Now showing items 1-20 of 1274

  • Node.js scalability investigation in the cloud

    Zhu, Jiapeng; Patros, Panagiotis; Kent, Kenneth B.; Dawson, Michael (ACM, 2018)
    Node.js has gained popularity in cloud development due to its asynchronous, non-blocking and event-driven nature. However, scalability issues can limit the number of concurrent requests while achieving an acceptable level ...
  • Collecting sensitive personal data in a multi-cultural environment

    Hinze, Annika; Timpany, Claire; Bowen, Judy; Chang, Carole; Starkey, Nicola J.; Elder, Hinemoa (2018)
    Traumatic Brain Injury (TBI) has long-term effects on memory and cognitive functions. This paper discusses the challenges encountered and lessons learned from developing augmented memory aids for people with TBI. In ...
  • Using the HTRC Data Capsule Model to promote reuse and evolution of experimental analysis of digital library data: a case study of topic modeling

    Bainbridge, David; Nichols, David M.; Hinze, Annika; Downie, J. Stephen (IEEE, 2019)
    We report on a case-study to independently reproduce the work given in a publicly available blog on how to develop a topic model sourced from a collection of texts, where both the data set and source code used are readily ...
  • Cross-helically forced and decaying hydromagnetic turbulence

    Brandenburg, Axel; Oughton, Sean (WILEY-V C H VERLAG GMBH, 2018)
    We study the evolution of kinetic and magnetic energy spectra in magnetohydrodynamic flows in the presence of strong cross helicity. For forced turbulence, we find a weak inverse transfer of kinetic energy toward the ...
  • Research and development absorptive capacity: a Māori perspective

    Ruckstuhl, Katharina; Amoamo, Maria; Hart, Ngaire Hiria; Martin, William John; Keegan, Te Taka Adrian Gregory; Pollock, Richard (The Royal Society of New Zealand, 2019)
    This paper presents a view of research and development absorptive capacity from a Māori perspective. The assessment is part of a case study of a longitudinal programme – Science for Technological Innovation: Kia kotahi mai ...
  • Design and the fourth industrial revolution. Dangers and opportunities for a mutating discipline

    Garcia Ferrari, Tomás (Taylor & Francis (Routledge), 2017)
    The nature of design has always been related to socio-technological forces. In the twentieth century, the first and second orders of design were central in the establishment of graphic and industrial design. In the early ...
  • Maumahara Papahou: A mobile augmented reality memory treasure box based on Māori mnemonic aids

    Taia, Ivy; Hinze, Annika; Vanderschantz, Nicholas; Keegan, Te Taka Adrian Gregory (2019)
    He aha te mea nui o te ao? He tangata, he tangata, he tangata. What is the most important thing in the world? It is people, it is people, it is people. Traumatic brain injury (TBI) is a worldwide “silent epidemic” causing ...
  • Insider threat modeling: An adversarial risk analysis approach

    Joshi, Chaitanya; Rios Insua, David; Rios, Jesus (2019)
    Insider threats entail major security issues in geopolitics, cyber security and business organizations. Most earlier work in the field has focused on standard game theoretic approaches. We provide here two alternative, ...
  • Exploration of association rule mining for coding consistency and completeness assessment in inpatient administrative health data.

    Peng, Mingkai; Sundararajan, Vijaya; Williamson, Tyler; Minty, Evan P.; Smith, Tony C.; Doktorchik, Chelsea T.A.; Quan, Hude (2018)
    OBJECTIVE: Data quality assessment is a challenging facet for research using coded administrative health data. Current assessment approaches are time and resource intensive. We explored whether association rule mining (ARM) ...
  • The University of Waikato usability laboratory

    Thomson, Kirsten; Apperley, Mark (2001)
    The University of Waikato Usability Laboratory is an environment where researchers are able to study and assess the usability of products while being used by their intended users. It allows for flexible configuration, and ...
  • FreeForm: Informal form design on a large interactive display surface

    Plimmer, Beryl; Apperley, Mark (2001)
    This demonstration shows the tool we have developed for hand-sketching user interfaces. Our motivation for developing this tool is to provide an environment where novice programmers can move freely along the design continuum ...
  • Evaluting a sketch environment for novice programmers

    Plimmer, Beryl; Apperley, Mark (ACM Press, 2003)
    This paper describes the evaluation of an electronic sketch interface design tool for novice programmers. A comparative study was undertaken with small groups using two different shared space environments; a conventional ...
  • A survey of neural network-based cancer prediction models from microarray data

    Daoud, Maisa; Mayo, Michael (Elsevier, 2019)
    Neural networks are powerful tools used widely for building cancer prediction models from microarray data. We review the most recently proposed models to highlight the roles of neural networks in predicting cancer from ...
  • AffectiveTweets: a Weka package for analyzing affect in tweets

    Bravo-Marquez, Felipe; Frank, Eibe; Pfahringer, Bernhard; Mohammad, Saif M. (Microtome Publishing, 2019)
    AffectiveTweets is a set of programs for analyzing emotion and sentiment of social media messages such as tweets. It is implemented as a package for the Weka machine learning workbench and provides methods for calculating ...
  • WekaDeeplearning4j: A deep learning package for weka based on Deeplearning4j

    Lang, Steven; Bravo-Marquez, Felipe; Beckham, Christopher J.; Hall, Mark A.; Frank, Eibe (Elsevier BV, 2019)
    Deep learning is a branch of machine learning that generates multi-layered representations of data, commonly using artificial neural networks, and has improved the state-of-the-art in various machine learning tasks (e.g., ...
  • Ensembles of nested dichotomies with multiple subset evaluation

    Leathart, Tim; Frank, Eibe; Pfahringer, Bernhard; Holmes, Geoffrey (Springer, 2019)
    A system of nested dichotomies (NDs) is a method of decomposing a multiclass problem into a collection of binary problems. Such a system recursively applies binary splits to divide the set of classes into two subsets, and ...
  • Prior Robustness for Bayesian Implementation of the Fault Tree Analysis

    Joshi, Chaitanya; Ruggeri, Fabrizio; Wilson, Simon P. (IEEE, 2018)
    We propose a prior robustness approach for the Bayesian implementation of the fault tree analysis (FTA). FTA is often used to evaluate risk in large, safety critical systems but has limitations due to its static structure. ...
  • The effect of surface tension on free-surface flow induced by a point sink

    Hocking, Graeme Charles; Nguyen, H.H.N.; Forbes, L.K.; Stokes, Tim E. (Cambridge University Press, 2016)
    The steady, axisymmetric flow induced by a point sink (or source) submerged in an inviscid fluid of infinite depth is computed and the resulting deformation of the free surface is obtained. The effect of surface tension ...
  • Algebraic properties of If-Then-Else and commutative three-valued tests

    Soo, Khi-Ui; Stokes, Tim E. (2019)
    This paper establishes a finite axiomatization of possibly non-halting computer programs and tests, with the if-then-else operation. The model is a two-sorted algebra, with one sort being the programs and the other being ...
  • Counterexample Computation in Compositional Nonblocking Verification

    Malik, Robi; Ware, Simon (Elsevier, 2018)
    This paper describes algorithms to compute a counterexample when compositional nonblocking verification determines that a discrete event system is blocking. Counterexamples are an important feature of model checking that ...