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i don't know this question suited to which one. Generated Sun, 02 Oct 2016 01:56:07 GMT by s_hv977 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.8/ Connection permalinkembedsaveparentgive goldaboutblogaboutsource codeadvertisejobshelpsite rulesFAQwikireddiquettetransparencycontact usapps & toolsReddit for iPhoneReddit for Androidmobile websitebuttons<3reddit goldredditgiftsUse of this site constitutes acceptance of our User Agreement and Privacy Policy (updated). © 2016 reddit inc. You need something called a "decision rule" that will tell you which class to pick given some value of X. navigate here

How do **you decide which class** to pick? I was hoping someone might have an Idea. The system returned: (22) Invalid argument The remote host or network may be down. Also, your observed error rate is a random variable, that can be higher or lower than the true Bayes error - for example, your Bayes error is .2, but 5 emails

permalinkembedsavegive gold[–]Bromskloss 0 points1 point2 points 1 year ago(4 children)I'm afraid I don't know what you're referring to by "the error rule". Please try the request again. Browse other questions tagged probability self-study normality naive-bayes bayes-optimal-classifier or ask your own question. Bayes error rate From Wikipedia, the free encyclopedia Jump to: navigation, search In statistical classification, the Bayes error rate is the lowest possible error rate for any classifier of a random

permalinkembedsaveparentgive gold[–]autowikibot 1 point2 points3 points 1 year ago(0 children) Bayes error rate: In statistical classification, the Bayes error rate is the lowest possible error rate for a given class of permalinkembedsaveparentgive gold[–]OlTartToter[S] 1 point2 points3 points 1 year ago(0 children)This seems very useful. Your cache administrator is webmaster. Bayes Error Wikipedia permalinkembedsaveparentgive gold[–]OlTartToter[S] 0 points1 point2 points 1 year ago(0 children)Why am I being down voted?

You have some data, summarized in a statistic called X, in the case of Gaussian data this will be the mean of your data points (or if you get just a Bayes Error Example But if you are trying to minimize some other kind of error such as false positives (because for example, you think it is worse to send a good email to the see their chapter about it here. permalinkembedsavegive gold[–]OlTartToter[S] 0 points1 point2 points 1 year ago(3 children)https://en.wikipedia.org/wiki/Bayes_error_rate I know this should explain it but I've read it several times and I'm not sure I completely follow with respect to the

However, sometimes a question is restarted as a new one when the earlier version collects too many comments that are made irrelevant by the edits, so it's a judgment call. Bayes Error Gaussian The Bayes error rate finds important use in the study of patterns and machine learning techniques. [citation needed] Interesting: Sensitivity and specificity | List of things named after Thomas Bayes | Generative Approach Assuming a generative model for the data, you also need to know the prior probabilities of each class for an analytic statement of the classification error. The system returned: (22) Invalid argument The remote host or network may be down.

Now, recall that these curves -- probability density functions -- do not give you probability at a given point X -- you have to integrate to get that. spectral norm of block-wise sums of matrices Is this safe to display MySQL query error in webpage if something went wrong? Bayes Error Rate Example Generated Sun, 02 Oct 2016 01:56:07 GMT by s_hv977 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection Bayes Error Rate In R I assume this is the approach intended by your invocation of the Bayes classifier, which is defined only when everything about the data generating process is specified.

Realism of a setting with several sapient anthropomorphic animal species Can Customs make me go back to return my electronic equipment or is it a scam? check over here probability self-study normality naive-bayes bayes-optimal-classifier share|improve this question edited May 25 at 5:26 Tim 22.2k45296 asked Nov 26 '10 at 19:36 Isaac 490615 1 Is this question the same as How to extrude a face parallel to another? Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. Bayes Error Wiki

Bayes wants you **always to pick** the class with the highest curve given X. Your cache administrator is webmaster. So if we want actual probability instead of this "concentration" thing, we integrate -- i.e. http://gatoisland.com/bayes-error/bayes-error-wiki.php The Elements of Statistical Learning (2nd ed.).

In any event it's helpful to place cross-references between closely related questions to help people connect them easily. –whuber♦ Nov 26 '10 at 20:52 add a comment| 3 Answers 3 active Optimal Bayes Error Rate Is it against the rules? –Isaac Nov 26 '10 at 20:49 It might be easier, and surely would be cleaner, to edit the original question. Another approach focuses on class densities, while yet another method combines and compares various classifiers.

BMC Bioinformatics 5:119 (2004) Home Mathematical Model Scripts Application to Real Data Paper Manuscript SUBMIT DATA ON-LINE The Bayes Error Rate To learn more about The Bayes Error Rate we Please try the request again. One thing to keep in mind is you practically never know what the true Bayes error rate is. Bayes Classification Error I accepted a counter offer and regret it: can I go back and contact the previous company?

For the problem above, it corresponds to volumes of following regions You can integrate two pieces separately using some numerical integration package. A Gaussian has thin **tails, if the true distribution with** fatter tails Bayes error rate will be higher. Its reference 2 fleshes it out more, though. weblink That is your probability of choosing wrong when you decide the class using Bayes' Rule -- so we call it Bayes Error.

You get two overlapping Gaussian distributions, one for each class conditional on the data, as in this pic . Your cache administrator is webmaster. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2766788/ share|improve this answer answered Nov 27 '10 at 12:13 mariana soffer 87911315 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using By using this site, you agree to the Terms of Use and Privacy Policy.

How would family relationships change if legal system uses collective punishment? Generated Sun, 02 Oct 2016 01:56:07 GMT by s_hv977 (squid/3.5.20) Not the answer you're looking for? A number of approaches to the estimation of the Bayes error rate exist.

book... For the problem above I get 0.253579 using following Mathematica code dens1[x_, y_] = PDF[MultinormalDistribution[{-1, -1}, {{2, 1/2}, {1/2, 2}}], {x, y}]; dens2[x_, y_] = PDF[MultinormalDistribution[{1, 1}, {{1, 0}, {0, 1}}], Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. The Bayes error rate of the data distribution is the probability an instance is misclassified by a classifier that knows the true class probabilities given the predictors.

Plot your finger at that point on the X axis and drag your finger up. Please try the request again. How to increase the population growth of the human race Convince people not to share their password with trusted others A name for a well-informed person who is not believed? Will also delete on comment score of -1 or less. | FAQs | Mods | Magic Words permalinkembedsaveparentgive gold[–]Bromskloss 1 point2 points3 points 1 year ago(1 child)I must say that the definition given

Or 'pnorm()' in R. Another approach focuses on class densities, while yet another method combines and compares various classifiers.[2] The Bayes error rate finds important use in the study of patterns and machine learning techniques.[3] The "Bayes Decision Rule" is this: whichever class's curve is higher at that point, that is the class you pick. Last modified: Mar/2004 ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.6/ Connection to 0.0.0.6 failed.

The system returned: (22) Invalid argument The remote host or network may be down. One method seeks to obtain analytical bounds which are inherently dependent on distribution parameters, and hence difficult to estimate. Your cache administrator is webmaster.

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