Research Commons

Browsing Computing and Mathematical Sciences by Issue Date

Research Commons

Browsing Computing and Mathematical Sciences by Issue Date

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  • Laughlin, Daniel C.; Joshi, Chaitanya (Elsevier, 2015)
    Every species on Earth fills a unique environmental niche that is driven, in part, by the process of environmental filtering, where the adaptive value of the functional traits of individuals determine their fitness within ...
  • Laing, Simon; Masoodian, Masood (Wiley-Blackwell, 2015)
    Existing computer technologies poorly support the ideation phase common to graphic design practice. Finding and indexing visual material to assist the process of ideation often fall on the designer, leading to user experiences ...
  • Britz, Thomas; Cavenagh, Nicholas J.; Sørensen, Henrik Kragh (Electronic Journal of Combinatorics, 2015)
    We prove that each maximal partial Latin cube must have more than 29.289% of its cells filled and show by construction that this is a nearly tight bound. We also prove upper and lower bounds on the number of cells containing ...
  • Jackson, Marcel; Stokes, Tim E. (Elsevier, 2015)
    We study the algebraic theory of computable functions, which can be viewed as arising from possibly non-halting computer programs or algorithms, acting on some state space, equipped with operations of composition, if-then-else ...
  • Jung, Yoonsuh; Hu, Jianhua (Taylor and Francis, 2015)
    Cross-validation (CV) type of methods have been widely used to facilitate model estimation and variable selection. In this work, we suggest a new K-fold CV procedure to select a candidate ‘optimal’ model from each hold-out ...
  • Cavenagh, Nicholas J. (Electronic Journal of Combinatorics, 2015)
    Let G be an even bipartite graph with partite sets X and Y such that |Y | is even and the minimum degree of a vertex in Y is at least 95|X|/96. Suppose furthermore that the number of edges in G is divisible by 4. Then G ...
  • Litvinenko, Yuri E.; Wheatland, M.S. (The American Astronomical Society, 2015)
    Disintegration of sunspots (and starspots) by fluxtube erosion, originally proposed by Simon and Leighton, is considered. A moving boundary problem is formulated for a nonlinear diffusion equation that describes the sunspot ...
  • Delbourgo, Daniel; Peters, Lloyd (Cambridge University Press, 2015)
    For the (d+1)-dimensional Lie group G=Z×pZp⊕d we determine through the use of p-power congruences a necessary and sufficient set of conditions whereby a collection of abelian L-functions arises from an element in K₁Zp[G]. ...
  • Akram, Raja Naeem; Ko, Ryan K.L. (IEEE Computer Society, 2015)
    Along with the invention of computers and interconnected networks, physical societal notions like security, trust, and privacy entered the digital environment. The concept of digital environments begins with the trust ...
  • Delamore, Baden; Ko, Ryan K.L. (Institute of Electrical and Electronics Engineers Inc., 2015)
    The reliance on Web applications has increased rapidly over the years. At the same time, the quantity and impact of application security vulnerabilities have grown as well. Amongst these vulnerabilities, SQL Injection has ...
  • Akram, Raja Naeem; Ko, Ryan K.L. (Institute of Electrical and Electronics Engineers Inc., 2015)
    One of the most crucial components of modern Information Technology (IT) systems is data. It can be argued that the majority of IT systems are built to collect, store, modify, communicate and use data, enabling different ...
  • Fitzgerald, Alannah; Wu, Shaoqun; Marín, María José (Research-publishing.net, 2015)
    In this case study we present innovative work in building open corpus-based language collections by focusing on a description of the opensource multilingual Flexible Language Acquisition (FLAX) language project, which is ...
  • Litvinenko, Yuri E.; McMahon, Liam C. (Elsevier Ltd, 2015)
    The formation of a current sheet in a weakly collisional plasma can be modelled as a finite-time singularity solution of magnetohydrodynamic equations. We use an exact self-similar solution to confirm and generalise a ...
  • Keegan, Te Taka Adrian Gregory; Mato, Paora James; Ruru, Stacey (Ngā Pae o te Māramatanga, 2015)
    Language revitalization theory suggests that one way to improve the health of a language is to increase the number of domains where the language is used. Social network platforms provide a variety of domains where indigenous- ...
  • Frank, Eibe; Mayo, Michael; Kramer, Stefan (ACM Press, 2015)
    Model tree induction is a popular method for tackling regression problems requiring interpretable models. Model trees are decision trees with multiple linear regression models at the leaf nodes. In this paper, we propose ...
  • Luz, Saturnino; Masoodian, Masood; Cesario, Manuel (Taylor & Francis, 2015)
    The development and deployment of information technology, particularly mobile tools, to support collaboration between different groups of healthcare professionals has been viewed as a promising way to improve disease ...
  • Craig, Ian J.D.; Effenberger, Frederic (IOP PUBLISHING LTD, 2014)
    The open problem of how singular current structures form in line-tied, three-dimensional magnetic fields is addressed. A Lagrangian magneto-frictional relaxation method is employed to model the field evolution toward the ...
  • Jung, Yoonsuh; Lee, Yoonkyung; MacEachern, Steve N, (2014)
    Quantile regression (QR) provides estimates of a range of conditional quantiles. This stands in contrast to traditional regression techniques, which focus on a single conditional mean function. Lee et al. [Regularization ...
  • Emslie, A. Gordon; Holman, Gordon D.; Litvinenko, Yuri E. (Institute of Physics Publishing, 2014)
    Electrons accelerated in solar flares are injected into the surrounding plasma, where they are subjected to the influence of collisional (Coulomb) energy losses. Their evolution is modeled by a partial differential equation ...
  • Durrant, Robert J.; Kabán, Ata (Springer Verlag, 2014)
    We prove theoretical guarantees for an averaging-ensemble of randomly projected Fisher linear discriminant classifiers, focusing on the casewhen there are fewer training observations than data dimensions. The specific form ...