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How to detect a Christmas Tree? [closed]

... I have an approach which I think is interesting and a bit different from the rest. The main difference in my approach, compared to some of the others, is in how the image segmentation step is performed--I used the DBSCAN clustering algorithm from Python's scikit-learn; it's opt...
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How to architect an Ember.js application

...gular for most of my projects, I find it requires less JavaScript and is a bit easier to wrap my head around. Your MVC choice is completely personal, so don't let me sway you. – PeteLe Jan 8 '13 at 14:45 ...
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What is meant by Resource Acquisition is Initialization (RAII)?

...C++ developers miss when they switch to other languages. There has been a bit of a movement to try to rename this concept as Scope-Bound Resource Management, though it doesn't seem to have caught on just yet. When we say 'Resource' we don't just mean memory - it could be file handles, network so...
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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?

... The description of permit is a bit off: permit returns another hash that contains only the permitted key AND (this is critical) will respond with true to the permitted? method. By default, an instance of the ActionController::Parameters class will return f...
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Can a C# class inherit attributes from its interface?

... system. There isn't a good reason for this kind of stuff. Reflection is a bit hokey. I've added comments to explain the nonsense. (This is .NET 3.5 because this it just happens to be what the project I'm doing at the moment is using.) // in later .NETs, you can cache reflection extensions using a...
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If Python is interpreted, what are .pyc files?

... of gray scales, not a black or white situation, and it would be utterly arbitrary to put a threshold at some given level and say that only above that level you call it "compilation"!-) share | impr...
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Returning value from called function in a shell script

...ode it: mkdir "$lockdir" || exit 1 but the resulting error message is a bit obscure. share | improve this answer | follow | ...
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How to detect if a property exists on an ExpandoObject?

...lass of DynamicObject, which won't throw an Exception when you check any arbitrary property name for null. Suppose you might declare a property like: @{ ViewBag.EnableThinger = true; } Then suppose you wanted to check its value, and whether it's even set - whether it exists. The following is...
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Add line break within tooltips

... if entity code 
 doesn't work, try 
 i am using linux and chrome not sure about other browsers – Krishna Nov 1 '16 at 9:20 4 ...
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How to delete a row by reference in data.table?

... thanks, nice one. To speed up a little bit (especially with many columns) you change DT[, col:= NULL, with = F] in set(DT, NULL, col, NULL) – Michele Jul 7 '14 at 17:13 ...