Timeline for Is there a problem of over fitting in my dataset?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Oct 2, 2018 at 7:48 | comment | added | Ignacio Alorre | @NeilSlater Perfect. It is clear now, didnt that the itnernal cross-validation splits where named itself training set and cross validation set. | |
| Oct 2, 2018 at 7:46 | comment | added | Neil Slater | @IgnacioAlorre: Yes, I already reference k-fold cross-validation in the answer. Whether you view that as having "2 data sets" or "repeatedly splitting into train/cv sets" is just semantics - probably driven by whether you are implementing it yourself, or feeding the whole training set into a method which does it for you. | |
| Oct 2, 2018 at 7:43 | comment | added | Ignacio Alorre | @NeilSlater Thanks for the quick reply. But there the debate is cross-validation vs test set. What I mean is use the training set for a 10-fold cross validation, and later use the test set to get some metrics over the prediction obtained. So instead of trainin set and cross validation set, as you pointed out, apply the 10 fold cross validation over the training set. | |
| Oct 2, 2018 at 7:41 | comment | added | Neil Slater | @IgnacioAlorre: datascience.stackexchange.com/questions/18339/… - but yes you can use k-fold cross validation, which is effective but more time-consuming. I already mention that in the answer. | |
| Oct 2, 2018 at 7:39 | comment | added | Ignacio Alorre | @NeilSlater Why three: training set, cross-validation set and test set? I though cross-validation is a technique to use over the training set. For example using a 10-fold crossvalidation, you train/test grouoing the training set into 10 different groups. | |
| Aug 8, 2016 at 13:49 | history | edited | Neil Slater | CC BY-SA 3.0 | added 496 characters in body |
| Aug 8, 2016 at 7:38 | history | edited | Neil Slater | CC BY-SA 3.0 | added 449 characters in body |
| Aug 8, 2016 at 7:37 | vote | accept | girl101 | ||
| Aug 8, 2016 at 7:29 | comment | added | girl101 | @Dawny33 I have updated the question | |
| Aug 8, 2016 at 7:23 | comment | added | Dawny33 | I'm a simple data guy. If I see a cross validation advice, I give a +1 :D | |
| Aug 8, 2016 at 7:19 | history | answered | Neil Slater | CC BY-SA 3.0 |