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 19 of 19 for “"spatial network"”.
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Improving Performance of Spatial Network Queries
Spatial network queries, for example KNN or range, operate on systems where objects are constrained to locations on a network. Current spatial network query algorithms rely on forms of network traversal which have a high complexity proportional to the size of the network making, them poor for large …
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Scalable data analytics techniques for summarizing spatial network-based observations
Summarizing spatial network-based observations (SSNO) entails finding a compact description or representation of large spatial or spatio-temporal datasets. For example, transportation planners and engineers may need to identify road segments that pose risks for pedestrians and require redesign. …
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Design, estimation, and prediction of computer experiments with applications to spatial data
… applied to three real data sets arising from a spatial network of monitoring sites and from the mining industry. For some special covariance structures, a consistent estimator is also constructed to estimate the error variance.
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Spatiotemporal Indexing With the M-Tree
… the M-Tree has been proven as an index for spatial network databases, we have selected it to be enhanced as a spatiotemporal index. We present modifications to the tree which allow trajectory reconstruction with fast insert performance and modifications which allow the tree to be built with …
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Cyclone shelters and cyclone resilient design in coastal areas of Bangladesh
… chapter that zooms in on the issues at five spatial scales, followed by a design chapter that zooms out from proposals for improving shelter site planning to a more comprehensive analysis of the spatial network of shelters, and larger-scale coastal environmental planning and policy. The …
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Examining Movement Dynamics of the Gulf Menhaden Fishery Using an Individual-based Model
… (IBM). The IBM was run under several different spatial restriction regimes, including (1) current regulations in Texas, Louisiana, Mississippi, and Alabama; (2) additional restrictions off the coast of Jackson County, MS; (3) an extension of current regulations to 2.6 km (two miles) from shore; …
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Incorporating Wider Infrastructure Disruption in Urban Flooding Resilience Investments
… integrating hydrological modelling, spatial network analysis, and CI vulnerability assessments to improve flood resilience planning. The study reviews resilience assessment methodologies, highlighting the widespread use of qualitative resilience indicators in policymaking while …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
… microscale thickness and the highly complex spatial network are significant challenges towards quantifying and visualizing the intricate architectures, mechanics, and construction of 3D webs. In this work, we aim to provide a consistent and automated non-destructive in-situ experimental and …
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Tracking Disaster Dynamics for Urban Resilience: Human-Mobility and Semantic Perspectives
… process of resilience, including human mobility, spatial networks, and coupled mobility and sentiment perspectives. In the first, human-mobility perspective, I examine the nuanced impact of a severe winter storm on human mobility patterns and the relationship between perturbed mobility during the …
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Transcription Factor Binding Dynamics and Spatial Co-localization In Human Genome
… however, the relationship between genome spatial organisation and transcription factor binding is not well studied. Using the recently available high resolution Hi-C contact map of human GM12878 lymphoblastoid cells, we investigated computationally the genome-wide spatial co-localization …
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Growing a building particularity as a strategy for upliftment of agriculture towns in South Africa
… of parts. The kit of parts is used to create a spatial connectivity across the town and formulate an urban upliftment scheme. The proposed building serves as supporting infrastructure to the spatial network and culminate the urban, spatial, social and economic schemes. The building is also …
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Understanding Drivers of Deforestation using Games on Spatial Networks
… which agents engage in coupled activities over a spatial network and study a policy intervention to limit illegal deforestation. Firstly, we conduct equilibrium analysis of a game in which each agent decides the production levels of her coupled activities in the presence of network effects. …
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The values of urban design - spatial models
Urban network morphometrics (UNeMos) is a research technique and a design decision aid in urban design. UNeMOS are network science-based configurational metrics of urban morphology that can inform urban designing decision-making, helping designers to discriminate between different 2D and 3D design …
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Cluster damage robustness analysis and space independent community detection in complex networks
… of two very different complex systems using network theory. This multi-disciplinary technique is widely used to model and analyse vastly diverse systems of multiple interacting components, and therefore, it is applied in this thesis to study the complexity of the systems. This complexity is …
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Inequality in Labour Markets
… The second chapter switches to addressing the spatial dimension of inequality, particularly the mechanisms that generate diverging outcomes between regions. The chapter models the individual firm employment responses to local shocks and the contributions these make to driving unequal employment …
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The integration of informal minibus-taxi transport services into formal public transport planning and operations - A data driven approach
… to the understanding of the mode in terms of its spatial extent in its respective service areas. In South Africa, experience has shown that the wholesale replacement of MBTs with scheduled services is an unattainable goal. Instead, planning authorities and researchers have, more recently, shown …
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Firms and the Evolution of Culture and Cooperation
… former element of ‘how’, the main mechanisms are spatial/network selection and group selection; on the latter, direct reciprocity and indirect reciprocity. Using this theory, we collaborate with three organizations to study a workplace safety practice that is based on voluntary cooperation by …
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Personal Big Data
… innovative conceptual model, which builds upon spatial network theory combined with time-geography. The spatio-temporal constraints of time-geography are applied to the network structure in order to create individual spatio-temporal action spaces. This concept is translated into a novel …