查询词典 combinatorial closure

In order to solve set-based combinatorial problems, a new model of discrete particle swarm optimization is proposed.

针对变长集合组合优化问题，提出了一种离散粒子群优化模型。

The performance function was decomposed into disjoint sets of variables to address the combinatorial explosion challenge caused by configuration variations.

该方法通过將性能函数分解为互不相交的变量子集，解决了因配置多样性產生的组合问题。

Along with the rapid development of computer technology, artificial intelligent methods are widely applied in dynamic combinatorial optimization problems.

随着计算机技术的迅速发展，人工智能方法在动态组合优化问题中得到了广泛应用。

A new method to solve the combinatorial optimization problems with mixed evolutionary algorithm based on natural scale enumerative system coding was proposed in this paper. Elitism strategy, one-point crossover and Gaussian mutation were used in the algorithm. An ingenious method for operation among big parameters was designed, which can avoid overflow and simplify the operation.

在自然进位制编码的基础上，算法采用了遗传算法的单点交叉算子和进化规划的高斯扰动算子，并运用了精英保留策略；算法实现时采用逐位运算法实现大数值运算，避免了运算溢出，减少了运算量。

These sets are interesting subsets of natural number in combinatorial number theory, ergodic theory and topological group.

这些集合是人们在组合数论、遍历理论以及拓扑群中感兴趣的重要的自然数子集。

The overexpression and combinatorial expression of genes involved in ergosterol biosynthesis are not only useful to construct strains with high ergosterol content, but also present a putative technical process that can be used to microbiology breeding.

上述研究不但获得了高麦角甾醇和较高生物量的酵母菌株，同时也为具有重要应用价值的微生物育种探索了可以借鉴的新方法和新技术。

These results indicated that the presented method could be applied efficiently to the solution-phase combinatorial chemistry based on Williamson etherification.

结果表明该方法可高效率地用于基于Williamson醚化反应的液相组合化学合成。

Then combined with the concept of solution backboens of combinatorial optimization problems, we design a bacbkone-based extremal evolutionary algorithm.

应用新的变量适应度定义，设计了基于模式的极值进化算法。

A combinatorial identity is obtained:=:~z 2r扟32-rn-iJ As main result of this paper, in section two, the convolution梩ype identities emerge from our discussion about Lagrange formula whom in author 憇 view can be taken as the inherent characteristic of Lagrange formula but have been ignored fOi so long time.

第一章对拉格朗日反演在Riordan群理论中的应用进行了介绍，证明了一个组合等式：第二章通过对拉格朗日反演定理本身的分析，得到一个对任意的形式幂级数都适用的三个拟卷积公式，这些公式体现了任意能在零点解析的函数的内在性质。

We demonstrate that coexpression of the Forkhead protein FoxC2 and the Ets protein Etv2 induces ectopic expression of vascular genes in Xenopus embryos, and that combinatorial knockdown of the orthologous genes in zebrafish embryos disrupts vascular development.

实验显示，Forkhead蛋白FoxC2和Ets蛋白Etv2的共同表达，能够诱使非洲爪蟾胚胎血管基因的易位表达。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。