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Research on Fuzzy Three Stage Tandem Queues

The basic idea is to diminish the crisp queue into fuzzy by applying the α-cut approach technique.  ...  This project intends a general procedure to obtain the membership function of the performance measures in three stage tandem queues when the inter-arrival time and service time are in fuzzy.  ...  Many models have proposed tandem queue based upon the nature of fundamental process. In this paper, we analyse the three stage tandem queues in fuzzy environment with trapezoidal fuzzy number.  ... 
doi:10.35940/ijitee.f1302.0486s419 fatcat:cu2yqyd3frfr7ekgtxvmsqoczu

Fuzzy control of arrivals to tandem queues with two stations

Runtong Zhang, Y.A. Phillis
1999 IEEE transactions on fuzzy systems  
In this paper, a novel approach is presented using fuzzy control. This approach explicitly finds the optimal policy, which up until now has defied analytical solutions.  ...  We consider two queues in tandem, each of which has its own input of arriving customers, which, in turn, may either be accepted or rejected.  ...  INTRODUCTION T HIS paper considers the flow control problem of tandem queues using the fuzzy logic technique [3] . The proposed model is an acyclic queueing network consisting of two tandem queues.  ... 
doi:10.1109/91.771091 fatcat:z3zwlpfx55gfrktqiqnvwc4bti

Page 5728 of Mathematical Reviews Vol. , Issue 96i [page]

1996 Mathematical Reviews  
Kalashnikova], Solving two-level variational inequality (289-294); Ue-Pyng Wen and Sen-Fon Lin, Finding an efficient solution to linear bilevel programming prob- lem: an effective approach (295-306); Keiko  ...  Cruz, Jr., A sliding mode based leader- follower strategy for multi-level hierarchies (393-408); Cameron Tovey. and Alistair Mees, A general approach to deterministic an- nealing (409-421); Paul Tseng,  ... 

Page 1381 of Mathematical Reviews Vol. , Issue 2001B [page]

2001 Mathematical Reviews  
different service-time distribu- tions in tandem queueing networks (71-90); Stanley B.  ...  A numerical example is given to illustrate the results.” For the web version of Mathematical Reviews, see http: //  ... 

Fuzzy service control of queueing systems

Y.A. Phillis, Runtong Zhang
1999 IEEE Transactions on Systems Man and Cybernetics Part B (Cybernetics)  
A novel approach is presented here using fuzzy control to solve these problems.  ...  Six classes, either known in the literature or new, are studied in detail: queueing systems with vacations, single-server queueing systems with and without switching costs, and tandem queueing systems  ...  Acknowledgment The authors would like to thank two anonymous referees for their comments which led to improvements of this paper. PB  ... 
doi:10.1109/3477.775266 pmid:18252325 fatcat:nhrbcnfk7jb2fgdw7j4uocjcw4

Page 8940 of Mathematical Reviews Vol. , Issue 99m [page]

1999 Mathematical Reviews  
116); Baoding Liu, Fuzzy criterion models for inventory systems with partial backorders (117-126); Nutthapol Asadathorn and Xiuli Chao, A decomposition approximation for assembly-disassembly queue- ing  ...  Sudderth, An introduction to gambling theory and its applications to stochastic games (251- 269); S. A. Connell, Jerzy A. Filar, W. W. Szczechla and O. J.  ... 

Page 660 of Mathematical Reviews Vol. , Issue 2004a [page]

2004 Mathematical Reviews  
First, an instructive tandem cluster example is studied to show that a product-form modification method for networks with finite stations can be extended to networks with finite clusters.  ...  Summary: “Call-blocking probabilities are among the key perfor- 90 OPERATIONS RESEARCH, MATHEMATICAL PROGRAMMING 660 mance measures in mobile communications networks.  ... 

Page 5890 of Mathematical Reviews Vol. , Issue 97I [page]

1997 Mathematical Reviews  
, The throughput rate of interchange- able parallel two-stage tandem queue with correlated service times (223-232). 90 ECONOMICS, OPERATIONS RESEARCH, PROGRAMMING, GAMES {Some of the papers are being reviewed  ...  From the text: “The purpose of this paper is to report on the basic features of a recent approach to the theory of continuous trading which is based on the methodologies of stochastic analysis: here we  ... 

Detecting fuzzy amino acid tandem repeats in protein sequences

Marco Pellegrini, M. Elena Renda, Alessio Vecchio
2011 Proceedings of the 2nd ACM Conference on Bioinformatics, Computational Biology and Biomedicine - BCB '11  
In this paper we present PTRStalker, a new algorithm for ab-initio detection of very fuzzy tandem repeats in protein amino acid sequences.  ...  Tandem repetitions within protein amino acid sequences often correspond to regular secondary structures and form multi-repeat 3D assemblies of varied size and function.  ...  if in a particular position there exists a TR according to the precise mathematical definition adopted (see below).  ... 
doi:10.1145/2147805.2147815 dblp:conf/bcb/PellegriniRV11 fatcat:n4bsusrbt5gspmymcvvhomt45y

Ab initio detection of fuzzy amino acid tandem repeats in protein sequences

Marco Pellegrini, Maria Elena Renda, Alessio Vecchio
2012 BMC Bioinformatics  
Results: In this paper we present PTRStalker, a new algorithm for ab-initio detection of fuzzy tandem repeats in protein amino acid sequences.  ...  Conclusions: PTRStalker is able to detect fuzzy tandem repeating structures in protein sequences, with performance beyond the current state-of-the art.  ...  Acknowledgements We wish to thank Michael Pusch and Laura Gioiosa for their insights on membrane proteins, and an anonymous referee for suggestions leading to improved testing.  ... 
doi:10.1186/1471-2105-13-s3-s8 pmid:22536906 pmcid:PMC3402919 fatcat:tzzca5jbj5bfvl5ncmyli4r7ve

Mathematical Analysis of M/M/C Vacation Queueing Model with a Waiting Server and Impatient Customers

Ganesh Sapkota, R. P. Ghimire
2022 Journal of Mathematics and Statistics  
The main purpose of this investigation is to derive (i) the probability distribution functions, (ii) the formulas for the expected number of the customers in the system as well as in queue in the explicit  ...  form, (iii) the expected sojourn time and the expected time spent in waiting in the queue.  ...  to the mathematical treatment.  ... 
doi:10.3844/jmssp.2022.36.48 fatcat:4wmjbyfl3jfi5ofx2zdtje72iu

Node generation and capacity reallocation in open Jackson networks

Imry Rosenbaum, Irad Ben-Gal, Uri Yechiali
2013 IIE Transactions  
Formulation of each method as a mathematical programming problem reveals the structure of the optimal solution for both problems.  ...  There is a large body of literature that addresses optimization problems related to optimal service and arrival rates in queueing models.  ...  Applying the mathematical program (15) in Section 3.1, one obtains a new network with a minimal WIP of 93.6 units, an improvement of 41% with respect to the initial WIP value.  ... 
doi:10.1080/0740817x.2012.677571 fatcat:tbaojwj4kzg6jmktxpztvietly

Network of queues modeling in flexible manufacturing systems : a survey

Lie-Fern Hsu, Charles S. Tapiero, Cinho Lin
1993 Reserche operationelle  
These problems are generally formulated as mathematical programming problems coupled with a queueing network which is used to compute a system's predicted performance.  ...  Thus, they solve the optimal servers assignment mathematical programming problem.  ...  With a state dependent arrivai C=[M, M<m, F, FCFS] S=[m, C, G, S] M=[R and Ca, S, M] K=[PSQ, -] Methodology IBM Same as Buzacott (1976) Balanced queue rule maximizes the expected production.  ... 
doi:10.1051/ro/1993270202011 fatcat:avh4g46ddnbc5llpunc2ydfk3q

Identification of Fuzzy Information in English Interpretation Based on the Digital Elevation Model

Bingjie Zhang, Yiming Liu, Miaochao Chen
2021 Advances in Mathematical Physics  
The improved algorithm reduces the overhead space in the calculation process, reduces the pressure of cells entering and leaving the queue, and improves the calculation efficiency.  ...  With the rapid development of information society, a large amount of vague or uncertain English interpretation information appears in daily life.  ...  fuzzy propositional logic systems, a linear rule approach on intuitionistic fuzzy propositional logic is investigated.  ... 
doi:10.1155/2021/8520633 fatcat:c2vf7bz7xfcqldlkcaimskyud4

A taxonomy for emergency service station location problem

Ayfer Başar, Bülent Çatay, Tonguç Ünlüyurt
2011 Optimization Letters  
We also analyze a variety of papers related to the literature in order to demonstrate the effectiveness of the taxonomy and to get insights for possible research directions. X X X X X X X 62  ...  There has been a growing interest in the subject especially after 1990s.  ...  As the last feature of the model, we consider the type of the model which could be integer programming, dynamic programming, goal programming, fuzzy, non-linear programming or simulation.  ... 
doi:10.1007/s11590-011-0376-1 fatcat:l6iihxvy2jg65frikfgeaxki7m
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