10,427 research outputs found

    ACTS in Need: Automatic Configuration Tuning with Scalability Guarantees

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    To support the variety of Big Data use cases, many Big Data related systems expose a large number of user-specifiable configuration parameters. Highlighted in our experiments, a MySQL deployment with well-tuned configuration parameters achieves a peak throughput as 12 times much as one with the default setting. However, finding the best setting for the tens or hundreds of configuration parameters is mission impossible for ordinary users. Worse still, many Big Data applications require the support of multiple systems co-deployed in the same cluster. As these co-deployed systems can interact to affect the overall performance, they must be tuned together. Automatic configuration tuning with scalability guarantees (ACTS) is in need to help system users. Solutions to ACTS must scale to various systems, workloads, deployments, parameters and resource limits. Proposing and implementing an ACTS solution, we demonstrate that ACTS can benefit users not only in improving system performance and resource utilization, but also in saving costs and enabling fairer benchmarking

    Rethinking the Dutch Innovation Agenda: Management and Organization Matter Most

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    In this essay, we challenge the present dominant emphasis in the Dutch Innovation Debate on the creation of technological innovations, the focus on a few core technologies, and the allocation of more financial resources. We argue that managerial capabilities and organizing principles for innovation should have a higher priority on the Dutch Innovation Agenda. Managerial capabilities for innovation deal with cognitive elements such as the capacity to absorb knowledge, create entrepreneurial mindsets, and facilitate managerial experimentation and higher-order learning abilities. These capacities can only be developed by distinctive managerial roles that enhance hierarchy, teaming and shared norms. Utilizing these unique managerial capabilities requires novel organizing principles, such as managing internal rates of change, nurturing self-organization and balancing high levels of exploration and exploitation. These managerial capabilities and organizing principles of innovation create new sources of productivity growth and competitive advantage.The dramatic fall back of the Netherlands in the league of innovative and high productivity countries of the World Economic Forum-Report can be mainly attributed to the present lack in the Netherlands of these key managerial and organizational enablers of innovation and productivity growth. We provide various levers for building unique managerial capabilities and novel organizing principles of innovation. Moreover, we describe the necessary roles that different actors have to play in this innovation arena. In particular, we focus on the often neglected but important role of strategic regulations that speed up innovation and productivity growth. They are the least expensive way to boost innovation in organizations in both the Dutch private and public sector. Finally, we discuss the implications for the Dutch Innovation Agenda. It should start with setting a challenging ambition, namely the return of The Netherlands within the WEF- league of the top-ten most innovative and productive countries of the world. Considering the under-utilization of available knowledge stemming from technological innovations, managerial and organizational determinants of innovation should receive first priority. These determinants have a high strategic relevance and should receive more public recognition. We suggest to organize an annual innovation ranking of the most outstanding Dutch firms, to develop an innovation audit that measures firms’ non-technological innovation capacity, and to create an overall innovation policy for fast diffusion of new managerial capabilities and adequate organizing principles throughout the Dutch private and public sector.In conclusion, we add five new items to the Dutch Innovation Agenda:1. Prioritize administrative innovationsInvestments in management and organization determinants of absorption of knowledge and its successful application (administrative innovation) should have a higher priority than investments in technological innovations.2. Build new managerial capabilities and develop novel organizing principlesFor these administrative innovations to succeed, firms have to build managerial capabilities (broad knowledge-base, absorptive capacity, managerial experimentation, higher-order learning) and various management roles (hierarchy, teaming, shared norms) to increase the assimilation of external knowledge and the utilization for innovation. Moreover, they have to develop novel organizing principles that increase internal rates of change, nurture self-organization and synchronize high levels of exploration and exploitation.3. Set levers of innovation by creating selection environments that favor innovation and by redefining the roles of key actors Management has to create a proper organizational context to foster entrepreneurship and innovation (internal selection environment). Governmental agencies have to focus on innovation and productivity enabling strategic regulations (external selection environment). Moreover, research institutes, business schools, and consulting firms should not only focus on technological knowledge, but also on managerial and organizational knowledge for innovation. In the end, private small and large firms and public institutions have to recognize that they all must contribute to the national goal of increasing innovation and productivity growth.4. Create a new challenging national ambition: return of the Netherlands within the top-10The Netherlands has to return to the top-ten most innovative and productive countries in the world as reflected in international rankings such as the World Economic Forum’s Global Competitiveness Index.5. Proliferate an awareness and passion for innovation:Create public awareness and recognition of the societal relevance of outstanding managerial capabilities and organizing principles to innovation and productivity growth:o Initiate a Dutch innovation ranking in terms of management and organization;o Develop proper assessment tools for innovations in management and organization;o Enhance reporting on the progress on managerial and organizational innovation as part of modern corporate governance and as part of outstanding annual reports.These issues may contribute to rethinking the fundamental sources of innovation, productivity growth and sustainable competitive advantage of the Dutch economy.dynamic capabilities;knowledge transfer;exploitation;exploration;mANAGEMENT;mindsets;organizing pinciples;srategic rgulation;strategy innovation

    A Survey of Monte Carlo Tree Search Methods

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    Monte Carlo tree search (MCTS) is a recently proposed search method that combines the precision of tree search with the generality of random sampling. It has received considerable interest due to its spectacular success in the difficult problem of computer Go, but has also proved beneficial in a range of other domains. This paper is a survey of the literature to date, intended to provide a snapshot of the state of the art after the first five years of MCTS research. We outline the core algorithm's derivation, impart some structure on the many variations and enhancements that have been proposed, and summarize the results from the key game and nongame domains to which MCTS methods have been applied. A number of open research questions indicate that the field is ripe for future work
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