856.txt

This complete matlab for neural network

发信人: waterflower (护照护照快点.............), 信区: DataMining
标  题: Re: spatial DM website
发信站: 南京大学小百合站 (Mon May 27 01:53:16 2002), 站内信件


【 在 fervvac (高远) 的大作中提到: 】
: 1. I think there are enough motivation for research into spatial DBMS (of
: course not necessarily spatial DM). The reason is that many problems can be
: converted into problems into a spatial model. Examples include multi-media 
: DB, string DB, etc.
agree,it is said that about 80 percent of the data is related to spatial,so
it's a promising field
: 2. CAnnot help if you are going to implement one, but there are many intere..
: topics, such as k-NN search or indexes for high dim data. Those are still a..
                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                I think it's difficult to think a new index 
                                structure without experience,
: research topics.
: 3. Star/Snowflake schema is used in the context of data warehouse & OLAP, :p
: 【 在 jimo (寂寞) 的大作中提到: 】
: : 正如你所说的
: : 我感觉空间数据库的雪花模型等和一般的关系数据库的结构都是差不多的
: : 至少在看起来是这样的
: : 至于其内部如何表示
: : 我觉得对于做空间数据挖掘应该可以不用太关心
: : 至于采用R树索引等
: : 应该是数据库的事情
: : (以下引言省略 ... ...)


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