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Difference between classification and clustering in data mining? [closed]

...neral, in classification you have a set of predefined classes and want to know which class a new object belongs to. Clustering tries to group a set of objects and find whether there is some relationship between the objects. In the context of machine learning, classification is supervised learning ...
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what exactly is device pixel ratio?

this is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure. Can anyone please elaborate what does queries like this check? ...
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Copying data from one SQLite database to another

... 2 AM /mnt/fastaccessDS/core/csv/allmsa.db now you come to your actual target. Use the command INSERT INTO atlanta SELECT * FROM AM.atlanta; This should serve your purpose. share |...
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The specified type member 'Date' is not supported in LINQ to Entities Exception

... Note that EntityFunctions is deprecated in EF6, you should now use DbFunctions. – Julien N Jan 8 '14 at 14:15 2 ...
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UILabel - auto-size label to fit text?

... @Zeezer do you know why? – FurloSK Jul 15 '15 at 10:10 13 ...
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Can I use view pager with views (not with fragments)

... me a lot... i extended PageAdapter instead of FragmentPageAdapter........ now its work fine..... – ranjith Sep 10 '13 at 4:39 3 ...
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git: updates were rejected because the remote contains work that you do not have locally

... Wow...I never knew that. But it makes a lot of sense now. The master branch was also incorrect, so your answer clears my whole question. I'm still a bit new to git. Thanks a lot for telling me the difference between those two! – delos Jun ...
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Handling optional parameters in javascript

... You can know how many arguments were passed to your function and you can check if your second argument is a function or not: function getData (id, parameters, callback) { if (arguments.length == 2) { // if only two arguments were s...
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Could not execute editor

...et the full path to vi (e.g. /usr/bin/vi) rather than just the executable. Now everything works. I have to admit that I don't get it since vi is perfectly executable on its own (my $EDITOR env variable is also set to vi), but it's working and my technical karma hasn't been so great lately so maybe I...
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How do I run Asynchronous callbacks in Playground

... guard let data = data, error == nil else { print(error ?? "Unknown error") return } let contents = String(data: data, encoding: .utf8) print(contents!) }.resume() PlaygroundPage.current.needsIndefiniteExecution = true Or in Swift 2: import UIKit import XCPlaygro...