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How to detect a Christmas Tree? [closed]

...ompared 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 optimized for finding somewhat amorphous shapes that may not necessarily have a single clear centroid. At the top level, my approach is fairly s...
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How to implement classic sorting algorithms in modern C++?

...yond. Syntactical goodies C++14 provides transparent comparators of the form std::less<> that act polymorphically on their arguments. This avoids having to provide an iterator's type. This can be used in combination with C++11's default function template arguments to create a single overloa...
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ObservableCollection Doesn't support AddRange method, so I get notified for each item added, besides

...d an NotifyCollectionChanged event for the item added). To get the best performance for a large update a complete replacement for ObservableCollection is required. – Gone Coding Sep 16 '10 at 10:57 ...
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What is a plain English explanation of “Big O” notation?

I'd prefer as little formal definition as possible and simple mathematics. 41 Answers ...
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App Inventor 2 扩展 · App Inventor 2 中文网

...rammable in the App Inventor framework, using extension components that perform the necessary processing. Anyone can create extension components. This requires gaining familiarity with the App Inventor source code (located on Github) and programming the extension in Java. Extension components are...
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What are the differences between virtual memory and physical memory?

...ery simple premise - they require memory. The device OS provides it in the form of RAM. The amount of memory required may vary - some softwares need huge memory, some require paltry memory. Most (if not all) users run multiple applications on the OS simultaneously, and given that memory is expensive...
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Why does modern Perl avoid UTF-8 by default?

...g with Unicode data. You need to use the Unicode::GCString module for the former, and both that and also the Unicode::LineBreak module as well for the latter. See uwc and unifmt. If you want them to count as integers, then you are going to have to run your \d+ captures through the Unicode::UCD::num...
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“Thinking in AngularJS” if I have a jQuery background? [closed]

...ost part); your model represents your data; you have a service layer to perform reusable tasks; you do DOM manipulation and augment your view with directives; and you glue it all together with controllers. This was also mentioned in other answers, and the only thing I would add pertains to testabili...
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What is the list of supported languages/locales on Android?

...ettings, though). When using ISO 639-1 codes, the resource folder has the format values-xx... where xx is the ISO-639-1 code. When using BCP 47 tags, the resource folder is named values-b+xxx... where xxx is the three-letter language code. Here's the list for before Android 2.3 (Source) Lang...
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tinyxml XML解析库下载(tinyxml2.h 和 tinyxml2.cpp) - 源码下载 - 清泛...

... g++ -Wall -DDEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exe Formatting, Artistic Style: AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preprocessor tinyxml2.cpp tinyxml2.h */ #if defined( _DEBUG ) || defined( DEBUG ) || defined (__DEBUG__) # ...