Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"spatial dependency"”.
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Spatial dependency between a linear network and a point pattern
In this mini-dissertation we discuss the spatial relationship between point processes and a linear network. As a starting point, we discuss basic spatial point processes and tests for first-order homogeneity. Following that, we discuss second-order properties of point processes in the form of …
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Factors influencing hunting license sales in urban and rural areas of Illinois
… as in the first part. The third part considered spatial dependency of the model residuals, using the Moran test and Lagrange Multiplier test for diagnosis. Global models (spatial lag model, spatial error model, and hierarchical linear model [HLM]) and a local model (geographically weighted …
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Diameter Distributions of Juvenile Stands of Loblolly Pine (Pinus taeda L.) with Different Planting Densities
… Methods that quantify the amount of inter-tree spatial dependency in a particular stand were applied. Empirical semivariograms were derived for each plot over all ages to enable spatial trend recognition. Moran's I and Geary's C coefficients were estimated for ground-line diameters from ages 2 …
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Essays on internal migration determinants. From a macro to a micro approach
… is based on a macro-approach. By means of a spatial gravity model, we investigate the determinants of internal migration using bilateral flows across Italian regions in the period 2000-2013. We address the issue of cross-regional dependence arising from the existence of regional spillovers by …
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A deep learning approach to real-time short-term traffic speed prediction with spatial-temporal features
… These methods can efficiently capture the complex spatial dependency on road networks and non-linear traffic conditions. We have adopted the convolutional neural network-based deep learning approach to traffic speed prediction in our setting, based on its capability of handling multi-dimensional data …
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A test structure for the measurement and characterization of layout-induced transistor variation
… structure is designed to study the systematic spatial dependency between transistors in order to determine the impact of different variation sources on transistor characteristics and understand the radius of influence that defines the neighborhood of shapes which play a part in determining the …
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SPATIAL AND TEMPORAL DYNAMICS OF THE CHESAPEAKE BAY SEA NETTLE
… species is mostly due to difficulties collecting spatial information on jellyfish in dynamic coastal ecosystems. Spatial gaps of C. chesapeakei were addressed by applying a multi-scale approach across life stages and within a source-sink context, reflected by the ecology and habitat utilization of …
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Geographical perspectives on international cooperation and conflict
This study is a quantitative and spatial analysis of international cooperation and conflict. Using geographic concepts and spatial analysis, this research revisits two sets of existing research questions 1) UN general assembly voting patterns and 2) the escalation of territorial disputes. Political …
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Responding to Natural Hazards: The Effects of Disaster on Residential Location Decisions and Health Outcomes
… a two-stage estimation process that exploits spatial variation in labor markets, housing markets, and environmental amenities across U.S. metropolitan statistical areas. Results indicate an annual willingness-to-pay of $275 per household for a marginal reduction in the expected number of …
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Models and Methods for Random Fields in Spatial Statistics with Computational Efficiency from Markov Properties
… to a certain SPDE, and is useful for large spatial problems where traditional methods are too computationally intensive to use. A variation of the method using wavelet basis functions is proposed and using a simulation-based study, the wavelet approximations are compared with two of the most …
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A Geospatial Approach for New Perspectives on Satisfaction with Health Services in Malawi
<p>This dissertation explored the spatial pattern of user satisfaction with health services and factors, including policies that potentially explain the variation in the district-level of user satisfaction with health services. Nationwide secondary data was extracted from the 2002 Core Social …
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Measuring spatial and social interdependencies between public schools and the community: City of Cambridge
… structures of social infrastructure, the spatial conditions under which they assume that role has been understudied. This thesis investigates how the relationship between public schools and the surrounding neighborhood may vary depending on the spatial interdependence among their …
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Aircraft Anti-Icing Analysis: Water Droplet Dynamics Under High-Frequency Atomization and Superhydrophobic Effects
… Here, swept frequencies exhibited less spatial dependency on droplet deposition while maintaining atomization rates, volumes, and energy levels comparable to those of single frequencies. Additionally, it explores the effects of combining atomization with a superhydrophobic surface, …
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Explainable AI for Social Good: Applications in Mental Health, Public Health Risk, and Environmental Traceability
… algorithm that fails to learn the inter-task dependency while not particularly focusing on explainability. Therefore, in real-world scenarios, these tools show an increased risk for practical applicability due to their black-box nature, which leads to a lack of intuitive interpretability for …