551b6c2f06
ENH honor Y_norm_squared when X=Y in euclidean_distances
...
Also a micro-optimization to row_norms.
2013-10-13 18:54:21 +02:00
24af95a211
ENH refactor squared-norms computation to extmath
...
k-means can now use the memory-efficient dense implementation from
metrics.pairwise, while pairwise can use the fast sparse implementation
from k-means.
2013-10-12 20:27:51 +02:00
edf747e6a2
DOC docstring for extmath.norm
2013-10-12 20:17:33 +02:00
c1df89edf2
... add the fix to import check
2013-10-08 23:01:48 +02:00
add591cbf7
FIX scipy API
2013-10-08 22:54:14 +02:00
ceffed1d6e
MAINT remove useless deprecation in sklearn.utils
...
This module is off-limits to users anyway.
2013-09-04 18:43:56 +02:00
fcce3032c0
fix visual indentation
2013-08-31 12:27:16 +05:30
fbd6d9c8f6
ENH: update version checking
2013-08-25 12:17:33 +02:00
f91fba2f01
ENH: restrict fast_dot to np < 1.8
2013-08-25 11:16:22 +02:00
1322da977c
ENH/FIX: address @ogrisel comments
2013-08-25 11:16:21 +02:00
f36cba5b05
FIX: superfluous check
2013-08-25 11:16:21 +02:00
b86f3d5208
ENH: add new Warning class, improve tests, update docs
2013-08-25 11:16:21 +02:00
dcd6292095
ENH: cover another cornercase + fix messages
2013-08-25 11:16:21 +02:00
dbc751fd50
ENH: add fast_dot shape check
2013-08-25 11:16:21 +02:00
69fc2970e7
FIX: remove spurious test
2013-08-25 11:16:21 +02:00
bc15f3019d
CLEANUP
2013-08-25 11:16:21 +02:00
5a3a432a79
ENH: return np.dot if ndim does not match
2013-08-25 11:16:21 +02:00
e98d1ccf42
FIX: workaround for missing BLAS
2013-08-25 11:16:21 +02:00
19e0401c12
employ DataConversionWarning
2013-08-25 11:16:20 +02:00
2240e44f31
ENH: add fast_dot function
2013-08-25 11:16:20 +02:00
74ec752e3c
ENH speed up logistic_sigmoid (using less code)
...
Timings, before:
>>> x = np.linspace(-1000, 1000, 10000)
>>> %timeit logistic_sigmoid(x)
1000 loops, best of 3: 570 us per loop
After:
>>> %timeit logistic_sigmoid(x)
1000 loops, best of 3: 286 us per loop
For comparison:
>>> %timeit np.tanh(x)
10000 loops, best of 3: 117 us per loop
>>> %timeit .5 * (1 + np.tanh(x/2.))
1000 loops, best of 3: 301 us per loop
TODO: optimize log_logistic_sigmoid.
2013-07-28 16:44:13 +02:00
395b231774
moved and renamed _make_nonnegative() and _safe_min()
2013-07-25 19:19:19 +02:00
ac1e1a9c87
squeezing logistic_sigmoid result only on 1D arrays
2013-07-24 17:27:23 +02:00
e488649af4
ENH Add fast and stable logistic sigmoid to utils and RBM
2013-07-24 17:27:22 +02:00
77695ee27a
COSMIT pep8
2013-07-11 11:50:23 +02:00
34815a35c8
COSMIT omit unused parameter/return value in svd_flip
2013-06-12 13:39:39 +02:00
dacfd8bd5d
DOC: Replaced all BSD style licenses with "BSD 3 clause"
...
Replaced all BSD style licenses with "BSD 3 clause"
Not checked yet!
Removed duplicate "3 clause, 3 clause"
Removed trailing period if exists
Fixed some missed licences, still about 50 to do, but those can be automated
Think I got the last of them.
Apparently me and sed have different ideas of regex.
Found a few more
2013-04-30 08:34:46 +02:00
541987802f
P3K range vs. xrange
2013-02-14 02:05:35 +01:00
4040d42830
Make randomized_svd flipped by default
2012-12-24 15:03:49 +01:00
0755f156f8
Add sign flip as flag in randomized_svd
2012-12-24 15:03:49 +01:00
cf5d34e776
Make sign flip in place
2012-12-24 15:02:24 +01:00
d5857bbb60
Sign flipping as suggested by @ogrisel, not in place
2012-12-24 15:02:24 +01:00
0df8fb20ba
Add failing test and no-op flip
2012-12-24 15:02:24 +01:00
754c2d9533
COSMIT pep8
2012-12-22 16:48:17 +01:00
52ba220aae
empty instead of zeros
2012-11-11 18:12:43 +01:00
0530c106c8
pep8
2012-11-10 12:59:46 +01:00
77b585f9d2
Merge branch 'master' into gbrt-interactions
2012-10-22 08:24:18 +02:00
a2cd5fa94c
Fix density utility when input is sparse.
2012-10-19 16:53:36 +09:00
35860aa42d
Merge branch 'master' into gbrt-interactions
...
Conflicts:
sklearn/ensemble/gradient_boosting.py
2012-10-19 09:21:10 +02:00
4bd2e9b5f8
add cartesian product
2012-10-14 19:58:50 +02:00
9bd0aadaa3
MISC renamed n_iterations to n_iter in all other places.
2012-10-10 19:10:29 +01:00
776b060098
@jakevdp's version of pinvh
...
speed up symmetric_pinv
2012-09-04 19:58:46 +01:00
bfac9f2597
Vectorize singular value inversion
2012-09-04 19:58:46 +01:00
4a5a1d6d84
Compute pseudoinverse using eigendecomposition
2012-09-04 19:58:46 +01:00
2516b6217f
Remove fast_svd.
...
This was deprecated in version 0.9.
2012-09-01 20:02:13 +02:00
eba29c2116
FIX copy/paste error
2012-05-04 23:16:31 +02:00
667ef37714
DOC move references from Notes to References section in docstrings
2012-03-04 15:16:51 +01:00
5c2a8696e3
COSMIT removed unused imports
2012-01-23 21:13:55 +01:00
0f6c525d7e
ENH: renamed fast_svd to randomized_svd + related improvements
2011-12-31 14:31:55 +01:00
73e65c2107
PEP257: docstring cosmits in utils.extmath
2011-12-30 22:52:35 +01:00
Lars Buitinck