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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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One sentence answer: <<no matter how many layers would behave just like a single perceptron (because linear functions added together just give you a linear function).>>. Nice!
– Autonomous
May 23 ...
Visual Studio, Find and replace, regex
I am trying to replace all the #include "whatever.h" with #include <whatever.h> using find and replace functionality in Visual Studio 2005. I used the regex \#include \"[a-z\.h]+\" to find the include statement. But I am wondering how frame the replace regex.
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C++: variable 'std::ifstream ifs' has initializer but incomplete type
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This seems to be answered - #include <fstream>.
The message means :-
incomplete type - the class has not been defined with a full class. The compiler has seen statements such as class ifstream; which allow it to understand that a class exists, but does n...
Fragment onResume() & onPause() is not called on backstack
I have multiple fragment inside an activity. On a button click I am starting a new fragment, adding it to backstack. I naturally expected the onPause() method of current Fragment and onResume() of new Fragment to be called. Well it is not happening.
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What are the mechanics of short string optimization in libc++?
...e better performance. I have not tested that design choice.
_LIBCPP_ABI_ALTERNATE_STRING_LAYOUT
There is a configuration flag called _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT which rearranges the data members such that the "long layout" changes from:
struct __long
{
size_type __cap_;
size_type...
When should I use Struct vs. OpenStruct?
...ere is a pretty common pattern to use it as a "normal class": class Point < Struct.new(:x, :y); methods here; end
– tokland
Dec 22 '11 at 11:39
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
...ember that all mapping *ToOne (@ManyToOne and @OneToOne) are EAGER by default.
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Maximum single-sell profit
...es. This then gives us an algorithm with the following recurrence:
T(1) <= O(1)
T(n) <= 2T(n / 2) + O(n)
Using the Master Theorem to solve the recurrence, we find that this runs in O(n lg n) time and will use O(lg n) space for the recursive calls. We've just beaten the naive O(n2) solutio...
Difference between numeric, float and decimal in SQL Server
...t or real columns in WHERE clause search conditions, especially the = and <> operators (Technet)
so generally because the precision provided by decimal is [10E38 ~ 38 digits] if your number can fit in it, and smaller storage space (and maybe speed) of Float is not important and dealing with ...
Using the Swift if let with logical AND operator &&
...ptional unwrapping with if let — The if let construct
can now unwrap multiple optionals at once, as well as include
intervening boolean conditions. This lets you express conditional
control flow without unnecessary nesting.
With the statement above, the syntax would then be:
if let tabBar...