Now showing items 21-33 of 33

  • Quality of data for geo-spatial studies of alcohol-related harm 

    Hay, Geoff; Kypri, Kypros; Whigham, Peter A; Langley, John
    There is growing research interest in the relationship between the geographic density of liquor outlets and the incidence of various harms (e.g., assault), however, to date, detail is lacking on the quality of data used ...
  • A shape metric for evolving time series models 

    Whigham, Peter A; Aldridge, Colin H
    Most applications of Genetic Programming to time series modeling use a fitness measure for comparing potential solutions that treat each point in the time series independently. This non-temporal approach can lead to some ...
  • Spatial analysis of home range, core area and habitat selection of red deer (Cervus elaphus) on an extensively managed high-country station 

    Netzer, Michael; Whigham, Peter A; Dickinson, Katharine; Lord, Janice
    The aim of this research was to determine the behavior and habitat selection of red deer (Cervus elaphus) hinds during the calving period, on an extensively managed rangeland in the high-country of New Zealand’s South ...
  • Spatial location of genes within cells in gene interaction networks 

    Dameh, Mustafa; Whigham, Peter A; Stanton, Jo-Ann; Green, David
    Text mining techniques have become a popular method for discovering relationships between genes based on searching the biomedical literature. The co-occurrence of gene names within individual documents is used to produce ...
  • Spatial variation in the association between neighbourhood deprivation and access to alcohol outlets 

    Hay, Geoff; Whigham, Peter A; Kypri, Kypros; Langley, John
    Background: People who live in poor areas suffer higher mortality than those living in wealthier areas. People who live in poor areas in New Zealand have better access to alcohol and this association appears to vary ...
  • A spatially-explicit model of genetic tradeoff 

    Whigham, Peter A; Green, David
    Spatially-explicit, individual based models are used to explore the consequences of introducing two simple genetic tradeoff mechanisms to the gradient response of monoecious diploid individuals. A simple linear gradient ...
  • Spatio-temporal and object visualization in rugby union 

    Moore, Antoni; Whigham, Peter A; Aldridge, Colin H; Holt, Alec; Hodge, Ken
    The use of computer software as an aid to rugby, and sports coaching in general, is becoming increasingly utilized. Videoed sport is the most widely used form of raw data for sports analysis, though it is currently not ...
  • Sport and time geography: a good match? 

    Moore, Antoni; Whigham, Peter A; Holt, Alec; Aldridge, Colin H; Hodge, Ken
    This paper proposes using the rich visual “language” of Hägerstrand’s time geography to represent time-space relationships in sport, in particular within the spatial and temporal constraints of a game of rugby. Despite ...
  • The storage and reconstruction of polygon boundaries using circles 

    Moore, Antoni; Mason, Chris; Whigham, Peter A; Thompson-Fawcett, Michelle
    This paper investigates the accuracy of using circles to store polygon boundaries. Can a series of xy points be accurately replaced by a smaller array of variably-sized circles used in a non space filling sense to approximate ...
  • Time-line hidden Markov experts and its application in time series prediction 

    Wang, Xin; Whigham, Peter A; Deng, Da
    A modularised connectionist model, based on the Mixture of Experts (ME) algorithm for time series prediction, is introduced. A set of connectionist modules learn to be local experts over some commonly appearing states of ...
  • The use of boundary conditions for inductive models 

    Whigham, Peter A
    There is a large amount of interest in creating models from data using a variety of machine learning methods. Most of these approaches require a good distribution of observed values to produce reliable models. The use of ...
  • A vector-agent paradigm for dynamic urban modelling 

    Hammam, Yasser; Moore, Antoni; Whigham, Peter A; Freeman, Claire
    In the past, researchers and model developers were restricted by their theoretical knowledge about the city and how it might be simulated as well as constrained by technological limitations. Nevertheless, the simulation ...
  • A Voronoi-based distributed genetic algorithm 

    Whigham, Peter A; Dick, Grant
    The use of space for supporting evolution has been previously studied in the context of distributed Genetic Algorithms (DGA), where two standard approaches, island and grid based, are employed to define the population ...