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
实现8比特字节的RS纠错编码，可以指定极性校验字节数目，能产生的最大校验序列长度为255字节（含极性校验字节）.This is an implementation of a Reed-Solomon code with 8 bit bytes, and a configurable number of parity bytes. The maximum sequence length (codeword) that can be generated is 255 bytes, including parity bytes.
上传时间： 2016-08-24
上传用户：思琦琦
a sample WDM stream class video capture driver that supports two IEEE 1394 digital cameras. The same driver may be able to support other digital cameras that conform to 1394-based Digital Camera Specification from 1394 Trade Association. Digital camera supported by dcam.sys is a data source that produces digital image data without any other input connection. It manifests itself in a DirectShow graph as a WDM Streaming Capture Device and as a capture filter that has output capture stream supporting image sizes of 320x240 with a UYVY color space. Its de-compressor, Msyuv.dll, is part of the OS delivery, and it can convert image data format from UYVY to RGB16, RGB8, or to a Direct Draw surface if the video card supports UYVY format.
标签： supports capture cameras digital
上传时间： 2014-01-13
上传用户：yph853211
this directory contains the following: * The acdc algorithm for finding the approximate general (non-orthogonal) joint diagonalizer (in the direct Least Squares sense) of a set of Hermitian matrices. [acdc.m] * The acdc algorithm for finding the same for a set of Symmetric matrices. [acdc_sym.m](note that for real-valued matrices the Hermitian and Symmetric cases are similar however, in such cases the Hermitian version [acdc.m], rather than the Symmetric version[acdc_sym] is preferable. * A function that finds an initial guess for acdc by applying hard-whitening followed by Cardoso s orthogonal joint diagonalizer. Note that acdc may also be called without an initial guess, in which case the initial guess is set by default to the identity matrix. The m-file includes the joint_diag function (by Cardoso) for performing the orthogonal part. [init4acdc.m]
标签： approximate directory algorithm the
上传时间： 2014-01-17
上传用户：hanli8870
Name Function --- --- --- --- --- --- Check_SST_39VF160 Check manufacturer and device ID CFI_Query CFI Query Entry/Exit command sequence Erase_Entire_Chip Erase the contents of the entire chip Erase_One_Sector Erase a sector of 2048 word Erase_One_Block Erase a block of 32K word Program_One_Word Alter data in one word Program_One_Sector Alter data in 2048 word sector Program_One_Block Alter data in 32K word block Check_Toggle_Ready End of internal program or erase detection using Toggle bit Check_Data_Polling End of internal program or erase detection using Data# polling
标签： manufacturer Check_SST Function CFI_Que
上传时间： 2013-12-21
上传用户：徐孺
51单片机C语言多种点阵屏驱动程序（开发软件为keil C ---8字点阵屏左移程序，64_16点阵屏驱动程序，上移显示程序，左移显示程序）51 monolithic integrated circuit C language many kinds of lattice screen driver (develops the software is keil C ---8 character lattice screen left shift procedure, the 64_16 lattice screen driver, uppers shift the display sequence, the left shift display sequence
上传时间： 2014-01-04
上传用户：Ants
This demo shows the BER performance of linear, decision feedback (DFE), and maximum likelihood sequence estimation (MLSE) equalizers when operating in a static channel with a deep null. The MLSE equalizer is invoked first with perfect channel knowledge, then with an imperfect, although straightforward, channel estimation algorithm. The BER results are determined through Monte Carlo simulation. The demo shows how to use these equalizers seamlessly across multiple blocks of data, where equalizer state must be maintained between data blocks.
标签： performance likelihood decision feedback
上传时间： 2013-11-25
上传用户：1079836864
The System Management BIOS Reference Specification addresses how motherboard and system vendors present management information about their products in a standard format by extending the BIOS interface on Intel architecture systems. The information is intended to allow generic instrumentation to deliver this data to management applications that use CIM (the WBEM data model) or direct access and eliminates the need for error prone operations like probing system hardware for presence detection.
标签： Specification motherboard Management Reference
上传时间： 2013-12-10
上传用户：凤临西北
15篇光流配准经典文献，目录如下： 1、A Local Approach for Robust Optical Flow Estimation under Varying 2、A New Method for Computing Optical Flow 3、Accuracy vs. Efficiency Trade-offs in Optical Flow Algorithms 4、all about direct methods 5、An Introduction to OpenCV and Optical Flow 6、Bayesian Real-time Optical Flow 7、Color Optical Flow 8、Computation of Smooth Optical Flow in a Feedback Connected Analog Network 9、Computing optical flow with physical models of brightness Variation 10、Dense estimation and object-based segmentation of the optical flow with robust techniques 11、Example Goal Standard methods Our solution Optical flow under 12、Exploiting Discontinuities in Optical Flow 13、Optical flow for Validating Medical Image Registration 14、Tutorial Computing 2D and 3D Optical Flow.pdf 15、The computation of optical flow
标签： 光流
上传时间： 2014-11-21
上传用户：fanboynet
Huffman codes In telecommunication, how do we represent a set of messages, each with an access frequency, by a sequence of 0’s and 1’s? To minimize the transmission and decoding costs, we may use short strings to represent more frequently used messages. This problem can by solved by using an extended binary tree which is used in the 2- way merging problem.
标签： telecommunication represent messages Huffman
上传时间： 2014-01-04
上传用户：x4587
