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.
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Showing 1 to 20 of 832 for “"Spatio-temporal."”.
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Spatio-temporal tomographic imaging
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Spatio-temporal circuits for imaging sensors
The first and second generations of infrared detectors—developed from the 1950s to the 1990s—were dominated by single pixel, linear, and staring small format, containing from 1 Kpixels to 100 Kpixels. In the past decade, the third-generation systems presented (a) large format (1 Mpixels to 16 …
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Algorithms for Analyzing Spatio-Temporal Data
<p>In today's age, huge data sets are becoming ubiquitous. In addition to their size, most of these data sets are often noisy, have outliers, and are incomplete. Hence, analyzing such data is challenging. We look at applying geometric techniques to tackle some of these challenges, with an emphasis …
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A two channel spatio-temporal encoder
Thesis (B.S.)-Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.
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Dynamic Spatio-Temporal Graph Convolutional Networks
Spatio-temporal modeling is an essential lens to understand many real-world phenomena from traffic [20] [10] to epidemiology [12]. Although forecasting time series is an exceptionally well-studied problem, recent years have seen impressive gains in the performance of graph learning as a paradigm …
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Spatio-temporal dynamics before population collapse
… direct observation of critical slowing down in spatio-temporal dynamics before population collapse. In the first project, we mapped the bifurcation diagram experimentally and found that the populations became more vulnerable to disturbance closer to the tipping point. Fluctuations of population …
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A Spatio-Temporal Data Model for Zoning
Planning departments are besieged with temporal/historical information. While for many institutions historical information can be relegated to archives, planning departments have a constant need to access and query their historical information, particularly their historical spatial information such …
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Spatio-temporal adaptive algorithm for reacting flows
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Spatio-temporal data fusion in cerebral angiography
… the two classes of data. In addition to the spatio-temporal data fusion algorithm, three new algorithms are presented: a single pass groupwise registration algorithm for registering the time series, a 2D-3D registration algorithm for registering the time series with respect to the 3D volume, …
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Spatio-temporal analysis in functional brain imaging
… accuracy of source localization by incorporating spatio-temporal models into the reconstruction procedure. First, we introduce a novel method for current source estimation, which we call the l₁l₂-norm source estimator. The underlying model captures the sparseness of the active areas in space while …
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Robust Prediction of Large Spatio-Temporal Datasets
… and efficient design of Student-t based Robust Spatio-Temporal Prediction, namely, St-RSTP, to provide estimation based on observations over spatio-temporal neighbors. It is crucial to many applications in geographical information systems, medical imaging, urban planning, economy study, and …
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Spatio-Temporal Connectivity in Dynamic Tropical Fragmented Landscapes
… of the effects of land-use intensification on spatio-temporal dynamics and connectivity; and (iii) the quantification of potential drivers of these changes in the spatial dynamics. In the first part of my thesis, I developed a graph-theoretical method that incorporates the spatial dynamics of …
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A Spatio-temporal Phylogenetic Approach to Community Ecology
… influence species at different spatial and temporal scales. To examine the contribution of both evolutionary and ecological processes, ecologists often measure the phylogenetic relationships between interacting species. However since various processes drive species assembly at different …
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DENSITY BASED FRAMEWORKS FOR SPATIO-TEMPORAL CHANGE ANALYSIS
… tool in data mining. However, the development of spatiotemporal data mining techniques based on density estimation functions, particularly for change analysis, is still in its infancy. To address the need for more robust and versatile data analysis tools, density-based frameworks for …
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Bayesian networks for spatio-temporal integrated catchment assessment
In this thesis, a methodology for integrated catchment water resources assessment using Bayesian Networks was developed. A custom made software application that combines Bayesian Networks with GIS was used to facilitate data pre-processing and spatial modelling. Dynamic Bayesian Networks were …
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