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 989 for “"descent"”.
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On sparse mirror descent
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Distributed Method to Optimal Profile Descent
… ground automation tools for Optimal Profile Descent (OPD) procedures utilize path stretching and speed profile change to maintain proper merging and spacing requirements at high traffic terminal area. However, low predictability of aircraft's vertical profile and path deviation during decent …
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Learning distributions with Particle Mirror Descent
… estimate posterior distribution, Particle Mirror Descent is appealing for its simplicity and flexibility. In this thesis we explore the applications of Particle Mirror Descent in both supervised and unsupervised learning. In the general classification problem with a parametric discriminative …
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Metagradient Descent: Differentiating Large-Scale Training
… using metagradients. With metagradient descent (MGD), we greatly improve on existing dataset selection methods, outperform accuracy-degrading data poisoning attacks by an order of magnitude, and automatically find competitive learning rate schedules.
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Lunar descent using sequential engine shutdown
… is introduced and its application to lunar descent is motivated. The concept calls for the utilization of multiple fixed thrust engines in place of a single continuously throttleable engine. Downrange position control is provided by properly timed engine shutdowns. The principle advantage …
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Descent Systems, Eulerian Polynomials and Toric Varieties
… count permutations in S_n by their number of descents, give the h-polynomial/h-vector of the simple polytopes known as permutohedra, the convex hull of the Sn -orbit for a generic weight in the weight lattice of Sn . Therefore the Eulerian polynomials give the Betti numbers for certain smooth …
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Success Stories of Students of Mexican Descent
… academically successful students of Mexican descent. The goal of this study was to give a counter to the stereotypical deficit view of Hispanic students in the eyes of teachers, parents, and other students.</p> <p>The participants were three high school students of Mexican descent attending …
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Fracture optimization based on gradient descent methodology
… selected as the target function and the gradient descent methodology is adopted as the optimizer. Relying on the gradient information, gradient descent searches for the optimal solution along the steepest decent direction. A comprehensive reservoir simulator, MSFLOW, with gas adsorption/desorption …
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Descent and Picard group of Q(2)
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Coverings and Descent Theory of Finite Spaces
… the fundamental group of that space. Since some descent theory is necessary for categorical Galois theory, this thesis also contains an account of some of the descent theory of finite topological spaces. The reader is assumed to know the basics of category theory, but no descent theory or …
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GDSVD: Scalable k-SVD via Gradient Descent
We show that a gradient-descent with a simple, universal rule for step-size selection provably finds k-SVD, i.e., the k ≥ 1 largest singular values and corresponding vectors, of any matrix, despite nonconvexity. There has been substantial progress towards this in the past few years where existing …
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The ancestral descent of important Hampshire sheep
The ram C-1659 is the sire of more outstanding winners at the International Livestock Exposition from 1913 to 1938 than any other ram. Blendworth Herriard 45215, the sire of C-1659, is the most important sire of ewes the dams of winners at the same show. Concentrations in varying proportions of the …
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Hybrid Distributed Stochastic Gradient Descent for Federated Learning
… the Hybrid Distributed Stochastic Gradient Descent (Hybrid DSGD), a training scheme for federated learning which utilizes the advantages of both digital and analog transmissions to reduce communication overhead and latency. We demonstrate why the conventional analog-based transmission …
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Ascent, descent, nullity and defect of linear operators
… linear operators on the one hand, and ascent and descent on the other, and the relationships between these concepts. These quantities are of considerable use in the discussion of linear operators, e.g. compact operators.
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The Faust Theme and The Descent Into Hell
Made available in DSpace on 2014-12-11T22:35:24Z (GMT). No. of bitstreams: 1 7212099.pdf: 6707436 bytes, checksum: 9580807a39ef3c63dd8198a1f94a676c (MD5) Previous issue date: 1971
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Efficient coordinate descent for ranking with domination loss
We define a new batch coordinate-descent ranking algorithm based on a domination loss, which is designed to rank a small number of positive examples above all negatives, with a large penalty on false positives. Its objective is to learn a linear ranking function for a query with labeled training …
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The Regenerative Descent in The Works of Nathaniel Hawthorne
Made available in DSpace on 2014-12-10T19:35:18Z (GMT). No. of bitstreams: 1 7317572.pdf: 10749216 bytes, checksum: d88e8bdc1ab357bb8bc4d80b008e1a8c (MD5) Previous issue date: 1973
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Trajectory Specification to Support High-Throughput Continuous Descent Approaches
Continuous descent approaches (CDAs) have demonstrated the ability to reduce aircraft fuel burn and noise, while trajectory-based operations (TBO) have been shown to improve the predictability and throughput of aircraft flows. Prior work has recognized the difficulty of implementing CDAs in …
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