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What is the difference between supervised learning and unsupervised learning? [closed]
In terms of artificial intelligence and machine learning, what is the difference between supervised and unsupervised learning?
Can you provide a basic, easy explanation with an example?
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Inserting a Python datetime.datetime object into MySQL
...", 4, now))
With regards to the format, I had success with the above command (which includes the milliseconds) and with:
now.strftime('%Y-%m-%d %H:%M:%S')
Hope this helps.
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When should I use the HashSet type?
I am exploring the HashSet<T> type, but I don't understand where it stands in collections.
11 Answers
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SSH configuration: override the default username [closed]
...ostName example.net
User buck
The second example will set a username and is hostname specific, while the first example sets a username only. And when you use the second one you don't need to use ssh example.net; ssh example will be enough.
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Convert bytes to a string
I'm using this code to get standard output from an external program:
19 Answers
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Best way to encode text data for XML in Java?
... you recommend such a library? (I find it surprising that this is not a standard part of Java edition 5...such a common task).
– Tim Cooper
Nov 16 '09 at 6:23
4
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Should I use an exception specifier in C++?
... x.x();
}
The copies might throw, the parameter passing might throw, and x() might throw some unknown exception.
Exception-specifications tend to prohibit extensibility.
virtual void open() throw( FileNotFound );
might evolve into
virtual void open() throw( FileNotFound, SocketNotReady, In...
How do you use vim's quickfix feature?
I'm a pretty new Vim user and I've found that its learning curve is quite steep (at least for me). I just installed this vim script for JavaScriptLint error checking, which shows errors in vim's quickfix window once I save a buffer.
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jQuery object equality
...ery objects can be considered equal is whether they have the same selector and context. This is easy enough to test: A.selector === B.selector && A.context === B.context. Often the context will always be the same, so we only have to consider the selector.
– Casebash
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How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...d in the Java Language Specification under "Floating-Point Types, Formats, and Values":
NaN is unordered, so the numerical
comparison operators <, <=, >, and >=
return false if either or both
operands are NaN. The
equality operator == returns false if
either operand is NaN,...