Log in

Relevant bibliographies by topics / Linear classification methods / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Linear classification methods.

Dissertations / Theses on the topic 'Linear classification methods'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Linear classification methods.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Shin, Dongcheol. "Evaluation of Methods for Improving Classifying Cyclone Performance." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/42679.

Full text

Abstract:

Most mineral and coal processing plants are forced to size their particulate streams in order to maximize the efficiency of their unit operations. Classifiers are generally considered to be more practical than screens for fine sizing, but the separation efficiency decreases dramatically for particles smaller than approximately 150 μm. In addition, classifiers commonly suffer from bypass, which occurs when a portion of the ultrafine particles (slimes) are misplaced by hydraulic carryover into the oversize product. The unwanted misplacement can have a large adverse impact on downstream sepa

APA, Harvard, Vancouver, ISO, and other styles

2

Ernst, Oliver G. "Minimal and orthogonal residual methods and their generalizations for solving linear operator equations." Doctoral thesis, [S.l. : s.n.], 2000. https://tubaf.qucosa.de/id/qucosa%3A22355.

Full text

Abstract:

This thesis is concerned with the solution of linear operator equations by projection methods known as minimal residual (MR) and orthogonal residual (OR) methods. We begin with a rather abstract framework of approximation by orthogonal and oblique projection in Hilbert space. When these approximation schemes are applied to sequences of nested spaces, with a simple requirement relating trial and test spaces in case of the OR method, one can derive at this rather general level the basic relations which have been proved for many specific Krylov subspace methods for solving linear systems of equat

APA, Harvard, Vancouver, ISO, and other styles

3

Louche, Ugo. "From confusion noise to active learning : playing on label availability in linear classification problems." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4025/document.

Full text

Abstract:

Les travaux présentés dans cette thèse relèvent de l'étude des méthodes de classification linéaires, c'est à dire l'étude de méthodes ayant pour but la catégorisation de données en différents groupes à partir d'un jeu d'exemples, préalablement étiquetés, disponible en amont et appelés ensemble d'apprentissage. En pratique, l'acquisition d'un tel ensemble d'apprentissage peut être difficile et/ou couteux, la catégorisation d'un exemple étant de fait plus ardu que l'obtention de dudit exemple. Cette disparité entre la disponibilité des données et notre capacité à constituer un ensemble d'apprent

APA, Harvard, Vancouver, ISO, and other styles

4

Baur, Ulrike, Christopher Beattie, Peter Benner, and Serkan Gugercin. "Interpolatory Projection Methods for Parameterized Model Reduction." Universitätsbibliothek Chemnitz, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-201000011.

Full text

Abstract:

We provide a unifying projection-based framework for structure-preserving interpolatory model reduction of parameterized linear dynamical systems, i.e., systems having a structured dependence on parameters that we wish to retain in the reduced-order model. The parameter dependence may be linear or nonlinear and is retained in the reduced-order model. Moreover, we are able to give conditions under which the gradient and Hessian of the system response with respect to the system parameters is matched in the reduced-order model. We provide a systematic approach built on established interpolatory

APA, Harvard, Vancouver, ISO, and other styles

5

Zhong, Xiao. "A study of several statistical methods for classification with application to microbial source tracking." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0430104-155106/.

Full text

Abstract:

Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: classification; k-nearest-neighbor (k-n-n); neural networks; linear discriminant analysis (LDA); support vector machines; microbial source tracking (MST); quadratic discriminant analysis (QDA); logistic regression. Includes bibliographical references (p. 59-61).

APA, Harvard, Vancouver, ISO, and other styles

6

Jung, Michael, and Todor D. Todorov. "On the Convergence Factor in Multilevel Methods for Solving 3D Elasticity Problems." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200601510.

Full text

Abstract:

The constant gamma in the strengthened Cauchy-Bunyakowskii-Schwarz inequality is a basic tool for constructing of two-level and multilevel preconditioning matrices. Therefore many authors consider estimates or computations of this quantity. In this paper the bilinear form arising from 3D linear elasticity problems is considered on a polyhedron. The cosine of the abstract angle between multilevel finite element subspaces is computed by a spectral analysis of a general eigenvalue problem. Octasection and bisection approaches are used for refining the triangulations. Tetrahedron, pentahedron and

APA, Harvard, Vancouver, ISO, and other styles

7

Bylesjö, Max. "Latent variable based computational methods for applications in life sciences : Analysis and integration of omics data sets." Doctoral thesis, Umeå universitet, Kemi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1616.

Full text

Abstract:

With the increasing availability of high-throughput systems for parallel monitoring of multiple variables, e.g. levels of large numbers of transcripts in functional genomics experiments, massive amounts of data are being collected even from single experiments. Extracting useful information from such systems is a non-trivial task that requires powerful computational methods to identify common trends and to help detect the underlying biological patterns. This thesis deals with the general computational problems of classifying and integrating high-dimensional empirical data using a latent variabl

APA, Harvard, Vancouver, ISO, and other styles

8

Montagner, Igor dos Santos. "W-operator learning using linear models for both gray-level and binary inputs." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-21082017-111455/.

Full text

Abstract:

Image Processing techniques can be used to solve a broad range of problems, such as medical imaging, document processing and object segmentation. Image operators are usually built by combining basic image operators and tuning their parameters. This requires both experience in Image Processing and trial-and-error to get the best combination of parameters. An alternative approach to design image operators is to estimate them from pairs of training images containing examples of the expected input and their processed versions. By restricting the learned operators to those that are translation inva

APA, Harvard, Vancouver, ISO, and other styles

9

Tozlu, Ceren. "Classification et modélisation statistique intégrant des données cliniques et d’imagerie par résonance magnétique conventionnelle et avancée." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1043/document.

Full text

Abstract:

L'accident vasculaire cérébral et la sclérose en plaques figurent parmi les maladies neurologiques les plus destructrices du système nerveux central. L'accident vasculaire cérébral est la deuxième cause de décès et la principale cause de handicap chez l'adulte dans le monde alors que la sclérose en plaques est la maladie neurologique non traumatique la plus fréquente chez l'adulte jeune. L'imagerie par résonance magnétique est un outil important pour distinguer le tissu cérébral sain du tissu pathologique à des fins de diagnostic, de suivi de la maladie, et de prise de décision pour un traitem

APA, Harvard, Vancouver, ISO, and other styles

10

Thess, M. "Parallel Multilevel Preconditioners for Problems of Thin Smooth Shells." Universitätsbibliothek Chemnitz, 1998. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-199801416.

Full text

Abstract:

In the last years multilevel preconditioners like BPX became more and more popular for solving second-order elliptic finite element discretizations by iterative methods. P. Oswald has adapted these methods for discretizations of the fourth order biharmonic problem by rectangular conforming Bogner-Fox-Schmidt elements and nonconforming Adini elements and has derived optimal estimates for the condition numbers of the preconditioned linear systems. In this paper we generalize the results from Oswald to the construction of BPX and Multilevel Diagonal Scaling (MDS-BPX) preconditioners for the elast

APA, Harvard, Vancouver, ISO, and other styles

11

Hu, Wenbiao. "Applications of Spatio-temporal Analytical Methods in Surveillance of Ross River Virus Disease." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16109/.

Full text

Abstract:

The incidence of many arboviral diseases is largely associated with social and environmental conditions. Ross River virus (RRV) is the most prevalent arboviral disease in Australia. It has long been recognised that the transmission pattern of RRV is sensitive to socio-ecological factors including climate variation, population movement, mosquito-density and vegetation types. This study aimed to assess the relationships between socio-environmental variability and the transmission of RRV using spatio-temporal analytic methods. Computerised data files of daily RRV disease cases and daily climatic

APA, Harvard, Vancouver, ISO, and other styles

12

Kurujyibwami, Célestin. "Group classification of linear Schrödinger equations by the algebraic method." Licentiate thesis, Linköpings universitet, Matematiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-125136.

Full text

Abstract:

This thesis is devoted to the group classification of linear Schrödinger equations. The study of Lie symmetries of such equations was initiated more than 40 years ago using the classical Lie infinitesimal method for specific types of real-valued potentials. In first papers on this subject, most attention was paid to dynamical transformations, which necessarily change the time and space variables. This is why phase translations were missed. Later, the study of Lie symmetries was extended to nonlinear Schrödinger equations. At the same time, the group classification problem for the class of line

APA, Harvard, Vancouver, ISO, and other styles

13

Diesner, Stefan. "Alternative leistungselektronische Schaltungskonzepte im PKW-Innenraum: Entwurf, Optimierung und Bewertung." Doctoral thesis, Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A23962.

Full text

Abstract:

Elektronische und elektrische Systeme stellen seit einigen Jahren einen zunehmenden Anteil an den Gesamtproduktionskosten von Personenkraftfahrzeugen. Laut Prognosen wird sich diese Entwicklung zwar abschwächen, jedoch wird der Wertschöpfungsanteil der Elektronik am Fahrzeug weiter zunehmen. Die hier vorliegende Arbeit beschäftigt sich mit leistungselektronischen Subsystemen in PKW, die aufgrund der benötigten Chipfläche der Halbleiter kostenintensiv sind. Ziel der Arbeit ist es, Strukturen zu entwickeln und zu untersuchen, die es ermöglichen, mehrere Verbraucher in einer solchen Struktur zu b

APA, Harvard, Vancouver, ISO, and other styles

14

Solomon, Mary Joanna. "Multivariate Analysis of Korean Pop Music Audio Features." Bowling Green State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1617105874719868.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Simmel, Martin. "Numerical solution of the stochastic collection equation: comparison of the linear discrete method and the method of moments." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 17 = Meteorologische Arbeiten aus Leipzig ; 5 (2000), S. 26-34, 2001. https://ul.qucosa.de/id/qucosa%3A15197.

Full text

Abstract:

The Linear Discrete Method (LDM; SIMMEL 2000; SIMMEL ET AL. 2000) is used to solve the Stochastic Collection Equation (SCE) numerically. Comparisons are made to the Method of Moments (MOM; TzIVION ET AL. 1999) which is suggested as a reference for numerical solutions of the SCE. Simulations for both methods are shown for the GoLOVIN kernel (for which an analytical solution is available) and the hydrodynamic kernel after LONG (1974) as it is used by TZIVION ET AL. (1999). Different bin resolutions are investigated and the simulation times are compared. In addition, LDM simulations using the hyd

APA, Harvard, Vancouver, ISO, and other styles

16

Gooch, Steven R. "A METHOD FOR NON-INVASIVE, AUTOMATED BEHAVIOR CLASSIFICATION IN MICE, USING PIEZOELECTRIC PRESSURE SENSORS." UKnowledge, 2014. http://uknowledge.uky.edu/ece_etds/56.

Full text

Abstract:

While all mammals sleep, the functions and implications of sleep are not well understood, and are a strong area of investigation in the research community. Mice are utilized in many sleep studies, with electroencephalography (EEG) signals widely used for data acquisition and analysis. However, since EEG electrodes must be surgically implanted in the mice, the method is high cost and time intensive. This work presents an extension of a previously researched high throughput, low cost, non-invasive method for mouse behavior detection and classification. A novel hierarchical classifier is presente

APA, Harvard, Vancouver, ISO, and other styles

17

Meyer, Arnd, and Rolf Springer. "Basics of Linear Thermoelasticity." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-160178.

Full text

Abstract:

In this preprint, we look onto the theory of linear thermoelasticity. At the beginning, this theory is shortly repeated and afterwards applied to transversely isotropic materials. Then, the corresponding weak formulation is derived, which is the starting point for a FE-discretisation. In the last part, we explain how we added this material behaviour to an adaptive Finite-Element-code and show some numerical results.

APA, Harvard, Vancouver, ISO, and other styles

18

Simeitis, Sven D. "Vergleich von Simulationen mittels Pro/MECHANICA und ANSYS." Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-68443.

Full text

Abstract:

Gegenstand dieser Arbeit ist es, Simulationsergebnisse von Pro/MECHANICA und ANSYS zu vergleichen, um somit einen Hinweis auf die Qualität der Berechnungsergebnisse von integrierten FEM-Systemen zu bekommen. Als Beispiele dienen verschiedene Bauteile aus dem Gebiet der Strukturmechanik (linear-elastischer Bereich), welche mit Pro/MECHANICA und ANSYS modelliert und berechnet werden. Abschließend erfolgt eine Gegenüberstellung der Daten aus FEM und analytischer Rechnung, sowie eine Bewertung der Ergebnisse.

APA, Harvard, Vancouver, ISO, and other styles

19

Kim, Jiae. "Nonlinear Generalizations of Linear Discriminant Analysis: the Geometry of the Common Variance Space and Kernel Discriminant Analysis." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1607019187556971.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Benner, Peter, Enrique Quintana-Ortí, and Gregorio Quintana-Ortí. "Solving Linear Matrix Equations via Rational Iterative Schemes." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200601460.

Full text

Abstract:

We investigate the numerical solution of stable Sylvester equations via iterative schemes proposed for computing the sign function of a matrix. In particular, we discuss how the rational iterations for the matrix sign function can efficiently be adapted to the special structure implied by the Sylvester equation. For Sylvester equations with factored constant term as those arising in model reduction or image restoration, we derive an algorithm that computes the solution in factored form directly. We also suggest convergence criteria for the resulting iterations and compare the accuracy and perf

APA, Harvard, Vancouver, ISO, and other styles

21

Zahn, Peter. "Screened Korringa-Kohn-Rostoker-Methode für Vielfachschichten." Doctoral thesis, Technische Universität Dresden, 1998. https://tud.qucosa.de/id/qucosa%3A24521.

Full text

Abstract:

Im Rahmen der vorliegenden Arbeit wird eine Tight-Binding-Formulierung der Korringa-Kohn-Rostoker-Greenschen-Funktionsmethode vorgestellt. Dabei werden mittels eines geeignet gewählten Referenzsystems abgeschirmte Strukturkonstanten konstruiert. Es werden die Vorteile und Grenzen dieser Transformation des Formalismus diskutiert. Es wird gezeigt, daß der numerische Aufwand zur erechnung der Elektronenstruktur von Systemen mit langgestreckter Elementarzelle linear mit der Systemgröße wächst. Damit ist eine Behandlung von Systemen mit 500 und mehr Atomen pro Elementarzelle möglich. Anhand von umf

APA, Harvard, Vancouver, ISO, and other styles

22

Nkemzi, Boniface, and Bernd Heinrich. "Partial Fourier approximation of the Lamé equations in axisymmetric domains." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200501145.

Full text

Abstract:

In this paper, we study the partial Fourier method for treating the Lamé equations in three-dimensional axisymmetric domains subjected to nonaxisymmetric loads. We consider the mixed boundary value problem of the linear theory of elasticity with the displacement u, the body force f \in (L_2)^3 and homogeneous Dirichlet and Neumann boundary conditions. The partial Fourier decomposition reduces, without any error, the threedimensional boundary value problem to an infinite sequence of twodimensional boundary value problems, whose solutions u_n (n = 0,1,2,...) are the Fourier coeffic

APA, Harvard, Vancouver, ISO, and other styles

23

Benkert, Katharina. "Effiziente FE-Approximation bei komplizierten Geometrien durch Materialfunktionen." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11481994.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Starkloff, Hans-Jörg, and Ralf Wunderlich. "Stationary solutions of linear ODEs with a randomly perturbed system matrix and additive noise." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200501335.

Full text

Abstract:

The paper considers systems of linear first-order ODEs with a randomly perturbed system matrix and stationary additive noise. For the description of the long-term behavior of such systems it is necessary to study their stationary solutions. We deal with conditions for the existence of stationary solutions as well as with their representations and the computation of their moment functions. Assuming small perturbations of the system matrix we apply perturbation techniques to find series representations of the stationary solutions and give asymptotic expansions for their first- and second-order

APA, Harvard, Vancouver, ISO, and other styles

25

Schwarzbach, Christoph. "Stability of finite element solutions to Maxwell's equations in frequency domain." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2009. http://nbn-resolving.de/urn:nbn:de:bsz:105-24780.

Full text

Abstract:

Eine Standardformulierung der Randwertaufgabe für die Beschreibung zeitharmonischer elektromagnetischer Phänomene hat die Vektor-Helmholtzgleichung für das elektrische Feld zur Grundlage. Bei niedrigen Frequenzen führt der große Nullraum des Rotationsoperators zu einem instabilen Lösungsverhalten. Wird die Randwertaufgabe zum Beispiel mit Hilfe der Methode der Finiten Elemente in ein lineares Gleichungssystem überführt, äußert sich die Instabilität in einer schlechten Konditionszahl ihrer Koeffizientenmatrix. Eine stabilere Formulierung wird durch die explizite Berücksichtigung der Kontinuität

APA, Harvard, Vancouver, ISO, and other styles

26

Penzl, Thilo. "A Multi-Grid Method for Generalized Lyapunov Equations." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200501010.

Full text

Abstract:

We present a multi-grid method for a class of structured generalized Lyapunov matrix equations. Such equations need to be solved in each step of the Newton method for algebraic Riccati equations, which arise from linear-quadratic optimal control problems governed by partial differential equations. We prove the rate of convergence of the two-grid method to be bounded independent of the dimension of the problem under certain assumptions. The multi-grid method is based on matrix-matrix multiplications and thus it offers a great potential for a parallelization. The efficiency of the me

APA, Harvard, Vancouver, ISO, and other styles

27

Glänzel, Janine. "Kurzvorstellung der 3D-FEM Software SPC-PM3AdH-XX." Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200900211.

Full text

Abstract:

In diesem Preprint wird die Weiterentwicklung der 3D-FEM Software SPC-PM3Adh-XX kurz vorgestellt. Die Einleitung beschreibt schematisch den Ablauf des Programms und sechs Programmversionen. Weiterhin werden die allgemeinen Bedienungsanleitungen und die Funktionalität der einzelnen Versionen aufgeführt. Im letzten Abschnitt, dem Anhang, werden kurz das Standardfile und das Radiale Basisfunktionen-Datenfile erklärt.

APA, Harvard, Vancouver, ISO, and other styles

28

Tuma, Carlos Cesar Mansur. "Aprendizado de máquina baseado em separabilidade linear em sistema de classificação híbrido-nebuloso aplicado a problemas multiclasse." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/407.

Full text

Abstract:

Made available in DSpace on 2016-06-02T19:05:36Z (GMT). No. of bitstreams: 1 2598.pdf: 3349204 bytes, checksum: 01649491fd1f03aa5a11b9191727f88b (MD5) Previous issue date: 2009-06-29<br>Financiadora de Estudos e Projetos<br>This master thesis describes an intelligent classifier system applied to multiclass non-linearly separable problems called Slicer. The system adopts a low computacional cost supervised learning strategy (evaluated as ) based on linear separability. During the learning period the system determines a set of hyperplanes associated to oneclass regions (sub-spaces). In classif

APA, Harvard, Vancouver, ISO, and other styles

29

Hofmann, B., and G. Fleischer. "Stability Rates for Linear Ill-Posed Problems with Convolution and Multiplication Operators." Universitätsbibliothek Chemnitz, 1998. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-199800987.

Full text

Abstract:

In this paper we deal with the `strength' of ill-posedness for ill-posed linear operator equations Ax = y in Hilbert spaces, where we distinguish according_to_M. Z. Nashed [15] the ill-posedness of type I if A is not compact, but we have R(A) 6= R(A) for the range R(A) of A; and the ill-posedness of type II for compact operators A: From our considerations it seems to follow that the problems with noncompact operators A are not in general `less' ill-posed than the problems with compact operators. We motivate this statement by comparing the approximation and stability behaviour of discrete leas

APA, Harvard, Vancouver, ISO, and other styles

30

Meisel, Mathias, and Arnd Meyer. "Hierarchically preconditioned parallel CG-solvers with and without coarse-matrix-solvers inside FEAP." Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200500995.

Full text

Abstract:

After some remarks on the parallel implementation of the Finite Element package FEAP, our realisation of the parallel CG-algorithm is sketched. From a technical point of view, a hierarchical preconditioner with and without additional global crosspoint preconditioning is presented. The numerical properties of this preconditioners are discussed and compared to a Schur-complement-preconditioning, using a wide range of data from computations on technical and academic examples from elasticity.

APA, Harvard, Vancouver, ISO, and other styles

31

Schwarzer, Norbert. "Kugeleindruckversuch in geschichtete Materialien." [S.l. : s.n.], 1998. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10324555.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Ilzig, Katrin. "Approximation stochastischer Charakteristiken von Funktionalen schwach korrelierter Prozesse." Doctoral thesis, Universitätsbibliothek Chemnitz, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-201001000.

Full text

Abstract:

In praktischen Aufgabenstellungen können zur Modellierung zufälliger Einflüsse, welche sich durch schwache Abhängigkeiten auszeichnen, schwach korrelierte zufällige Funktionen genutzt werden. Die nähere Untersuchung von Funktionalen schwach korrelierter zufälliger Funktionen ist durch die Gestalt der Lösungen von praktischen Fragestellungen motiviert. Die stochastischen Charakteristiken dieser Lösungen lassen sich im Allgemeinen nicht exakt bestimmen, so dass auf Approximationsverfahren zurückgegriffen werden muss. Diese stehen im Mittelpunkt der Dissertation. Zu Beginn werden Entwicklungen vo

APA, Harvard, Vancouver, ISO, and other styles

33

Jakel, Roland. "Linear Dynamic System Analyses with Creo Simulate – Theory & Application Examples, Capabilities, Limitations –." Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-225992.

Full text

Abstract:

1. Einführung in die Theorie dynamischer Analysen mit Creo Simulate 2. Modalanalysen (Standard und mit Vorspannung) 3. Dynamische Analysen einschließlich Klassifizierung der Analysen; einige einfache Beispiele für eigene Studien (eine Welle unter Unwuchtanregung und ein Ein-Massen-Schwinger) sowie etliche Beispiele größerer dynamischer Systemmodelle aus unterschiedlichsten Anwendungsbereichen 4. Feedback an den Softwareentwickler PTC (Verbesserungsvorschläge und Softwarefehler) 5. Referenzen<br>1. Introduction to dynamic analysis theory in Creo Simulate 2. Modal analysis (standard and with pre

APA, Harvard, Vancouver, ISO, and other styles

34

Mohammadzadeh, Saeideh. "Electronic Transport Properties of Copper and Gold at Atomic Scale." Doctoral thesis, Universitätsbibliothek Chemnitz, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-63427.

Full text

Abstract:

The factors governing electronic transport properties of copper and gold atomic-size contacts are theoretically examined in the present work. A two-terminal conductor using crystalline electrodes is adopted. The non-equilibrium Green’s function combined with the density functional tight-binding method is employed via gDFTB simulation tool to calculate the transport at both equilibrium and non-equilibrium conditions. The crystalline orientation, length, and arrangement of electrodes have very weak influence on the electronic characteristics of the considered atomic wires. The wire width is foun

APA, Harvard, Vancouver, ISO, and other styles

35

Langenberg, Tobias. "Neuromeric organization of the midbrain-hindbrain boundary region in zebrafish." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1103005640328-75382.

Full text

Abstract:

The neuromeric concept of brain formation has become a well-established model to explain how order is created in the developing vertebrate central nervous system. The most important feature of neuromeres is their compartmentalization on the cellular level: Each neuromere comprises a lineage-restricted population of cells that does not intermingle with cells from neighboring compartments. The units of the vertebrate hindbrain, the rhombomeres, serve as the best-studied examples of neuromeres. Here, the lineage restriction mechanism has been found to function on the basis of differentially expre

APA, Harvard, Vancouver, ISO, and other styles

36

Jakel, Roland. "Grundlagen der Elasto-Plastizität in Creo Simulate - Theorie und Anwendung." Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-87141.

Full text

Abstract:

Der Vortrag beschreibt die Grundlagen der Elasto-Plastizität sowie die softwaretechnische Anwendung mit dem FEM-Programm Creo Simulate bzw. Pro/MECHANICA von PTC. Der erste Teil des Vortrages beschreibt die Charakteristika plastischen Verhaltens, unterschiedliche plastische Materialgesetze, Fließkriterien bei mehrachsiger Beanspruchung und unterschiedliche Verfestigungsmodelle. Im zweiten Vortragsteil werden Möglichkeiten und Grenzen der Berechnung elasto-plastischer Probleme mit der Software dargestellt sowie Anwendungstipps gegeben. Im dritten Vortragsteil schließlich werden verschiedene Bei

APA, Harvard, Vancouver, ISO, and other styles

37

Puengnim, Anchalee. "Classification of linear and nonlinear modulations using Bayesian methods." Phd thesis, 2008. http://oatao.univ-toulouse.fr/7730/1/puengnim.pdf.

Full text

Abstract:

This thesis studies classification of digital linear and nonlinear modulations using Bayesian methods. Modulation recognition consists of identifying, at the receiver, the type of modulation signals used by the transmitter. It is important in many communication scenarios, for example, to secure transmissions by detecting unauthorized users, or to determine which transmitter interferes the others. The received signal is generally affected by a number of impairments. We propose several classification methods that can mitigate the effects related to imperfections in transmission channels. More sp

APA, Harvard, Vancouver, ISO, and other styles

38

Huang, Ya Ti, and 黃雅蒂. "Time Series Classification Using Frequency Domain and Piecewise Linear Methods." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/30238750664892747620.

Full text

Abstract:

碩士<br>東海大學<br>統計學系<br>93<br>As for the time series classification problem, we consider two types of approaches which are corresponding to two kinds of data. The first, for the time series data with more obvious periodicity (e.g., cardiac, speech, or electric motor systems, earthquake and explosion), frequency-based techniques using the spectrum analysis can capture most of the essential information. By this approach we not only reduce the data dimensions but also utilize these essential frequencies and the general classification method (such as LDA and KNN) to sort out the time series. This is

APA, Harvard, Vancouver, ISO, and other styles

39

Po-Liang, Chen. "Novel Linear/Nonlinear Classification Methods using Fukunaga-Koontz and Fisher Discriminant approaches." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1707200601020200.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Chen, Po-Liang, and 陳柏良. "Novel Linear/Nonlinear Classification Methods using Fukunaga-Koontz and Fisher Discriminant approaches." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/92496663495078198012.

Full text

Abstract:

碩士<br>國立臺灣大學<br>工業工程學研究所<br>94<br>Fisher’s Linear Discriminant (FLD) and Fukunaga-Koontz Linear Discriminant (FKLD) have different characteristics in classification analysis. However, they share the same objective to find a “discriminant vector” on to which the projection of training instances, called “discriminant scores”, can be used to discriminate different classes. In this research, we propose novel approaches to address issues of using the FKLD approach and improve its performance. First, in order to make the FKLD approach more meaningful in classification, we combine the FKLD with t

APA, Harvard, Vancouver, ISO, and other styles

41

Yuan, Guo-Xun, and 袁國訓. "A Comparison of Optimization Methods for Large-scale L1-regularized Linear Classification." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89306444290029333316.

Full text

Abstract:

碩士<br>國立臺灣大學<br>資訊工程學研究所<br>97<br>A large-scale linear classifier is useful for document classification and computational linguistics. The L1-regularized form can be used for feature selection, but its non-differentiability causes more difficulties in training. Various optimization methods have been proposed in recent years, but no serious comparison among them has been made. In this paper, we carefully address implementation issues of some representative methods and conduct a comprehensive comparison. Results show that coordinate descent type methods may be the most suitable in general situat

APA, Harvard, Vancouver, ISO, and other styles

42

Bui, Tang Bao Ngoc. "Semi-linear waves with time-dependent speed and dissipation." Doctoral thesis, 2013. https://tubaf.qucosa.de/id/qucosa%3A22925.

Full text

Abstract:

The main goal of our thesis is to understand qualitative properties of solutions to the Cauchy problem for the semi-linear wave model with time-dependent speed and dissipation. We greatly benefited from very precise estimates for the corresponding linear problem in order to obtain the global existence (in time) of small data solutions. This reason motivated us to introduce very carefully a complete description for classification of our models: scattering, non-effective, effective, over-damping. We have considered those separately.

APA, Harvard, Vancouver, ISO, and other styles

43

Divya, Padmanabhan. "New Methods for Learning from Heterogeneous and Strategic Agents." Thesis, 2017. http://etd.iisc.ernet.in/2005/3562.

Full text

Abstract:

1 Introduction In this doctoral thesis, we address several representative problems that arise in the context of learning from multiple heterogeneous agents. These problems are relevant to many modern applications such as crowdsourcing and internet advertising. In scenarios such as crowdsourcing, there is a planner who is interested in learning a task and a set of noisy agents provide the training data for this learning task. Any learning algorithm making use of the data provided by these noisy agents must account for their noise levels. The noise levels of the agents are unknown to the planne

APA, Harvard, Vancouver, ISO, and other styles

44

Schneider, Olaf. "Krylov subspace methods and their generalizations for solving singular linear operator equations with applications to continuous time Markov chains." Doctoral thesis, 2005. https://tubaf.qucosa.de/id/qucosa%3A22569.

Full text

Abstract:

Viele Resultate über MR- und OR-Verfahren zur Lösung linearer Gleichungssysteme bleiben (in leicht modifizierter Form) gültig, wenn der betrachtete Operator nicht invertierbar ist. Neben dem für reguläre Probleme charakteristischen Abbruchverhalten, kann bei einem singulären Gleichungssystem auch ein so genannter singulärer Zusammenbruch auftreten. Für beide Fälle werden verschiedene Charakterisierungen angegeben. Die Unterrauminverse, eine spezielle verallgemeinerte Inverse, beschreibt die Näherungen eines MR-Unterraumkorrektur-Verfahrens. Für Krylov-Unterräume spielt die Drazin-Inverse eine

APA, Harvard, Vancouver, ISO, and other styles

45

Erickson, Joshua N. "Evaluation of computational methods for data prediction." Thesis, 2014. http://hdl.handle.net/1828/5662.

Full text

Abstract:

Given the overall increase in the availability of computational resources, and the importance of forecasting the future, it should come as no surprise that prediction is considered to be one of the most compelling and challenging problems for both academia and industry in the world of data analytics. But how is prediction done, what factors make it easier or harder to do, how accurate can we expect the results to be, and can we harness the available computational resources in meaningful ways? With efforts ranging from those designed to save lives in the moments before a near field tsunami to o

APA, Harvard, Vancouver, ISO, and other styles

46

Min, Renqiang. "A non-linear dimensionality reduction method for improving nearest neighbour classification." 2005. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=362347&T=F.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Hsia, Chih-Yang, and 夏誌陽. "A Study on Preconditioners in Newton Method for Large-scale Linear Classification." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/f6vv3j.

Full text

Abstract:

碩士<br>國立臺灣大學<br>資訊工程學研究所<br>105<br>Truncated Newton method is one of the most effective optimization methods for large-scale linear classification. The main computational task at each Newton iteration is to approximately solve a quadratic sub-problem by an iterative method such as the conjugate gradient (CG) method. It is known that CG has slow convergence if the sub-problem is ill-conditioned. Preconditioned CG (PCG) methods have been used to improve the convergence of the CG method, but it is difficult to find a preconditioner that performs well in most situations. Further, because Hessian-f

APA, Harvard, Vancouver, ISO, and other styles

48

Böttcher, Norbert. "Thermodynamics of porous media: non-linear flow processes." Doctoral thesis, 2012. https://tud.qucosa.de/id/qucosa%3A27749.

Full text

Abstract:

Numerical modelling of subsurface processes, such as geotechnical, geohydrological or geothermal applications requires a realistic description of fluid parameters in order to obtain plausible results. Particularly for gases, the properties of a fluid strongly depend on the primary variables of the simulated systems, which lead to non-linerarities in the governing equations. This thesis describes the development, evaluation and application of a numerical model for non-isothermal flow processes based on thermodynamic principles. Governing and constitutive equations of this model have been implem

APA, Harvard, Vancouver, ISO, and other styles

49

Luther, Uwe. "Approximation Spaces in the Numerical Analysis of Cauchy Singular Integral Equations." Doctoral thesis, 2004. https://monarch.qucosa.de/id/qucosa%3A17285.

Full text

Abstract:

The paper is devoted to the foundation of approximation methods for integral equations of the form (aI+SbI+K)f=g, where S is the Cauchy singular integral operator on (-1,1) and K is a weakly singular integral operator. Here a,b,g are given functions on (-1,1) and the unknown function f on (-1,1) is looked for. It is assumed that a and b are real-valued and Hölder continuous functions on [-1,1] without common zeros and that g belongs to some weighted space of Hölder continuous functions. In particular, g may have a finite number of singularities. Based on known spectral properties of

APA, Harvard, Vancouver, ISO, and other styles

50

Mesyagutov, Marat. "Exact Approaches for Higher-Dimensional Orthogonal Packing and Related Problems." Doctoral thesis, 2013. https://tud.qucosa.de/id/qucosa%3A27750.

Full text

Abstract:

NP-hard problems of higher-dimensional orthogonal packing are considered. We look closer at their logical structure and show that they can be decomposed into problems of a smaller dimension with a special contiguous structure. This decomposition influences the modeling of the packing process, which results in three new solution approaches. Keeping this decomposition in mind, we model the smaller-dimensional problems in a single position-indexed formulation with non-overlapping inequalities serving as binding constraints. Thus, we come up with a new integer linear programming model, which we s

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!