Search Results - "Dayanik, Savas"
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Detection and identification of changes of hidden Markov chains: asymptotic theory
Published in Statistical inference for stochastic processes : an international journal devoted to time series analysis and the statistics of continuous time processes and dynamic systems (01-07-2022)“…This paper revisits a unified framework of sequential change-point detection and hypothesis testing modeled using hidden Markov chains and develops its…”
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Asymptotically optimal Bayesian sequential change detection and identification rules
Published in Annals of operations research (01-09-2013)“…We study the joint problem of sequential change detection and multiple hypothesis testing. Suppose that the common distribution of a sequence of i.i.d. random…”
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On the optimal stopping problem for one-dimensional diffusions
Published in Stochastic processes and their applications (01-10-2003)“…A new characterization of excessive functions for arbitrary one-dimensional regular diffusion processes is provided, using the notion of concavity. It is shown…”
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Optimal Multiple Stopping of Linear Diffusions
Published in Mathematics of operations research (01-05-2008)“…Motivated by the analysis of financial instruments with multiple exercise rights of American type and mean reverting underlyers, we formulate and solve the…”
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Optimal Stopping Problems for Asset Management
Published in Advances in applied probability (01-09-2012)“…An asset manager invests the savings of some investors in a portfolio of defaultable bonds. The manager pays the investors coupons at a constant rate and…”
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6
Bayesian Sequential Change Diagnosis
Published in Mathematics of operations research (01-05-2008)“…Sequential change diagnosis is the joint problem of detection and identification of a sudden and unobservable change in the distribution of a random sequence…”
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An Adaptive Bayesian Replacement Policy with Minimal Repair
Published in Operations research (01-05-2002)“…In this study, an adaptive Bayesian decision model is developed to determine the optimal replacement age for the systems maintained according to a general…”
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Correction to: Asymptotically optimal Bayesian sequential change detection and identification rules
Published in Annals of operations research (2024)Get full text
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Optimal Stopping of Linear Diffusions with Random Discounting
Published in Mathematics of operations research (01-08-2008)“…We propose a new solution method for optimal stopping problems with random discounting for linear diffusions whose state space has a combination of natural,…”
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10
Dynamic bidding strategies in search-based advertising
Published in Annals of operations research (01-12-2013)“…Search-based advertising allows the advertisers to run special campaigns targeted to different groups of potential consumers at low costs. Google, Yahoo and…”
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Optimal dynamic multi-keyword bidding policy of an advertiser in search-based advertising
Published in Mathematical methods of operations research (Heidelberg, Germany) (01-02-2023)“…Sponsored search advertisement allows advertisers to target their messages to appropriate customer segments at low costs. While search engines are interested…”
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12
Wiener Disorder Problem with Observations at Fixed Discrete Time Epochs
Published in Mathematics of operations research (01-11-2010)“…Suppose that a Wiener process gains a known drift rate at some unobservable disorder time with some zero-modified exponential distribution. The process is…”
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13
Model Misspecification in Discrete Time Bayesian Online Change Detection
Published in Methodology and computing in applied probability (01-03-2023)“…We revisit the classical formulation of the discrete time Bayesian online change detection problem in which the common distribution of an observed sequence of…”
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14
Optimal Stopping Problems for Asset Management
Published in Advances in applied probability (01-09-2012)“…An asset manager invests the savings of some investors in a portfolio of defaultable bonds. The manager pays the investors coupons at a constant rate and…”
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15
Compound Poisson Disorder Problems with Nonlinear Detection Delay Penalty Cost Functions
Published in Sequential analysis (01-04-2010)“…The quickest detection of the unknown and unobservable disorder time, when the arrival rate and mark distribution of a compound Poisson process suddenly…”
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Sequential Sensor Installation for Wiener Disorder Detection
Published in Mathematics of operations research (01-08-2016)“…We consider a centralized multisensor online quickest disorder detection problem where the observation from each sensor is a Wiener process gaining a constant…”
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Compound Poisson Disorder Problem
Published in Mathematics of operations research (01-11-2006)“…In the compound Poisson disorder problem, arrival rate and/or jump distribution of some compound Poisson process changes suddenly at some unknown and…”
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Multisource Bayesian sequential binary hypothesis testing problem
Published in Annals of operations research (01-12-2012)“…We consider the problem of testing two simple hypotheses about unknown local characteristics of several independent Brownian motions and compound Poisson…”
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Poisson Disorder Problem with Exponential Penalty for Delay
Published in Mathematics of operations research (01-05-2006)“…We solve the Poisson disorder problem when the delay is penalized exponentially. Our objective is to detect as quickly as possible the unobservable time of the…”
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Adaptive Poisson Disorder Problem
Published in The Annals of applied probability (01-08-2006)“…We study the quickest detection problem of a sudden change in the arrival rate of a Poisson process from a known value to an unknown and unobservable value at…”
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