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Dissertations / Theses on the topic 'Estimate parameters'

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Published: 4 June 2021

Last updated: 7 February 2022

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1

Heimann, Sebastian [Verfasser], and Torsten [Akademischer Betreuer] Dahm. "A Robust Method To Estimate Kinematic Earthquake Source Parameters / Sebastian Heimann. Betreuer: Torsten Dahm." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2011. http://d-nb.info/1020457244/34.

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Mertz, Christopher George. "Utilization of Genetic Algorithms and Constrained Multivariable Function Minimization to Estimate Load Model Parameters from Disturbance Data." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23289.

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As the requirements to operate the electric power system become more stringent and operating costs must be kept to a minimum, operators and planners must ensure that power system models are accurate and capable of replicating system disturbances. Traditionally, load models were represented as static ZIP models; however, NERC has recently required that planners model the transient dynamics of motor loads to study their effect on the postdisturbance behavior of the power system. Primarily, these studies are to analyze the effects of fault-induced, delayed voltage recovery, which could lead to ca

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3

Sawaya, Michael Allen. "Using noninvasive genetic sampling methods to estimate demographic and genetic parameters for large carnivore populations in the Rocky Mountains." Diss., Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/sawaya/SawayaM0512.pdf.

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Healthy carnivore populations are important to maintaining ecosystem balance, but many species are declining globally at disturbing rates due to anthropogenic causes. To effectively manage and conserve carnivores, wildlife managers must be able to obtain reliable estimates of population parameters. Noninvasive genetic sampling (NGS) methods such as hair or scat collection offer new and exciting alternatives to traditional carnivore research methods involving capture, drugging, and handling of animals; however, the potential of NGS methods to answer applied ecological questions has not been ful

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Anderlini, Letizia <1985&gt. "Kinematic models of interseismic deformation from inversion of GPS and InSAR measurements to estimate fault parameters and coupling degree." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6554/.

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We have used kinematic models in two Italian regions to reproduce surface interseismic velocities obtained from InSAR and GPS measurements. We have considered a Block modeling, BM, approach to evaluate which fault system is actively accommodating the occurring deformation in both considered areas. We have performed a study for the Umbria-Marche Apennines, obtaining that the tectonic extension observed by GPS measurements is explained by the active contribution of at least two fault systems, one of which is the Alto Tiberina fault, ATF. We have estimated also the interseismic coupling distribut

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Hursky, Paul. "Using ambient noise and sources of opportunity to estimate environment parameters and improve matched field source detection and localization /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2001. http://wwwlib.umi.com/cr/ucsd/fullcit?p3000404.

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6

Ahmadian, Nima [Verfasser]. "Integrating Satellite Remote Sensing and In-situ Measurements to Estimate the Biophysical Parameters of Agricultural crop using Multispectral and Radar Data / Nima Ahmadian." Greifswald : Universitätsbibliothek Greifswald, 2017. http://d-nb.info/1138116963/34.

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7

Helgesen, Hans Kristian. "Anisotropic depth migration of converted wave data, inversion of multicomponent data to estimate elastic parameters at the seafloor and one-dimensional data-driven inversion." Doctoral thesis, Norwegian University of Science and Technology, Department of Physics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-2286.

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<p>The increasing demand for oil and gas in the world today drives the need for new and improved methods for identifying hydrocarbon prospects. The petroleum industry uses information about the subsurface in the exploration and production of oil and gas. The industry's tendency to explore deeper waters and more geologically complex areas requires reliable and more robust methods for extracting such information.</p><p>This thesis illustrates possible strategies for using seismic reflection data in the inversion for subsurface earth properties. One strategy which is the traditional approach in s

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Krapf, Lutz Christian [Verfasser], Urs [Akademischer Betreuer] Schmidhalter, Hauke [Akademischer Betreuer] Heuwinkel, and Andreas [Akademischer Betreuer] Gronauer. "Evaluation of near infrared spectroscopy to estimate process parameters in anaerobic digestion of agricultural feedstocks / Lutz Christian Krapf. Gutachter: Hauke Heuwinkel ; Urs Schmidhalter ; Andreas Gronauer. Betreuer: Urs Schmidhalter." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1043041788/34.

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9

Di, Chicco Augusto. "Optimization of a calculation scheme through the parametric study of effective nuclear cross sections and application to the estimate of neutronic parameters of the ASTRID fast nuclear reactor." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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This thesis presents the project for the optimization of the APOLLO3® neutronic calculation scheme applied to the 4th generation fast neutron reactor ASTRID. APOLLO3® is the new multipurpose neutronic platform developed by the CEA. It incorporates many of the previous generation codes used in the French reactor core design supply chain. Like all deterministic codes, APOLLO3® solves the neutron transport equation with a discretization of the variables of interest: multi-group method for the energy, discrete ordinates and spherical harmonics for the angular variable, collision probabilities and

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10

Wall, Nathan Lane. "Augmented testing and effects on item and proficiency estimates in different calibration designs." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1100.

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Broadening the term augmented testing to include a combination of multiple measures to assess examinee performance on a single construct, the issues of IRT item parameter and proficiency estimates were investigated. The intent of this dissertation is to determine if different IRT calibration designs result in differences to item and proficiency parameter estimates and to understand the nature of those differences. Examinees were sampled from a testing program in which each examinee was administered three mathematics assessments measuring a broad mathematics domain at the high school level. Thi

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11

Favorite, Jeffrey Alan. "Variational estimates of point kinetics parameters." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/16756.

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12

Wiebe, Jonathan Andrew. "Texture estimates of operational forestry parameters." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0007/MQ35026.pdf.

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13

Strasser, Helmut. "Perturbation invariant estimates and incidental nuisance parameters." Institut für Statistik und Mathematik, WU Vienna University of Economics and Business, 1996. http://epub.wu.ac.at/1138/1/document.pdf.

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It is shown (Proposition (3.9)) that the asymptotic information bound which is valid for the estimation of a parameter in the structure (mixture) model remains valid in the functional model (incidental nuisance parameters) if only perturbation symmetric estimators (Definition (3.6)) are admitted. Pertur- bation symmetry is a property which is closely related to permutation symmetry (Theorem (3.4)). In particular, equicontinuous functions of empirical processes are perturbation symmetric (Theorem (3.3)). Thus, the results of this paper continue a discussion initiated by Bickel and Klaassen (198

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14

Munster, Drayton William. "Robust Parameter Inversion Using Stochastic Estimates." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96399.

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For parameter inversion problems governed by systems of partial differential equations, such as those arising in Diffuse Optical Tomography (DOT), even the cost of repeated objective function evaluation can be overwhelming. Despite the linear (in the state variable) nature of the DOT problem, the nonlinear parameter inversion process is dominated by the computational burden of solving a large linear system for each source and frequency. To compute the Jacobian for use in Newton-type methods, an adjoint solve is required for each detector and frequency. When a three-dimensional tomography probl

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15

Zachary, A. Glen. "The estimated parameter flood forecasting model." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25148.

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Design flood estimates have traditionally been based on records of past events. However, there is a need for a method of estimating peak flows without these records. The Estimated Parameter Flood Forecasting Model (EPFFM) has been developed to provide such a method for small water resource projects based on a 200 year or less design flood. This "user friendly" computer model calculates the expected peak flow and its standard deviation from low, probable, and high estimates of thirteen user supplied parameters. These parameters describe physical characteristics of the drainage basin, infiltrati

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Freitas, Ricardo Galvão de. "Caracterização de germoplasma de pinhão manso (Jatropha curcas L.) por descritores morfo-agronômicos." Universidade Federal de Viçosa, 2010. http://locus.ufv.br/handle/123456789/4529.

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Made available in DSpace on 2015-03-26T13:39:37Z (GMT). No. of bitstreams: 1 texto completo.pdf: 509482 bytes, checksum: ed32a13244b163a7dcca86f047e20162 (MD5) Previous issue date: 2010-07-20<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Physic nut (Jatropha curcas L.) is a highly promising species for biofuel production. Its descriptors are known and evaluation of its genetic variability has not been done yet. This is the first study on genetic variability in J. curcas accessions and its aim was to start the definition of morph-agronomical descriptors in juvenile phase

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17

Pannecoucke, Léa. "Combinaison de la géostatistique et des simulations à base physique – application à la caractérisation de panaches de contaminants." Electronic Thesis or Diss., Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM047.

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La caractérisation de la contamination dans les sols et les nappes autour d’installations industrielles est un enjeu majeur de l’assainissement de ces sites. Ce travail porte sur la combinaison de deux approches utilisées classiquement pour caractériser les contaminations : la géostatistique et les simulations numériques d’écoulement et de transport. L’objectif de cette combinaison est d’améliorer les estimations d’activités en radionucléides, par l’introduction d’informations de nature physico-chimique dans un modèle probabiliste. Deux méthodes sont comparées. Elles sont basées sur la générat

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18

Horák, Petr. "Řízení laboratorního modelu nestabilního balancujícího vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229877.

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This diploma thesis is a part of HUMMER project. The project deals with three student’s development of two-wheeled unstable vehicle Segway type and its diminished laboratory model. This thesis deals with reviviscence of laboratory model, design of its control and realization of its actuating (a more detailed breakdown of tasks in the project is shown below). At the beginning of the work is presented reviewed study. The first part of study deals with similar models in the world, their construction and way of control. In the next part of reviewed study follows description of a real model and der

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19

Tao, Zuoyu. "Improved uncertainty estimates for geophysical parameter retrieval." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61516.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 167-169).<br>Algorithms for retrieval of geophysical parameters from radiances measured by instruments onboard satellites play a large role in helping scientists monitor the state of the planet. Current retrieval algorithms based o

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20

Saatchi, Mustafa. "Genetic parameters of production traits in Welsh mountain sheep." Thesis, Bangor University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263274.

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Hu, Huilin. "Large sample theory for pseudo-maximum likelihood estimates in semiparametric models /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/8936.

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22

Sousa, Rita Cristina Pinto de. "Parameter estimation in the presence of auxiliary information." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11295.

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Dissertação para obtenção do Grau de Doutora em Estatística e Gestão de Risco, Especialidade em Estatística<br>In survey research, there are many situations when the primary variable of interest is sensitive. The sensitivity of some queries can give rise to a refusal to answer or to false answers given intentionally. Survey can be conducted in a variety of settings, in part dictated by the mode of data collection, and these settings can differ in how much privacy they offer the respondent. The estimates obtained from a direct survey on sensitive questions would be subject to high bias. A va

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23

Mahoney, Craig. "Improved estimates of vegetation and terrain parameters from waveform LiDAR." Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42490.

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Light Detection And Ranging (LiDAR) technologies have evolved rapidly over the last decade, contributing to our knowledge of the Earth's surface evolution from local to global scales. A relatively young form of LiDAR is continuous waveform, which has not yet been fully exploited. The current research investigates and develops new methods, highlighting the potential and possible pitfalls of working with continuous waveform LiDAR. The first piece of research investigates the effects of shadowing in LiDAR waveforms in physically observed, large footprint LiDAR waveforms, based on previous works n

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Strasser, Helmut. "Asymptotic Efficiency of Estimates for Models with Incidental Nuisance Parameters." Institut für Statistik und Mathematik, WU Vienna University of Economics and Business, 1995. http://epub.wu.ac.at/498/1/document.pdf.

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In this paper we show that the wellknown asymptotic efficiency bounds for full mixture models remain valid if individual sequences of nuisance parameters are considered. This is made precise both for some classes of random (i.i.d.) and nonrandom nuisance parameters. For the random case it is shown that superefficiency of the kind given by an example of Pfanzagl (1993) can happen only with low probability. The non-random case deals with permutation invariant estimators under onedimensional nuisance parameters. It is shown that the efficiency bounds remain valid for individual nonrandom arra

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25

Courdin, Marie Claire. "Laboratory reactor design and the precision of parameter estimates." Thesis, University of Ottawa (Canada), 1992. http://hdl.handle.net/10393/7951.

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This study is concerned with investigating the dependence of the precision of estimated kinetic parameters on the type of reactor used for performing the kinetic measurements. Two ideal reactors, the plug-flow reactor (PFR) and the continuous-stirred-tank reactor (CSTR), were simulated using a Monte-Carlo computer simulation. Parameters were estimated using nonlinear multiresponse estimation techniques, and the distributional characteristics of the parameter estimates were calculated. Comparison between the reactors involved the study of overall measures of precision such as the size, shape an

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26

Gao, Song. "The Exploration of the Relationship Between Guessing and Latent Ability in IRT Models." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/dissertations/423.

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This study explored the relationship between successful guessing and latent ability in IRT models. A new IRT model was developed with a guessing function integrating probability of guessing an item correctly with the examinee's ability and the item parameters. The conventional 3PL IRT model was compared with the new 2PL-Guessing model on parameter estimation using the Monte Carlo method. SAS program was used to implement the data simulation and the maximum likelihood estimation. Compared with the traditional 3PL model, the new model should reflect: a) the maximum probability of guessing should

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27

Fernandes, Tamara. "Genetic parameter estimates for ultrasound-measured carcass traits in sheep." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0024/MQ51063.pdf.

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Novotný, Jan. "Návrh a realizace laboratorního modelu "Inverzní kyvadlo řízené setrvačníkem"." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417781.

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This thesis deals with the design of a lecture model of an inverse pendulum controled by a flywheel, which is a system of an unstable beam with an electromotor and a reaction wheel at its end. The moment of motor acting on the flywheel also causes a moment acting on the beam, which is the way the system is controled. The device works connected to a personal computer.

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Fox-Neff, Kristen. "Inverse Methods in Parameter Estimation for High Intensity Focused Ultrasound (HIFU)." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1459155373.

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30

Human, S. W. "Univariate parametric and nonparametric statistical quality control techniques with estimated process parameters." Pretoria : [s.l.], 2009. http://upetd.up.ac.za/thesis/available/etd-10172009-093912.

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Marques, Vitor Hugo Almeida. "Adaptação de parâmetros em meta-heurísticas com sistemas nebulosos genéticos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259064.

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Orientador: Fernando Antônio Campos Gomide<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-18T11:42:14Z (GMT). No. of bitstreams: 1 Marques_VitorHugoAlmeida_M.pdf: 2517224 bytes, checksum: e0259e1018ac57ec9a5cb95e0d65284b (MD5) Previous issue date: 2011<br>Resumo: Esta dissertação introduz um sistema nebuloso genético (SNG) para adaptação de parâmetros em meta-heurísticas. Duas meta-heurísticas entre as mais usadas foram consideradas como exemplos, algoritmo genético e busca tabu. Os parâme

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Zaritsky, Dennis. "Clues to the nature of ultradiffuse galaxies from estimated galaxy velocity dispersions." OXFORD UNIV PRESS, 2017. http://hdl.handle.net/10150/624738.

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We describe how to estimate the velocity dispersions of ultradiffuse galaxies (UDGs) using a previously defined galaxy scaling relationship. The method is accurate for the two UDGs with spectroscopically measured dispersions, as well as for ultracompact galaxies, ultrafaint galaxies, and stellar systems with little or no dark matter. This universality means that the relationship can be applied without further knowledge or prejudice regarding the structure of a galaxy. We then estimate the velocity dispersions of UDGs drawn from two published samples and examine the distribution of total masses

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Alvarez, Patricio A. "A Methodology to Estimate Time Varying User Responses to Travel Time and Travel Time Reliability in a Road Pricing Environment." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/631.

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Road pricing has emerged as an effective means of managing road traffic demand while simultaneously raising additional revenues to transportation agencies. Research on the factors that govern travel decisions has shown that user preferences may be a function of the demographic characteristics of the individuals and the perceived trip attributes. However, it is not clear what are the actual trip attributes considered in the travel decision- making process, how these attributes are perceived by travelers, and how the set of trip attributes change as a function of the time of the day or from day

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Dang, Thi To Nhu. "Estimation des indices de stabilité et d'autosimilarité par variations de puissances négatives." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAM033/document.

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Ce travail porte sur l'estimation des indices d'autosimilarité et de stabilité d'un processus ou champ stable fractionnaire et autosimilaire ou d'un processus stable multifractionnaire.Plus précisément, soit X un processus ou un champ stable H-autosimilaire à accroissements stationnaires (H-sssi) ou un processus stable multifractionnaire. Nous observons X aux points k/n, k=0,..., n.Nos estimations sont basées sur des variations de puissances négatives beta avec -1/2<br>This work is concerned with the estimation of the self-similarity and the stability indices of a H-self-similarity stable proc

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Piwonski, Jaroslaw [Verfasser]. "Parameter estimates for marine ecosystem models in 3-D / Jaroslaw Piwonski." Kiel : Universitätsbibliothek Kiel, 2015. http://d-nb.info/107021874X/34.

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Leeds, Timothy D. "Pork quality improvement estimates of genetic parameters and evaluation of novel selection criteria /." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1133368574.

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Shy, Jaw Huei, and 施兆輝. "Some Parameters Estimate in the Branching Processes." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/06825276952163360134.

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Chen, Chia-Hsiu, and 陳佳秀. "Some Parameters Estimate in the Item Response Theory." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/78775486916531296483.

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碩士<br>逢甲大學<br>統計與精算所<br>92<br>As time goes on, the operation technology of computer makes progress at a tremendous pace or with giant strides. Using the choice exam is very common in current situation. By way of operation technology of computer, test theory develop quickly. In practice, people still use classical theory to compute item parameters. Item response theory limits it’s computing process. If we can use common software getting item parameters, it would be helpful to popularize item response theory. Model of item response theory seem to be Generalized Linear Model in Statistics. In

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Yang, Chang-Jung, and 楊昌融. "Estimate the Best Design Combination of EMM's Parameters." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/45834313608845468015.

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碩士<br>國立中央大學<br>機械工程研究所<br>92<br>In numerous non-traditional, systematical micro-machining, the electrochemical micro-machining (abbreviated as EMM) has the advantage of quick processing speed, good convergence in surface stress, and nice smoothness in workpiece surface with enormous potentialities highly added value. A copper tube with 300-micron meter of diameter is selected as electrode tool. The inner flowing vein is employed for facilitating the processing efficiency of the micron tube. In this research, Taguchi Statistical Method of Quality- engineering is used to analyze the influence l

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Yi-Nan, Lai. "Estimate of Segmental Biomechanical Parameters Using 3D Range Data." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709302660.

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Wu, Pei-Rong, and 吳佩蓉. "Fuel Cell Optimization Parameters Estimate by Particle Swarm Optimization." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/05414094875121472401.

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碩士<br>逢甲大學<br>資訊電機工程碩士在職專班<br>99<br>This thesis to propose the concept of environmental protection enhancing, countries in the world actively developing of green renewable energy to reduce carbon dioxide concentration. The characteristics of intermittent renewable energy sources required to ensure effective energy storage system, to achieve higher economic efficiency. Due to fuel cell is contain storage function as well as energy converters, that make fuel cell development greatly improved. The thesis will not only introduce some swarm intelligence of the algorithm and description, but also

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Lai, Yi-Nan, and 賴逸楠. "Estimate of Segmental Biomechanical Parameters Using 3D Range Data." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/15992877157826170863.

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碩士<br>國立清華大學<br>工業工程與工程管理學系<br>94<br>The purpose of this study is to map 3D tomographical data obtained from MRI onto 3D human surface data for the computation of biomechanical parameters. These biomechanical parameters include mass, center of mass, averaged density, moment of inertia and radius of gyration. The 3D human surface data is the 3D Human Body Bank which was measured using 3D body scanners. The profiles of four tissues, bone, skin, muscle and fat are mapped. The surface data of the segment is dissected into several equally-spaced cross-sections along its longitudinal axis like that

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Li, Yi-Hsien, and 李奕賢. "Application of HYDRUS-1D Model to Estimate Parameters of Soil Water Characteristic Curve Parameters." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/09696158260471921317.

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碩士<br>國立中央大學<br>應用地質研究所<br>98<br>Infiltration test is an important technique to investigate the hydrologic properties in soils, while the unsaturated flow numerical models can be an efficient tool to understand flow mechanism when the physical properties and conditions of soils are changed. This study employs HYDRUS-1D model and self developed Levenberg-Marquardt algorithm to inversely estimate parameters in the van Genuchten formula. The developed LM model was tested based on the synthetically generated data from HYDRUS-1D model. Additionally, the initial guesses of soil parameters in LM mode

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Fang, Jui, and 方銳. "Using Ultrasonic Quanitative Parameters to Estimate the Temporal Bone Density." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/37460883986930338453.

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碩士<br>長庚大學<br>醫療機電工程研究所<br>99<br>The temporal bone density is one of the marker to evaluate the age-related hearing loss. We use ultrasound, which is no radiation and simple equipment comparing with current applied X ray, in our work to estimate the density of temporal bone. There is correlation between ultrasound attenuation coefficient and bone density, but the thickness of bone must be known and it is difficult in clinical diagnosis. In other way we can adopt ultrasound backscatter quantitative parameters without knowing the thickness. So we study the relationship between temporal bone dens

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許傳慧. "Using Suppressed FCM Algorithms to Estimate Parameters of Normal Distribution." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/19354094028129269789.

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碩士<br>國立新竹教育大學<br>數學教育學系碩士班<br>93<br>Using Suppressed FCM Algorithm to Estimate Parameters of Normal Distribution Abstract The fuzzy c-means clustering algorithm（FCM algorithm） is the well known and most powerful method used in cluster analysis. Wu and Yan （2002）proposed a new metric to replace the Euclidean metric in the c-means clustering algorithm, and developed an alternative fuzzy c-means algorithm called AFCM algorithm. In this paper, we also propose another new metric and apply in the c-means clustering algorithm, which is called the Cauchy fuzzy c-means algorithm（CFCM algorithm）.Both a

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Chen, Chi-Tian, and 陳啟天. "The estimate of parameters of logistic population dynamic probability model." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/94294161950386012341.

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碩士<br>國立臺灣大學<br>農藝學研究所<br>94<br>The deterministic logistic model has long been used for modeling the growth of animal population. However, its stochastic counterpart is less known to most of the ecologists partly due to the difficulty in parameter estimation. The estimation method given by Renshaw (1991) was rough and did not take into consideration of repeated measurement data. In this research, we propose an alternative to the estimation of the four parameters of stochastic logistic model. Our approach includes two major steps. First part of our estimation method is to construct a relat

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Hu, Ming-Chin, and 胡明欽. "Use Rectangle-phantom to Estimate Cone-beam Scanners Geometric Parameters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x248dx.

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碩士<br>國立陽明大學<br>生物醫學影像暨放射科學系<br>105<br>Cone-beam CT scanners are widely used in biomedical imaging and industry non-destructive testing, for example: dental computed tomography、molecular imaging and quality QC and QA testing. It is expected to acquire perfect image for analysis and diagnosis. To improve image quality, both hardware and software are important. System geometry accuracy is one of the factor. In our research, we will discuss system geometry definition、 parameter and calibration method. After adopting calibration parameters with projection images, image quality is improved and misa

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Chowdhury, Mohammad Ziaul Islam. "Designing to estimate certain parameters or parametric functions independently of others." 2009. http://hdl.handle.net/1993/21465.

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Tang, Chien-Ping, and 湯健平. "Applying BBPSO Algorithm to Estimate the Weibull Parameters for Interval Data." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/63848771088336646450.

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碩士<br>國立臺灣科技大學<br>工業管理系<br>100<br>In survival analysis, the inspection costs should be concerned. An interval data is widely used in lifetime data analysis. In this article, we present maximum likelihood estimation via Bare Bones Particle Swarm Optimization (BBPSO) algorithm to estimate two parameters of Weibull distribution under interval censored data. This approach can produce more accuracy of the parameter estimation for the Weibull distribution. Additionally, the confidence intervals for the estimators are obtained. Compare to the mid-point method and the EM algorithm, it shows that the m

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Hsu, Ｋung-Shin, and 許恭實. "Fuel Cell Optimization Parameters Estimate by Artificial Bee Colony Optimization Algorithm." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/82919075614695213241.

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碩士<br>逢甲大學<br>電機工程所<br>100<br>In response to the increasing depletion of natural resources on Earth, countries around the world all work actively in the development of green renewable energy. On one hand, the useful life of other sources can be extended; on the other hand, it can reduce the concentration of carbon dioxide in the air to avoid the ozone layer destruction. However, wind power, solar power and other renewable energy sources have intermittent feature, which has to be compatible with effective energy storage system to achieve higher economic efficiency. Due to fuel cells can improve

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