10,681 research outputs found

    Towards adaptive multi-robot systems: self-organization and self-adaptation

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    Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugÀnglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.The development of complex systems ensembles that operate in uncertain environments is a major challenge. The reason for this is that system designers are not able to fully specify the system during specification and development and before it is being deployed. Natural swarm systems enjoy similar characteristics, yet, being self-adaptive and being able to self-organize, these systems show beneficial emergent behaviour. Similar concepts can be extremely helpful for artificial systems, especially when it comes to multi-robot scenarios, which require such solution in order to be applicable to highly uncertain real world application. In this article, we present a comprehensive overview over state-of-the-art solutions in emergent systems, self-organization, self-adaptation, and robotics. We discuss these approaches in the light of a framework for multi-robot systems and identify similarities, differences missing links and open gaps that have to be addressed in order to make this framework possible

    Ability-Based Design: Concept, Principles and Examples

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    Current approaches to accessible computing share a common goal of making technology accessible to users with disabilities. Perhaps because of this goal, they may also share a tendency to centralize disability rather than ability. We present a refinement to these approaches called ability-based design that consists of focusing on ability throughout the design process in an effort to create systems that leverage the full range of human potential. Just as user-centered design shifted the focus of interactive system design from systems to users, ability-based design attempts to shift the focus of accessible design from disability to ability. Although prior approaches to accessible computing may consider users’ abilities to some extent, ability-based design makes ability its central focus. We offer seven ability-based design principles and describe the projects that inspired their formulation. We also present a research agenda for ability-based design.Engineering and Applied Science

    Enabling adaptability in web forms based on user characteristics detection through A/B testing and machine learning

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    [EN] This paper presents an original study with the aim of improving users' performance in completing large questionnaires through adaptability in web forms. Such adaptability is based on the application of machine-learning procedures and an A/B testing approach. To detect the user preferences, behavior, and the optimal version of the forms for all kinds of users, researchers built predictive models using machine-learning algorithms (trained with data from more than 3000 users who participated previously in the questionnaires), extracting the most relevant factors that describe the models, and clustering the users based on their similar characteristics and these factors. Based on these groups and their performance in the system, the researchers generated heuristic rules between the different versions of the web forms to guide users to the most adequate version (modifying the user interface and user experience) for them. To validate the approach and con rm the improvements, the authors tested these redirection rules on a group of more than 1000 users. The results with this cohort of users were better than those achieved without redirection rules at the initial stage. Besides these promising results, the paper proposes

    Solicitors' CPD: time to change from regulatory stick to regulatory carrot?

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    Summary: The legal professions are agreed on the need for some form of continuing professional development (“CPD”) after qualification. What is less clear is the intention of such frameworks and in contrast to other forms of more diffuse learning in the workplace. I will explore two areas of tension in the current solicitors‟ CPD system which will bear attention before any of these three related objectives can be achieved: Between a didactic form of delivery focussing on technical updating of knowledge of law and procedure and more “difficult” participative CPD activity; Between accountability, regulation and personal development as drivers behind the CPD scheme dear to different stakeholders. The paper will conclude that, whilst the paradigm shift apparent in the regulators and the professional body is to be welcomed, a change of culture in the profession as a whole is required. This requires CPD, in partnership with other forms of learning, to be viewed in terms of outputs and benefits: the carrots of the title. It is not only a negligence-avoiding maintenance of a static level of competence but a mechanism to address the change which will inevitably result from the full implementation of the Legal Services Act 2007
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