All equations in prediction and correction step can be solved using matrix reduction technique, which significantly reduces the dimension to half of the original.
其中预测及校正方程均采用特殊的矩阵降阶技术求解，所需求解的方程组维数只相当于原来的一半。
A new parallel in time and in space relaxed Newton method and a new parallel in space relaxed Newton method for admittance matrix reduction are described in detail.
较详细地描述了用于暂态稳定性计算的时间空间并行松弛牛顿方法以及用于收缩导纳矩阵计算的空间并行松弛牛顿方法。
Given that emissions are already relatively low in Brazil's energy sector in light of its renewable matrix, opportunities for reduction are lower.
从巴西的可再生能源结构看，巴西能源业的排放水平相对较低，鉴于此，实现进一步减排的可能性较小。
Based on the reduction of attribute sets, the partial order relation matrix of radar jamming space is obtained.
在计算属性约简集的基础上，建立了雷达干扰空间的偏序关系矩阵。
Finally, the equivalence properties between Boolean matrix representation and algebra representation of attribute reduction are proved.
最后证明了属性约简在布尔矩阵和代数两种不同表示下是等价的。
The mechanism of organic matrix modifiers were: acting as superficial modifier and complex reagent, creating strong reduction atmosphere after decomposed.
有机基体改进剂的作用机理为：本身表面活性和络合作用，分解产物形成强还原气氛。
Compared to the matrix resin, this nano hybrid resin has shown reduction of volume shrinkage 38% and increase of tensile strength 31%.
该纳米复合树脂与基体树脂相比较，体积收缩率降低38%，拉伸强度提高31%。
This is parallel to the reduction in the matrix volume because of the removal of lignin.
它取决于基质的还原量，因为木素去除了。
The time complexity and space complexity of the traditional attribute reduction algorithm using discernible matrix are quite big.
传统的利用区分矩阵进行属性约简算法，其时间复杂度和空间复杂度很大。
It proposes two data reduction models based on discernibility matrix and data analysis separately, improves the discernibility matrix algorithm and made the comparison between the two models.
提出了基于分辨矩阵和数据分析的两种数据约简模型，并对分辨矩阵算法做了改进，最后对这两种模型进行了比较。
Then, we present an improved decision matrix together with a method for attribute reduction of the decision table and an example shows that the improved method is effective and complete.
然后给出一个改进的决策矩阵和属性约简方法，例子分析表明，改进后的方法是有效的和完备的。
This paper analyses attribute value reduction, and presents a method to acquire briefest rules directly by constructing decision matrix in consistent decision table.
该文分析属性值约简，针对协调决策表提出一种通过构造决策矩阵直接获取最简规则的方法。
Both of attribute weight frequency and strong compressible set are used to simplify discernibility matrix so that computing complexity is decreased and reduction efficiency is.
同时利用属性加权频率和强等价集概念化简区分矩阵，既减小了计算复杂度又提高了约简效率。
Both of attribute weight frequency and strong compressible set are used to simplify discernibility matrix so that computing complexity is decreased and reduction efficiency is increased.
同时利用属性加权频率和强等价集概念化简区分矩阵，既减小了计算复杂度又提高了约简效率。
Then, an attribute reduction algorithm based on indiscernibility matrix is introduced.
给出了基于不可区分矩阵的属性频率约简算法。
It can be used as the matrix of sulfur transfer catalyst which has better reduction regeneration performance.
该组合物可用作硫转移催化剂的基质，含该组合物的硫转移催化剂具有更好的还原再生性能。
And three modified attribute reduction algorithms are presented, including modified algebraic algorithm, weighed sum of attribute significance algorithm and modified discernible matrix algorithm.
提出了三种改进的属性约简算法：改进的代数集合算法、重要度加权平均算法和改进的可辨识矩阵算法。
A novel method for dimensionality reduction of kernel matrix is presented.
提出了基于聚类的核矩阵维度缩减技术。
Aiming at the problem of equivalent conversion from conjunctive normal form to disjunctive normal form, an effective algorithm was proposed to construct reduction tree based on discernibility matrix.
针对差别矩阵求约简过程中合取范式向析取范式等价转换的难题，提出一种基于差别矩阵构造约简树的有效方法。
After that we study on the ordered decision table and propose a new heuristic attribute reduction algorithm based on dominance matrix, whose time complexity is polynomial.
再次，对有序决策表进行了研究，提出了一种基于优势矩阵的启发式属性约简算法。
An experimental procedure was designed to simulate the reservoir permeability (matrix, natural fractures and induced fractures) reduction as a function of increasing effective stress.
一个实验过程设计模仿水库渗透矩阵，天然的东西是一个增加有效压力的功能断裂和引起破裂减少。
Decrease of the oil displacement efficiency of the damaged reservoirs is mainly resulted from the reduction of matrix permeability, change of wettability and increase of capillary pressure.
基质渗透率的降低、润湿性的改变以及毛细管压力的增大是储层驱油效率降低的主要因素。
The problems of data reduction, including relative reduction and absolute reduction are introduced and unified as the set operation on difference list that is come from the difference matrix.
介绍了粗糙集数据约简概念，包括相对约简和绝对约简，并将它们统一为差别列表上的集合操作，其中差别列表是从差别矩阵引伸而来的。
In this paper, the problems of the model reduction and the design of optimal output feedback matrix are discussed for linear stochastic discrete-time system.
本文研究了线性离散随机系统的模型降阶和最优输出反馈矩阵的设计问题。
Based on the definitions, the core finding algorithm, the relative attribute reduction algorithm and value reduction of information decision system are presented based on binary discernibility matrix.
在定义的基础上，给出了基于二进制区分矩阵的求核算法、相对属性约简算法及值约简算法。
Then, the LDA transformation matrix is improved with CCA, which makes the reduction of dimensions adaptive.
然后采用典型相关分析（CCA）改进线性判别分析（LDA）中的变换矩阵，使得特征向量的降维具有自适应性；
The reduction in permeability in the near-wellbore area resulting from mechanical factors such as the displacement of debris that plugs the perforations or formation matrix.
在近井地带由机械因素造成的渗透率降低，如碎片的驱替堵塞射孔孔眼或地层。
Secondly, it introduces an improved algorithm which revises the discernibility relation of similarity sets on the basis of the Discernibility Matrix of distribution reduction.
接着对分布约简的可辨识矩阵中等价类的区分关系进行改进，提出一种新的近似约简算法。
The author gains insights from attribute reduction based on discernability matrix and proposes a few rough-set based text feature selection algorithms, i. e. , DB1, DB2 and LDB.
作者从基于分辨矩阵的粗糙集属性约简中受到启发，提出了一系列基于粗集理论的文本特征选择算法，即DB1、DB2、LDB。
The author gains insights from attribute reduction based on discernability matrix and proposes a few rough-set based text feature selection algorithms, i. e. , DB1, DB2 and LDB.
作者从基于分辨矩阵的粗糙集属性约简中受到启发，提出了一系列基于粗集理论的文本特征选择算法，即DB1、DB2、LDB。
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