Talk:Decision theory

message: There was a miserable little stub here, which got itself listed on VfD.  I have now written the beginnings of a real article, and I hope no-one will still consider it deletable.  But what I have put in is very much a psychologist's perspective - we need some help here from economists, mathematicians, statisticians, and management scientists.  This ought to grow into a keystone article, it crosses so many boundaries.  seglea 05:40, 29 Jan 2004 (UTC)
thread_title: Untitled

message: Sanjiv swarup (talk) 16:07, 17 June 2008 (UTC)
replies: text: Also comments on this very page at pragmatic v formal.Cretog8 (talk) 16:35, 17 June 2008 (UTC)
thread_title:  Difference between decision theory and game theory 

message: In signal processing/statistics/communications, this is known as detection theory.  I don't want to say that one name is correct over the other, but I also don't want two articles heavily overlaping.  It seems decision theory is geared more toward "making decisions" (1 ton of guns & 3 tons of butter vs. 2 tons of guns & 1 ton of butter) while detection theory is more about choosing/detecting (is the signal present or not?).
I think there's room for both since the technical and less-technical call them different things... Cburnett 05:24, Apr 21, 2005 (UTC)
:Further point, :Category:Decision theory has only one parent category: :Category:Management. Cburnett 05:25, Apr 21, 2005 (UTC)
I can't see that detection/decision theory are the same at all. They cover some of the same ground, but in quite different ways; eg decision theory seems much more general (even abstract), though MCDA etc is very applied. Possibly it could be argued that detection theory is a specific application of decision theory, but I don't know enough about it to say whether that's a helpful way of putting it. Rd232 09:31, 21 Apr 2005 (UTC)
thread_title:  Decision theory vs. Detection theory 

message: I'm not sure if these two things are the same (I suppose Rational choice theory might be ideal decision theory and thus a distinct theory), but if they're not the same, the difference between them probably needs to be discussed on each of the pages. KSchutte 19:22, 12 March 2006 (UTC)
thread_title:  Proposed merger 

message: I removed "[Editor's note: this is not an accepted use of the term 'commensurable'.]" because that sort of commentary belongs here on the discussion page. Either the term *is* the accepted term used in decision theory in which case the use is fine, or else there is some other term that is used instead, in which case you can just replace commensurable with the proper term. Or if the word just has a different meaning in decision theory than in economics, that can be pointed out without making it seem like an error. Jackdavinci 06:53, 22 July 2006 (UTC)
thread_title: Commensurable

message: I propose these pages are merged as they seem to be covering the same material. Thoughts? Andeggs 15:29, 23 December 2006 (UTC)
replies: text: I would oppose this, as decision analysis seems to be a prescriptive approach advocating rational choice based models in making decisions, and the concept is geared towards business people.  Decision theory is (to me) a field of applied math (economics, AI, etc) that attempts to model different ways of making decisions, which includes rational choice models, but also includes more subjective models. Smmurphy(Talk) 04:04, 25 March 2007 (UTC)

text: I also oppose for similar reasons. -Gomm 19:46, 26 March 2007 (UTC)

text: My interpretation of decision analysis is based in the article, as I don't know much about it.  Looking at the bibliography and seeing Raiffa, maybe they are the same thing after all, I'm not sure.  Anyway, the last two lines of decision analysis about it being prescriptive don't seem to fit with how some might see decision theory. Less those two lines, everything in that article could be merged here (most of it is here already).  If we did this, I think that a separate section on decision analysis or "applied decision theory" for its uses in business and government might help, and might show why the other name redirects here. Smmurphy(Talk) 02:52, 4 June 2007 (UTC)
thread_title:  Merge with decision analysis 

message: I'm going to write an article on calibrated probability assessments.  This is based on the observed phenomenon that training has been shown to improve a person's ability to place odds on uncertain estimates and events.  In other words, of a large number of times when a calibrated person says they are 80% confident in a projection, they will right about 80% of the time.
I was considering making a separate article but, after looking at the sub-articles herein, maybe it should be merged with this.  Any ideas?
The research comes from Sarah Lichtenstein, J. Edward Russo, and more.  Alternate terms for same are "calibration of probabilities" or "calibrated assessment of probabilities".Hubbardaie 03:56, 16 June 2007 (UTC)
thread_title:  Calibrated Probability Assessments article 

message: This article starts off like an advertising campaign rather than a neutral presentation.  
:::Decision theory is an area of study of discrete mathematics, related to and of interest to practitioners in all branches of science, engineering and in all human social activities."
Decision theory is "of interest to" pretty much everybody who ever lived?  I humbly disagree.  It is of interest to persons who want to study models of decision-making (especially normative models).  But it is a bit overboard to claim that all engineers and scientists are interested in (or ought to be interested in) this particular model, much less housewives and others involved in "human social activities".  
This article isn't really my pet, so I hope that someone else will edit the sentence and tone down the hyperbole. Phiwum 19:17, 28 September 2007 (UTC)
thread_title:  Introductory sentence. 

message: I've added it to WP:CS for it's relevance to Artificial Intelligence and Decision engineering. Diego (talk) 13:47, 10 July 2009 (UTC)
thread_title:  Computer science project 

message: Please excuse me if I have incorrectly placed my thoughts. Curiously I was looking to find an article related to decision making and its process. Wondering myself that if at any given time as choices and decisions are being made that(hypotheticaly)given the same information and within the same environment would the same decision have been made, not knowing any better at the time? Wouldn't this then somehow make the preamble of "How we make a choice" and understanding how unilateral choices truely are? Assuming of course that I am able to rationalize within a set of predetermined parameters the out come of my choice (chosing to do anything at all) has already been made. 
Typing this text right here right now? Should I now be able to back in time without knowing the outcome I would have made the same choice to go ahead and type this text.
Perhaps if that is such the case then maybe we are pre-destined for everything. As if the course then of our lives have been fully planned for our eventuality.
Afterall the only thing that we really know is that we don't know anything. :)  —Preceding unsigned comment added by Cjuner (talk • contribs) 20:04, 13 October 2009 (UTC)
thread_title:  [Unsigned, chaos] 

message: Article states:
The phrase "decision theory" itself was first used in 1950 by E. L. Lehmann.[citation needed]
Would that be:
Lehmann, E.L.; Scheffé, H. (1950). "Completeness, similar regions, and unbiased estimation. I.". Sankhyā: The Indian Journal of Statistics 10 (4): 305–340. MR39201. JSTOR 25048038 -- (from E. L. Lehmann?  I don't have convenient access to article on JSTOR.  If you do, and can confirm, please cite as such.  Alternatively, delete mention of his first use.
OED, Second edition, 1989; online version November 2010, states (not first use, certainly, as Chernoff & Moses published Elementary Decision Theory in 1959, based on nine years of course notes):
decision theory n.
1961 				   			  Jrnl. Acoustical Soc. Amer. XXXIII. 358/1   				An algorithm based on statistical *decision theory.
1964 				   			  T. W. McRae Impact of Computers on Accounting v. 120   				Decision theory is probing the psychology of decision making, and attempts to provide an algorism for taking decisions. 
-- Paulscrawl (talk) 04:20, 3 December 2010 (UTC)
replies: text: I do have access to the full text of the 1950 Sankhyā article but it doesn't mention 'decision theory'. (It does mention 'decision functions' but it's certainly not the first use of that term as it references a 1947 paper by Abraham Wald with that term in the title.) --Qwfp (talk) 13:51, 3 December 2010 (UTC)
thread_title:  First use of "decision theory" citation needed 

message: https://en.wikipedia.org/wiki/Decision_theory#Paradox_of_choice is missing. Where can I find this paragraph? --80.243.61.37 (talk) 07:33, 14 September 2015 (UTC)
thread_title:  #Paradox_of_choice is missing 

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thread_title:  External links modified