hessian造句

• To the right and left of the post stood rows of french soldiers , in blue uniforms , with red epaulettes , in hessians and shako
  柱子左右两边，站着排成行的法军，他们身穿带有红色穗条肩章的蓝制服，脚登皮靴，头戴圆筒帽。
• He saw distinctly one bandy - legged old french officer , wearing hessian boots , who was getting up the hill with difficulty , taking hold of the bushes
  他清楚地看见一个年老的法国军官，他迈开套着鞋罩的外八字脚攀缘着灌木，费劲地登上山坡。
• Small rootballs are usually wrapped with hessian and ropes , or enclosed in a timber box . large rootballs have to be secured in a steel box reinforced with steel beams
  细小的根团需以麻布及绳封绑，或放进木盒内；庞大的根团则须放进钢箱，再用方钢柱稳固。
• But one of its disadvantages is that the cost of solving the newton equation is large . the reason is that the choleski factorization of the hessian v ' f is expensive
  但是它的缺点之一是花费很大，原因是在解newton方程时海色阵? ~ 2f的choleski分解的花费很大。
• In this paper , we study classical solution to the first initial - boundary value problem of parabolic hessian equation : where is a bounded , uniformly ( k - l ) - convex domain in rn with smooth boundary
  本文研究如下的抛物型hessian方程的第一初边值问题的古典解：其中是r ~ n中有界一致( k - 1 )凸的光滑区域。
• Others claimed that the hessian soldier rose from the grave to lead the hessian soldiers in a charge up nearby chatterton hill , not knowing that the hill had already been taken by the british
  另一些人则认为这个黑森士兵还不知道附近的查特顿山已被英国人占领，他从坟墓里出来便是要领导其他黑森士兵向那儿冲锋。
• All these westphalians and hessians napoleon is leading against us would not have come to fight us in russia , and we should not have gone to war in austria and in prussia without knowing what for
  那时，拿破仑所率领的这些威斯特法利亚人和黑森人就不会跟随他到俄国来了，我们也不会莫名其妙地到奥国和普鲁士去打仗了。
• He boldly assumed the whole responsibility of it all ; and his clouded intellect found justification in the fact that among the hundreds of thousands of men who perished , there were fewer frenchmen than hessians and bavarians
  他勇敢地承担了事件的全部责任，他神志不清地竟然从几十万牺牲者中法国人少于黑森人和巴代利亚人这样一事实中找到了辩解的证据。
• Based on this observation , we develop a newton - filter method in such a way that at each step , the method generates a point such that either the objective function value or its gradient descreases sufficiently
  此时，常用的线性搜索(如armijo搜索和wolfe搜索等)可能失败。另一方面，不管目标函数的hessian阵是否正定， newton方向一定是目标函数的梯度的模函数的下降方向。
• Due to the convergence of cg method is strongly dependent on the condition number of the hessian , the inexact newton method with cg subiterations will be powerful if these cg subiterations are replaced by preconditioned cg subiterations with suitable preconditioner
  由于cg法的收敛状态强烈的依赖于海色阵的条件数，所以用条件预优共轭梯度法( pcg )替代cg法会得到更好的效果。
• Observing that the newton direction is always a descent direction of the square norm of the gradient , even if it is not a descent direction of the objective function , which will result some linear research - such as armijo research or wolfe research - fail
  因此，该算法是颇受欢迎的算法之一。然而，若问题的目标函数的hessian阵不正定，则不能保证算法产生的方向是目标函数的下降方向。
• 3 ) evolves perona - malik equation to the form of weighted smoothing in two orthogonal directions . brings hessian method , which is an approach to extract the image feature direction , into the technology of smoothing image
  3 )推导perona ? malik方程为在相互垂直方向不同程度平滑的形式，将提木于柿微分方程的图街个滑技术及其应用研穴摘要取图像特征方向的hessain方法应用到图像平滑技术中。
• However , some of them are restrictive . for some of these methods , the convergence is not known in this paper , based on a modified bfgs update formula proposed by li and fukushima , we propose a modified bfgs method for solving equality constrained optimization
  本文在li - fukushima提出的求解无约束问题的修正bfgs公式的基础上，对求解等式约束问题的sqp算法，提出一个保证qp子问题的目标函数的hessian阵的正定性的修正方案。
• It is proven that these modified dual algorithms still have the same convergence results as those of the conceptional dual algorithms in chapter 2 and chapter 3 . secondly , a dual algorithm is constructed for general constrained nonlinear programming problems and the local convergence theorem is established accordingly . the condition number of modified lagrange function ' s hessian is estimated , which also depends on the penalty parameter
  证明这些修正的对偶算法仍具有同前两章的概念性对偶算法相同的收敛性结果，我们还进一步构造了一般约束非线性规划问题的对偶算法，建立了相应的局部收敛理论，最后估计了修正lagrange函数的hesse阵的条件数，它同样依赖于罚参数。
• Nobody came near them , and their movements showed a mechanical regularity ; their forms standing enshrouded in hessian wroppers - sleeved brown pinafores , tied behind to the bottom , to keep their gowns from blowing about - scant skirts revealing boots that reached high up the ankles , and yellow sheepskin gloves with gauntlets . the pensive character which the curtained hood lent to their bent heads would have reminded the observer of some early italian conception of the two marys
  没有人走近她们她们的动作像机械一样地一致她们站在那儿，身上裹着麻布罩衫这是一种带袖子的黄色围裙，从背后一直扣到下摆，免得让风吹来吹去穿着短裙，短裙下面是脚上穿的靴子，靴子的高度到达了脚踝以上，手上戴的是带有护腕的羊皮手套。
• In the second part , a decomposition method for solving semidefmite quadratic programming with box constraints is proposed . a regular splitting of the hessian matrix of the problem is used in the algorithm . the convergence of the algorithm is proved under certain assumptions , the numerical results are also given
  第二部分把解边界约束正定二次规划问题的正则分解算法推广到求解边界约束半正定二次规划问题，在理论证明的基础上还进行数值检验，结果说明算法是有效的。
• At the windows of the houses men could be seen in military coats and hessian boots , laughing and strolling through the rooms . in the cellars , in the storerooms similar men were busily looking after the provisions ; in the courtyards they were unlocking or breaking open the doors of sheds and stables ; in the kitchens they were making up fires , and with bare arms mixing , kneading , and baking , and frightening , or trying to coax and amuse , women and children
  房屋的窗户里，闪现着穿军大衣和短靴的人们，他们嘻笑着出入于各个房间在地窖和地下室里，这些人喧宾夺主地款待自己在院子里，这些人打开或砸开披屋和马厩的门在厨房，则点燃炉灶，卷起袖子和面，烘烤和煎炸，恐吓，调笑和爱抚妇女和儿童。
• It exploits the structured of the hessian matrix of the objective function sufficiently . an attractive property of the structured bfgs method is its local superlinear / quadratic convergence property for the nonzero / zero residual problems . the local convergence of the structured bfgs method has been well established
  它们充分利用了目标函数的hesse矩阵的结构以提高算法的效率，该算法的显著优点是对于零残量问题具有二阶收敛性而对于非零残量问题具有超线性收敛性。
• The results of numerical experiment are reported to show the effectiveness of the proposed algorithms . reduced hessian algorithm has became one of the very popular and most effecive methods for solving nonlinear equality constrained programming . recently , chaya gur - witz proposed the two - piece update of a projected hessian matrix
  最近， chayagurwitz在nocedal和overton等人工作的基础上，提出了两块校正的投影hesse矩阵方法，讨论了其算法的局部收敛速率，但未涉及整体收敛性。
• A dual algorithm , based on an exponential potential function , is proven to be included in this class of dual algorithms . detailed convergence results for the dual algorithm are given and the estimate of the condition number of the potential function ' s hessian is established , which depends on the penalty parameter . 2
  还基于一个指数型势函数建立了相应的对偶算法，它也属于这类对偶算法，对这一对偶算法，给出了精细的收敛性结果，同时估计了势函数的hesse阵的条件数，它依赖于罚参数。