paper provides a nontechnicul introduction to queuing network concepts, a short introduction to results of research into analytical modeling methodology, and u set of simple but typical examples that illustrute the upplication of that methodology to problems of computer perfbrmunce. The objectives of this paper are to introduce concepts of the theory of queuing networks, to describe an APL prog...

................................................................................................................................................... 9 CHAPTER 1: INTRODUCTION .................................................................................................................. 11 1.1 BACKGROUND .............................................................................................

We present a new hybrid approach to performance management, combining disparate strengths of Reinforcment Learning (RL) with model-based (e.g. queuing-theoretic) approaches. Our method trains nonlinear function approximators using offline RL on data collected while a model-based policy controls the system. By training offline we avoid potentially poor performance in live online training, while ...

To improve customer satisfaction through prompting waiting time is a key way for a call center. The practice shows that the length of prompted waiting time has an important effect on customer satisfaction and the utility of the call center. Based on queuing theory we develop a maximum system utility optimization model with consideration of customer psychology behavior. First, we study the impac...

Queuing is a common phenomenon in theme parks which negatively affects visitor experience and revenue yields. There is thus a need for park operators to infer the real queuing delays without expensive investment in human effort or complex tracking infrastructure. In this paper, we depart from the classical queuing theory approach and provide a data-driven and online approach for estimating the ...

  Network and processing overhead associated with web services is a significant challenge to its performance. As a result, web service providers often announce a service level agreement. This ensures that consumers, who pay for the service, can get the service at a given quality level. In this paper, we study the competition between two providers offering functionally the same web services, whe...

Queuing theory is used to model many systems in different fields in our life; it is used in simple systems and complex ones. The main idea in the application of a mathematical model is to measure the performance measures of the application in order to improve the performance of the system. This paper will present an analytical method and simulation modelin estimation the appropriate model for a...

Typing is one of the basic and prevalent activities in human machine interaction. John (1988, 1996) proposed a PERT (Project-Evaluation-Research-Technique)-based model called TYPIST, which modeled 21 of the 31 behavioral phenomena in transcription typing (Salthouse, 1986, 1987; Gentner, 1983). However, TYPIST can only analyze the typing phenomena along the time dimension; it can not model error...

The concept of reneging has been exploited to a great extent in recent past by the queuing modelers. Reneging leads to loss of potential customers. Keeping into mind this negative impact of reneging, a new queuing model has been developed which deals with retention of reneged customers. In this paper, we have developed an M/M/1/N queuing model which deals with retention of reneged customers. Th...