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- From: f175003@wilma.ucdavis.edu
- Newsgroups: comp.ai,sci.math,sci.math.stat
- Subject: Looking for Good Intro to Bayesian Classifiers
- Message-ID: <19293@ucdavis.ucdavis.edu>
- Date: 16 Nov 92 21:25:27 GMT
- Sender: usenet@ucdavis.ucdavis.edu
- Followup-To: comp.ai
- Distribution: usa
- Organization: Computing Services, UC Davis
- Lines: 29
- Originator: f175003@wilma.ucdavis.edu
-
- I am looking for a book or paper with a good introduction into using
- Bayesian Classifiers preferably with a few examples showing how to
- determine the probabilities. I understand the idea behind a Bayesian
- Classifier, but I have looked at a couple of examples of Bayesian
- Classifiers and they appeared to use maximum likelihood estimators to
- determine the values for the various probabilities. According to my
- statistics book, this method provides excellent estimates if the sample
- size is large, but in the cases I hope to be dealing with I will only
- have a few samples and want to get as much information from them as I can.
-
- There has also been some discussion here about whether
- there exist some values for the probabilities of the classes and the
- probabilities of the various attributes given the class, which tells
- you as much as possible from the given samples. The methods I have
- seen require a prior distribution and show you how to determine the
- posterior distribution after seeing each example. One then chooses a value
- from this distribution using their favorite function, such as mean, median,
- or mode, or equivalently by using some loss function. It seems that their
- is no value for the probabilities which will give you as much
- information as possible about the samples without chosing some
- type of loss function. Is this correct and is there some way to
- prove if it is or is not correct?
-
- Please reply via email. I'll appreciate any help I can get.
-
- Robert Davis
- Department of Computer Science
- University of California, Davis
- email: davisr@cs.ucdavis.edu
-