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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

Is there a rule-of-thumb for how to best divide data into training and validation sets? Is an even 50/50 split advisable? Or are there clear advantages of having more training data relative to validation data (or vice versa)? Or is this choice pretty much application dependent? ...
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C# Iterate through Class properties

I'm currently setting all of the values of my class object Record . 4 Answers 4 ...
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Do c++11 lambdas capture variables they don't use?

When I use [=] to indicate that I would like all local variables to be captured by value in a lambda, will that result in all local variables in the function being copied, or just all local variables that are used by the lambda ? ...
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Reformat XML in Visual Studio 2010

Is there an easy way to reformat an XML file while viewing it Visual Studio 2010. For example, if you open a generated app.config file, it might look like: ...
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Collections.emptyList() returns a List?

I'm having some trouble navigating Java's rule for inferring generic type parameters. Consider the following class, which has an optional list parameter: ...
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Understanding the Event Loop

I am thinking about it and this is what I came up with: 3 Answers 3 ...
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How to use JavaScript source maps (.map files)?

Recently I have seen files with .js.map extension shipped with some JavaScript libraries (like Angular ), and that just raised few questions in my head: ...
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TemplateDoesNotExist - Django Error

I'm using Django Rest Framework. and I keep getting an error 5 Answers 5 ...
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How to change the DataTable Column Name?

I have one DataTable which has four columns such as 7 Answers 7 ...
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How to randomly pick an element from an array

I am looking for solution to pick number randomly from an integer array. 12 Answers 12...