Now showing items 198-217 of 1361

  • Computing with confidence: a Bayesian approach 

    Partridge, Derek; Fieldsend, Jonathan E.; Krzanowski, Wojtek J.; Bailey, Trevor C.; Everson, Richard M.; Schetinin, Vitaly (2006)
    Bayes’ rule is introduced as a coherent strategy for multiple recomputations of classifier system output, and thus as a basis for assessing the uncertainty associated with a particular system results --- i.e. a basis for ...
  • Concise stability conditions for systems with static nonlinear feedback expressed by a quadratic program 

    Li, Guang; Heath, W.P.; Lennox, B. (Institution of Engineering and Technology (IET), 2008)
    The stability of the feedback connection of a strictly proper linear time-invariant stable system with a static nonlinearity expressed by a convex quadratic program (QP) is considered. From the Karush-Kuhn-Tucker conditions ...
  • Conditions for propagation and block of excitation in an asymptotic model of atrial tissue. 

    Simitev, R. D.; Biktashev, V. N. (2006)
    Detailed ionic models of cardiac cells are difficult for numerical simulations because they consist of a large number of equations and contain small parameters. The presence of small parameters, however, may be used for ...
  • Conditions for sink-to-source transitions and runaway feedbacks from the land carbon cycle 

    Cox, Peter M.; Huntingford, Chris; Jones, Chris D. (Cambridge University Press, 2006-02)
    The first GCM climate-carbon cycle simulation indicated that the land biosphere could provide a significant acceleration of 21st century climate change (Cox et al. 2000). In this numerical experiment the carbon storage was ...
  • Cone exchange transformations and boundedness of orbits 

    Ashwin, Peter; Goetz, Arek (Cambridge University Press, 2010)
    We introduce a class of two-dimensional piecewise isometries on the plane that we refer to as cone exchange transformations (CETs). These are generalizations of interval exchange transformations (IETs) to 2D unbounded ...
  • Confidence in Classification: A Bayesian Approach 

    Krzanowski, Wojtek J.; Bailey, Trevor C.; Partridge, Derek; Fieldsend, Jonathan E.; Everson, Richard M.; Schetinin, Vitaly (Springer Verlag, 2006)
    Bayesian classification is currently of considerable interest. It provides a strategy for eliminating the uncertainty associated with a particular choice of classifiermodel parameters, and is the optimal decision-theoretic ...
  • Confident interpretation of Bayesian decision tree ensembles for clinical applications 

    Schetinin, Vitaly; Fieldsend, Jonathan E.; Partridge, Derek; Coats, Timothy J.; Krzanowski, Wojtek J.; Everson, Richard M.; Bailey, Trevor C.; Hernandez, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Bayesian averaging (BA) over ensembles of decision models allows evaluation of the uncertainty of decisions that is of crucial importance for safety-critical applications such as medical diagnostics. The interpretability ...
  • Configuring and enhancing measurement systems for damage identification 

    Kripakaran, Prakash; Smith, Ian F.C. (Elsevier, 2009)
    Engineers often decide to measure structures upon signs of damage to determine its extent and its location. Measurement locations, sensor types and numbers of sensors are selected based on judgment and experience. Rational ...
  • A conjecture of Stanley on alternating permutations 

    Chapman, Robin; Williams, Lauren K. (Electronic Journal of Combinatorics, 2007)
    We give two simple proofs of a conjecture of Richard Stanley concerning the equidistribution of derangements and alternating permutations with the maximal number of fixed points.
  • Conoscopic observation of director reorientation during Poiseuille flow of a nematic liquid crystal 

    Holmes, Christopher J.; Cornford, Stephen Leslie; Sambles, J. Roy (American Institute of Physics, 2009)
    Director reorientation under pressure driven (Poiseuille) flow is observed conoscopically for the liquid crystal 5CB aligned at an azimuthal angle of 45° to the direction of flow. A polyimide surface treatment (AL 1254) ...
  • The conservation value of abandoned pits and quarries in Cornwall: a report of the conference held at County Hall, Truro on 22nd March 1999 

    Spaldng, Adrian; Hartgroves, Stephen; Macadam, John; Owens, David (The Historic Environment Service, Cornwall County Council, 2002)
  • Consistency of certain constitutive relations with quantum electromagnetism 

    Horsley, S.A.R. (American Physical Society, 2011)
    Recent work by Philbin [ New J. Phys. 12 123008 (2010)] has provided a Lagrangian theory that establishes a general method for the canonical quantization of the electromagnetic field in any dispersive, lossy, linear ...
  • Constructing constrained-version of magic squares using selection hyper-heuristics 

    Kheiri, Ahmed; Özcan, Ender (Oxford University Press for BCS, The Chartered Institute for IT, 2014)
    A square matrix of distinct numbers in which every row, column and both diagonals have the same total is referred to as a magic square. Constructing a magic square of a given order is considered a difficult computational ...
  • Context-dependent interaction leads to emergent search behavior in social aggregates 

    Torney, Colin; Neufeld, Zoltan; Couzin, Iain D. (National Academy of Sciences, 2009)
    Locating the source of an advected chemical signal is a common challenge facing many living organisms. When the advecting medium is characterized by either high Reynolds number or high Peclet number, the task becomes highly ...
  • Continuous evolution of the in-plane magnetic anisotropies with thickness in epitaxial Fe films 

    Gester, M.; Daboo, C.; Hicken, R.J.; Gray, S.J.; Ercole, A.; Bland, J.A.C. (American Institute of Physics, 1996)
    We have studied the evolution of the magnetic in‐plane anisotropy in epitaxial Fe/GaAs films of both (001) and (110) orientation as a function of the Fe layer thickness using the longitudinal magneto‐optic Kerr effect and ...
  • Continuous Trait-Based Particle Swarm Optimisation (CTB-PSO) 

    Keedwell, Edward; Morley, Mark; Croft, Darren (Springer Verlag, 2012)
    In natural flocks, individuals are often of the same species, but there exists considerable variation in the traits possessed by each individual. In much the same way as humans display varied levels of aggression, ...
  • Control of scroll-wave turbulence using resonant perturbations 

    Morgan, S. W.; Biktasheva, I. V.; Biktashev, V. N. (American Physical Society, 2008)
    Turbulence of scroll waves is a sort of spatiotemporal chaos that exists in three-dimensional excitable media. Cardiac tissue and the Belousov-Zhabotinsky reaction are examples of such media. In cardiac tissue, chaotic ...
  • Control of the stop band of an acoustic double fishnet 

    Murray, Alasdair R.J.; Hendry, Euan; Summers, I.R.; Sambles, J. Roy; Hibbins, Alastair P. (Journal of the Acoustical Society of America, 2013)
    The acoustic transmittance of two closely spaced solid plates, each perforated with a square array of cylindrical holes, exhibits a band of near-perfect acoustic attenuation originating from hybridization between a resonance ...
  • Control of Transient Power during Unintentional Islanding of Microgrids 

    Issa, Walid; Abusara, Mohammad; Sharkh, Suleiman (IEEE, 2014)
    In inverter-based microgrids, the paralleled inverters need to work in grid-connected mode and stand-alone mode and to transfer seamlessly between the two modes. In grid-connected mode, the inverters control the amount of ...
  • Control-based continuation of unstable periodic orbits 

    Sieber, J.; Krauskopf, Bernd; Wagg, David; Neild, Simon; Gonzalez-Buelga, A. (American Society of Mechanical Engineers (ASME), 2011)
    We present an experimental procedure to track periodic orbits through a fold (saddle-node) bifurcation and demonstrate it with a parametrically excited pendulum experiment where the tracking parameter is the amplitude of ...