标签:变化 data Fix import pen important change sam algorithm
https://drive.google.com/drive/folders/13_vsxSIEU9TDg1TCjYEwOidh0x3dU6es
https://www.cse.unsw.edu.au/~cs9313/20T2/slides/L8.pdf
Mining Data Streams
1. Data Streams
1)•Stream Management is important when the input rate is controlled externally 输入率由外部控制
2)We can think of the data as infinite and nonstationary (the distribution changes over time) 数据是无限,且一直变化的
2. DBMS VS Data Stream
1) random access is expensive(on the disk) - single scan algorithm
3. Sampling from a Data Stream
1) 取10%(fixed proportion)的数据
1) Naive Approach: 随机取百 分之十
2)
2)取fixed size的数据
标签:变化 data Fix import pen important change sam algorithm
原文地址:https://www.cnblogs.com/ChevisZhang/p/13389107.html