Refine
Departments, institutes and facilities
- Fachbereich Informatik (32)
- Fachbereich Ingenieurwissenschaften und Kommunikation (16)
- Institute of Visual Computing (IVC) (16)
- Institut für Cyber Security & Privacy (ICSP) (10)
- Institut für Verbraucherinformatik (IVI) (6)
- Institut für Technik, Ressourcenschonung und Energieeffizienz (TREE) (3)
- Fachbereich Wirtschaftswissenschaften (2)
- Fachbereich Angewandte Naturwissenschaften (1)
- Sprachenzentrum (1)
Document Type
- Conference Object (71) (remove)
Year of publication
- 2013 (71) (remove)
Keywords
- Education (2)
- Three-dimensional displays (2)
- end user development (2)
- 3D user interface (1)
- ARRs (1)
- Accessibility (1)
- Appropriateness (1)
- Cloud (1)
- Cognitive processing (1)
- Component Models (1)
- Constructionism (1)
- Cryptography (1)
- Current measurement (1)
- Datalog (1)
- E-Learning (1)
- Educational Standards (1)
- Educational institutions (1)
- Engine Map (1)
- Evaluation board (1)
- FDI (1)
- Fuel Consumption (1)
- Grailog (1)
- Human-Robot Interaction (1)
- Hybrid (1)
- ICE (1)
- IEEE 802.21 (1)
- Inclusion (1)
- Information Systems (1)
- Instrumented indentation experiments (1)
- Internet (1)
- Interoperability (1)
- JavaScript (1)
- Laboratories (1)
- Learning Context (1)
- Learning Environments (1)
- Living Labs (1)
- MPLS (1)
- Machine Learning (1)
- Malware analysis (1)
- Neuroscience (1)
- OER (1)
- Open Educational Resources (1)
- People Detection (1)
- Power Analysis (1)
- Power dissipation (1)
- Power measurement (1)
- Power train map (1)
- Programming (1)
- Pulsars (1)
- QoS (1)
- RGB-D (1)
- Reusable Software (1)
- Robot kinematics (1)
- Robot sensing systems (1)
- Robotics (1)
- RuleML (1)
- SOA (1)
- SOAP (1)
- SVG (1)
- Scene text recognition, active vision, domestic robot, pantilt, auto-zoom, auto-focus, adaptive aperture control (1)
- Second Life (1)
- Security Approaches (1)
- Semantics (1)
- Sgr A⋆ (1)
- Smart Home (1)
- Social Media (1)
- Social learning (1)
- Software Architectures (1)
- Standardization (1)
- Standards (1)
- Support Vector Machine (1)
- Switched power electronic systems (1)
- Switches (1)
- Tactical Wireless Multi-hop Networks (1)
- Technology Enhanced Learning (1)
- Template Attacks (1)
- Transforms (1)
- Uncertainty (1)
- Visualization (1)
- WS-Security (1)
- Wireless Backhaul Network (1)
- Workflow (1)
- XML (1)
- XML Signature (1)
- XML Signature Wrapping (1)
- XNA Game Studio (1)
- XSLT (1)
- XSpRES (1)
- atomic instructions (1)
- carbon footprint (1)
- computational logic (1)
- cooperation (1)
- culture of participation (1)
- design case study (1)
- digital fabrication (1)
- directed hypergraphs (1)
- education (1)
- efficiency (1)
- electrical devices (1)
- electrical engineering education (1)
- embroidery machine (1)
- energy monitoring (1)
- energy saving (1)
- engineering (1)
- evaluation board development (1)
- field programmable gate arrays (1)
- full-body interface (1)
- graphs (1)
- hands-on labs (1)
- hardware engineering (1)
- human factors (1)
- interactive distributed rendering (1)
- intercultural comparisons (1)
- interface design (1)
- inverse parameter identification (1)
- language teaching (1)
- link calibration (1)
- local material properties (1)
- maker communities (1)
- mathematics (1)
- microcontroller (1)
- microcontroller education (1)
- microcontrollers (1)
- modelling (1)
- multi-screen visualization environments (1)
- multiple Xbox 360 (1)
- multiple computer systems (1)
- multisensor data fusion (1)
- multisensory interface (1)
- online collaboration (1)
- parallel BFS (1)
- programming (1)
- project management (1)
- prosumption (1)
- redundant work (1)
- rules (1)
- security (1)
- self-configuration (1)
- self-management (1)
- smart meter (1)
- social modelling (1)
- software engineering (1)
- speaking (1)
- sustainability (1)
- unique bond graph representation for all modes of operation (1)
- usability (1)
- virtual environments (1)
- web services (1)
- writing (1)
One idea behind Open Educational Resources (OERs) is opening up the access to learning resources for stakeholders who were not the originally targeted users. Even though making educational resources available for the public already is a remarkable achievement, their usefulness often is limited to a very particular context because of unclear or missing appropriateness regarding other contexts. In this paper, contextual appropriateness is investigated as a special quality criterion for OERs. We will introduce barriers against the use of OERs and demands from the educational community that need to be addressed in order to overcome such barriers. We will show that the hitherto implemented quality standards for Technology Enhanced Learning do not yet fully support such particular demands and discuss which additional steps are required for the context of OERs. We conclude with an outlook and recommendations that can open up the full potential of OERs.
Open Discovery Space
(2013)
The aim of our research is preserving the learners’ initial motivation in educational settings by avoiding unnecessary conflicts that could decrease the learners’ joy of learning. In order to get a better understanding of particularly cul-ture-related factors that could jeopardize the learners’ motivation in international e-Learning scenarios, we devel-oped and exemplarily implemented the standardized questionnaire ‘Learning Culture’ in the Higher Education contexts of Germany and South Korea. Regarding motivation, we analysed how the students evaluated their own motivational predispositions towards outer influences, their purpose of learning and affections towards particular knowledge, and their strategies to deal with educational tasks that appear unmanageable or too difficult for them.
Grailog embodies a systematics to visualize knowledge sources by graphical elements. Its main benefit is that the resulting visual presentations are easier to read for humans than the original symbolic source code. In this paper we introduce a methodology to handle the mapping from Datalog RuleML, serialized in XML, to an SVG representation of Grailog, also serialized in XML, via eXtensible Stylesheet Language Transformations (XSLT) 2.0/XML; the SVG is then rendered visually by modern Web browsers. This initial mapping is realized to target Grailog's "fully node copied" normal form. Elements can thus be translated one at a time, separating the fundamental Datalog-to-SVG translation concern from the concern of merging node copies for optimal (hyper)graph layout and avoiding its high computational complexity in this online tool. The resulting open source Grailog Knowledge-Source Visualizer (Grailog KS Viz) supports Datalog RuleML with positional relations of arity n>1. The on-the-fly transformation was shown to run on all recent major Web browsers and should be easy to understand, use, and extend.
Power train models are required to simulate hence predict energy consumption of vehicles. Efficiencies for different components in power train are required. Common procedures use digitalised shell models (or maps) to model the efficiency of Internal Combustion Engines (ICE) and manual gearboxes (MG). Errors are connected with these models and affect the accuracy of the calculation. The accuracy depends on the configuration of the simulation, the digitalisation of the data and the data used. This paper evaluates these sources of error. The understanding of the source of error can improve the results of the modelling by more than eight percent.
In Software development, the always beta principle is used to successfully develop innovation based on early and continuous user feedback. In this paper we discuss how this principle could be adapted to the special needs of designing for the Smart Home, where we do not just take care of the software, but also release hardware components. In particular, because of the 'materiality' of the Smart Home one could not just make a beta version available on the web, but an essential part of the development process is also to visit the 'beta' users in their home, to build trust, to face the real world issues and provide assistance to make the Smart Home work for them. After presenting our case study, we will then discuss the challenges we faced and how we dealt with them.
Embodied artificial agents operating in dynamic, real-world environments need architectures that support the special requirements that exist for them. Architectures are not always designed from scratch and the system then implemented all at once, but rather, a step-wise integration of components is often made to increase functionality. Our work aims to increase flexibility and robustness by integrating a task planner into an existing architecture and coupling the planning process with the preexisting execution and the basic monitoring processes. This involved the conversion of monolithic SMACH scenario scripts (state-machine execution scripts) into modular states that can be called dynamically based on the plan that was generated by the planning process. The procedural knowledge encoded in such state machines was used to model the planning domain for two RoboCup@Home scenarios on a Care-O-Bot 3 robot [GRH+08]. This was done for the JSHOP2 [IN03] hierarchical task network (HTN) planner. A component which iterates through a generated plan and calls the appropriate SMACH states [Fie11] was implemented, thus enabling the scenarios. Crucially, individual monitoring actions which enable the robot to monitor the execution of the actions were designed and included, thus providing additional robustness.
Switched power electronic subsystems are widely used in various applications. A fault in one of their components may have a significant effect on the system’s load or may even cause a damage. Therefore, it is important to detect and isolate faults and to report true faults to a supervisory system in order to avoid malfunction of or damage to a load. If, in a model-based approach to fault detection and isolation of hybrid systems, switching devices are considered as ideal switches then some equations must be reformulated whenever some devices have switched. In this paper, a fixed causality bond graph representation of hybrid system models is used, i.e., computational causalities assigned according to the Standard Causality Assignment Procedure (SCAP) are independent of system modes of operation. The latter are taken into account by transformer moduli mi(t) ∈ {0, 1} ∀t ≥ 0 in a unique set of equations of motion. In a case study, this approach is used for fault diagnosis in a three-phase full-wave rectifier. Residuals of Analytical Redundancy Relations (ARRs) holding for all modes of operations and serving as fault indicators are computed in an offline simulation as part of a DAE system by using a bond graph model of the faulty system instead of the real one and by coupling it to a bond graph of the healthy system by means of residual sinks.
Web-based Editor for YAWL
(2013)
This paper presents a web-based editor that offers YAWL editing capabilities and comprehensive support for the XML format of YAWL. The open-source project Signavio Core Components is extended with a graphical user interface (GUI) for parts of the YAWL Language, and an import-/export component that converts between YAWL and the internal format of Signavio Core Components. This conversion, between the web-based editor and the offcial YAWL Editor, is lossless so both tools may be used together. Compared to the offcial YAWL Editor, the web-based editor is missing some features, but could still facilitate the usage of the YAWL system in use cases that are not supported by a desktop application.