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 11 of 11 for “"subspace model"”.
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The subspace model : shape-based compilation for parallel systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Robust learning with low-dimensional structure: theory,algorithms and applications
… that are common in real problems: ?low-rank subspace model? that underlies matrix completion and Robust PCA, and ?union-of-subspace model? that arises in the problem of subspace clustering. In the upcoming chapters, we will present (i) stability of matrix factorization and its consequences in …
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Accelerated J-resolved proton magnetic resonance spectroscopic imaging
… signal excitation, sparse data acquisition and subspace based data processing. More specifically, we first recognize that the high-dimensional J-resolved 1H-MRSI signals reside in a lowdimensional subspace, thereby significantly reducing the degrees-of-freedom of the desired image function. …
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A subspace optimizing data parallel complier
… A new approach to data parallel compilation, the Subspace compilation model, is introduced. This model is based on the idea that the shapes of data objects and how these shapes change represent higher-level performance considerations that the alignment of individual data elements. This model also …
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A subspace approach to accelerated cardiovascular magnetic resonance imaging
… arrhythmias. This dissertation describes a subspace approach to accelerate cardiovascular MRI, freeing cardiac MRI from gating techniques and enabling whole-heart 3D dynamic imaging for multiple simultaneous assessments. This imaging approach comprises developments in image modeling, data …
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Methodologies and Algorithms for Finite Element Analysis of Electromagnetic Devices and Systems
… and fast finite-element-based electromagnetic modeling is considered for integrated and packaged electronic components and systems using enhanced formulations and algorithms. First, efficient and robust formulations and algorithms are presented for two-dimensional waveguide eigenmode analysis, …
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Face recognition under varying illumination, pose and contiguous occlusion
… propose a very simple algorithm, called Nearest-Subspace Patch Matching, which combines a local translational model for deformation due to pose with a linear subspace model for lighting variations. This algorithm gives surprisingly competitive performance for moderate variations in both pose and …
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Nonlinear/electromagnetic co-simulation of microwaves and millimeter-waves links
… harmonic-balance method based on Krylov-subspace model-order reduction to allow the handling of large-size front ends. Different examples of links have been presented: an End-to-End link simulated by making use of an artificial neural network model; the latter allows a fast computation of …
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A subspace approach to high-resolution magnetic resonance spectroscopic imaging
… of MRSI. This thesis work develops a new subspace imaging approach to address these technical challenges to enable fast, high-resolution MRSI with high SNR. The proposed approach, coined SPICE (Spectroscopic Imaging by Exploiting Spatiospectral Correlation), is characterized by using a …
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Subspace estimation for subspace-based magnetic resonance spectroscopic imaging
This Thesis was approved for publication on 2016-04-15 at 14:08.
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Further development of magnetic resonance spectroscopic imaging using subspace-based models
… (SNR). The recent integration of subspace-based models into MRSI has significantly improved this trade-off and demonstrated the potential for high-resolution, high-SNR metabolic mapping at clinically relevant imaging speeds. This work further extends subspace-based MRSI methods …