1) two theme shift
二次主题漂移
2) topic drift
主题漂移
1.
To interpret the procedure of hypertext induced topic search (HITS) based on a semantic relation model, the reason about the topic drift of HITS was found that Web pages are projected to a wrong latent semantic basis.
从语义相关性角度分析超链归纳主题搜索(HITS) 算法,发现其产生主题漂移的原因在于页面被投影到错误的语义基上,因此提出了一种个性化的主题提取和层次发现算法(PTDHE),通过个人查询日志扩展查询词,构造符合用户需要的个性化根集和基础集合,达到防止主题漂移的目的。
2.
HITS is one of the classical link analysis algorithms,the main problem of it is the topic drift.
HITS是一种经典的链接分析算法,其主要问题是容易发生主题漂移。
3.
To interpret the procedure of hypertext induced topic search based on a semantic relation model,the reason about the topic drift of HITS has been found that Web pages are projected to a wrong latent semantic basis.
从语义相关性角度分析超链归纳主题搜索(HITS)算法,发现其产生主题漂移的原因在于页面被投影到错误的语义基上,因此引入局部密集因子LDF(Local Density Factor)的概念。
3) topic draft
主题漂移现象
4) drift problem
漂移问题
1.
A new multi-description video coding scheme based on distributed source coding is proposed to solve the drift problem of the multi-description video codec under packet loss channels.
为了解决多描述视频编码器在丢包信道下的漂移问题,本文提出了一种新的基于分布式视频算法的多描述视频编码方案。
5) Main drift chamber
主漂移室
1.
Fast track reconstruction of the BESIII main drift chamber;
北京谱仪Ⅲ主漂移室快速径迹重建系统
2.
Study on the electromagnetic interference from BES shower counter to main drift chamber with experiments;
北京谱仪簇射计数器对主漂移室电磁干扰的实验研究
3.
Fast reconstruction algorithm in main drift chamber for the BESIII event filter.;
北京谱仪Ⅲ事例筛选的主漂移室快速重建算法实现
6) MDC
主漂移室
1.
Application study of HPTDC for time measurement of BESIII MDC;
BESIII主漂移室时间测量中HPTDC的应用研究
2.
This paper describes a design of the TDC (Time Digital Converter) module based on FPGA which is aimed to be used in the time measurement system of BESIII MDC.
设计了一种基于FPGA的TDC(TimeDigitalConverter)电路,目的在于研究一种可以在北京谱仪III的主漂移室时间信息获取中使用的方案。
3.
This circuit is used in BES Trigger System to reject the background caused by interference in MDC.
该电路用在北京谱仪触发判选系统中,作为排除由于干扰信号造成主漂移室成片着火的本底事例。
补充资料：输出反馈(见线性二次型次优控制)
输出反馈(见线性二次型次优控制)
output feedback
3h日c卜口fon以以{输出反馈型次优控制。(output王eedbaek)见线性二次
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条