95.txt

This complete matlab for neural network

发信人: fervvac (高远), 信区: DataMining
标  题: Re: 这种问题该怎么解决
发信站: 南京大学小百合站 (Mon Jul 14 11:58:08 2003)

1. Look at T^3 project (http://www.microsoft.com/sql/evaluation/bi/terabytecu
be/overview.asp)
   Your should believe that ur problem can  be solved.
2. Not using MDX? Besides, I don't think language itself is very important. One
   can easily impmement the extension that calls the additional functions
  exposed by the underlying system.
3. Only valid combinations of dimension values have corresponding entries in
   the cube. Your previous concern is therefore unfounded. 
4. I suggest you look into the documents of ms analystical serveric in more
   details.

【 在 billylin (厄运打不垮的信念) 的大作中提到: 】
: 的确，数据压缩的确是可以减轻很多开销
: 我现在比较疑惑的是，这么多统计工作，应该只有用sql写存储过程放在服务器端执行才
: 可以，但无论是数据压缩也好，统计计算也好，sql这种非过程的语言究竟能做得到吗？
: 【 在 fervvac (高远) 的大作中提到: 】
: : In theory, rang sum cube can compute such answers very efficiently. The 
: : only problem is its expensive update cost.
: : There are also some recent advances in constructing a semantically compre..
: : cube. The perfromance of many queries are expected to be much faster due
: : to the reduction of cube size.


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