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Image Segmentation using Mean Shift explained

Could anyone please help me understand how Mean Shift segmentation actually works? 2 Answers ...
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?

I am transitioning from Java to C++ and have some questions about the long data type. In Java, to hold an integer greater than 2 32 , you would simply write long x; . However, in C++, it seems that long is both a data type and a modifier. ...
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Difference between >>> and >>

What is the difference between >>> and >> operators in Java? 7 Answers ...
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Dynamically select data frame columns using $ and a character value

I have a vector of different column names and I want to be able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic s...
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What is the difference between PS1 and PROMPT_COMMAND

...oc page: http://www.gnu.org/software/bash/manual/bashref.html PROMPT_COMMAND If set, the value is interpreted as a command to execute before the printing of each primary prompt ($PS1). I never used it, but I could have used this back when I only had sh. ...
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How to check BLAS/LAPACK linkage in NumPy and SciPy?

I am builing my numpy/scipy environment based on blas and lapack more or less based on this walk through. 5 Answers ...
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Given a number, find the next higher number which has the exact same set of digits as the original n

I just bombed an interview and made pretty much zero progress on my interview question. Can anyone let me know how to do this? I tried searching online but couldn't find anything: ...
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How is this fibonacci-function memoized?

...mechanism in Haskell is by-need: when a value is needed, it is calculated, and kept ready in case it is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access. Th...
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How do I return multiple values from a function? [closed]

...ing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotations. Example (From the docs): class Employee(NamedTuple): # inherit from typing.NamedTuple name: str id...
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”

My application is to be deployed on both tcServer and WebSphere 6.1. This application uses ehCache and so requires slf4j as a dependency. As a result I've added the slf4j-api.jar (1.6) jar to my war file bundle. ...