... 梯度法（Gradient Method） 变尺度法(Variable Metric Method) 坐标轮换法（ Cyclic Coordinate Method） ...
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dfp variable metric method dfp变尺度法
huang variable metric method huang族变尺度算法
variable metric method using 变尺度法
reduced variable metric method 既约变尺度法
constrained variable metric method 约束变尺度方法
nonsymmetric variable metric method 非对称可变尺度法
on-off variable metric method 开关变尺度法
The algorithm uses fast local convergence characteristics of the variable metric method,so that the improved algorithm can jump out of local optimal solution effectively,and can also search the global optimal solution quickly.
该算法利用变尺度法局部收敛快的特点,使改进后的算法能有效的跳出局部最优解,快速地搜索到全局最优解。
参考来源 - 改进的粒子群理论及在非线性方程组中的应用The thesis compared three algorithms above at iterative efficiency and reconstruction quality respectively by simulating experiment. The result shows that variable metric method is better than other algorithms in the aspects of iterative efficiency and reconstruction quality.
通过模拟实验,在迭代的次数和重建图像的质量方面比较了几种无约束最优化重建算法,得出变度量法在迭代效率和重建图像质量方面优于其它算法。
参考来源 - 锥形束三维XCT重建算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, the relationship of DFP variable metric method and FR conjugate gradient method is investigated.
研究了求解无约束极值问题的DFP变尺度法和FR共轭梯度法的关系问题。
The one dimension search method of second differential algorithm is used in the Variable metric method of BFGS.
在BFGS变尺度算法中所用的一维搜索方法是二次插值算法。
The interval of the initial stresses and elastic modulus can be obtained by using the constrained variable metric method for the present model.
并采用约束变尺度方法求解该反演模型，获得地应力和弹性模量所在区间范围。
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