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Browsing by Subject "Reiknirit"

Browsing by Subject "Reiknirit"

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  • Hyytia, Esa; Righter, Rhonda; Bilenne, Olivier; Wu, Xiaohu (Elsevier BV, 2017-09)
    We study the M/D/1 queue when jobs have firm deadlines for waiting (or sojourn) time. If a deadline is not met, a job-specific deadline violation cost is incurred. We derive explicit value functions for this M/D/1 queue that enable the development of ...
  • Morris, John N.; Berg, Katherine; Howard, Elizabeth P.; Jónsson, Pálmi V.; Craig, Meredith (Elsevier BV, 2019-08)
    Objective: To identify home care clients with substantial functional deficits who had capacity to improve and, thus, for whom recovery goals should be articulated. Design: Retrospective longitudinal analysis of an international home care database. ...
  • Liu, Ying; Cheng, Qingsha S.; Koziel, Slawomir (MDPI AG, 2019-07-11)
    In this article, a generalized sequential domain patching (GSDP) method for efficient multi-objective optimization based on electromagnetics (EM) simulation is proposed. The GSDP method allowing fast searching for Pareto fronts for two and three ...
  • Bessarab, Pavel; Müller, Gideon Philipp; Lobanov, Igor S.; Rybakov, Filipp N.; Kiselev, Nikolai S.; Jónsson, Hannes; Uzdin, Valery M.; Blügel, Stefan; Bergqvist, Lars; Delin, Anna (Springer Nature, 2018-02-21)
    The skyrmion racetrack is a promising concept for future information technology. There, binary bits are carried by nanoscale spin swirls–skyrmions–driven along magnetic strips. Stability of the skyrmions is a critical issue for realising this technology. ...
  • Gotz, Markus; Cavallaro, Gabriele; Geraud, Thierry; Book, Matthias; Riedel, Morris (Institute of Electrical and Electronics Engineers (IEEE), 2018-11-01)
    Component trees are region-based representations that encode the inclusion relationship of the threshold sets of an image. These representations are one of the most promising strategies for the analysis and the interpretation of spatial information ...
  • Koziel, Slawomir; Bekasiewicz, Adrian (Walter de Gruyter GmbH, 2015-09-23)
    This paper addresses computationally feasible multi-objective optimization of antenna structures. We review two recent techniques that utilize the multi-objective evolutionary algorithm (MOEA) working with fast antenna replacement models (surrogates) ...
  • Aceto, Luca; Fabregas, Ignacio; Garcia-Perez, Alvaro; Ingolfsdottir, Anna; Ortega-Mallen, Yolanda (2019-10-14)
    The nominal transition systems (NTSs) of Parrow et al. describe the operational semantics of nominal process calculi. We study NTSs in terms of the nominal residual transition systems (NRTSs) that we introduce. We provide rule formats for the specifications ...
  • Liu, Bo; Koziel, Slawomir; Ali, Nazar (Oxford University Press (OUP), 2016-11-20)
    Efficiency improvement is of great significance for simulation-driven antenna design optimization methods based on evolutionary algorithms (EAs). The two main efficiency enhancement methods exploit data-driven surrogate models and/or multi-fidelity ...
  • Ogurtsov, Stanislav; Kozieł, Sławomir; Bekasiewicz, Adrian (Walter de Gruyter GmbH, 2016-05-31)
    A simulation-based optimization approach to design of phase excitation tapers for linear phased antenna arrays is presented. The design optimization process is accelerated by means of Surrogate-Based Optimization (SBO); it uses a coarse-mesh surrogate ...