This scheme is initiated by Ziv and Lempel [1]. A slightly modified version is described by Storer and Szymanski [2]. An implementation using a binary tree is proposed by Bell [3]. The algorithm is quite simple: Keep a ring buffer, which initially contains "space" characters only. Read several letters from the file to the buffer. Then search the buffer for the longest string that matches the letters just read, and send its length and position in the buffer.
標(biāo)簽: initiated described modified slightly
上傳時(shí)間: 2014-01-09
上傳用戶:sk5201314
In each step the LZSS algorithm sends either a character or a <position, length> pair. Among these, perhaps character "e" appears more frequently than "x", and a <position, length> pair of length 3 might be commoner than one of length 18, say. Thus, if we encode the more frequent in fewer bits and the less frequent in more bits, the total length of the encoded text will be diminished. This consideration suggests that we use Huffman or arithmetic coding, preferably of adaptive kind, along with LZSS.
標(biāo)簽: algorithm character position either
上傳時(shí)間: 2014-01-27
上傳用戶:wang0123456789
A
標(biāo)簽:
上傳時(shí)間: 2013-12-22
上傳用戶:JIUSHICHEN
UnZip is a small zipfile extract utility. It is written to be assmall portable as possible and is intended to be starting point for im-plementation of .ZIP files in non-IBM environments.Source code is provided in C and Turbo Pascal. If you port this programto a non-IBM system, I would appreciate a copy of the ported source andexe files.
標(biāo)簽: is portable possible extract
上傳時(shí)間: 2014-01-20
上傳用戶:維子哥哥
apriori java 實(shí)現(xiàn) * A program to find association rules with the apriori algorithm (Agrawal et al. 1993).<br> * Other than the standard apriori algorithm, this program enable to find<br> * apriori all relation.
標(biāo)簽: apriori association algorithm Agrawal
上傳時(shí)間: 2013-12-21
上傳用戶:s363994250
This program is the database application that display datasets and add, delete, edit a dataset.
標(biāo)簽: application database datasets program
上傳時(shí)間: 2014-01-06
上傳用戶:2404
PCCTS這個(gè)經(jīng)典詞法語(yǔ)法分析器的使用手冊(cè)。學(xué)習(xí)編譯原理必須。 A Language Translation Using PCCTS and C
標(biāo)簽: PCCTS Translation Language Using
上傳時(shí)間: 2015-03-24
上傳用戶:liglechongchong
java ejb開發(fā) 程序4、語(yǔ)句alter table people add(phone_number varchar2(10)) 的作用是 A 修改表結(jié)構(gòu) B 為people表添加約束,約束名稱是phone_number C 向people表中添加一列,名稱是phone_number,數(shù)據(jù)類型是varchar2,長(zhǎng)度是10 D 上述答案均不正確 5、( )BLOB和CLOB的區(qū)別在于 A CLOB只能存放字符類型的數(shù)據(jù),而BLOB沒有任何限制 B BLOB只能存放字符類型的數(shù)據(jù),而CLOB沒有任何限制 C CLOB只能存放小于4000字節(jié)的數(shù)據(jù),而BLOB可以存放大于4000字節(jié)的數(shù)據(jù) D BLOB只能存放小于4000字節(jié)的數(shù)據(jù),而CLOB可以存放大于4000字節(jié)的數(shù)據(jù) 6、存儲(chǔ)過程從本質(zhì)上來講就是 A 匿名的PL/SQL程序塊,它可以被賦予參數(shù) B 命名的PL/SQL程序塊,它可以被賦予參數(shù) C 命名的PL/SQL程序塊,不能被賦予參數(shù) D 匿名的PL/SQL程序塊,不能被賦予參數(shù) 7、( )下列關(guān)于日期數(shù)據(jù)類型,哪一個(gè)語(yǔ)句是正確的寫法 A insert into test values( 9999-12-03 ) B insert into test values( 1999-03-02 ) C insert into test values(to_char(1999-06-03, yyyy/dd/mm )) D insert into test
標(biāo)簽: people phone_number varchar2 alter
上傳時(shí)間: 2013-12-26
上傳用戶:wendy15
計(jì)算矩陣連乘積 問題描述 在科學(xué)計(jì)算中經(jīng)常要計(jì)算矩陣的乘積。矩陣A和B可乘的條件是矩陣A的列數(shù)等于矩陣B的行數(shù)。若A是一個(gè)p×q的矩陣,B是一個(gè)q×r的矩陣,則其乘積C=AB是一個(gè)p×r的矩陣。
上傳時(shí)間: 2015-03-25
上傳用戶:yulg
The application you are going to create mimics entering an employee into a database .The user wil be required to enter an employee s name and age
標(biāo)簽: application The entering employee
上傳時(shí)間: 2014-12-07
上傳用戶:ouyangtongze
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