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📄 174.txt

📁 This complete matlab for neural network
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发信人: GzLi (笑梨), 信区: DataMining
标  题: [合集]about Opportunistic projection
发信站: 南京大学小百合站 (Thu Oct  3 22:12:27 2002), 站内信件

minerboy (miner) 于Mon Sep 16 14:50:24 2002)
提到:

谁看过!交流一下,yyj@nudt.edu.cn

helloboy (hello) 于Mon Sep 16 15:28:16 2002提到:

me.
好像是浆很多种算法凑起来。并没有谈很具体的实现。
你的高见呢?



fervvac (高远) 于Mon Sep 16 17:19:16 2002提到:

very fast on many datasets.



helloboy (hello) 于Mon Sep 16 18:45:05 2002提到:

really?
have you done such tests?



minerboy (miner) 于Tue Sep 17 13:39:21 2002)
提到:

不知道fervvac想过没有,但我总觉得结点数的理想情况是出现次数大于支持度的Item的个
数,至于每个结点的结构,是可以考虑的,我看的算法不多(apriori和fp,这片还没完,
还有一个讲格的,那个更邪门)这个想法是不是成熟,大家讨论啊



minerboy (miner) 于Tue Sep 17 13:43:26 2002)
提到:

:)it is a paper on kdd2002,



helloboy (hello) 于Tue Sep 17 15:09:15 2002提到:

I think op can be improved further.



fervvac (高远) 于Wed Sep 18 02:26:27 2002提到:

Sure, it is kindof hybrid approaches and sometimes really opportunistic, :)

as for minerboy's question, I am not sure what your ideal case means. At the
first thought, do u mean there are only nodes or any structure that 
corresponds to the output?

Theoretical result sof AR mining is still missing
and makes the situation chatotic, :)



minerboy (miner) 于Wed Sep 25 20:22:02 2002)
提到:

sorry for so late to return it, 我的意思是在看了fp算法的基础上得来的,在fp中有
的项需要在树中生成若干节点,我在想是不是可以把它们并一块去而不丢失信息:)

需要你们的指教!

这样可能内存中保存的东西最小,没准生成频繁模式集时更快!!!

我做过测试,这样会丢失信息,不知道opTree如何,正在看





minerboy (miner) 于Wed Sep 25 20:24:15 2002)
提到:

另外,请大家跟我邮件联系讨论,共同进步:)yyj@nudt.edu.cn





helloboy (hello) 于Thu Sep 26 18:07:03 2002提到:

I can't quite understand your idea.
opTree, in fact, is a hybrid method, which is not implemented detailedly.



fervvac (高远) 于Sat Sep 28 14:21:01 2002提到:

Maybe minerboy can illustrate his idea by a concrete example?



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