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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
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__date__ = "2011-11-17 Nov denis"
# X sparse, any cdist metric: real app ?
# centres get dense rapidly, metrics in high dim hit distance whiteout
# vs unsupervised / semi-supervised svm
#...............................................................................
def kmeans( X, cen...
When should I use a List vs a LinkedList
...ects in the loops themselves. (And when I double-check myself with a test app, sure enough, twice as many in the LinkedList.)
– ruffin
Apr 27 '13 at 16:54
7
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Is mathematics necessary for programming? [closed]
I happened to debate with a friend during college days whether advanced mathematics is necessary for any veteran programmer. He used to argue fiercely against that. He said that programmers need only basic mathematical knowledge from high school or fresh year college math, no more no less, and that ...
What do the terms “CPU bound” and “I/O bound” mean?
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so the memory bus quickly becomes the bottleneck, not the CPU.
This happens because adding two numbers takes a single CPU cycle, memory reads take about 100 CPU cycles in 2016 hardware.
So the CPU work done per byte of input data is too small, and we call this an IO-bound process.
The only way...
What is the difference between JDK dynamic proxy and CGLib?
...xtra stack frames. This becomes increasingly relevant the more complex the app gets (because the larger the stack, the more memory threads consume).
– Ray
Feb 8 '13 at 19:12
1
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Line-breaking widget layout for Android
...predicate;
import se.fnord.android.layout.PredicateLayout;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.TextView;
public class Predicate extends Activity {
/** Called when the activity is first created. */
@Override
public ...
Why not use exceptions as regular flow of control?
...ionError or StandardError or something that does correspond to bad things happening. If you have trouble with that, then how do you do logging -- don't you log by level and class, precisely so you can filter on them? Do you think that's a bad idea, too?
– Ken
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Difference between Grunt, NPM and Bower ( package.json vs bower.json )
I'm new to using npm and bower, building my first app in emberjs :).
I do have a bit of experience with rails, so I'm familiar with the idea of files for listing dependencies (such as bundler Gemfile)
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Is it possible to change icons in Visual Studio 2012?
...ieve this and the switch to WPF makes it even harder to hack around.
This app simply extracts the image resources from the unmanaged DLLs in Visual Studio 2010 and injects them into the DLLs for Visual Studio 2012. The managed resources are a lot more complex and haven't been added in yet, though I...
Python __str__ versus __unicode__
...s override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it necessary/good practice to implement both?
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