查询词典 hash coding

This paper proposes a new EEG lossless compression technology based on improved DM Coding and Adaptive 2-Value Arithmetic Coding:First, DM Coding is used to the original data, and them through an appropriate transform of data format, most of the "redundant" bits in every byte are removed, also its Entropy of bits is reduced.

引言 多年来，嫡编码作为数据无损压缩的重要手段在生物医学信号的处理中一直得到广泛地应用，同时对于脑电信号的处理来说更是如此：由于神经疾病的诊断需要容量庞大的分析数据以及脑电波自身内涵的复杂性使得无损压缩对于脑电数据的处理而言异常重要；在另一方面，霍夫曼编码(Huffman Cod-ing)。

The video coding method includes the steps of dividing input frames into one final low-pass frame and at least one high-pass frame through a motion compensated temporal filtering, coding the final low-pass frame and then decoding the coded final low-pass frame, re-estimating the high-pass frame by using the decoded final low-pass frame, and coding the re-estimation high-pass frame.

所述视频编码方法包括以下步骤：通过运动补偿时域滤波将输入帧划分为一个最终低通帧和至少一个高通帧；对最终低通帧编码并随后对编码的最终低通帧进行解码；通过使用解码的最终低通帧重估所述至少一个高通帧；以及对重估的高通帧编码。

In chapter 2, we proposed a fractal image coding method based on genetic algorithms. The searching scheme problem of domain block in fractal image coding is well solved by applying a robust genetic algorithm with well-selected populations and revised genetic operators. Experimental result has show that it can increase fractal image coding speed by this method.

第二章在简介分形图象编码和遗传算法的基础上，提出了基于遗传算法的分形图象压缩编码方法；通过有目的选择初始群体、改造遗传算子等手段，较好地解决了分形图象编码中的定义域块搜索策略问题，大大提高了分形编码的速度。

It is found d can be regarding as characteristic parameter of gene coding region,and d can clearly specify the coding region and non-coding region.

结果表明，用d作编码区的特征参数是可行的，它可以很好地区分编码序列和非编码序列。

A poor choice of hash function may cased high probability of keys mapping to the same hash bucket.

而array在resize的时候，需要将原先的元素复制到一个新的空间中去。

In this paper we firstly discuss the general concepts of compter security and cryptology, and then describe the mostly used modern encryption methods and technologies. We detail the advantages and disadvantages of symmetric algorithm, public-key algorithm and one-way hash function. At last we put forward a new block cipher - permutation code, and describe the secret hash digital signature and online electronic contracting with the trusted third party system.

本文首先讨论计算机安全和密码学的一般概念，然后介绍现代加密手段常用的方法和技术，详细讨论了对称加密方法、公开密钥加密方法和单向散列加密方法的优点和不足，进而提出了一种新型的分组加密算法—排列码加密算法，并在此基础上实现了保密散列数字签名算法和有可信第三方参与的网上电子签约。

The paper proposes a method of use of hash and binary tree to express the internal structure of knowledge and use of hash table and B tree to store the external knowledge for the first time.

首次提出用散列二叉树实现知识的内部表达；用散列表和B树实现知识的外部存贮，这种方法提高了知识的存取效率，实现了知识库的分布存贮和多用户共享。

Secondly, for the same hash function, the sample with the minimum hash value is selected as the global sample and the local samples are combined at the center node to filter out the biased effect of duplicated updates.

然后，对于相同散列函数产生的样本选取具有最小散列值的样本作为全局样本，完成局部样本集在中心节点的合并，滤除在分布节点上的重复更新对样本偏斜的影响。

Based on the C language implementation of the hash table algorithm code, a good understanding of the hash table and its time complexity measure.

详细说明：基于C语言编写的哈希表算法的实现代码，可以很好的理解哈希表及其时间复杂度的度量。

A hash function must always return the same hash code for the same key.

哈希函数必须始终为相同的键返回相同的哈希代码。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。