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Dissertations / Theses on the topic 'Method of neutrosophic factorization'

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Published: 5 June 2025

Last updated: 16 July 2025

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1

Shan, Juan. "A Fully Automatic Segmentation Method for Breast Ultrasound Images." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/905.

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Breast cancer is the second leading cause of death of women worldwide. Accurate lesion boundary detection is important for breast cancer diagnosis. Since many crucial features for discriminating benign and malignant lesions are based on the contour, shape, and texture of the lesion, an accurate segmentation method is essential for a successful diagnosis. Ultrasound is an effective screening tool and primarily useful for differentiating benign and malignant lesions. However, due to inherent speckle noise and low contrast of breast ultrasound imaging, automatic lesion segmentation is still a cha

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2

Suaysom, Natchanon. "Iterative Matrix Factorization Method for Social Media Data Location Prediction." Scholarship @ Claremont, 2018. http://scholarship.claremont.edu/hmc_theses/96.

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Since some of the location of where the users posted their tweets collected by social media company have varied accuracy, and some are missing. We want to use those tweets with highest accuracy to help fill in the data of those tweets with incomplete information. To test our algorithm, we used the sets of social media data from a city, we separated them into training sets, where we know all the information, and the testing sets, where we intentionally pretend to not know the location. One prediction method that was used in (Dukler, Han and Wang, 2016) requires appending one-hot encoding of the

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3

Bucic, Ida. "Pollard's rho method." Thesis, Linnéuniversitetet, Institutionen för matematik (MA), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85886.

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In this work we are going to investigate a factorization method that was invented by John Pollard. It makes possible to factorize medium large integers into a product of prime numbers. We will run a C++ program and test how do different parameters affect the results. There will be a connection drawn between the Pollard's rho method, the Birthday paradox and the Floyd's cycle finding algorithm. In results we will find a polynomial function that has the best effectiveness and performance for Pollard's rho method.

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4

Bondarenko, Oleksandr [Verfasser], and A. [Akademischer Betreuer] Kirsch. "The Factorization Method for Conducting Transmission Conditions / Oleksandr Bondarenko. Betreuer: A. Kirsch." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1102250279/34.

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5

Onay, Oguz Kaan. "Approximate Factorization Using Acdi Method On Hybrid Grids And Parallelization Of The Scheme." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615589/index.pdf.

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In this thesis study, a fast implicit iteration scheme called Alternating Cell Directions Imp licit method is combined with Approximate Factorization scheme. This application aims to offer a mathematically well defined version of the Alternating Cell Directions Implicit Method and increase the accuracy of the iteration scheme that is being used for the numerical solutions of the partial differential equations. The iteration scheme presented here is tested using unsteady diffusion equation, Laplace equation and advection-diffusion equation. The accuracy, convergence character and the sta

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Heumann, Sven [Verfasser], and A. [Akademischer Betreuer] Kirsch. "The Factorization Method for Inverse Scattering from Chiral Media / Sven Heumann. Betreuer: A. Kirsch." Karlsruhe : KIT-Bibliothek, 2012. http://d-nb.info/1020663529/34.

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7

Groetzner, Patrick Hermann [Verfasser], and Mirjam [Akademischer Betreuer] Dür. "A Method for Completely Positive and Nonnegative Matrix Factorization / Patrick Hermann Groetzner ; Betreuer: Mirjam Dür." Trier : Universität Trier, 2018. http://d-nb.info/1197807918/34.

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8

Groetzner, Patrick [Verfasser], and Mirjam [Akademischer Betreuer] Dür. "A Method for Completely Positive and Nonnegative Matrix Factorization / Patrick Hermann Groetzner ; Betreuer: Mirjam Dür." Trier : Universität Trier, 2018. http://d-nb.info/1197807918/34.

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9

Jocas, Aivaras. "Kraštinio uždavinio paprastajai antros eilės diferencialinei lygčiai suvedimas į integralinę lygtį." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120702_123832-53027.

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Baigiamajame darbe nagrinėjama paprastoji antros eilės diferencialinė lygtis. Jos sprendinių gavimui ir analizei naudojamas faktorizacijos metodas – ieškomosios funkcijos skaidymas dauginamaisiais bei kiti tradiciniai paprastųjų diferencialinių lygčių sprendimo metodai: nepriklausomo kintamojo keitimo metodas, konstantų varijavimo metodas.<br>In this work is analyzed second-order differential equation. I use factorization method and other traditional ordinary differential equations approaches as an example: independent variable exchange method, variation of constants method and direct integrat

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Wang, Feng. "Development of A Fast Converging Hybrid Method for Analyzing Three-Dimensional Doubly Periodic Structures." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1376923791.

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11

Stålberg, Erik. "A high order method for simulation of fluid flow in complex geometries." Licentiate thesis, KTH, Mechanics, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-322.

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<p>A numerical high order difference method is developed for solution of the incompressible Navier-Stokes equations. The solution is determined on a staggered curvilinear grid in two dimensions and by a Fourier expansion in the third dimension. The description in curvilinear body-fitted coordinates is obtained by an orthogonal mapping of the equations to a rectangular grid where space derivatives are determined by compact fourth order approximations. The time derivative is discretized with a second order backward difference method in a semi-implicit scheme, where the nonlinear terms are linear

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12

Hemann, Joshua G. "Assessing Positive Matrix Factorization model fit: A new method to estimate uncertainty and bias in factor contributions at the daily time scale." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447682.

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Gubinskytė, Silva. "Antrosios eilės diferencialinės lygties kraštinio uždavinio sprendinio struktūros priklausomybė nuo potencialo." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140716_142533-87588.

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14

Cantane, Daniela Renata. "Contribuição da atualização da decomposição LU no metodo Simplex." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260212.

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Orientadores: Aurelio Ribeiro Leite de Oliveira, Christiano Lyra Filho<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-14T10:57:39Z (GMT). No. of bitstreams: 1 Cantane_DanielaRenata.pdf: 1253133 bytes, checksum: 870b16a2b9360f77ebd88f50491d181c (MD5) Previous issue date: 2009<br>Resumo: A solução eficiente de sistemas lineares é fundamental em problemas de otimização linear e o primeiro método a obter êxito nesta classe de problemas foi o método Simplex. Com o objetivo de desenvolver alternativas

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15

Ahmed, Nisar. "Implicit restart schemes for Krylov subspace model reduction methods." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340535.

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Fathollahzadeh, Pedram. "Improving Food Recipe Suggestions with Hierarchical Classification of Food Recipes." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224782.

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Making personalized recommendations has become a central part in many platforms, and is continuing to grow with more access to massive amounts of data online. Giving recommendations based on the interests of the individual, rather than recommending items that are popular, increases the user experience and can potentially attract more customers when done right. In order to make personalized recommendations, many platforms resort to machine learning algorithms. In the context of food recipes, these machine learning algorithms tend to consist of hybrid methods between collaborative filtering, con

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Silva, Lino Marcos da 1978. "Modificações na fatoração controlada de Cholesky para acelerar o precondicionamento de sistemas lineares no contexto de pontos interiores." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/306743.

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Orientador: Aurelio Ribeiro Leite de Oliveira<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação Científica<br>Made available in DSpace on 2018-08-25T19:56:24Z (GMT). No. of bitstreams: 1 Silva_LinoMarcosda_D.pdf: 2297954 bytes, checksum: 2213b987c2753edec9152998b30b7c74 (MD5) Previous issue date: 2014<br>Resumo: O método de pontos interiores para programação linear resolve em poucas iterações problemas de grande porte. No entanto, requer a cada iteração a resolução de dois sistemas lineares, os quais possuem a mesma matriz de coeficien

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Johansson, Angela. "Distributed System for Factorisation of Large Numbers." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1883.

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<p>This thesis aims at implementing methods for factorisation of large numbers. Seeing that there is no deterministic algorithm for finding the prime factors of a given number, the task proves rather difficult. Luckily, there have been developed some effective probabilistic methods since the invention of the computer so that it is now possible to factor numbers having about 200 decimal digits. This however consumes a large amount of resources and therefore, virtually all new factorisations are achieved using the combined power of many computers in a distributed system. </p><p>The nature of the

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Mohamad, Habib. "Développement de la méthode différentielle associée à la Fast Fourier Factorization pour la photonique : étude de réseaux diffractifs complexes et modélisation de structures en optique intégrée." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALT032.

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Pour concevoir au mieux des dispositifs photoniques, il est important d’avoir des outils de modélisation fiables et efficaces. En effet si le quadrillage de paramètres technologiques est envisageable pour des dispositifs simples, son coût en nombre de tests devient rapidement un frein à l’optimisation de structures. Il devient donc indispensable de disposer de simulations totalement vectorielles, avec des matériaux à indices de réfraction complexes, de garantir la prise en compte de l’ensemble des modes de propagation (modes guidés, rayonnés et évanescents), bidirectionnelles … La simulation d

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Breitenbacher, Dominik. "Paralelizace faktorizace celých čísel z pohledu lámání RSA." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-234905.

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This paper follows up the factorization of integers. Factorization is the most popular and used method for RSA cryptoanalysis. The SIQS was chosen as a factorization method that will be used in this paper. Although SIQS is the fastest method (up to 100 digits), it can't be effectively computed at polynomial time, so it's needed to look up for options, how to speed up the method as much as possible. One of the possible ways is paralelization. In this case OpenMP was used. Other possible way is optimalization. The goal of this paper is also to show, how easily is possible to use paralelizion and

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Nguyen, Dinh Liem. "Spectral Methods for Direct and Inverse Scattering from Periodic Structures." Phd thesis, Ecole Polytechnique X, 2012. http://tel.archives-ouvertes.fr/tel-00771746.

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The main topic of the thesis are inverse scattering problems of electromagnetic waves from periodic structures. We study first the direct problem and its numerical resolution using volume integral equation methods with a focus on the case of strongly singular integral operators and discontinuous coefficients. In a second investigation of the direct problem we study conditions on the material parameters under which well-posedness is ensured for all positive wave numbers. Such conditions exclude the existence of guided waves. The considered inverse scattering problem is related to shape identifi

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Dokoupil, Jakub. "Adaptivní regulátory s principy umělé inteligence a jejich porovnání s klasickými metodami identifikace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218008.

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This piece of work deals with a philosophy of design adaptive controller, which is based on knowledge of mathematical model controlled plant. This master thesis is focused on closed-loop on-line parametric identification methods. An estimation of model´s parametres is solved by two main concepts: recursive leastsquare algorithms and neural estimators. In case of least-squares algorithm the strategy of preventing the typical problems are solved here. For instance numerical stability, accurecy and restricted forgetting. Back Propagation and Marquardt- Levenberg algorithm were choosen to represen

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Archid, Atika. "Méthodes par blocs adaptées aux matrices structurées et au calcul du pseudo-inverse." Thesis, Littoral, 2013. http://www.theses.fr/2013DUNK0394/document.

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Nous nous intéressons dans cette thèse, à l'étude de certaines méthodes numériques de type krylov dans le cas symplectique, en utilisant la technique de blocs. Ces méthodes, contrairement aux méthodes classiques, permettent à la matrice réduite de conserver la structure Hamiltonienne ou anti-Hamiltonienne ou encore symplectique d'une matrice donnée. Parmi ces méthodes, nous nous sommes intéressés à la méthodes d'Arnoldi symplectique par bloc que nous appelons aussi bloc J-Arnoldi. Notre but essentiel est d’étudier cette méthode de façon théorique et numérique, sur la nouvelle structure du K-mo

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Buchanan, Aeron Morgan. "Tracking non-rigid objects in video." Thesis, University of Oxford, 2008. http://ora.ox.ac.uk/objects/uuid:82efb277-abc9-4725-9506-5d114a83bd96.

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Video is a sequence of 2D images of the 3D world generated by a camera. As the camera moves relative to the real scene and elements of that scene themselves move, correlated frame-to-frame changes in the video images are induced. Humans easily identify such changes as scene motion and can readily assess attempts to quantify it. For a machine, the identification of the 2D frame-to-frame motion is difficult. This problem is addressed by the computer vision process of tracking. Tracking underpins the solution to the problem of augmenting general video sequences with artificial imagery, a staple t

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Kim, Jingu. "Nonnegative matrix and tensor factorizations, least squares problems, and applications." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42909.

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Nonnegative matrix factorization (NMF) is a useful dimension reduction method that has been investigated and applied in various areas. NMF is considered for high-dimensional data in which each element has a nonnegative value, and it provides a low-rank approximation formed by factors whose elements are also nonnegative. The nonnegativity constraints imposed on the low-rank factors not only enable natural interpretation but also reveal the hidden structure of data. Extending the benefits of NMF to multidimensional arrays, nonnegative tensor factorization (NTF) has been shown to be successful in

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Nguyen, Dinh Liem. "Spectral Methods for Direct and Inverse Scattering from Periodic Structures." Phd thesis, Palaiseau, Ecole polytechnique, 2012. https://theses.hal.science/docs/00/77/17/46/PDF/thesis.pdf56).

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The main topic of the thesis are inverse scattering problems of electromagnetic waves from periodic structures. We study first the direct problem and its numerical resolution using volume integral equation methods with a focus on the case of strongly singular integral operators and discontinuous coefficients. In a second investigation of the direct problem we study conditions on the material parameters under which well-posedness is ensured for all positive wave numbers. Such conditions exclude the existence of guided waves. The considered inverse scattering problem is related to shape identifi

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García, Ariza Alexis Paolo. "Modelling and experimental analysis of frequency dependent MIMO channels." Doctoral thesis, Universitat Politècnica de València, 2009. http://hdl.handle.net/10251/6563.

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La integración de tecnologías de ulta-wideband, radio-cognitiva y MIMO representa una herramienta podersoa para mejorar la eficiencia espectral de los sistemas de comunicación inalámbricos. En esta dirección, nuevas estrategias para el modelado de canales MIMO y su caracterización se hacen necesarias si se desea investigar cómo la frecuencia central y el acho de banda afectan el desempeño de los sistemas MIMO. Investigaciones preliminares han enfocado menos atención en cómo estos parámetros afectan las características del canal MIMO. Se presenta una caracterización del canal MIMO en función de

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Gaidamour, Jérémie. "Conception d’un solveur linéaire creux parallèle hybride direct-itératif." Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13904/document.

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Cette thèse présente une méthode de résolution parallèle de systèmes linéaires creux qui combine efficacement les techniques de résolutions directes et itératives en utilisant une approche de type complément de Schur. Nous construisons une décomposition de domaine. L'intérieur des sous-domaines est éliminé de manière directe pour se ramener à un problème sur l'interface. Ce problème est résolu grâce à une méthode itérative préconditionnée par une factorisation incomplète. Un réordonnancement de l'interface permet la construction d'un préconditionneur global du complément de Schur. Des algorith

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Potts, Daniel, and Manfred Tasche. "Parameter estimation for nonincreasing exponential sums by Prony-like methods." Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-86476.

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For noiseless sampled data, we describe the close connections between Prony--like methods, namely the classical Prony method, the matrix pencil method and the ESPRIT method. Further we present a new efficient algorithm of matrix pencil factorization based on QR decomposition of a rectangular Hankel matrix. The algorithms of parameter estimation are also applied to sparse Fourier approximation and nonlinear approximation.

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Pham, Viet Nga. "Programmation DC et DCA pour l'optimisation non convexe/optimisation globale en variables mixtes entières : Codes et Applications." Phd thesis, INSA de Rouen, 2013. http://tel.archives-ouvertes.fr/tel-00833570.

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Basés sur les outils théoriques et algorithmiques de la programmation DC et DCA, les travaux de recherche dans cette thèse portent sur les approches locales et globales pour l'optimisation non convexe et l'optimisation globale en variables mixtes entières. La thèse comporte 5 chapitres. Le premier chapitre présente les fondements de la programmation DC et DCA, et techniques de Séparation et Evaluation (B&B) (utilisant la technique de relaxation DC pour le calcul des bornes inférieures de la valeur optimale) pour l'optimisation globale. Y figure aussi des résultats concernant la pénalisation ex

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Estecahandy, Elodie. "Contribution à l'analyse mathématique et à la résolution numérique d'un problème inverse de scattering élasto-acoustique." Phd thesis, Université de Pau et des Pays de l'Adour, 2013. http://tel.archives-ouvertes.fr/tel-00880628.

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La détermination de la forme d'un obstacle élastique immergé dans un milieu fluide à partir de mesures du champ d'onde diffracté est un problème d'un vif intérêt dans de nombreux domaines tels que le sonar, l'exploration géophysique et l'imagerie médicale. A cause de son caractère non-linéaire et mal posé, ce problème inverse de l'obstacle (IOP) est très difficile à résoudre, particulièrement d'un point de vue numérique. De plus, son étude requiert la compréhension de la théorie du problème de diffraction direct (DP) associé, et la maîtrise des méthodes de résolution correspondantes. Le travai

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謝先皓. "Matrix Factorization Method for the Immersed Boundary problem." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/42764060404517226300.

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碩士<br>國立交通大學<br>應用數學系所<br>96<br>The immersed boundary method is a model to simulate a viscous incompressible fluid with immersed massless boundary. It comes from the Navier-Stokes equation of viscous incompressible fluid with the interaction term between the immersed boundary and the fluid. The matrix factorization method is a formulation of immersed boundary method, and the idea is the fractional step method for Navier-Stokes equation. The immersed boundary problem could be factorized to three steps, and the conjugate gradient method can be applied to solve the first and second step. In this

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Juan, Yu-Chin, and 阮毓欽. "A Fast Parallel Stochastic Gradient Method for Matrix Factorization in Shared Memory Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/32077403329819649481.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>102<br>Matrix factorization is known to be an effective method for recommender systems that are given only the ratings from users to items. Currently, stochastic gradient (SG) method is one of the most popular algorithms for matrix factorization. However, as a sequential approach, SG is difficult to be parallelized for handling web-scale problems. In this thesis, we develop a fast parallel SG method, FPSG, for shared memory systems. By dramatically reducing the cache-miss rate and carefully addressing the load balance of threads, FPSG is more efficient than state-of

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Bai, Guo-Jhen, and 白國臻. "Predicting User's Browsing Tendency During Holidays by Matrix Factorization based Multi-objective Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3ank36.

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碩士<br>國立中央大學<br>資訊工程學系<br>106<br>It is reported that sales by e-commerce companies were greater than usual during shopping holidays and festivals. However, based on users’ browsing logs, we found that not all users visit e-commerce websites more often than they normally do during holidays. Therefore, the increase in sales may come from the purchase behaviors of a small number of users. If the e-commerce companies can systematically assess and analyze user behaviors, they might be able to apply customized marketing method to maximize the effectiveness of their sales strategies. This study prop

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Ming-Horng, Lin, and 林明宏. "Real-Time Estimation ARMA Model Parameter via Maximum Likelihood Method and Adaptive Spectral Factorization." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/70733199277168445029.

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碩士<br>義守大學<br>電子工程學系<br>88<br>The ability to generate rational models of time series plays an important role in such applications as system identification, adaptive filtering, spectral estimation, digital control, and signal processing. An algorithm is derived for real-time estimation of the unknown parameters of ARMA models using maximum likelihood method and adaptive spectral factorization method. Cadzow[1] adopt the extended Yule Walker equation for estimation of AR parameters. Then compute the residual process and its autocorrelation to form the spectral density function. And by the spect

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"Improving the Execution Time of Large System Simulations." Master's thesis, 2012. http://hdl.handle.net/2286/R.I.15851.

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abstract: Today, the electric power system faces new challenges from rapid developing technology and the growing concern about environmental problems. The future of the power system under these new challenges needs to be planned and studied. However, due to the high degree of computational complexity of the optimization problem, conducting a system planning study which takes into account the market structure and environmental constraints on a large-scale power system is computationally taxing. To improve the execution time of large system simulations, such as the system planning study, two pos

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Pai, Nithish. "A GPU Accelerated Tensor Spectral Method for Subspace Clustering." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2837.

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In this thesis we consider the problem of clustering the data lying in a union of subspaces using spectral methods. Though the data generated may have high dimensionality, in many of the applications, such as motion segmentation and illumination invariant face clustering, the data resides in a union of subspaces having small dimensions. Furthermore, for a number of classification and inference problems, it is often useful to identify these subspaces and work with data in this smaller dimensional manifold. If the observations in each cluster were to be distributed around a centric, applying spe

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Pai, Nithish. "A GPU Accelerated Tensor Spectral Method for Subspace Clustering." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2837.

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In this thesis we consider the problem of clustering the data lying in a union of subspaces using spectral methods. Though the data generated may have high dimensionality, in many of the applications, such as motion segmentation and illumination invariant face clustering, the data resides in a union of subspaces having small dimensions. Furthermore, for a number of classification and inference problems, it is often useful to identify these subspaces and work with data in this smaller dimensional manifold. If the observations in each cluster were to be distributed around a centric, applying spe

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DULINA, ANASTASIIA. "Multivariate analysis in the study of the chemical processes." Doctoral thesis, 2019. http://hdl.handle.net/11573/1348225.

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The classical problem of the determination of the spectral components from a data set is very often a badly conditioned problem without univocal solutions. Very often one deals with experimental data which are a superposition, or mixture, of the pure spectra of the individual components and their associated proportions. When dealing with evolving systems such as chemical reactions several compounds are coexisting and if one collects UV-Vis or any other kind of absorption spectra they will be the overimposition of the singles spectra associated with the chemical species present in the reaction

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Tsiporin, Viktor. "Charakterisierung eines Gebiets durch Spektraldaten eines Dirichletproblems zur Stokesgleichnung." Doctoral thesis, 2004. http://hdl.handle.net/11858/00-1735-0000-0006-B3FA-F.

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