中项

An efficient algorithm based on FP-tree and support array for mining maximal frequent itemsets is proposed. At first the FP-tree and the support array are created at the same time. Then a maximal frequent itemsets tree MAXFP-tree is built up to store all the maximal frequent itemsets. Therefore, it can reduce the search space and improve the efficiency of the algorithm.

提出了一个基于频繁模式树即FP-tree和支持度数组相结合的最大频繁项集挖掘算法，首先建立FP-tree，同时建立支持度数组，然后在此基础上建立最大频繁项集树MAXFP-tree，MAXFP-tree中包含了所有最大频繁项集，缩小了搜索空间，提高了算法的效率。

Grade 6 students participate in one of five trips to Spain, France, Northumberland, Italy or Greece.

6年级学生要参加5项旅行中的一项，这5项旅行分别是到西班牙、法国、诺森伯兰、意大利或者希腊。

A method for separating the same periodical nutation and non—nutation terms from the Z—terms of ILS three group observations is developed.

本文提出了一种从ILS的三组观测Z项中分离相同周期的章动误差项与非章动项的方法。

The idea is to add some lower degree terms in the remainder of orthogonal expansion in an element so that the remainder satisfies more orthogonality conditions in the element, and get a desired superclose funtion uI to finite element solution uh.

简述了有限元超收敛研究的一种新想法，即在单元正交展开的余项中添加若干待定低次项，使此余项在一个单元上满足更多的正交性条件，并得到所需的超接近于有限元解uh的逼近函数uI。

A permute matrix of binary variables is used to map the problem to the neural network, and then the energy function is presented.

能量函数中的目标项、违背交叠约束的惩罚项、违背相邻约束的惩罚项和神经元归一化处理保证了网络能够求解到一个合法解。

By using generalized projection matrix, conditions are given on the scalars in the three term-memory gradient direction to ensure that the three term-memory gradient projection direction is a descent direction. A new three term-memory gradient projection method for nonlinear programming with nonlinear equality and in-equality constraints is presented.

利用广义投影矩阵，对求解无约束规划的三项记忆梯度算法中的参数给一条件，确定它们的取值范围，以保证得到目标函数的三项记忆梯度广义投影下降方向，建立了求解非线性等式和不等式约束优化问题的三项记忆梯度广义投影算法，并证明了算法的收敛性。

The lion's share of revenues in any Olympic quadrennium – in the 2001-04 period it was about two-thirds – ends up, not surprisingly, in the hands of the Winter and Summer Games organising committees.

奥林匹克所有五项收入中，组委会在每一项上都拿大头。在授权、门票和国内赞助等项收入上，除了向国际奥委会交纳5%的特许权费，基本上都归组委会自己所有。

Third, this paper proposes a method of dealing with singularity of Jacobian matrix of robot manipulator, then introduces singular robust inverse matrix of Jacobian matrix.

并在拉格朗日—欧拉方程的基础上给出了机器人操作器的动力学方程，对动力学方程中的惯量项、重力载荷项进行了简化，并给出了哥氏力和离心力项的简单求法。

The first or last term of a ratio or a series.

首项，末项：比率或数列中第一个或最后一个项

Low temperature tup impact property of plastic profile shapes and dimension change rate of main profile shapes after heating are two typical technical indexes among 15 testing indexes stipulated in standard GB/T 8814-2004 "Non-plasticized PVC-U for door/window".

PVC 塑料异型材的低温落锤冲击性能与主型材加热后尺寸变化率是GB/T8814—2004《门、窗用未增塑聚氯乙烯型材》标准规定的15项检验指标中具有典型代表意义的2项技术指标，探讨这2项技术指标的影响因素及其相互之间的相关性，为综合提高PVC型材的各项性能，提出了对应的调整措施。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。