(re)search » research http://rohitj.net/research searched research Sun, 07 Jun 2009 23:19:41 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Picking sample data keeping some data characteristics preserved http://rohitj.net/research/2008/09/26/picking-sample-data-keeping-some-data-preserved/ http://rohitj.net/research/2008/09/26/picking-sample-data-keeping-some-data-preserved/#comments Fri, 26 Sep 2008 22:04:23 +0000 rohitj http://rohitj.net/research/?p=9 I just figured that its very easy to keep standard deviation of each subtree in a binary tree. And this made me think of a problem. I don’t know if people have already been working on it or not. But its an interesting problem. Suppose I have a large data of numbers. And someone asks me to give him k numbers so that they have the same average. How do I do that?

Let me express it in mathematical form. You are given ‘n’ numbers, a_1,a_2,\ldots,a_n. Give me ‘k’ numbers out of these ‘n’ numbers so that their average is nearest to \sum{}{}a_i

]]> http://rohitj.net/research/2008/09/26/picking-sample-data-keeping-some-data-preserved/feed/ 0 Introduction http://rohitj.net/research/2008/09/19/introduction/ http://rohitj.net/research/2008/09/19/introduction/#comments Fri, 19 Sep 2008 17:36:21 +0000 admin http://rohitj.net/research/?p=3 This is yet another attempt to start a research blog. The previous research blog couldn’t work out because I wasn’t able to do much of research and also life was very busy back in IITK. Now then I am at Purdue, and now then I am doing PhD, I think I will get to do enough research. I am not sure if I will get enough time to write about it, but I will try. Atleast on weekends.

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