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This work is a survey of the average cost control problem for discrete-time Markov processes. The authors have attempted to put together a comprehensive account of the considerable research on thisâ€¦ (More)

- Wei Wu, Sriram Vishwanath, Aristotle Arapostathis
- IEEE Transactions on Information Theory
- 2007

This correspondence is motivated by two different scenarios. The first is a cognitive radio system where a cognitive radio knows a ldquodumbrdquo radio's message and the second is a sensor network inâ€¦ (More)

- Aristotle Arapostathis, Steven I. MarcusDepartment
- 2001

We consider partially observable Markov decision processes with finite or countably infinite (core) state and observation spaces and finite action set. Following a standard approach, an equivalentâ€¦ (More)

A bstract . We study the ergodic control problem of switching diffusions representing a typical hybrid system that arises in numerous applications such as fault-tolerant control systems, flexibleâ€¦ (More)

- Y.-J. Shin, Evan T Powers, Matt Grady, Aristotle Arapostathis
- 2006 IEEE Power Engineering Society Generalâ€¦
- 2006

Summary form only given. For reasonable power quality assessment of transient disturbances in electric power systems, new transient power quality indices are developed based on a signal processingâ€¦ (More)

- Hyuk-Jae Lee, Aristotle Arapostathis, Steven I. Marcus
- 1987 American Control Conference
- 1987

We characterize the equivalence of single-input, single-output, discrete-time nonlinear systems to linear ones, via a state coordinate change and with or without feedback. Four cases areâ€¦ (More)

- Kyun K. Lee, Aristotle Arapostathis
- 1986 American Control Conference
- 1986

We investigate the problem of smooth feedback stabilization of nonlinear Systems with (Simply) stable uncontrolled dynamics. Our analysis combines classical concepts from Lyapunov's theory ofâ€¦ (More)

- Wei Wu, Aristotle Arapostathis
- Proceedings of the 2005, American Controlâ€¦
- 2005

In this paper, we examine a discrete-time stochastic control problem in which there are a number of observation options available to the controller, with varying associated costs. The observationâ€¦ (More)

- Taekhyun Kim, E. J. Powers, W. Mack Grady, Aristotle Arapostathis
- 2007 IEEE Instrumentation & Measurementâ€¦
- 2007

Higher-order spectra such as the bispectrum/bicoherence are widely used for the analysis of various nonlinear phenomena. However, the traditional bicoherence definition fails when its 'phaseâ€¦ (More)

- Hyeonsu Park, Byungchul Jang, E C Powers, W. Mack Grady, Aristotle Arapostathis
- 2007 IEEE Power Engineering Society Generalâ€¦
- 2007

Since a damaged or abnormal-state machine often generates highly nonlinear signals, it is desirable to use a tool that can effectively detect and analyze nonlinear signatures. The bicoherence hasâ€¦ (More)