23.txt

This complete matlab for neural network

发信人: sn (小龙), 信区: DataMining
标  题: Re: 国内有没有人做过Olap analysis engine?
发信站: 南京大学小百合站 (Wed Mar 20 19:32:40 2002), 站内信件

Thanks for your advice.
There are many OLAP implementation and oriention, like Oracle's JOLAP,
microsoft's xml analysis, and other implementation, all accomodating a 
well-wrapped programming component and a client tool which is easy to use 
and owns a nice user interface.

I just want to build one for my project implementation, it may be fit for the 
small or middle company which want to own olap analysis and don't want to pay 
too much for it.
And it's fun to build a Olap analysis engine.

I will take care of the data transfer betwwen the client and the server, than
k you.




【 在 fervvac (高远) 的大作中提到: 】
: I've got your motivation. Here are some rough thoughts that came to my 
: mind immediately:
: 1) Why not leverage on existing OLAP engines? You mentioned the customers
:    need to buy a RDBMS. If they use Windows and buy MS SQL Server, the OLAP..
:    Of course, this argument can be easily defeated, :p
: 2) ROLAP engines usually employs special technologies to accelerate query 
:    processing, such as bitmap index, star-join, etc., apart from data cube and
:     materialized view. Efficiency will be compromised if those parts are
:    missing or done exterior to the DBMS kernel.
:    Of course, if the data volume is small, that's not a big deal.
: 3) So I guess it might be practical only if the data is not big and customers
:    are poor (, :p). My suggestion is that you might need to do some
:    proessing on the client side to avoid too much data transfer over the
:    network.
: 【 在 sn (小龙) 的大作中提到: 】
: : I am in a corporation, my aim is to build a system that can be used in my 
: : project implementtation, you know that Olap server is expensive, and I of..
: : do some small project, the customer don't want to spend that much, but they 
: : want to own the olap analysis. 
: (以下引言省略 ... ...)

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