We review a class of online planning algorithms for deterministic and stochastic optimal control problems, modeled as Markov decision processes. At each discrete time step, these algorithmsmaximize the predicted value of planning policies from the current state, and apply the first action of the best policy found. An overall recedinghorizon algorithm results, which can also be seen as a type of...

We review a class of online planning algorithms for deterministic and stochastic optimal control problems, modeled as Markov decision processes. At each discrete time step, these algorithms maximize the predicted value of planning policies from the current state, and apply the first action of the best policy found. An overall recedinghorizon algorithm results, which can also be seen as a type o...

Abstract The uncertain production-inventory problem with deteriorating items is investigated and an optimal control model developed in the present paper. perturbed by canonical process. Based on uncertainty theory, optimistic-value optimal-based established. study aims to find optimistic value of revenue at a certain confidence level. theory used obtain equation optimality. Using Hamilton–Jacob...

abstract background: the aim of this study was to investigate the various aspects of illness perceptions about breast cancer in affected patients. methods: a cross-sectional study enrolled 140 patients with breast cancer in their chemotherapy period within 14 months. the revised illness perception questionnaire (revised ipq) was used to assess the disease representations of breast cancer. the d...

To improve the performance of geographically distributed cosimulation, we propose a concept called hierarchically grouped message. The concept improves cosimulation performance, preserving the cosimulation accuracy, by hierarchically grouping messages transferred between simulators in a short period of simulated time into a single physical message, thereby reducing the number of physical messag...

Recent research by Institute affiliates on the role of education in economic growth has produced two works which run counter to current thought. One study challenges standard measures of the value of schooling and concludes on the optimistic note that its full value has been underrated. The other study analyzes data on college enrollment over the past decade and concludes, on a pessimistic note...