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Browsing by Subject "Algorithms"

Browsing by Subject "Algorithms"

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  • Roper, Lucinda; Tran, Duong Thuy; Einarsdóttir, Kristjana; Preen, David B.; Havard, Alys (Public Library of Science (PLoS), 2018-08-30)
    Background The linkage of routine data collections are valuable for population-based evaluation of smoking cessation pharmacotherapy in pregnancy where little is known about the utilisation or safety of these pharmacotherapies antenatally. The use of ...
  • Losievskaja, Elena (Háskólinn í Reykjavík, 2011-01-24)
    This thesis deals with approximation algorithms for the Maximum Independent Set and the Minimum Hitting Set problems on hypergraphs. As a hypergraph is a generalization of a graph, the question is whether the best known approximations on graphs can be ...
  • Guðjónsdóttir, María Sigríður (2016-01)
    Liquid dominated reservoirs are a common type of hydrothermal reservoirs. They consist of fractured rock and reservoir fluid which may obey Darcy’s law. Steam can form in such reservoirs either through heat input which causes temperature increase or ...
  • Cimini, Matteo (Háskólinn í Reykjavík, 2012-12-09)
    Structural Operational Semantics (SOS) is one of the most natural ways for providing programming languages with a formal semantics. Results on the meta-theory of SOS typically (but not solely) say that if the inference rules used in writing the semantic ...
  • Halldórsson, Magnús M.; Holzer, Stephan; Markatou, Evangelia Anna; Lynch, Nancy (Elsevier BV, 2020-04)
    We consider the Leader Election Problem in the Signal-to-Interference-plusNoise-Ratio (SINR) model where nodes can adjust their transmission power. We show that in this setting it is possible to elect a leader in two communication rounds, with high ...
  • the Chronic Kidney Disease Epidemiology Collaboration (2021-11-04)
    BACKGROUND: Current equations for estimated glomerular filtration rate (eGFR) that use serum creatinine or cystatin C incorporate age, sex, and race to estimate measured GFR. However, race in eGFR equations is a social and not a biologic construct. ...
  • 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 ...
  • Jónsson, Kristján Valur (Háskólinn í Reykjavík, 2014-02-03)
    In-network aggregation is an important paradigm for current and future networked systems, enabling efficient cooperate processing of aggregate information, while providing sub-linear scalability properties. However, security of this important class of ...