optimization of regions 中文意思是什麼
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On the optimization of the spatial structure of tourism development in the provincial border regions of china
我國省際邊界地區旅遊經濟發展的空間結構優化方略 -
In the first phase, users are partitioned into fuzzy regions according to quantity supplied and the length of paths using genetic algorithm ; in the second phase the global optimization is carried out by the hybrid genetic algorithm with 2d variable - length chromosomes and corresponding genetic operators
在第1階段，使用遺傳演算法對客戶按供應量和路徑長度進行模糊分區；在第2階段，採用二維變長染色體編碼及相應的遺傳運算元進行混合遺傳演算法的全局優化。 -
Deposits concentrated regions existing large and super - large deposits are model units, in contrast, deposits concentrated regions with medium and small deposits are extendedmodel units, anomaly concentrated regions are assessment units. our aim is the prediction of large and super - large deposits, and optimization of strategic targets
以大型、超大型礦床所在的礦床密集區為模型單元，以中、小型礦床所在的礦床密集區為擴展模型單元，以各類異常所在的異常密集區為預測單元，開展大型、超大型礦床密集區預測，優選戰略靶區。 -
Depending on stratagem of continuable development, development programming of states or regions should go in for correspond development of nature, human being, society and economy, to be brief, correspond development of multi - object, so perfect means of resolving the settle of problems is to establish multi - object optimization models restricted by dynamic input - output equation
社會經濟系統是一個復雜的動態大系統，在可持續發展戰略指導下，一個國家和地區的發展規劃應追求的是自然、人、社會、經濟的協調發展，即多個目標的協調發展。因此，建立一個以動態投入產出方程為核心約束的多目標優化模型成為解決此類問題的理想方法。 -
But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education
但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。 -
Finally, an idea is put forward that the optimization of standard formation and the construction of a scientific and rational expenditure provision standard system will effectively solve the ultimate problem of the expenditure standard discrepancies between different regions, different army units and different prices, which in turn, provides reference for the decision - making of the headquarter
並提出了優化標準結構，構建科學合理的經費供應標準體系，有利於有效地解決不同地區、不同部隊、不同物價之間經費標準差異這個根本問題，為總部決策提供參考。
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