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In industrial process field, the integrations of model predictive control (MPC) and hierarchical control system are widely used. A new double-layered model predictive control strategy with dynamic trajectory calculation (DTC) in its upper layer is presented in this paper, which can be applied in the midst of a hierarchical control system. DTC includes a feasibility stage with prioritized constraints...
Most real-world optimization problems are dynamic in nature. To deal with the optimization problems in a dynamic environment, a general framework inspired from immune system is proposed. Three types of subpopulations mimicking the states of B-cells are introduced. Among them, innate population globally explores the promising area, while adaptive population locally searches the optima, and the memory...
The development of social networks changes the way of information diffusion and the means of selling and buying. In this paper we study the problem of online promoting for a product with limited budget in the competitive propagation social networks, we called this problem competitive recommendation marketing strategy (CRM). The key of CRM problem is to find out a fixed number of target nodes as the...
The paper studies a two-machine flowshop with unavailability interval on the second machine. Contrary to most literature where machines are available at all times, this means that the machine may not always be available during the scheduling period, it needs a constant time to maintain the machine after completing a fixed number of jobs at most. The objective is to find the optimal job schedule such...
It is difficult for the control system to get expected effect because of factors such as time-varying and non-linear. Considering the fact, a new algorithm is put forward, in which parameters of the PID control parameters are optimized by BP and RBF nets. By using MATLAB as the simulation tool, this new PID auto-tuning algorithm is simulated and researched. The simulation results show that this algorithm...
To reduce the costs and lead time for shipbuilding, an integrated system is proposed to optimize a long term production plan, as well as the node plan and the physical distribution plan. A hierarchical architecture and the object-oriented technology are used to incorporate all critical information such as production capacities. A physical distribution algorithm is developed assuming the material quantities...
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