大约有 1,489 项符合查询结果（耗时：0.0245秒） [XML]
Benchmarking (python vs. c++ using BLAS) and (numpy)
...inux, just type make): http://dl.dropbox.com/u/5453551/blas_call_benchmark.zip
http://dl.dropbox.com/u/5453551/blas_call_benchmark.png
I do not see essentially any difference between the different methods for large matrices, between Numpy, Ctypes and Fortran. (Fortran instead of C++ --- and if thi...
Algorithm to compare two images
...hard though), so it may be a lot of work for you with limited/no results.
Zipping
Ow's answer in this question is excellent, I remember reading about these sort of techniques studying AI. It is quite effective at comparing corpus lexicons.
One interesting optimisation when comparing corpuses is t...
What's the difference between equal?, eql?, ===, and ==?
...uals(o)
ops = [:==, :===, :eql?, :equal?]
Hash[ops.map(&:to_s).zip(ops.map {|s| send(s, o) })]
end
end
"a".all_equals "a" # => {"=="=>true, "==="=>true, "eql?"=>true, "equal?"=>false}
== — generic "equality"
At the Object level, == returns true only if obj and othe...
Why do we need RESTful Web Services?
...ring firstName, lastName, streetAddress1, streetAddress2, city, state; int zip;}. You seem to be suggesting either that we register "Employee" with IANA, or that we just consider "Employee" to be an associative array of name/value pairs.
– John Saunders
Sep 9 '...
Most simple but complete CMake example
...ocal/share/ and something equivalent on windows. I wanted to have a simple zip/tar.gz that you can extract anywhere and run. Therefore resources are loaded relative to the executable.
the basic rule to understand cmake commands is the following syntax:
<function-name>(<arg1> [<arg2&g...
How can I improve my paw detection?
...size of a rectangle for each paw and display it
for slice, rect in zip(paw_slices, rects):
dy, dx = slice
rect.set_xy((dx.start, dy.start))
rect.set_width(dx.stop - dx.start + 1)
rect.set_height(dy.stop - dy.start + 1)
rect.set_visi...
Why is the order in dictionaries and sets arbitrary?
...ctionary in between. That means that d.items() is essentially identical to zip(d.keys(), d.values()). If any items are added to the dictionary however, all bets are off. The order could change completely (if the hash table needed to be resized), though most of the time you'd just find the new item t...
Are static class variables possible in Python?
...tance(static,str) for static in mcls.statics[cls]):
typ = dict(zip((not isinstance(static,str) for static in mcls.statics[cls]), map(type,mcls.statics[cls])))[True].__name__
raise TypeError('__statics__ items must be strings, not {0}'.format(typ))
# Move any previousl...
Inline labels in Matplotlib
...ls = np.linspace(xmin,xmax,len(labLines)+2)[1:-1]
for line,x,label in zip(labLines,xvals,labels):
labelLine(line,x,label,align,**kwargs)
Test code to generate the pretty picture above:
from matplotlib import pyplot as plt
from scipy.stats import loglaplace,chi2
from labellines impor...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
..._counts = np.array([5,9,8,4,7])
tail_counts = 10-head_counts
experiments = zip(head_counts,tail_counts)
# initialise the pA(heads) and pB(heads)
pA_heads = np.zeros(100); pA_heads[0] = 0.60
pB_heads = np.zeros(100); pB_heads[0] = 0.50
# E-M begins!
delta = 0.001
j = 0 # iteration counter
improve...