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How do I determine k when using k-means clustering?

...nder Selb in Pattern Analysis and Applications vol. 2, p. 59-72, 1999. Finally, you can start with one cluster, then keep splitting clusters until the points assigned to each cluster have a Gaussian distribution. In "Learning the k in k-means" (NIPS 2003), Greg Hamerly and Charles Elkan show some ...
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How to interpret API documentation function parameters?

...a way as to confuse perennial newbs / hackers / DIYers like myself? It's really not meant to be written that way. I'll agree there seems to be no ease of use across API documentations. However, there is a lot of cross over from older man style syntax conventions, to the modern API/namespace conventi...
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Best practice: AsyncTask during orientation change

...roblem of retaining an AsyncTask across a rotation change nicely. You basically need to host your AsyncTask inside a Fragment, call setRetainInstance(true) on the Fragment, and report the AsyncTask's progress/results back to it's Activity through the retained Fragment. ...
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Cache an HTTP 'Get' service response in AngularJS?

...url, { cache: true}).success(...); or, if you prefer the config type of call: $http({ cache: true, url: url, method: 'GET'}).success(...); Cache Object You can also use a cache factory: var cache = $cacheFactory('myCache'); $http.get(url, { cache: cache }) You can implement it yourself usi...
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Convert from enum ordinal to enum type

I've the enum type ReportTypeEnum that get passed between methods in all my classes but I then need to pass this on the URL so I use the ordinal method to get the int value. After I get it in my other JSP page, I need to convert it to back to an ReportTypeEnum so that I can continue passing it. ...
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In Bash, how can I check if a string begins with some value?

... $a == "z*" ]]? In other words: do they work differently? And what specifically do you mean when you say "$a is equal to z*"? – Niels Bom Jun 16 '15 at 10:37 5 ...
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Differences in string compare methods in C#

...hem and when one should be used over the others? Should one be avoided at all costs? Are there more I haven't listed? 1...
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How to add a jar in External Libraries in android studio

...pile files('libs/library_name.jar') in build.gradle [You don't have to manually enter this in your build file]. Now you can start using the library in your project. share | improve this answer ...
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UltiSnips and YouCompleteMe

I have bundles ultisnips and youcompleteme installed on my macvim. The problem is that ultisnips doesn't work because tab is bound by ycm. I tried putting let g:UltiSnipsExpandTrigger = "<s-tab>" so that I can trigger the snippet completion with shift-tab, but it doesn't work for some unknow...
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How to get screen dimensions as pixels in Android

I created some custom elements, and I want to programmatically place them to the upper right corner ( n pixels from the top edge and m pixels from the right edge). Therefore I need to get the screen width and screen height and then set position: ...