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Die fortschreitende Globalisierung bedingt auch immer mehr international personalwirtschaftliche Aufgaben, die im Gegensatz zur gewohnten Unternehmensführung im Heimatland in einem viel komplexeren Kontext stattfinden, oft mit relativ unbekannten oder unsicheren Umweltentwicklungen bis hin zu teilweise gegensätzliche Entwicklungen in den einzelnen Kulturen. Die Beschäftigung von ausländischen Mitarbeitern oder die Auslandsentsendung von Mitarbeitern führt in allen Personalmanagementfunktionen zu Herausforderungen, z. B. Personalplanung der länderspezifischen Bedingungen und Anforderungen, Personalsuche und -auswahl ausländischer Fach- und Führungskräfte, Weiterbildung zur interkulturellen Vorbereitung auf Auslandsaufenthalte und Personalentwicklungsplanung für internationale Karrieren, Personalorganisation und Personalabrechnung der Entsendung ins Ausland der Mitarbeiter und ihrer Familien, Fragen der Personalführung in interkulturellen Teams oder die Zusammenarbeit mit internationalen Arbeitnehmervertretungen. Dadurch entstehen mehr länder- und kulturspezifische Personalfunktionen und -aufgaben, breitere Perspektiven durch zusätzliche Mitarbeitergruppen wie entsandte Expatriates, die mitreisende Familie, Local staff und interkulturelle Teams, sowie komplexe Risken durch durchschnittlich weltweit 3-fach höhere Personalkosten sowie Entsendungsabbrüche.
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.
Vom deutschen Hochschulbetrieb nur teilweise bemerkt, ist das Übereinkommen über die Anerkennung von Qualifikationen im Hochschulbereich in der europäischen Region von 1997 (sog. Lissabon-Konvention) in Deutschland 2007 in Kraft getreten. Die Konvention – entstanden auf Initiative des Europarats und der UNESCO – ist ein völkerrechtlicher Vertrag, der mittlerweile von über 50 Staaten ratifiziert wurde. Er regelt die Anerkennung von im Ausland erworbenen Hochschulqualifikationen und absolvierten Studienzeiten.
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.
Wirtschaft und Entwicklung: Die Bedeutung der Privatwirtschaft in der Entwicklungszusammenarbeit
(2013)
This work extends the affordance-inspired robot control architecture introduced in the MACS project [35] and especially its approach to integrate symbolic planning systems given in [24] by providing methods to automated abstraction of affordances to high-level operators. It discusses how symbolic planning instances can be generated automatically based on these operators and introduces an instantiation method to execute the resulting plans. Preconditions and effects of agent behaviour are learned and represented in Gärdenfors conceptual spaces framework. Its notion of similarity is used to group behaviours to abstract operators based on the affordance-inspired, function-centred view on the environment. Ways on how the capabilities of conceptual spaces to map subsymbolic to symbolic representations to generate PDDL planning domains including affordance-based operators are discussed. During plan execution, affordance-based operators are instantiated by agent behaviour based on the situation directly before its execution. The current situation is compared to past ones and the behaviour that has been most successful in the past is applied. Execution failures can be repaired by action substitution. The concept of using contexts to dynamically change dimension salience as introduced by Gärdenfors is realized by using techniques from the field of feature selection. The approach is evaluated using a 3D simulation environment and implementations of several object manipulation behaviours.
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.