1,810,147 research outputs found

    Valentin family portrait outdoors in a garden Portraits Family

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    l-r: Julie Hellmann, Marie Bamberg, Heinrich Valentin, Marta Valentin and Helene ValentinDigital Imag

    Depoimento de Marcelo Valentin Silva [Valentin Cruz]

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    Entrevista com Valentin Cruz (Valentin Cruz é nome artístico) bailarino e professor de tango na cidade de Porto alegre. O depoimento apresenta o contato de Valentin com o tango, bem como sua trajetória como professor e bailarino de tango em Porto Alegre.Danç

    Depoimento de Marcelo Valentin Silva [Valentin Cruz]

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    Entrevista com Valentin Cruz (Valentin Cruz é nome artístico) bailarino e professor de tango na cidade de Porto alegre. O depoimento apresenta o contato de Valentin com o tango, bem como sua trajetória como professor e bailarino de tango em Porto Alegre.Danç

    Valentin family in South Africa Portraits Groups

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    Dedication Fritz Valentin Famil

    Ästhetische Schriften / Veit Valentin

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    ÄSTHETISCHE SCHRIFTEN / VEIT VALENTIN Ästhetische Schriften / Veit Valentin Goethes Faustdichtung in ihrer künstlerischen Einheit / dargest. von Veit Valentin (Bd. 2) (1

    Photograph of oil painting portrait of Martin Valentin Portraits; Men

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    Verso: "Martin Valentin (Vater von Heinrich Valentin), geb. 3.VIII.1800 in Berlin, gest. 24.II.1856 in Berlin. Original s.Zt.im Besitz von Martin Valentin jun.in Muenchen. Oelbild. Hoher Kragen (sog. Vatermoerder), schwarze Umleg-Krawatte, Hemdenknopf in Form eines Schluessels."Digital Image1800-1856#29 No 10F 1206

    Valentin, Ilse Portraits Women

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    Digital Image1811-189

    Valentin, Ilse Portraits Women

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    Digital Image1811-189

    Designing Risk-Averse Bidding Strategies in Sequential Auctions for Transportation Orders

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    Designing efficient bidding strategies for agents participating in multiple, sequential auctions remains an important challenge for researchers in agent-mediated electronic markets. The problem is particularly hard if the bidding agents have complementary (i.e. super-additive) utilities for the items being auctioned, such as is often the case in distributed transportation logistics. This paper studies the effect that a bidding agent’s attitude towards taking risks plays in her optimal, decision-theoretic bidding strategy. We model the sequential bidding decision process as an MDP and we analyze, for a category of expectations of future price distributions, the effect that a bidder’s risk aversion profile has on her decision-theoretic optimal bidding policy. Next, we simulate the above strategies, and we study the effect that an agent’s risk aversion has on the chances of winning the desired items, as well as on the market efficiency and expected seller revenue. The paper extends the results presented in our previous work (reported in [1]), not only by providing additional details regarding the analytical part, but also by considering a more complex and realistic market setting for the simulations. This simulation setting is based on a real transportation logistics scenario [2]), in which bidders have to choose between several combinations (bundles) of orders that can be contracted for transportation

    Lab Projects - Valentin Riedl

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    Central landing page for all research projects in the Neuroenergetics Lab of Valentin Ried
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