算法化

It mainly finished the following several jobs. Pretreated the documents. Improved the Okapi term weighting formula. It also separated the term weighting and completed attributes reduction and rules extraction tasks. Firstly it reduced the feature vector dimensions by using discernible matrix. Then reduced it again by computing relative reductions.

主要完成了以下几个方面的任务：对文本进行了预处理；改进了Okapi权重计算公式，并对权值进行了离散化；实现了属性约简和规则抽取，首先利用区分矩阵对特征向量维数进行了初次压缩，然后通过相对约简计算再次压缩了特征向量维数，并生成了决策规则；采取了规则合成的策略，生成最终的决策规则；设计了一种文本与规则的匹配算法，使匹配过程尽可能简单有序。

The segmentation and recognition methods of the omnirange character string which is adhered or intersected with the lines in the engineering drawing vectorization are described in this paper.

描述了工程图纸矢量化中多向粘连字符及字线相交的分割算法与识别方法。

The improved method reduces two global synchronization points to one by changing the computation sequence in the CRS method and all inner products per iteration are independent.

通过算法重构，ICRS方法将CRS方法所需要的2个全局同步化点降低到了1个，没有数据相关性。

In terms of the process of object-oriented analysis, object-oriented design, and object-oriented programming, the hierarchy analysis of simulation system is carried through based on OOS (Object-Oriented Simulation), and the simulation framework design is completed.

在程序设计中，利用泛型技术的弱耦合性、强复用性，以及其提供的利用模板技术所建立起来的可扩展的泛型算法，较好地满足了软件的通用化要求。

This article studies solution of the first kind of operator equation and makes theoretical analysis and algorithm in detail.

讨论了地球物理反演问题中的第一类算子方程的解法，基于Tikhonov正则化思想，给出了详细的理论分析和算法描述。

Moreover,these algorithms are very sensitive to the initialization and easy to get trapped into local optima.

此外这类算法还存在对初始化敏感，易陷入局部极值点等弱点。

In the fourth chapter, a new simple method is proposed to obtain the proper optimal step size, basing on the property of 4DVAR technology.

在第四章中，总结了最小化过程常用的一些算法及其特点，并论述了优化步长的选取方法的重要性以及以往在该方面研究的局限性。

During the minimizing process of variational assimilation, calculation efficiencyis very important and the optimal step size greatly influences the algorithm efficiency.

在变分同化的最小化过程中，计算效率无疑是最重要的，而优化步长的计算又直接关系到算法效率的成败。

There are a number of hidden contributions to this work, beyond the construction of a fully verified, optimizing compiler: The compiler was built in a modular, pipelined fashion as a series of translations between well-specified intermediate languages, making it possible to add new optimizations or reuse components for other projects.

除了构造一个完全经过验证的优化编译器之外，这项工作还有一些更多贡献：采用了模块化、管道－过滤器设计模式，将整个编译器划分为一系列规范良好的中间语言之间变换的模块，这为加入新优化算法或者是在别的项目中重用这些模块提供了可能。

To develop the missile quasi-linear model, a state space model is established for missile dynamics, and function substitution method is used to describe the nonlinear dynamics of missile as linear combinations of functions of given time-varying parameters. With the minimizing variation range of model parameters over the whole design envelope as the optimum aim, linear programming optimum arithmetic is used to determine the model parameters at selected grid points.

为了建立导弹准线性化模型，将导弹动力学描述为状态空间形式；采用函数替换方法将导弹的非线性动力学描述为关于特定时变参数的函数的线性组合形式；以整个设计区间内模型参数变化范围最小为优化目标，采用线性规划优化算法确定了所选网格点上的模型参数。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新