Network reliability maximization for stochastic-flow network subject to correlated failures using genetic algorithm and tabu search

2017 ◽  
Vol 50 (7) ◽  
pp. 1212-1231 ◽  
Author(s):  
Cheng-Ta Yeh ◽  
Yi-Kuei Lin ◽  
Jo-Yun Yang
Author(s):  
Shin-Guang Chen

A stochastic-flow network (SFN) is a network whose flow has stochastic behavior or probabilistic multi-states. A timed stochastic-flow network (TSFN) is a SFN whose flow spends time to go through the network. Traditionally, the evaluation of network reliability does not consider time consumption for the flow to get through the network. However, there are lots of daily-life networks which can be regarded as TSFNs, such as the transportation network, the production network, etc. Their flow spends time to get through the network, and they are not yet explored in the literature. This paper proposes approaches to evaluate the reliability of such networks. Some numerical examples are discussed to illustrate the proposed method.


2019 ◽  
Vol 68 (3) ◽  
pp. 954-970 ◽  
Author(s):  
Hector Cancela ◽  
Leslie Murray ◽  
Gerardo Rubino

2020 ◽  
Vol 8 (4) ◽  
pp. 01-10
Author(s):  
Noha Hamdy ◽  
Moatamad Refaat Hassan ◽  
Mohamed Eid Hussein

The robust design problem in a flow network is defined as search optimal node capacity that can be assigned such that the network still survived even under the node’s failure. This problem is considered as an NP-hard. So, this paper proposes a genetic algorithm-based approach to solve it for a flow network with node failure. The proposed based genetic approach is used to assign the optimal capacity for each node to minimize the total capacities and maximize the network reliability. The proposed approach takes the capacity for each critical node should have the maximum capacity (usually equals to the demand value) to alleviate that the reliability to drop to zero. Three network examples are used to show the efficiency of our algorithm. Also, the results obtained by our approach are compared with those obtained by the previous approximate algorithm.


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