Konstantinos Dermitzakis, Alejandro Hernandez Arieta, Gesture recognition for controlling dexterous upper-limb prostheses, In: International Neurorehabilitation Symposium (INRS '11). 2011. (Conference Presentation)
|
|
Helmut Max Dietl, Die Bilanzen versichern statt prüfen, cash zweiplus ag, cash.ch, http://www.cash.ch/news/kolumne/die_bilanzen_versichern_statt_pruefen-1049496-567, 2011-06-27. (Scientific Publication In Electronic Form)
|
|
Robertas Zubrickas, Managerial accountability for payroll expense and firm-size wage effects, In: 11th SAET Conference, 2011-06-26. (Conference or Workshop Paper published in Proceedings)
We argue that job performance appraisal is an agency problem with asymmetric transfer values: an employee is paid in proportion to the rating received from his line manager, who only partially internalizes the resultant payroll cost. This asymmetry in rating valuations is based on evidence that managers are not fully accountable for payroll expense, with the degree of unaccountability increasing in firm size. We develop a nested agency model of economic organization of a firm with unaccountable managers, which in equilibrium obtains the firm-size wage effects - the large-firm wage premium and inverse relationship between firm size and wage dispersion. |
|
Marco Piccirelli, L Kasper, Klaas Enno Stephan, Sequence Optimization for Brainstem BOLD fMRI., In: Annual Meeting of the Organization for Human Brain Mapping, 2011. (Conference or Workshop Paper published in Proceedings)
|
|
Mathias Beck, How to manage complex systems: new qualitative methods., In: The Eighth International Conference on Complex Systems (ICCS 2011). 2011. (Conference Presentation)
In our modern world we are facing an increasing complexity which creates higher risks as well as new interdependencies in the socioeconomic environment. Linear models tend to fail when dealing with complex real-world problems. System dynamics may deliver new tools to find sustainable solutions to these problems. However, these tools have some limitations. While the quantitative methods are sometimes too complex, the qualitative have limited
capacities for detailed analysis. This is especially true with regard to the time dimension.
Therefore, we developed a series of analytical tools including a Cross-Time Matrix to address
this gap. Decision makers in business and politics can easily apply our tools. Based on the
Cross-Time Matrix and combined with the Impact Matrix, one can determine whether a variable is suited for intervention or one can calculate how long it will take until an impulse from one variable in the system arrives at another. For our calculations we used an adapted version of the Floyd-Warshall algorithm. |
|
Sandro Kürschner, Corporate Entrepreneurship and Management Control Systems, In: Empirical Research in Management Accounting & Control. 2011. (Conference Presentation)
The research proposals identifies an existing research gap on the interface between research in management control and corporate entrepreneurship as strategic organizational attribute. Though some studies suggest that the risk taking subdimension inherent in corporate entrepreneurship positively influences control comprehensiveness, no study exists testing that assumption. The research proposal reviews previous literature and develops a corresponding research question. The structure of some hypotheses is drafted while the hypotheses’ body is reserved for a later working paper. Due to lack of available data answering the research questions requires an own empirical study. |
|
Pamela Bethke-Langenegger, Frauen erhöhen die kollektive Intelligenz, In: NZZ, 146, p. 73, 25 June 2011. (Newspaper Article)
|
|
Thorsten Hens, The effect of experience sampling on the attractiveness of structured products, In: Research Seminar, Simon Fraser University. 2011. (Conference Presentation)
|
|
Silvia Teuber, Uschi Backes-Gellner, P Ryan, K Wagner, Mobility and Internal Labor Markets in a Comparison of Matched-pair Engineering Companies in the U.S., Japan, Germany, and Switzerland, In: Society for the Advancement of Socio Economics. 2011. (Conference Presentation)
|
|
Vitalie Stancov, Simon Janssen, Uschi Backes-Gellner, Simone Tuor Sartore, The gender pay gap and performance pay: Is there room for discrimination?, In: Society for the Advancement of Socio Economics, 2011-06-23. (Conference or Workshop Paper)
Although discrimination is the most prominent explanation for the gender pay gap, studies providing conclusive evidence are scarce. This paper examines whether discrimination is less severe under performance pay than under time-based pay. To identify an external and measurable source of discrimination we exploit the variation of social norms regarding equal pay for equal work across different regions. We hypothesize the influence of social norms to be smaller in performance than time-based pay because performance pay is more closely tied to workers' productivity and thus employers have less scope for discrimination. Our empirical results show a strong and significant effect of social norms for the time-based component of pay, whereas we cannot identify such an effect for the performance-based component of pay. Therefore, our paper provides a direct proof that discrimination is less severe under performance than time-based pay. |
|
Uschi Backes-Gellner, Christian Rupietta, Simone Tuor Sartore, Educational Spillovers at the Firm-Level: Separating Type and Level of Education, In: Society for the Advancement of Socio Economics. 2011. (Conference Presentation)
|
|
Uschi Backes-Gellner, Yvonne Oswald, Simone Tuor Sartore, Part-Time Work and Employer-Provided Training: Boon to Women and Bane to Men?, In: Society for the Advancement of Socio Economics (SASE). 2011. (Conference Presentation)
|
|
Anne Koziolek, Ralf Reussner, Towards a generic quality optimisation framework for component-based system models, In: 14th international ACM Sigsoft symposium on Component based software engineering, Association for Computing Machinery, New York, NY, USA, 2011-06-21. (Conference or Workshop Paper published in Proceedings)
Designing component-based systems (CBS) that exhibit a good trade-off between multiple quality criteria is hard. Even after functional design, many remaining degrees of freedom of different types (e.g.\ component allocation, component selection, server configuration) in the CBS span a large, discontinuous design space. Automated approaches have been proposed to optimise CBS models, but they only consider a limited set of degrees of freedom, e.g.\ they only optimise the selection of components without considering the allocation, or vice versa. We propose a flexible and extensible formulation of the design space for optimising any CBS model for a number of quality properties and an arbitrary number of degrees of freedom. With this design space formulation, a generic quality optimisation framework that is independent of the used CBS metamodel can apply multi-objective metaheuristic optimisation such as evolutionary algorithms. |
|
Kohei Nakajima, Naveen Suresh Kuppuswamy, Rolf Pfeifer, Harnessing the dynamics of a soft body with "timing": Octopus-inspired control via recurrent neural networks, In: 15th Int. Conference on Advaned Robotics, ICAR-2011, virtual, 2011. (Conference or Workshop Paper)
|
|
Anne Koziolek, Heiko Koziolek, Ralf Reussner, PerOpteryx: automated application of tactics in multi-objective software architecture optimization, In: ACM SIGSOFT conference -- QoSA and ACM SIGSOFT symposium -- ISARCS on Quality of software architectures -- QoSA and architecting critical systems -- ISARCS, Association for Computing Machinery, New York, NY, USA, 2011-06-20. (Conference or Workshop Paper published in Proceedings)
Designing software architectures that exhibit a good trade-off between multiple quality attributes is hard. Even with a given functional design, many degrees of freedom in the software architecture (e.g. component deployment or server configuration) span a large design space. In current practice, software architects try to find good solutions manually, which is time-consuming, can be error-prone and can lead to suboptimal designs.We propose an automated approach guided by architectural tactics to search the design space for good solutions. Our approach applies multi-objective evolutionary optimization to software architectures modelled with the Palladio Component Model. Software architects can then make well-informed trade-off decisions and choose the best architecture for their situation.To validate our approach, we applied it to the architecture models of two systems, a business reporting system and an industrial control system from ABB. The approach was able to find meaningful trade-offs leading to significant performance improvements or costs savings. The novel use of tactics decreased the time needed to find good solutions by up to 80\%. |
|
Markus Nöbauer, Norbert Seyff, Neil Maiden, Konstantinos Zachos, S3C: Using service discovery to support requirements elicitation in the ERP domain, In: CAiSE 2011, Springer, London, 2011-06-20. (Conference or Workshop Paper published in Proceedings)
Requirements Elicitation and Fit-Gap Analysis are amongst the most time and effort-consuming tasks in an ERP project. There is a potentially high rate of reuse in ERP projects as solutions are mainly based on standard software components and services. However, the consultants’ ability to identify relevant components for reuse is affected by the increasing number of services available to them. The work described in this experience paper focuses on providing support for consultants to identify existing solutions informing system design. We report the development of a tool-supported approach called S3C, based on Microsoft Sure Step methodology and SeCSE open source service discovery tools. The S3C approach is tailored to the needs of SME companies in the ERP domain and overcomes limitations of Sure Step. The initial application and evaluation of the S3C approach also allows presenting lessons learned. |
|
Kohei Nakajima, Tao Li, Naveen Kuppuswamy, Rolf Pfeifer, Harnessing the dynamics of a soft body with "Timing": Octopus inspired control via recurrent neural networks, In: 15th International Conference on Advanced Robotics (ICAR), IEEE, IEEE Xplore, 2011-06-20. (Conference or Workshop Paper published in Proceedings)
This study aims to explore a control architecture that enables the control of a soft and flexible octopus-like arm for an object reaching task. Inspired by the division of functionality between the central and peripheral nervous systems of a real octopus, we discuss that the important factor of the control is not to regulate the arm muscles one by one but rather to control them globally with appropriate timing, and we propose an architecture equipped with a recurrent neural network (RNN). By setting the task environment for the reaching behavior, and training the network with an incremental learning strategy, we evaluate whether the network is then able to achieve the reaching behavior or not. As a result, we show that the RNN can successfully achieve the reaching behavior, exploiting the physical dynamics of the arm due to the timing based control. |
|
Giacomo Ghezzi, Harald C Gall, SOFAS: A lightweight architecture for software analysis as a service, In: 9th Working IEEE/IFIP Conference on Software Architecture, IEEE Computer Society, Boulder, Colorado, USA, 2011-06-20. (Conference or Workshop Paper published in Proceedings)
Access to data stored in software repositories by systems such as version control, bug and issue tracking, or mailing lists is essential for assessing the quality of a software system. A myriad of analyses exploiting that data have been proposed throughout the years: source code analysis, code duplication analysis, co-change analysis, bug prediction, or detection of bug fixing patterns. However, easy and straight forward synergies between these analyses rarely exist. To tackle this problem we have developed SOFAS, a distributed and collaborative software analysis platform to enable a seamless interoperation of such analyses. In particular, software analyses are offered as RESTful web services that can be accessed and composed over the Internet. SOFAS services are accessible through a software analysis catalog where any project stakeholder can, depending on the needs or interests, pick specific analyses, combine them, let them run remotely and then fetch the final results. That way, software developers, testers, architects, or quality assurance experts are given access to quality analysis services. They are shielded from many peculiarities of tool installations and configurations, but SOFAS offers them sophisticated and easy-to-use analyses. This paper describes in detail our SOFAS architecture, its considerations and implementation aspects, and the current set of implemented and offered RESTful analysis services. |
|
Philippe Mahler, Fehler machen muss zulässig sein, In: NZZ, 140, p. 73, 18 June 2011. (Newspaper Article)
|
|
Guilherme Sperb Machado, SLACC: SLA Support System for Cloud Computing, In: AIMS 2011. 2011. (Conference Presentation)
|
|