Bing is a point-to-point bandwidth measurement tool (hence the b ), based on ping. Bing determines the real (raw, as opposed to available or average) throughput on a link by measuring ICMP echo requests roundtrip times for different packet sizes for each end of the link
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 Java web application, based on Struts and Hibernate, that serves as an online running log. Users may enter information about workouts, and can track historical performance and data using web-based charts.
樣板 B 樹 ( B - tree )
規(guī)則 :
(1) 每個節(jié)點內(nèi)元素個數(shù)在 [MIN,2*MIN] 之間, 但根節(jié)點元素個數(shù)為 [1,2*MIN]
(2) 節(jié)點內(nèi)元素由小排到大, 元素不重複
(3) 每個節(jié)點內(nèi)的指標(biāo)個數(shù)為元素個數(shù)加一
(4) 第 i 個指標(biāo)所指向的子節(jié)點內(nèi)的所有元素值皆小於父節(jié)點的第 i 個元素
(5) B 樹內(nèi)的所有末端節(jié)點深度一樣
