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Can someone give an example of cosine similarity, in a very simple, graphical way?

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Ruby: How to get the first character of a string

...h more readable. For instance, this: class String def initial self[0,1] end end will allow you to use the initial method on any string. So if you have the following variables: last_name = "Smith" first_name = "John" Then you can get the initials very cleanly and readably: puts first...
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Using jQuery to see if a div has a child with a certain class

... 201 You can use the find function: if($('#popup').find('p.filled-text').length !== 0) // Do Stu...
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convert '1' to '0001' in JavaScript [duplicate]

How can I convert convert '1' to '0001' in JavaScript without using any 3rd party libraries. I have done this in php using spritf: $time = sprintf('%04.0f',$time_arr[$i]); ...
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How do I format a long integer as a string without separator in Java?

... | edited Jan 22 '16 at 20:19 RAnders00 4,20144 gold badges2929 silver badges5757 bronze badges answere...
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How to implement has_many :through relationships with Mongoid and mongodb?

... | edited Aug 13 '11 at 20:31 answered Aug 13 '11 at 20:06 ...
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Python list iterator behavior and next(iterator)

...tion to i being printed each iteration: >>> a = iter(list(range(10))) >>> for i in a: ... print(i) ... next(a) ... 0 1 2 3 4 5 6 7 8 9 So 0 is the output of print(i), 1 the return value from next(), echoed by the interactive interpreter, etc. There are just 5 iterations, ...
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How do I use itertools.groupby()?

... ("vehicle", "school bus")] for key, group in groupby(things, lambda x: x[0]): for thing in group: print("A %s is a %s." % (thing[1], key)) print("") This will give you the output: A bear is a animal. A duck is a animal. A cactus is a plant. A speed boat is a vehicle. A schoo...
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Should private helper methods be static if they can be static

... blong 2,65566 gold badges3232 silver badges9090 bronze badges answered Feb 11 '09 at 21:33 Esko LuontolaEsko Luontola 70.3...
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.NET Global exception handler in console application

...| edited May 29 '18 at 14:05 answered Jun 28 '10 at 14:32 H...