使用置换矩阵能够根据每对符号单独分配匹配得分。
A substitution matrix lets you assign match scores individually to each pair of symbols.
在用循环置换矩阵构造准循环LDPC码时会出现一类无法消除的环，称为平衡环。
QC-LDPC codes constructed by circulant permutation matrices will lead to inevitable cycles, named balanced-cycles.
采用置换矩阵，验证了契约关系模型理论构建与现实运作间的关联关系及系统的同构性。
Applying permutation matrix, the association and the system isomorphism between contractual relationship modeling in theory and its operation in practice were verified.
提出了一种基于置换矩阵的非规则低密度奇偶校验(LDPC)码的校验矩阵设计方法。
A design of parity check matrix for Irregular LDPC codes based on per mutation matrix is proposed in this paper.
该方法利用一个短的LDPC码的校验矩阵作为其母矩阵，在此基础上采用循环置换矩阵构造一个长的LDPC码。
The method used a parity-check matrix of a short LDPC code as its mother matrix upon which a long code was constructed with circulant permutation matrices.
利用有限域上一般线性群的BN对分解，给出有限域上的可逆矩阵在置换阵相似变换下的标准形。
We got the standard form of nonsingular matrix over the finite field by means of BN pair decomposition under the similarity transformation of the permutation matrix.
在迭代算法中，采用直接数据置换降低矩阵维数，节省了存储空间，提高了运算速度。
The iterative algorithms in C language were given, which used direct data replacement to reduce the dimension of matrix and saved the storage space.
论文介绍了一种基于全非奇异矩阵的代替置换网络，它可有效的提高分组密码抗线性密码分析的能力。
This paper introduces a completely nonsingular matrix based substitution permutation network that can effectively improve the performance of the block cipher against linear cryptanalysis.
证明置换理想上的正则矩阵可以通过满矩阵对角化。
We show that every regular matrix over exchange ideals admits a diagonal reduction by full matrices.
基于这一模型，设计了一个称为基于全非奇异矩阵的代替置换网络的密码结构。
Based on this model, a new crypt structure called completely nonsingular matrix based substitution permutation network is designed.
给出了基于全非奇异矩阵的代替置换网络的差分概率上界。
The upper bound of the differential probability is developed for the completely nonsingular matrix based substitution permutation network.
指出了使用大规模的基于全奇异矩阵的代替置换网络可有效地提高分组密码抗差分密码分析的安全性。
Therefore, using large completely nonsingular matrix based substitution permutation networks can effectively improve cipher security in relation to differential cryptanalysis.
论文提出了一种基于矩阵的代替置换网络模型。
This paper proposes a matrix based substitution permutation network as the model of block cipher.
十九世纪的代数学知识体系庞大，它包含置换群、矩阵、代数数论、代数几何等多个分支。
In the nineteenth century, the system of algebraic knowledge is enormous, which contains the permutation group, matrix, algebraic number theory, algebraic geometry and other branches.
十九世纪的代数学知识体系庞大，它包含置换群、矩阵、代数数论、代数几何等多个分支。
In the nineteenth century, the system of algebraic knowledge is enormous, which contains the permutation group, matrix, algebraic number theory, algebraic geometry and other branches.
应用推荐