Optimization of schedule robustness and stability under random machine breakdowns and processing time variability
نویسندگان
چکیده
منابع مشابه
Optimization of network robustness to random breakdowns
We study network configurations that provide optimal robustness to random breakdowns for networks with a given number of nodes N and a given cost—which we take as the average number of connections per node hki. We find that the network design that maximizes f c, the fraction of nodes that are randomly removed before global connectivity is lost, consists of q 1⁄4 1⁄2ðhki 1Þ= ffiffi h p ki ffiffi...
متن کاملStochastic Production Planning under Random Machine Breakdowns
In this paper, we consider a multi-period, multi-product production planning problem where the production rate and the customer service level are random variables due to machine breakdowns. In order to determine robust production plans, constraints are introduced in the stochastic capacitated lot-sizing problem to ensure that a prespecified customer service level is met with high probability. T...
متن کاملA New Approach Generating Robust and Stable Schedules in m-Machine Flow Shop Scheduling Problems: A Case Study
This paper considers a scheduling problem with uncertain processing times and machine breakdowns in industriall/office workplaces and solves it via a novel robust optimization method. In the traditional robust optimization, the solution robustness is maintained only for a specific set of scenarios, which may worsen the situation for new scenarios. Thus, a two-stage predictive algorithm is prop...
متن کاملRobustness-based portfolio optimization under epistemic uncertainty
In this paper, we propose formulations and algorithms for robust portfolio optimization under both aleatory uncertainty (i.e., natural variability) and epistemic uncertainty (i.e., imprecise probabilistic information) arising from interval data. Epistemic uncertainty is represented using two approaches: (1) moment bounding approach and (2) likelihood-based approach. This paper first proposes a ...
متن کاملTime-continuous production networks with random breakdowns
Our main objective is the modelling and simulation of complex production networks originally introduced in [15, 16] with random breakdowns of individual processors. Similar to [10], the breakdowns of processors are exponentially distributed. The resulting network model is of coupled system of partial and ordinary differential equations with Markovian switching and its solution is a stochastic p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IIE Transactions
سال: 2009
ISSN: 0740-817X,1545-8830
DOI: 10.1080/07408170903171035