hedonic value.
Collapse Button Related Ontology Subjects/Areas/Topics (8)
Advanced User Interfaces

Geometry and Modeling

Sketch-Based Interfaces

Augmented, Mixed and Virtual Environments

Interactive 3D Graphics and Immersive Systems for Servers, Desktop and Thin Clients

Sketch-Based Modeling
Computer Vision, Visualization and Computer Graphics

Interactive Environments

Multimodal Interaction Techniques in Scientific Data Visualization - An Analytical Survey

Topics: Advanced User Interfaces; Graphical Interfaces; Evaluation of Human Performance and Usability in Virtual Environments

Authors: Jannik Fiedler 1 , Stefan Rilling 2 , Manfred Bogen 2 and Jens Herder 3

Affiliations: 1 Fraunhofer IAIS and University of Applied Sciences, Germany , 2 Fraunhofer IAIS, Germany , 3 University of Applied Sciences, Germany

Digital Object Identifier: 10.5220/0005296404310437

Proceedings of GRAPP 2015/VISIGRAPP, ISBN: 978-989-758-087-1

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The interpretation process of complex data sets makes the integration of effective interaction techniques crucial. Recent work in the field of human–computer interaction has shown that there is strong evidence that multimodal user interaction, i.e. the integration of various input modalities and interaction techniques into one comprehensive user interface, can improve human performance when interacting with complex data sets. However, it is still unclear which factors make these user interfaces superior to unimodal user interfaces. The contribution of this work is an analytical comparison of a multimodal and a unimodal user interface for a scientific visualization application. We show that multimodal user interaction with simultaneously integrated speech and gesture input improves user performance regarding efficiency and ease of use.
Collapse Button Related Ontology Subjects/Areas/Topics (5)
Advanced User Interfaces

Evaluation of Human Performance and Usability in Virtual Environments

Interactive Environments
Computer Vision, Visualization and Computer Graphics

Graphical Interfaces

Political Skills 2.0 - An Analysis of Success-oriented Strategic Behavior in Online Business Networks

Authors: Henning Staar 1 , Pia Keysers 1 , Fabian Storch 1 , Christian Kempny 1 and Monique Janneck 2

Affiliations: 1 BiTS Business and Information Technology School, Germany , 2 University of Applied Sciences Luebeck, Germany

Digital Object Identifier: 10.5220/0005530006700676

Proceedings of STDIS 2015/WEBIST, ISBN: 978-989-758-106-9

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This study investigated media competencies and political skills of users of a Business Network–namely XING–and their relation with successful use of the online platform by means of an online survey (N=182). Subjective as well as objective criteria for professional success were used. Results show that besides general media competencies, individual abilities to exert social influence are highly relevant to take advantage of Social Networks: Participants with both high media competencies and political skills enjoyed more opportunities for personal training and development and received more business offers.

Optimization of Endoscopic Video Stabilization by Local Motion Exclusion

Topics: Segmentation and Grouping; Optical Flow and Motion Analyses; Medical Image Applications; Video Stabilization

Authors: Thomas Gross , Navya Amin , Marvin C. Offiah , Susanne Rosenthal , Nail El-Sourani and Markus Borschbach

Affiliation: University of Applied Sciences (FHDW), Germany

Digital Object Identifier: 10.5220/0004745900640072

Proceedings of VISAPP 2014/VISIGRAPP, ISBN: 978-989-758-009-3

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Hitherto video stabilization algorithms for different types of videos have been proposed. Our work majorly focuses on developing stabilization algorithms for endoscopic videos which include distortions peculiar to endoscopy. In this paper, we deal with the optimization of the motion detection procedure which is the most important step in the development of a video stabilization algorithm. It presents a robust motion estimation procedure to enhance the quality of the outcome. The outcome of the later steps in the stabilization, namely motion compensation and image composition depend on the level of precision of the motion estimation step. The results of a previous version of the stabilization algorithm are here compared to a new optimized version. Furthermore, the improvements of the outcomes using the video quality estimation methods are also discussed.
Collapse Button Related Ontology Subjects/Areas/Topics (8)
Applications and Services

Medical Image Applications

Segmentation and Grouping

Computer Vision, Visualization and Computer Graphics

Motion, Tracking and Stereo Vision

Video Stabilization
Image and Video Analysis

Optical Flow and Motion Analyses

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