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BWT
BWT压缩方法描述,是一种被bzip2等数据压缩技术所使用的算法(The Burrows–Wheeler transform (BWT, also called block-sorting compression), is an algorithm used in data compression techniques such as bzip2.)
- 2011-11-25 14:47:11下载
- 积分:1
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7zipDll
完善后的LZMA(7ZIP)压缩DLL文件,且带有示范使用源码。(Perfect after LZMA (7ZIP) compressed DLL files, and a demonstration on the use of source code.)
- 2007-09-24 12:25:04下载
- 积分:1
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200430481
赫夫曼编译码器:
用哈夫曼编码进行通信可以大大提高信道利用率,缩短信息传输时间,降低传输成本。但是,这要求在发送端通过一个编码系统对待传数据预先编码,在接收端将传来的数据进行译码(复原)。对于双工信道(即可以双向传输信息的信道),每端都需要一个完整的编/译码系统。试为这样的信息收发站写一个哈夫曼码的编/译码系统。
[基本要求]一个完整的系统应具有以下功能:
(1)I:初始化(Initialization)。从终端读入字符集大小n,以及n个字符和n个权值,建立哈夫曼树,并将它存于文件hfmTree中。
(2)E:编码(Encoding)。利用已建好的哈夫曼树(如不在内存,则从文件hfmTree中读入),对文件ToBeTran中的正文进行编码,然后将结果存入文件CodeFile中。
(3)D:译码(Decoding)。利用已建好的哈夫曼树将文件CodeFile中的代码进行译码,结果存入文件TextFile中。
(4)P:印代码文件(Print)。将文件CodeFile以紧凑格式显示在终端上,每行50个代码。同时将此字符形式的编码文件写入文件CodePrin中。
(5)T:印哈夫曼树(Tree printing)。将已在内存中的哈夫曼树以直观的方式(树或凹入表形式)显示出,同时将此字符形式的哈夫曼树写入文件TreePrint中。()
- 2021-03-06 09:19:30下载
- 积分:1
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huffman_file_compress
说明: 使用霍夫曼huffman 編碼方式 對文件進行壓縮 程序很簡單 主要是幫助新人了解霍夫曼編碼的實現方法(The use of Huffman huffman encoding file compression program is very simple principal is to help newcomers understand the Hoffman encoding method)
- 2008-11-14 06:56:32下载
- 积分:1
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mentkal.1
计算多重积分是蒙特卡罗方法的重要应用领域之一。本章着重介绍计算定积分的蒙特卡罗方法的各种基本技巧,而这些技巧在粒子输运问题中也是适用的(Calculation of multiple points is an important application of the Monte Carlo method, one of the areas. This chapter focuses on calculation of definite integral of the Monte Carlo method, a variety of basic skills, and these skills in particle transport problems are also applicable to)
- 2020-12-04 13:09:24下载
- 积分:1
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huff
呃,就是用赫夫曼算法写的压缩解压程序。非常粗糙,只能压缩英文文章。因为里面的字符概率是基于自然语言的,源代码之类的没法压缩。而且会抛弃最后几个字母,嘿嘿。为了交作业,没有好好写。改一下下应该能挺好的。压缩比能到60 吧(Uh, is to use Huffman compression decompression algorithm written procedures. Very rough, only compress English articles. Because there is the probability of characters based on natural language, the source code and the like can not compressed. And will abandon the last few letters, hehe. For homework, not properly written. The following should be able to change it quite good. Compression ratio to 60 of it can be)
- 2013-05-26 15:23:59下载
- 积分:1
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reliability-assessment
电力输发电系统可靠性评估程序 解析法 系统数据在压缩包里(Power transmission and generation system reliability evaluation process analytical method system data compression bag)
- 2020-09-01 09:28:09下载
- 积分:1
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arithmetic
有关算术编码对文本压缩的程序在c++环境中实现(about arithmetic compressed)
- 2013-11-28 23:19:16下载
- 积分:1
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12344556
说明: 用单片机来直接驱动步进电机很精确走小步子.(Using single-chip to directly drive stepper motor is very accurate take small steps.)
- 2008-09-04 10:47:40下载
- 积分:1
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zip4j
从Zip文件创建,添加,提取,更新,删除文件
读/写密码保护的Zip文件
支持AES 128/256加密
支持标准邮??编加密
支持Zip64格式
支持存储(无压缩)和Deflate压缩方法
从Split Zip文件创建或提取文件(例如:z01,z02,... zip)
支持Unicode文件名
进度监视器(Create, add, extract, update, delete files from Zip files
Read/write password-protected Zip files
Support for AES 128/256 encryption
Supporting Standard Postal Encryption
Support Zip64 format
Supporting storage (uncompressed) and Deflate compression methods
Create or extract files from Split Zip files (e.g. z01, z02,... Zip))
- 2020-06-21 08:20:02下载
- 积分:1