Dissertations / Theses: 'Empirical process theory'

1

Spiliotis, Aristotelis. "An empirical investigation of the money supply process : the case of Greece." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306543.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gourlay, Adrian R. "The diffusion of process innovation in the UK financial sector : an empirical analysis of automated teller machine (ATM) diffusion." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/7082.

Full text

Abstract:

Recent policy initiatives have identified that the diffusion of innovation constitutes an important component in technical change and progress and is the impetus behind changes in firm productivity. To date, however, the main emphasis of economists has been on the diffusion of process innovations in the industrial sector with diffusion in the financial sector either ignored or, at best, summarised by a number of stylised facts relating to the spread of information. The objective of this thesis is to explore the inter-firm determinants of ATM adoption and diffusion in the UK financial sector and identify firm-specific and market factors in the diffusion process. The empirical analysis draws on duration analysis which represents the current state-of-art modelling approach to inter-firm diffusion. This approach conceptualises inter-firm diffusion as a cross-section of durations of nonadoption from which, most importantly, hypothesised factors (or `covariates') can be examined by their significance or otherwise on the conditional probability of adoption. The main findings of this thesis support the stylised fact often made in the diffusion literature that the inter-firm diffusion curve is sigmoid and characterised by a nonmonotonic hazard function. Furthermore the empirical analysis supports the hypothesis that firm-specific characteristics and expectations have played a crucial role in the interfirm diffusion of ATMs. In addition, the results indicate that the diffusion of ATMs in the UK has been characterised by the existence of positive network externalities. The results are also shown to be robust across a number of model specifications and assumptions concerning the time-path of covariates.

APA, Harvard, Vancouver, ISO, and other styles

3

Philips, Petra Camilla, and petra philips@gmail com. "Data-Dependent Analysis of Learning Algorithms." The Australian National University. Research School of Information Sciences and Engineering, 2005. http://thesis.anu.edu.au./public/adt-ANU20050901.204523.

Full text

Abstract:

This thesis studies the generalization ability of machine learning algorithms in a statistical setting. It focuses on the data-dependent analysis of the generalization performance of learning algorithms in order to make full use of the potential of the actual training sample from which these algorithms learn.¶ First, we propose an extension of the standard framework for the derivation of generalization bounds for algorithms taking their hypotheses from random classes of functions. This approach is motivated by the fact that the function produced by a learning algorithm based on a random sample of data depends on this sample and is therefore a random function. Such an approach avoids the detour of the worst-case uniform bounds as done in the standard approach. We show that the mechanism which allows one to obtain generalization bounds for random classes in our framework is based on a “small complexity” of certain random coordinate projections. We demonstrate how this notion of complexity relates to learnability and how one can explore geometric properties of these projections in order to derive estimates of rates of convergence and good confidence interval estimates for the expected risk. We then demonstrate the generality of our new approach by presenting a range of examples, among them the algorithm-dependent compression schemes and the data-dependent luckiness frameworks, which fall into our random subclass framework.¶ Second, we study in more detail generalization bounds for a specific algorithm which is of central importance in learning theory, namely the Empirical Risk Minimization algorithm (ERM). Recent results show that one can significantly improve the high-probability estimates for the convergence rates for empirical minimizers by a direct analysis of the ERM algorithm. These results are based on a new localized notion of complexity of subsets of hypothesis functions with identical expected errors and are therefore dependent on the underlying unknown distribution. We investigate the extent to which one can estimate these high-probability convergence rates in a data-dependent manner. We provide an algorithm which computes a data-dependent upper bound for the expected error of empirical minimizers in terms of the “complexity” of data-dependent local subsets. These subsets are sets of functions of empirical errors of a given range and can be determined based solely on empirical data. We then show that recent direct estimates, which are essentially sharp estimates on the high-probability convergence rate for the ERM algorithm, can not be recovered universally from empirical data.

APA, Harvard, Vancouver, ISO, and other styles

4

Tong, Zhigang. "Statistical Inference for Heavy Tailed Time Series and Vectors." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35649.

Full text

Abstract:

In this thesis we deal with statistical inference related to extreme value phenomena. Specifically, if X is a random vector with values in d-dimensional space, our goal is to estimate moments of ψ(X) for a suitably chosen function ψ when the magnitude of X is big. We employ the powerful tool of regular variation for random variables, random vectors and time series to formally define the limiting quantities of interests and construct the estimators. We focus on three statistical estimation problems: (i) multivariate tail estimation for regularly varying random vectors, (ii) extremogram estimation for regularly varying time series, (iii) estimation of the expected shortfall given an extreme component under a conditional extreme value model. We establish asymptotic normality of estimators for each of the estimation problems. The theoretical findings are supported by simulation studies and the estimation procedures are applied to some financial data.

APA, Harvard, Vancouver, ISO, and other styles

5

Tolar, Martin. "Satisficing versus optimising behaviour in the non-durable consumption expenditure decision making process : an empirical examination of Australian data for the period 1976(1) - 1994(2) /." [Campbelltown, N.S.W. : The Author], 1995. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030703.130007/index.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Nordegren, Annica. "Design–theoretical and empirical, A research project inn design theory including the devolpment of a prototype for a symbol system that represents tastes of wine." Doctoral thesis, KTH, School of Architecture, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93.

Full text

Abstract:

The thesis presents a research project in graphic design including the development of a symbol system that represents tastes of wine as consumer information. The thesis has three main chapters; design, theory and empirical foundation.

The design chapter clarifies the design concept and its evolution from a traditional standpoint to its present state in the international area of design research as design theory.

The theoretical chapter presents a map of concepts in order to explain problems and practical solutions in the design process. The concepts are based on the philosophical ideas of Ernst Cassirer and Ludwig Wittgenstein, and concern interpretation of sense information, symbols and signs, picture and image. The design of the symbol system concerns the experience of taste, as a translation from words to pictures.

The empirical chapter comprehends both a description of the design process and of the empirical research. The method used is prototyping with a reference group of branch experts. The empirical research has evaluated the possibility to interpret, learn, use and understand the symbol system. The method used is a survey with questionnaires to a group of wine consumers

APA, Harvard, Vancouver, ISO, and other styles

7

García-Zelada, David. "Aspects géométriques et probabilistes des gaz de coulomb Concentration for Coulomb gases on compact manifolds A large deviation principle for empirical measures on Polish spaces: Application to singular Gibbs measures on manifolds Extremal particles of two-dimensional Coulomb gases and random polynomials on a positive background Edge fluctuations for a class of two-dimensional determinantal Coulomb gases." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLED046.

Full text

Abstract:

Nous explorons des modèles probabilistes appelés gaz de Coulomb. Ils apparaissent dans différents contextes comme par exemple dans la théorie des matrices aléatoires, l'effet Hall quantique fractionnaire de Laughlin et les modèles de supraconductivité de Ginzburg-Landau. Dans le but de mieux comprendre le rôle de l'espace ambiant, nous étudions des versions géométriques de ce système. Nous exploitons trois structures sur ce modèle. La première est définie par la interaction électrostatique provenant de la loi de Gauss. La deuxième est la structure déterminantale disponible que pour des valeurs précises de la température. La troisième est le principe de minimisation de l'énergie libre en physique, qui permet étudier des modèles plus généraux. Ces travaux conduisent à des nombreux questions ouvertes et à une famille de modèles d'intérêt
We explore probabilistic models usually called Coulomb gases. They arise naturally in mathematics and physics. We can mention random matrix theory, the Laughlin fractional quantum Hall effect and the Ginzburg-Landau systems of superconductivity. In order to better understand the role of the ambient space, we study geometric versions of such systems. We exploit three structures. The first one comes from the electrostatic nature of the interaction given by Gauss's law. The second one is the determinantal structure which appears only for a specific temperature. The third one is the minimization of the free energy principle, coming from physics which gives us a tool to understand more general models. This work leads to many open questions on a whole family of models which can be of independent interest.)

APA, Harvard, Vancouver, ISO, and other styles

8

Lu, Min. "A Study of the Calibration Regression Model with Censored Lifetime Medical Cost." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/math_theses/14.

Full text

Abstract:

Medical cost has received increasing interest recently in Biostatistics and public health. Statistical analysis and inference of life time medical cost have been challenging by the fact that the survival times are censored on some study subjects and their subsequent cost are unknown. Huang (2002) proposed the calibration regression model which is a semiparametric regression tool to study the medical cost associated with covariates. In this thesis, an inference procedure is investigated using empirical likelihood ratio method. The unadjusted and adjusted empirical likelihood confidence regions are constructed for the regression parameters. We compare the proposed empirical likelihood methods with normal approximation based method. Simulation results show that the proposed empirical likelihood ratio method outperforms the normal approximation based method in terms of coverage probability. In particular, the adjusted empirical likelihood is the best one which overcomes the under coverage problem.

APA, Harvard, Vancouver, ISO, and other styles

9

Mayer, Ulrike [Verfasser], and Henryk [Akademischer Betreuer] Zähle. "Functional weak limit theorem for a local empirical process of non-stationary time series and its application to von Mises-statistics / Ulrike Mayer ; Betreuer: Henryk Zähle." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://d-nb.info/119175555X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mayer, Ulrike Verfasser], and Henryk [Akademischer Betreuer] [Zähle. "Functional weak limit theorem for a local empirical process of non-stationary time series and its application to von Mises-statistics / Ulrike Mayer ; Betreuer: Henryk Zähle." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://nbn-resolving.de/urn:nbn:de:bsz:291--ds-281226.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Eom, Kyong Shik. "Volume, number of trades, and price adjustment process : theory and empirical properties /." Diss., 1997. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:9814957.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Hour, Yi Nain, and 侯怡年. "The Empirical Test between Firm Size and Effective Tax Rates-- The study of Political Process Theory." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/58103781899423239853.

Full text

Abstract:

碩士
國立中山大學
企業管理研究所
82
In the hypothesis of Positive Accounting Theory, there are two oppositive hypotheses discussing whether firm political procedures are successful or not: 1. Political Influence theory: Expounds that the firm size is negatively related to effective tax rate. 2. Political cost theory:Expounds that the firm size is positively realted to the effective tax rate. The main purpose of this research is to investigate whether the relationship between the firm size in Taiwan and the effective tax rate is the positive relation of political cost theory or the negative realtion of political effective theory; meanwhile, to investigate if it is suitable to directly measure the political process of firm with effective tax rate ? The results of this reseach are as follows: 1. The Single Equation Basic Model:This model is through the direct detection of the relation between the firm size and effective tax rate, the result is found is found generally in in conformity with the statement of political cost. 2. The Path Model:The result, which shows that the resulted firm size and the effective tax rate positively related to each other, may be induced from the two interferences of net operating losses and times interest earned and the direct effect; The result, which shows the firm size and the efective tax rate are negatively related may be owing to Perference and Tax credit. 3. the Path Coefficient:In the aspect of the oppposite importance of all variables, the net operating losses doesn''t result in significant influence toward the caused biase; however, the times interest earned has greater influence on the contrary. As a conlusion, when one is measuring the political process of firm, one should exclude the two interferences from the effective tax rate.

APA, Harvard, Vancouver, ISO, and other styles

13

Philips, Petra. "Data-Dependent Analysis of Learning Algorithms." Phd thesis, 2005. http://hdl.handle.net/1885/47998.

Full text

Abstract:

This thesis studies the generalization ability of machine learning algorithms in a statistical setting. It focuses on the data-dependent analysis of the generalization performance of learning algorithms in order to make full use of the potential of the actual training sample from which these algorithms learn.¶ First, we propose an extension of the standard framework for the derivation of generalization bounds for algorithms taking their hypotheses from random classes of functions. ... ¶ Second, we study in more detail generalization bounds for a specific algorithm which is of central importance in learning theory, namely the Empirical Risk Minimization algorithm (ERM). ...

APA, Harvard, Vancouver, ISO, and other styles

14

Yu-SyuanSih and 絲雨瑄. "On the Improvement of E-Invoice Process from Perspectives of Innovation Diffusion Theory, Environment Variables and Consumers’ Risk Attitude：An Empirical Study of Taiwan." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/69g722.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Strahler, Reinhold. "Coming to faith in Christ : case studies of muslims in Kenya." Thesis, 2009. http://hdl.handle.net/10500/3527.

Full text

Abstract:

This thesis analyses the conversion processes of 17 urban Muslims in Kenya who decided to follow Jesus Christ. It first describes conversion from a multidisciplinary perspective by introducing sociological, psychological, anthropological, theological and missiological understandings of such a change in religious affiliation. Next in-depth interviews are analysed using principles of grounded theory, where new theory is developed by interaction between data from reality, the analysis and existing theories (abductive reasoning). The main findings are that the conversion of Muslims who accept Jesus Christ as Saviour and Lord is a process that develops over a period of time through phases with a cognitive and an affective dimension. Changes with regard to convictions and attitudes take place simultaneously on several properties or ‘layers’ of both dimensions. The process is influenced by significant factors in the form of causal and intervening conditions, resulting in consequences for the convert in the form of a transformation as well as in changed relationships with the community. Gender, socio-economic level, education as well as the community from which the converts come influence the process. In order to describe the complex dynamics that are at work in such conversion processes of Muslims, a Matrix of Conversion Processes is developed in which the multiple movements of a convert on the two dimensions are put in relation to six chronological phases. A matrix of different types of conversion processes and the description of four typical processes emerge from the analysis. In order to facilitate conversion processes, cognitive and affective elements need to be addressed together. The interaction between different factors, the will-power of the person and the influence of God determine the development, an understanding that is relevant for conversion studies, as well as for missiology and the missionary task of the church in Kenya and beyond.
Christian Spirituality, Church History and Missiology
D.Th. (Missiology)

APA, Harvard, Vancouver, ISO, and other styles

16

Lim, Sung Jin. "A study of text-guided preaching in the Korean Church context." Thesis, 2008. http://hdl.handle.net/2263/25013.

Full text

Abstract:

I have been for years now teaching homiletical theories and methods to students at World Mission University in Los Angeles, California. I have been aware of certain problems in the theory and practice of preaching prevailing in the Korean church. One of the most critical issues is that Korean preaching largely consists of the topical-deductive method. Another is that a hierarchical structure enforces the gap between the preacher and the congregation. The study explores, within the framework of the theologian Johannes van der Ven’s empirical-theological research program, text-guided preaching, based on the American homiletician Thomas G. Long’s theory that the sermon should regenerate the impact of the biblical text, in the context of the Korean church and its tradition of preaching. The study looks at the history and characteristics of Korean preaching (Chapter 2) and also at the emergence, characteristics, and styles of new American preaching (Chapter 3). The empirical component of the study deals with a case study involving a preaching workshop for theological students as an illustration of the reception by Korean preachers of the proposed theory for preaching (Chapter 5). My proposal is that text-guided preaching (described in Chapter 4) will benefit those Korean preachers and students willing a homiletical exploration. The basic premise of this model of preaching is that a text seeks to impact its reader; or, to use Paul Ricoeur’s words, confronts its readers with a particular world of understanding; or, from the standpoint of speech-act theory, performs multiple illocutionary acts. Text-guided preaching as it is presented in this study incorporates the notion of application, a notion introduced to hermeneutics by Hans-Georg Gadamer that says that understanding a text always aims at some practical application. Homiletically refined by H. J. C. Pieterse and C. J. A. Vos, it means that the preacher’s understanding of a biblical text is partly determined by the particular, historically contingent situation of the congregation. This study adopts an empirical-theological approach to practical theology. As a part of the theological induction phase of the empirical-theological cycle, a preaching workshop was conducted with eight student-participants. The case study produced some significant results. The clearest finding has to do with the task of interpreting the life situation of the congregation. It leads to the conclusion that theological education at World Mission University has to be modified to include trainings that would produce competent interpreters of the cultural context of Christian life.
Thesis (PhD (Practical Theology))--University of Pretoria, 2008.
Practical Theology
PhD
unrestricted

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic 'Empirical process theory'

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