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幣cient．
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.
mani: MANIfold learning demonstration GUI by Todd Wittman, Department of Mathematics, University of Minnesota E-mail wittman@math.umn.edu with comments & questions.
MANI Website: httP://www.math.umn.edu/~wittman/mani/index.html
Last Modified by GUIDE v2.5 10-Apr-2005 13:28:36
Methods obtained from various authors.
(1) MDS -- Michael Lee
(2) ISOMAP -- J. Tenenbaum, de Silva, & Langford
(3) LLE -- Sam Roweis & Lawrence Saul
(4) Hessian LLE -- D. Donoho & C. Grimes
(5) Laplacian -- M. Belkin & P. Niyogi
(6) Diffusion Map -- R. Coifman & S. Lafon
(7) LTSA -- Zhenyue Zhang & Hongyuan Zha
"Everyone will want this book because it provides a great mix of practical experience, historical perspective, and a depth of understanding that only comes from being intimately involved in the field. I ve already enjoyed and learned from reading this book, and surely you will too."
-Sam Leffler
VideoMan is a very easy image acquisition library. It is able to manage many video inputs at the same time, such as WDM Firewire and USB cameras, PointGrey cameras and video files. It can also render the inputs using OpenGL. Suitable for computer vision
VideoMan is a very easy image acquisition library. It is able to manage many video inputs at the same time, such as WDM Firewire and USB cameras, PointGrey cameras and video files. It can also render the inputs using OpenGL. Suitable for computer vision
VideoMan is a very easy image acquisition library. It is able to manage many video inputs at the same time, such as WDM Firewire and USB cameras, PointGrey cameras and video files. It can also render the inputs using OpenGL. Suitable for computer vision
VideoMan is a very easy image acquisition library. It is able to manage many video inputs at the same time, such as WDM Firewire and USB cameras, PointGrey cameras and video files. It can also render the inputs using OpenGL. Suitable for computer vision
