To deal with people assign to job optimization problem in getting into local minima, people assign to job prob...
Suxin Wang 1 , Leizhen Wang 1, 2 , Yongqing Li 3 ,Jianyong Sun 11. Northeastern University at Qinhuangdao, Qinhuangdao Hebei 066004, China2. College of Information Science and Engineering, Northeastern University, Shenyang 110004, China3. Tangshan Normal University, Tangshan Hebei 063000, China
Many real-world problems are dynamic, requiring optimization algorithms being able to continuously track changing optima （optimum） over time. This paper proposes an improved differential evolutionary algorithm using the notion of the near-neighbor effect to determine one individuals neighborhoods, for tracking multiple optima in the dynamic environment. A new mutation strategy using the near-neighbor effect is also presented. It creates individuals by utilizing the stored memory point in its neighborhood, and utilizing the differential vector produced by the ＇near- neighbor-superior＇ and ＇near-neighbor-inferior＇. Taking inspirations from the biological immune system, an immune system based scheme is presented for rapidly detecting and responding to the environmental changes. In addition, a difference- related multidirectional amplification scheme is presented to integrate valuable information from different dimensions for effectively and rapidly finding the promising optimum in the search space. Experiments on dynamic scenarios created by the typical dynamic test instance--moving peak problem, have demonstrated that the near-neighbor and immune system based differential evolution algorithm （NIDE） is effective in dealing with dynamic optimization functions.
The Technical Barriers to Trade （TBT） is an important problem faced to the export of China. Based on the number differences of TBT notifications between countries, we propose the concept and computational method of the technical barrier coefficient. By means of price-production and price-demand functions, a trade model with a developed country and a developing country is designed. The available trade policies such as technical barriers, tariffs and export subsidies are simulated and analyzed. According to the simulation results, several trade strategies to come over technical barriers are suggested. These suggestions were provided to several export enterprises for their export strategy design.
This paper investigates a type of cast planning problem arising in real-life engineering application.The probl...
Ruiyou Zhang and Dingwei Wang are with College of Information Science and Engineering,Key Laboratory of Integrated Automation of Process Industry,Ministry of Education,Northeastern University,Shenyang 110819,China Kebin Lu,Kewei Huang,are with Institute of Automation,Baosteel Technology Center,Shanghai 201900,China
