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  • Machine Learning Methods for Computational Sustainability

    Creator:
    Liu, Liping
    Abstract:
    Maintaining the sustainability of the earth’s ecosystems has attracted much attention as these ecosystems are facing more and more pressure from human activities. Machine learning can play an important role in promoting sustainability as a large amount of data is being collected from ecosystems. There are at least three important...
    Resource Type:
    Dissertation
    Full Text:
    data. Second, the thesis models bird migration with a probabilistic graphical model at the population

  • Movement of populations in restricted regions

    Creator:
    Guenther, John H.
    Abstract:
    Mathematicians have been concerned with population growth and movement since the days of Leonhard Euler and Thomas Malthus. Chapter i of this paper sketches the history of the development of the modern population theory. In Chapter II, a partial differential equation is derived which governs the growth and movement of...
    Resource Type:
    Masters Thesis
    Full Text:
    similar to the way it is still treated today. The mathematical model formulated by Galton and Watson has

  • Factors affecting bird counts and their influence on density estimates

    Creator:
    McCracken, Marti L.
    Abstract:
    Variable area surveys are used in large geographic regions to estimate the density of birds distributed over a region. If some birds go undetected, a measure of the effective area surveyed, the amount of area occupied by the birds detected, is needed. The effective area surveyed is determined by observational,...
    Resource Type:
    Dissertation
    Full Text:
    Factors Affecting Bird Counts and Their Influence on Density

  • Spatial and Temporal Dynamics of Broad-scale Predictive Models : Influences of Scale

    Creator:
    Hooper, Samuel
    Abstract:
    Developing accurate predictive distribution models requires adequately representing relevant spatial and temporal scales, as these scales are ultimately reflective of the relationships between distributions and influential environmental conditions. In this research, we considered both spatial and temporal scale and the influence each has on predicting broad-scale distributions of two disparate...
    Resource Type:
    Masters Thesis
    Full Text:
    representing bird distributions when they are more stable (e.g., the breeding season), a model with globally