Talk:Estimation

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Why does this article mention software? Estimation is a much, much broader topic than that. It's a way of using math to cope with the world, isn't it? In industry, estimation probably is most often associated with estimating the construction cost of buildings. Software development seems a very small part of the story of estimation.


There is also estimation in the Harry Van Trees sense, applied to random variables, where we use statistical knowledge to estimate the value of a variable we can't observe based on some other variable that we can observe. There are various special cases of this such as detection, where the hidden variable is a boolean. Estimation is some of the mathematics behind modems and radars. (The hidden variable for the modem is "what bit did the sender think he was sending?" and for the radar "is there an aircraft up there, and what is its precise location?"). The same math is also used in medical imaging.

http://www.amazon.com/exec/obidos/tg/detail/-/0471095176/104-9158830-1284763

http://web.mit.edu/6.432/www/

I took this course a few years back and it was way cool. I know MIT is working on putting their lecture notes online, I'm really looking forward to when this course is there.

This antedates Harry Van Trees! See Lehmann's book Theory of Point Estimation. Ronald Fisher is one of the big names in estimation theory. Michael Hardy 16:14, 18 Dec 2003 (UTC)

"often based on approximate, uncertain, incomplete, or noisy data". I disagree. "based on incomplete data" is better. Bad data does not make the result an estimate - it is just a bad result. Insufficient data makes the result an estimate. See inferential statistics. Bo Jacoby 09:10, 9 September 2005 (UTC)

[edit] Estimation

How are the different estimate scenarios 50/50, 70/30 and 90/10 arrived at? —The preceding unsigned comment was added by 134.146.0.27 (talk) 09:20, 15 May 2007 (UTC).

[edit] Estimation in project management moved

I have moved the text on estimation in project management to a dedicated article. --Dan Polansky 12:06, 15 October 2007 (UTC)