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Dissertations / Theses on the topic 'Estimation of efficiency'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Pettegrew, Brian P. "On methods of precipitation efficiency estimation /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1422951.

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2

Hans, Pamela Dianne. "Discharge estimation techniques for hydraulic efficiency testing." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0027/MQ51749.pdf.

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3

Firth, David. "Quasi-likelihood estimation : efficiency and other aspects." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38313.

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4

Nagy, Szabolcs, Małgorzata Sikorska, and P. G. Pererva. "Estimation of economic efficiency of power engineering." Thesis, Харківський національний університет будівництва та архітектури, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/36541.

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5

Herndler, Barbara Linda. "Non-intrusive efficiency estimation of induction machines." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11423.

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Includes abstract.<br>Includes bibliographical references (leaves 189-194).<br>Determining the efficiency of an in-service motor requires the motor to be decoupled from its load or the use of highly specialised equipment which is often unavailable on site. In order to assess the efficiency of an induction machine, it is subjected to numerous testing procedures established by recognised international testing standards. These procedures are considered to be time consuming, manually intensive and disruptive to the machine’s operation. Also, the efficiency of the machine quoted after these laborat

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6

Downie, Alan Stewart. "Efficiency of statistics of stereology." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46750.

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7

Nguyen, Ngoc B. "Estimation of Technical Efficiency in Stochastic Frontier Analysis." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1275444079.

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8

Leung, Denis H. Y. "Robust estimation : efficiency and bias, in theory and practice." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236163.

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9

Kravchenko, T. "The quantitative methods of estimation of corporate management efficiency." Thesis, Видавництво СумДУ, 2006. http://essuir.sumdu.edu.ua/handle/123456789/21605.

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Chirindo, Mathews. "Non-intrusive efficiency estimation of inverter-fed induction machines." Doctoral thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/32573.

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Motorised loads using induction machines use approximately 60% of the electricity globally. Most of these systems use three-phase induction motors due to their robustness and lower cost. They are often installed in continuously operating industrial plants/applications that require no operational interruptions. Whilst most of these induction machines are supplied from ideally sinusoidal supplies, applications are emerging where induction machines are fed from non-sinusoidal supplies. In particular, pulse width modulated inverters realize efficient control of induction machines in many automated

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11

Pereira, Caio Augusto Vigo. "Portfolio efficiency tests with conditioning information using empirical likelihood estimation." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/96/96131/tde-11072016-145134/.

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We evaluate the use of Generalized Empirical Likelihood (GEL) estimators in portfolios efficiency tests for asset pricing models in the presence of conditional information. Estimators from GEL family presents some optimal statistical properties, such as robustness to misspecification and better properties in finite samples. Unlike GMM, the bias for GEL estimators do not increase as more moment conditions are included, which is expected in conditional efficiency analysis. We found some evidences that estimators from GEL class really performs differently in small samples, where efficiency tests

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12

Gstach, Dieter. "Scale Efficiency: Where Data Envelopment Analysis Outperforms Stochastic Production Function Estimation." Inst. für Volkswirtschaftstheorie und -politik, WU Vienna University of Economics and Business, 1993. http://epub.wu.ac.at/6298/1/WP_23.pdf.

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Robustness of DEA scale efficiency scores is investigared in the context of non-radial efficency measures. Most efficient scales are identified with DEA's refernce firms instead of traditional clustering techniques.The systematic difference between single- and multi-output technologies as concerns most efficient scales is then examined by comparing applied DEA results. These provide evidence in favor of my proposition, that single-output techniques, like stochastic production function estimation, yield upwardly biased most efficient scales.<br>Series: Department of Economics Working Paper Ser

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13

Jacho-Chavez, David Tomas. "Identification, estimation and efficiency of nonparametric and semiparametric models in microeconometrics." Thesis, London School of Economics and Political Science (University of London), 2006. http://etheses.lse.ac.uk/1888/.

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The focal point of this thesis is on identification and estimation of nonparametric models, as well as the efficiency and higher order properties of a class of semiparametric estimators in Microeconometrics. We present a new identification result for a particular nonparametric model that nests many popular parametric/nonparametric Econometric models as special cases. Estimators are proposed and their asymptotic properties derived; in particular, they are shown to be consistent and asymptotically pointwise normally distributed. We implement these estimators for the nonparametric estimation and

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Cefalu, Matthew Steven. "Statistical Methods for Effect Estimation in Biomedical Research: Robustness and Efficiency." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10850.

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Practical application of statistics in biomedical research is predicated on the notion that one can readily return valid effect estimates of the health consequences of treatments (exposures) that are being studied. The goal as statisticians should be to provide results that are scientifically useful, to use the available data as efficiently as possible, to avoid unnecessary assumptions, and, if necessary, develop methods that are robust to incorrect assumptions. In this dissertation, I provide methods for effect estimation that meet these goals. I consider three scenarios: (1) clustered binary

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15

Gajjar, Chetan Sudhir. "Non-intrusive efficiency estimation of induction machines under various power supplies." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/14138.

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Considering that 45% of the world's generated electricity is consumed by induction machines, determining an induction motors efficiency non-intrusively is of great importance in that it enables the machine to operate productively whilst ensuring that the energy consumed by the machine is utilized efficiently. International efficiency testing methods such as the IEEE 112-B can determine a motors efficiency accurately at the cost of hindering the machines productivity. Alternatively, various methods used to determine a machines efficiency in-situ do so at the cost of accuracy. This research prop

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16

Aminu, Muhammad. "Development of new methods for nonintrusive induction motor energy efficiency estimation." Doctoral thesis, Faculty of Engineering and the Built Environment, 2020. http://hdl.handle.net/11427/32440.

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Induction motors (IMs) are the most widely used motors in industries. They constitute about 70% of the total motors used in industries and are the largest energy consumers in industrial applications. As a result of the increasing need for energy savings and demand-side management, the development of methods for accurate energy efficiency estimation has become a crucial area of research. While several methods have been proposed for induction motor efficiency determination, majority of the methods cannot be easily applied in the field owing to the intrusive nature of the test procedures involved

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17

Bhattacharyya, Aditi. "Essays on estimation of technical efficiency and on choice under uncertainty." Diss., [Riverside, Calif.] : University of California, Riverside, 2009. http://proquest.umi.com/pqdlink?Ver=1&Exp=02-08-2015&FMT=7&DID=1818036011&RQT=309&attempt=1.

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Thesis (Ph. D.)--University of California, Riverside, 2009.<br>Includes abstract. Title from first page of PDF file (viewed February 9, 2009). Includes bibliographical references (p. 89-92). Issued in print and online. Available via ProQuest Digital Dissertations.

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18

Máková, Barbora. "Hedge Ratio Estimation in Inventory Management." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-198395.

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Companies dependent on commodities for their production have to deal with volatile commodity prices and should employ measures for risk reduction as unfavourable spot price development may cause significant losses. A useful tool for diminishing the risk is hedging on futures market; however, this approach faces a crucial question of optimal hedge ratio determination (ratio between spot and futures units). Our thesis examines nine different ways of optimal hedge ratio estimation (naive, Sharpe, mean extended Gini coefficient, generalized semivariance, value at risk, and minimum variance through

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19

Chéhab, L'Émir Omar. "Advances in Self-Supervised Learning : applications to neuroscience and sample-efficiency." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG079.

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L'apprentissage auto-supervisé a gagné en popularité en tant que méthode d'apprentissage à partir de données non annotées. Il s'agit essentiellement de créer puis de résoudre un problème de prédiction qui utilise les données; par exemple, de retrouver l'ordre de données qui ont été mélangées. Ces dernières années, cette approche a été utilisée avec succès pour entraîner des réseaux de neurones qui extraient des représentations utiles des données, le tout sans aucune annotation. Cependant, notre compréhension de ce qui est appris et de la qualité de cet apprentissage est limitée. Ce document éc

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20

Trabs, Mathias. "Adaptive and efficient quantile estimation." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2014. http://dx.doi.org/10.18452/16998.

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Die Schätzung von Quantilen und verwandten Funktionalen wird in zwei inversen Problemen behandelt: dem klassischen Dekonvolutionsmodell sowie dem Lévy-Modell in dem ein Lévy-Prozess beobachtet wird und Funktionale des Sprungmaßes geschätzt werden. Im einem abstrakteren Rahmen wird semiparametrische Effizienz im Sinne von Hájek-Le Cam für Funktionalschätzung in regulären, inversen Modellen untersucht. Ein allgemeiner Faltungssatz wird bewiesen, der auf eine große Klasse von statistischen inversen Problem anwendbar ist. Im Dekonvolutionsmodell beweisen wir, dass die Plugin-Schätzer der Vert

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21

Misirli, Baysal Feyzan. "Improving efficiency and effectiveness of Bayesian recursive parameter estimation for hydrologic models." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280488.

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There are several sources of uncertainties in hydrologic modeling studies. Conventional deterministic modeling techniques typically ignore most of these uncertainties. However, there has been a growing need for better quantification of the accuracy and precision of hydrologic model predictions. Bayesian Recursive Estimation (BaRE) is an algorithm being developed towards considering these uncertainties for parameter estimation and prediction within an operational setting. This dissertation work evaluated and improved the current version of the algorithm. The methodology was improved using a pro

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22

Chen, Ning. "Bandwidth Efficiency and Power Efficiency Issues for Wireless Transmissions." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10484.

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As wireless communication becomes an ever-more important and pervasive part of our everyday life, system capacity and quality of service issues are becoming more critical. In order to increase the system capacity and improve the quality of service, it is necessary that we pay closer attention to bandwidth and power efficiency issues. Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier modulation technique for high speed data transmission and is generally regarded as bandwidth efficient. However, OFDM signals suffer from high peak-to-average power ratios (PARs) which lead to po

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23

Panneer, Selvan Vaina Malar. "Energy efficiency maximisation in large scale MIMO systems." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/16052.

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The power usage of the communication technology industry and the consistent energy-related pollution are becoming major societal and economic concerns. These concern stimulated academia and industry to an intense activity in the new research area of green cellular networks. Bandwidth Efficiency (BE) is one of the most important metrics to select candidate technologies for next-generation wireless communications systems. Nevertheless, the important goal is to design new innovative network architecture and technologies needed to encounter the explosive development in cellular data demand without

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24

Holland, Cody. "Labor standards and efficiency estimation of farms in the Kansas Farm Management Association." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13607.

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Master of Science<br>Department of Agricultural Economics<br>Michael Langemeier<br>The objectives of this thesis are to examine the labor requirements of Kansas crop and livestock enterprises and farms and the connection between labor efficiency and productivity, and other important farm characteristics including farm size and type. The derived labor requirements are compared to current KFMA labor requirements. Enterprise summary reports and a five year whole-farm panel data set from 1,016 Kansas Farm Management Association (KFMA) farms are used in the analysis. Whole-farm labor requirements

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25

Ould, Moulaye Hachem Bouye Ahmed. "Frontier estimation of efficiency and productivity : some new perspectives for firms and industry." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL12002/document.

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Cette thèse contribue à la littérature de l'efficience et des frontières de production en adoptant une philosophie de gestion pour apporter quelques solutions aux gestionnaires. Un thème principal est abordé dans cette thèse : nous illustrons l'importance de la convexité dans une grande variété de frontières de production. Trois sujets représentent le noyau de cette dissertation: (1) L’utilisation de capacité optimale et la redistribution dans un réseau de branches bancaires allemand; (2) Une comparaison des indices de productivité Malmquist et Hicks Moorsteen, qui se concentrent sur le problè

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26

Holmberg, Johan. "The Relative Efficiency of Swedish Secondary Schools : An estimation using Stochastic Frontier Analysis." Thesis, Umeå universitet, Nationalekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-137601.

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The question of public education is of importance for a society and its citizens as education is contributing to the stability of a democratic society and affects the expected future income levels for the individuals receiving it. A significant share of the Swedish GDP is devoted to the provision of educational services which raises the necessity of monitoring the use of these resources. This thesis endeavoured to estimate a production possibility frontier and the relative efficiency of Swedish upper secondary schools. To accomplish this then Stochastic Frontier Analysis was implemented. Data

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27

Gstach, Dieter. "Technical efficiency in noisy multi-output settings." Inst. für Volkswirtschaftstheorie und -politik, WU Vienna University of Economics and Business, 1998. http://epub.wu.ac.at/1282/1/document.pdf.

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This paper surveys four distinct approaches to frontier estimation of multi-output (and simultaneously multi-input) technologies, when nothing but noisy quantity data are available. Parametrized distributions for inefficiency and noise are necessary for identification of inefficiency, when only cross-sectional data are available. In other respects suitable techniques may differ widely, as is shown. A final technique presented rigorously exploits the possibilities from panel-data by dropping parametrization of distributions as well as functional forms. It is illustrated how this last technique

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28

Birrell, Carole. "Efficiency gains for seasonal adjustment by joint modelling of disaggregated series." School of Mathematics and Applied Statistics - Faculty of Informatics, 2008. http://ro.uow.edu.au/theses/131.

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Governments and businesses use data collected over time as indicators of the social, economic and business conditions of the country. These may then be used for policy and planning decisions, calculation of national accounts and monitoring of economic activity. The production and publication of seasonally adjusted series, in addition to unadjusted figures, is standard practice for government statistical agencies. In general, there are two main approaches to seasonal adjustment, namely a filter-based approach and a model-based approach. Filter-based methods estimate time series components,

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29

Gstach, Dieter. "Small sample performance of two approaches to technical efficiency estimation in noisy multiple output environments." Inst. für Volkswirtschaftstheorie und -politik, WU Vienna University of Economics and Business, 1998. http://epub.wu.ac.at/1190/1/document.pdf.

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This paper provides simulation evidence concerning some statistical properties of two different approaches to technical efficiency estimation for multiple-output production under noisy conditions: The Ray Frontier Approach (RFA) from Löthgren (1997) DEA+ proposed in Gstach (1996). RFA, unlike earlier approaches in the realm of stochastic frontier analysis, is capable of efficiency estimation in the case of multiple outputs as well and lends itself for comparison with DEA+. Several settings with varying sample sizes, noise to signal ratios and mean inefficiencies are investigated. (author's abs

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30

Mehta, Yashree [Verfasser]. "Efficiency and Productivity Estimation with a Hierarchical Data Structure: An Aggregation Perspective / Yashree Mehta." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2021. http://d-nb.info/1232492817/34.

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31

Nalluri, Purnachand. "A fast motion estimation algorithm and its VLSI architecture for high efficiency video coding." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/15442.

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Doutoramento em Engenharia Eletrotécnica<br>Video coding has been used in applications like video surveillance, video conferencing, video streaming, video broadcasting and video storage. In a typical video coding standard, many algorithms are combined to compress a video. However, one of those algorithms, the motion estimation is the most complex task. Hence, it is necessary to implement this task in real time by using appropriate VLSI architectures. This thesis proposes a new fast motion estimation algorithm and its implementation in real time. The results show that the proposed algori

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32

Mascaro-Franjul, Yira J. "A Profit Frontier Estimation of Bank Efficiency after Financial Reform in the Dominican Republic." Connect to resource, 1997. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1215018195.

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33

Negovelova, Nadezda. "Railways regulation in countries of the former USSR: reforms, efficiency estimation and governance choice." Thesis, IMT Alti Studi Lucca, 2009. http://e-theses.imtlucca.it/50/1/Negovelova_phdthesis.pdf.

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Railways restructuring in the countries of the former USSR has practically never been studied before. Meanwhile most of these countries are implementing the same reforms as their western neighbours put in force some years earlier. In this paper, we analyse railway reform trends in these countries and discover a huge diversity of approaches and states of progress. Besides, we make an extended review of literature on railways reforms which covers empirical and institutional papers, theoretical descriptive analyses and, in particular, the reform of Russian railways. Finally, the present study g

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Rajapaksa, Dewage Darshana Peiris. "Floods and property values: A hedonic property and efficiency analysis." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/86975/1/Darshana%20Peiris_Rajapaksa_Thesis.pdf.

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This study investigates the impact floods on property values using the hedonic property price approach and other relevant econometric techniques. The main objectives of this research are to investigate (1) the impact of the release of flood-risk information and the actual floods on property values (2) the temporal behaviour of negative impacts (3) the property submarket behaviour (4) the behaviour of flood affected vs flood non-affected areas and (5) the property market efficiency. The thesis expanded on the existing literature on natural disasters by applying a range of econometric techniq

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Tente, Sebastian D. [Verfasser], and Andreas [Akademischer Betreuer] Behr. "Bank efficiency estimation : methodology and the problem of adequation / Sebastian D. Tente. Betreuer: Andreas Behr." Münster : Universitäts- und Landesbibliothek der Westfälischen Wilhelms-Universität, 2011. http://d-nb.info/1017849137/34.

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Tente, Sebastian [Verfasser], and Andreas [Akademischer Betreuer] Behr. "Bank efficiency estimation : methodology and the problem of adequation / Sebastian D. Tente. Betreuer: Andreas Behr." Münster : Universitäts- und Landesbibliothek der Westfälischen Wilhelms-Universität, 2011. http://nbn-resolving.de/urn:nbn:de:hbz:6-74469572330.

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37

Merwaday, Arvind. "Stochastic Geometry Based Analysis of Capacity, Mobility and Energy Efficiency for Dense Heterogeneous Networks." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2480.

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In recent years, the increase in the population of mobile users and the advances in computational capabilities of mobile devices have led to an exponentially increasing traffic load on the wireless networks. This trend is foreseen to continue in the future due to the emerging applications such as cellular Internet of things (IoT) and machine type communications (MTC). Since the spectrum resources are limited, the only promising way to keep pace with the future demand is through aggressive spatial reuse of the available spectrum which can be realized in the networks through dense deployment of

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Pigurina, Guillermo. "Estimation of the proportions of grass and legume in extrusa of esophageallly-fistulated animals." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/101359.

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Three studies were conducted to evaluate a method for estimating grass and legume fractions in extrusa samples from esophageally-fistulated animals, based on different concentrations of neutral detergent fiber (NDF), Ca and lignin in grasses and legumes. In experiment 1, NDF, Ca and lignin concentrations were measured in mixtures of six combinations of red clover-orchardgrass and alfalfa-tall fescue (100:0; 80:20; 60:40; 40:60; 20:80; 0:100). The R² values were .90, .80 and .22 for Ca, NDF and lignin, respectively. In experiment 2, fresh tall fescue and red clover were collected during 8 d, mi

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Ozhamam, Murat. "Accuracy And Efficiency Improvements In Finite Difference Sensitivity Calculations." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609128/index.pdf.

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Accuracy of the finite difference sensitivity calculations are improved by calculating the optimum finite difference interval sizes. In an aerodynamic inverse design algorithm, a compressor cascade geometry is perturbed by shape functions and finite differences sensitivity derivatives of the flow variables are calculated with respect to the base geometry flow variables. Sensitivity derivatives are used in an optimization code and a new airfoil is designed verifying given design characteristics. Accurate sensitivities are needed for optimization process. In order to find the optimum finite diff

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Bockgård, Niclas. "Groundwater Recharge in Crystalline Bedrock : Processes, Estimation, and Modelling." Doctoral thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4573.

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<p>Kunskap om grundvattenbildningen är nödvändig för att man ska kunna förutsäga konsekvenserna av grundvattenuttag och underjordsbyggande. Grundvattenbildningen i berggrunden är dock svår att uppskatta. Syftet med avhandlingen var att öka förståelsen av grundvattenbildningen i kristallin berggrund, att undersöka hur grundvattenbildningen ska uppskattas samt att utveckla nya modeller för att beskriva grundvattenbildningen. Studien grundades på tre angreppssätt: grundvattendatering med freoner (CFC), geohydrauliska observationer och matematisk modellering.</p><p>Koncentrationerna av CFC-11 och

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Bateni, Amir-Hossein. "Contributions to robust estimation : minimax optimality vs. computational tractability." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAG004.

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En statistique et en théorie de l'apprentissage statistique, on suppose souvent que les échantillons sont distribués indépendamment et identiquement selon une distribution de probabilité de référence. Une approche plus réaliste pourrait consister à relaxer cette hypothèse en permettant à une fraction des échantillons de ne pas nécessairement suivre la distribution de référence. Ces échantillons désobéissants, appelés données aberrantes, peuvent considérablement détériorer la performance des estimateurs classiques. Dans ce travail, nous cherchons à estimer la moyenne des distributions de référe

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Khodyko, D. I. "An estimation of self-organization effects in regional environmental monitoring systems." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/47536.

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The concept of self-organization can be meaningfully appled to regional economies and administrations, which stems from the regions treatment as open socioenvironmental systems of a complex ontology. Specifically, to test for presence of self-organization effects we focus on regional pollution monitoring for air and ground. The proposed simple framework contrasts two modeling approaches to the impact of pollutants' health safety class upon their coverage in regional environmental monitoring programs, namely the treatment of the impact as exogeneous or endogeneous. While confirming the

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Ceccato, Pietro. "Estimation of vegetation water content using remote sensing for the assessment of fire risk occurrence and burning efficiency." Thesis, University of Greenwich, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369147.

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Hu, Nan. "A unified discrepancy-based approach for balancing efficiency and robustness in state-space modeling estimation, selection, and diagnosis." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2224.

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Due to its generality and flexibility, the state-space model has become one of the most popular models in modern time domain analysis for the description and prediction of time series data. The model is often used to characterize processes that can be conceptualized as "signal plus noise," where the realized series is viewed as the manifestation of a latent signal that has been corrupted by observation noise. In the state-space framework, parameter estimation is generally accomplished by maximizing the innovations Gaussian log-likelihood. The maximum likelihood estimator (MLE) is efficient whe

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Lee, Pei-Fen, and 李佩芬. "Technical Efficiency Estimation with Interval Data." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/96328111969308893849.

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碩士<br>國立交通大學<br>工業工程與管理系所<br>97<br>Non-parametric efficiency and productivity analysis assumes deterministic data are properly provided. This underlying assumption however is not always true in reality. In this work, we investigate how to estimate technical efficiency when only interval data are given due to imprecise information. Rather than assuming the probability distributions of data uncertainty, interval data represent the ranges for possible realization. We approach the problem by proposing some necessary properties for proper estimations of efficient frontiers and technical efficiency

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Gharakhani, Siraki Arbi. "Efficiency Estimation of Induction Machines with Limited Measurements." Thesis, 2012. http://spectrum.library.concordia.ca/974563/1/Gharakhani%2DSiraki_PhD_F2012.pdf.

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The first goal of this thesis is to develop a non-intrusive in-situ efficiency estimation technique, which is capable of dealing with unbalanced supplies and under- or overvoltage conditions. For the purpose of this thesis, non-intrusiveness refers to electrical measurements at terminals only, with no mechanical measurements, not even speed. This requirement imposes limitations on the available data, which brings challenges to the efficiency estimation problem. To have the lowest possible intrusion level, only two line voltages and currents are allowed to be measured, and all the required info

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Wang, Hong-Ping, and 王鴻屏. "Estimation of economic efficiency in Taiwan banking industry." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/03980437816849140057.

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碩士<br>淡江大學<br>經濟學系碩士班<br>100<br>In this thesis we use the data envelopment analysis to evaluate the performance of domestic banks incorporating the external operating environment.The efficiency measured could be influenced heavily by the external operating environment, we use four steps to adjust the input variables to obtain accurate efficiency. The first step is to use bank''s inputs and outputs data to estimate the value of the efficiency of domestic banks. The second step is to use the Tobit regression model to separate the impact of environment variables. The third step is to ad

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Ko, Chiun-Cheng, and 柯俊正. "Estimation of local governments public expenditures efficiency in Taiwan." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/fr6b79.

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碩士<br>淡江大學<br>會計學系碩士在職專班<br>103<br>In this study, we apply the theory “One-Stage Stochastic Frontier Analysis ” (Coelli and Battese, 2005) to the estimation of the local government cost frontier. By measuring the degree of deviation between the total cost of public expenditure and the minimum potential costs in ROC local governments to estimate public expenditure efficiency of local governments. The empirical results show that during 2000-2013, the correlation of the average tax per capita, the average disposable income per person per year, and potential public expenditure is negative. Besides

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CHEN, YU-YANG, and 陳宇洋. "Available Bandwidth Estimation Technology for High Efficiency Video Coding." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/e6587h.

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碩士<br>國立中正大學<br>電機工程研究所<br>105<br>In recent years, the service of multimedia transmission becomes universal due to the rapid development of wireless networks. Smart phone and tablet PC become more and more popularization, bring more convenience to people. The transmission of video streaming service for wireless is becoming increasingly popular, and most have a compressed video stream into different specifications to meet users for different bandwidth demand. However, bandwidth detection mechanism is very important in the transmission of video streaming. Using the information of bandwidth detec

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吳啟豪. "Estimation Efficiency Using Cox Model under Acceleration and Lag." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/36218611000152347715.

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碩士<br>國立中正大學<br>數理統計研究所<br>92<br>A general semiparametric hazards regression model for survival data is proposed and studied. This model includes lag effect and acceleration effect, in addition to treatment effect, so-called lag accelerated model.It is flexible in modeling survival data and may yield more accurate or may not prediction of an individual''s survival process. We studied it with simulation to examine the estimation on the treatment effects with Weibull distribution as the underlying distribution. We also investigate the amount of loss of information when partial likeli

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