The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity. The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions.However.there are many shortcomings in traditiona1 measurements.This paper introduces a new method for measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page.Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e币cient.
标签: sessions clustering similarity Web
上传时间: 2014-01-11
上传用户:songrui
写一个对文本文件加密的程序和一个解密的程序。密码规则是:对于小写字母,a换成x,b换成y,c换成z,d换成a,e换成b,...;对于大写字母,A换成X,B换成Y,C换成Z,D换成A,E换成B,...;其他字符不变。
上传时间: 2016-08-16
上传用户:jennyzai
利用伟福 Lab2000P单片机实验仪上提供的显示电路和键盘电路,做一个简单的计算器。用十六进制A键 =‘+’、B键 =‘-’、C键 = ‘x’、D键 = ‘/’、E键 = ‘=’、F键 = ‘C’。
上传时间: 2016-08-22
上传用户:ukuk
本程序是一个用汇编编的精致的图形时钟,运行时双击clock图标即可, 钟表显示的时间为本机系统的时间。 按b键可扩大画面 ;按s键可缩小画面;按c键可改变颜色;按e键可听音乐; 按q键退出本程序.
上传时间: 2014-01-02
上传用户:拔丝土豆
flash 键盘音效取自win2000系统ding.wav,经过CoolEdit处理成音阶,在Flash中导入在相应按钮上。 没有难度,就是耐心一点,成绩不错哦! 对应表: 低音G-a #G-w A-s #A-e B-d 中音C-f #C-t D-g #D-y E-h F-j #F-i G-k #G-o A-l #A-p B- 高音C-1 D-2 E-3 F-4 G-5 A-6 B-7 C(high)-8 #C-c #D-v #F-b #G-n #A-m
上传时间: 2014-02-06
上传用户:ljmwh2000
7段数码显示译码器设计7段数码是纯组合电路,通常的小规模专用IC,如74或4000系列的器件只能作十进制BCD码译码,然而数字系统中的数据处理和运算都是二进制的,所以输出表达都是十六进制的,为了满足十六进制数的译码显示,最方便的方法就是利用译码程序在FPGA/CPLD中来实现。例子作为七段译码器,输出信号LED7S的7位分别接数码管的7个段,高位在左,低位在右。例如当LED7S输出为“1101101”时,数码管的7个段g、f、e、d、c、b、a分别接1、1、0、1、1、0、1;接有高电平的段发亮,于是数码管显示“5”。
上传时间: 2014-01-26
上传用户:1427796291
CRC码产生器与校验器程序 Features : Executes in one clock cycle per data word Any polynomial from 4 to 32 bits Any data width from 1 to 256 bits Any initialization value Synchronous or asynchronous reset
标签: polynomial Features Executes clock
上传时间: 2013-12-18
上传用户:Ants
Atheros Communications AR6001 WLAN Driver for SDIO installation Read Me March 26,2007 (based on k14 fw1.1) Windows CE Embedded CE 6.0 driver installation. 1. Unzip the installation file onto your system (called installation directory below) 2. Create an OS design or open an existing OS design in Platform Builder 6.0. a. The OS must support the SD bus driver and have an SD Host Controller driver (add these from Catalog Items). b. Run image size should be set to allow greater than 32MB. 3. a. From the Project menu select Add Existing Subproject... b. select AR6K_DRV.pbxml c. select open This should create a subproject within your OS Design project for the AR6K_DRV driver. 4. Build the solution.
标签: Communications installation Atheros Driver
上传时间: 2016-10-27
上传用户:hebmuljb
1、编写一个程序algo3-1.cpp,实现顺序栈的各种基本运算,并在此基础上设计一个主程序实现如下功能: (1)初始化栈S。 (2)判断栈S是否非空。 (3)依次进栈元素a,b,c,d,e。 (4)判断栈S是否非空。 (5)输出栈的长度。 (6)输出从栈顶到栈底的元素。 (7)输出出栈序列。 (8)判断栈S是否非空。 (9)释放栈
上传时间: 2016-12-11
上传用户:13160677563
made by: kangkai data:2008.11.23 this one is used to test arm7 str71x. use a led to test GPIO. a---------P0.0 b---------P0.1 c---------P0.2 d---------P0.3 e---------P0.4 f---------P0.5 g---------P0.6 just run it and you will see the led to show 0-9 all the time.
上传时间: 2016-12-16
上传用户:moerwang