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Ditemukan 167 dokumen yang sesuai dengan query
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Touri, Behrouz
"The thesis deals with averaging dynamics in a multiagent networked system, which is a main mechanism for diffusing the information over such networks. It arises in a wide range of applications in engineered physical networks (such as mobile communication and sensor networks), as well as social and economic networks. The thesis provides in depth study of stability and other phenomena characterizing the limiting behavior of both deterministic and random averaging dynamics. By developing new concepts, and using the tools from dynamic system theory and non-negative matrix theory, several novel fundamental results are rigorously developed. These contribute significantly to our understanding of averaging dynamics as well as to non-negative random matrix theory."
Berlin: [, Springer], 2012
e20398714
eBooks  Universitas Indonesia Library
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Priatama Arifin
"Skripsi ini merupakan penelitian pertama yang dilakukan untuk menganalisa dampak kepemilikan terhadap efisiensi teknis industri semen Indonesia. Dengan mengambil sample data tahun 2003-2011, penelitian ini ingin melihat dampak dari kepemilikan terhadap efisiensi teknis industry semen di Indonesia. Untuk mengukur tingkat efisiensi teknis industri, penelitian ini menggunakan metode Stochastic Frontier Analysis (SFA). Sedangkan untuk mengetahui dampak kepemilikan, penelitian ini menggunakan variabel dummy kepemilikan yang kemudian diregresi terhadap nilai efisiensi teknis industri dengan menggunakan metode Generalized Least Square (GLS). Penelitian ini menemukan bahwa kepemilikan asing berpengaruh positif dan signifikan terhadap efisiensi teknis pada industri semen Indonesia.

This thesis is the first study to analyze the effect of ownership on the technical efficiency of the Indonesian cement industry by using data set on plant level from 2003 to 2011. Stochastic Frontier Analysis model is used to estimate the technical efficiency level of the industry. Furthermore, the ownership variable is regressed with the technical efficiency through Generalized Least Square Method. The study conclude that that foreign ownership has a positive and significant effect on technical efficiency score of the Indonesian cement industry.
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Depok: Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
S58704
UI - Skripsi Membership  Universitas Indonesia Library
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"This book constitutes the refereed proceedings of the 19th International Conference on Analytical and Stochastic Modelling Techniques and Applications, ASMTA 2012, held in Grenoble, France, in June 2012. The 20 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on queueing systems; networking applications, Markov chains, stochastic modelling."
Berlin : Springer-Verlag, 2012
e20410486
eBooks  Universitas Indonesia Library
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Shu-Jun, Liu
"This book treats methods inspired by attempts to understand the seemingly non-mathematical question of bacterial chemotaxis and their application in other environments. The text presents significant generalizations on existing stochastic averaging theory developed from scratch and necessitated by the need to avoid violation of previous theoretical assumptions by algorithms which are otherwise effective in treating these systems. Coverage is given to four main topics.
Stochastic averaging theorems are developed for the analysis of continuous-time nonlinear systems with random forcing, removing prior restrictions on nonlinearity growth and on the finiteness of the time interval. The new stochastic averaging theorems are usable not only as approximation tools but also for providing stability guarantees.
Stochastic extremum-seeking algorithms are introduced for optimization of systems without available models. Both gradient- and Newton-based algorithms are presented, offering the user the choice between the simplicity of implementation (gradient) and the ability to achieve a known, arbitrary convergence rate (Newton).
The design of algorithms for non-cooperative/adversarial games is described. The analysis of their convergence to Nash equilibria is provided. The algorithms are illustrated on models of economic competition and on problems of the deployment of teams of robotic vehicles.
Bacterial locomotion, such as chemotaxis in E. coli, is explored with the aim of identifying two simple feedback laws for climbing nutrient gradients. Stochastic extremum seeking is shown to be a biologically-plausible interpretation for chemotaxis. For the same chemotaxis-inspired stochastic feedback laws, the book also provides a detailed analysis of convergence for models of nonholonomic robotic vehicles operating in GPS-denied environments.
The book contains block diagrams and several simulation examples, including examples arising from bacterial locomotion, multi-agent robotic systems, and economic market models.
Stochastic averaging and extremum seeking will be informative for control engineers from backgrounds in electrical, mechanical, chemical and aerospace engineering and to applied mathematicians. Economics researchers, biologists, biophysicists and roboticists will find the applications examples instructive."
London: Springer-Verlag, 2012
e20418747
eBooks  Universitas Indonesia Library
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Chen, Jie
"This book offers in-depth study of the change point problem, and an examination of change point analysis of common statistical models. Change point problems are encountered in economics, finance, medicine, signal processing, and geology, to mention a few"
New York: [, Springer], 2012
e20418952
eBooks  Universitas Indonesia Library
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"Asymptotic analysis of stochastic stock price models is the central topic of the present volume. Special examples of such models are stochastic volatility models, that have been developed as an answer to certain imperfections in a celebrated Black-Scholes model of option pricing. In a stock price model with stochastic volatility, the random behavior of the volatility is described by a stochastic process. For instance, in the Hull-White model the volatility process is a geometric Brownian motion, the Stein-Stein model uses an Ornstein-Uhlenbeck process as the stochastic volatility, and in the Heston model a Cox-Ingersoll-Ross process governs the behavior of the volatility. One of the author's main goals is to provide sharp asymptotic formulas with error estimates for distribution densities of stock prices, option pricing functions, and implied volatilities in various stochastic volatility models. The author also establishes sharp asymptotic formulas for the implied volatility at extreme strikes in general stochastic stock price models."
Berlin: [Springer-Verlag, ], 2012
e20419048
eBooks  Universitas Indonesia Library
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"This monograph focuses on the construction of regression models with linear and non-linear constrain inequalities from the theoretical point of view. This volume analyses the properties of regression with inequality constrains, investigating the flexibility of inequality constrains and their ability to adapt in the presence of additional a priori information The implementation of inequality constrains improves the accuracy of models, and decreases the likelihood of errors. Based on the obtained theoretical results, a computational technique for estimation and prognostication problems is suggested. "
New York: [Springer, ], 2012
e20419174
eBooks  Universitas Indonesia Library
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Schuss, Zeev
"This book offers an analytical rather than measure-theoretical approach to the derivation of the partial differential equations of nonlinear filtering theory. The basis for this approach is the discrete numerical scheme used in Monte-Carlo simulations of stochastic differential equations and Wiener's associated path integral representation of the transition probability density. Furthermore, it presents analytical methods for constructing asymptotic approximations to their solution and for synthesizing asymptotically optimal filters. It also offers a new approach to the phase tracking problem, based on optimizing the mean time to loss of lock. The book contains exercises and worked-out examples aimed at illustrating the methods of mathematical modeling and performance analysis of phase trackers.
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New York: [Springer, ], 2012
e20419201
eBooks  Universitas Indonesia Library
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Paulo Eduardo, Oliveira
"The book concerns the notion of association in probability and statistics. Association and some other positive dependence notions were introduced in 1966 and 1967 but received little attention from the probabilistic and statistics community. The interest in these dependence notions increased in the last 15 to 20 years, and many asymptotic results were proved and improved.
The goal of this book is to bring together the bulk of these results, presenting the theory in a unified way, explaining relations and implications of the results. It will present basic definitions and characterizations, followed by a collection of relevant inequalities. These are then applied to characterize almost sure and weak convergence of sequences of associated variables. It will also cover applications of positive dependence to the characterization of asymptotic results in nonparametric statistics. "
Berlin: [Springer-Verlag, ], 2012
e20419281
eBooks  Universitas Indonesia Library
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"Based on presentations given at the workshop Numerical methods in finance held at the INRIA Bordeaux (France) on June 1-2, 2010, this book provides an overview of the major new advances in the numerical treatment of instruments with American exercises. Naturally it covers the most recent research on the mathematical theory and the practical applications of optimal stopping problems as they relate to financial applications. By extension, it also provides an original treatment of Monte Carlo methods for the recursive computation of conditional expectations and solutions of BSDEs and generalized multiple optimal stopping problems and their applications to the valuation of energy derivatives and assets. The book is geared toward quantitative analysts, probabilists, and applied mathematicians interested in financial applications.
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Berlin: Springer, 2012
e20419967
eBooks  Universitas Indonesia Library