Commit Graph

989 Commits

Author SHA1 Message Date
Olivier Grisel aa69d857a8 FIX #401: update tutorial doctests to reflect recent changes and add them to 2011-10-22 17:39:19 +02:00
Alexandre Gramfort cbab8624df DOC: prettify plot_permutation_test_for_classification.py 2011-10-21 21:03:22 -04:00
Lars Buitinck 4a3975f3d8 BUG NMF topic spotting example would output n_top_words-1 terms 2011-10-18 15:48:53 +02:00
Olivier Grisel b9087e5c8a ENH: document clustering example simplification 2011-10-09 11:20:56 +02:00
Gael varoquaux 8dfe631489 Merge branch 'master' into tree
Conflicts:
	sklearn/setup.py
2011-10-07 00:30:19 +02:00
robertlayton bc9ad28741 Merge pull request #364 from robertlayton/silhouette
Silhouette Coefficient added to metrics
2011-10-06 14:10:01 -07:00
Olivier Grisel a5b8a84c2f merge master 2011-10-05 10:27:18 +02:00
Olivier Grisel be48c63fbe Merge pull request #377 from larsmans/sparse-nmf
Allow sparse input to NMF
2011-10-04 06:47:37 -07:00
Brian Holt c9d142c032 Merge branch 'master' of github.com:scikit-learn/scikit-learn into enh/tree 2011-10-04 13:51:58 +01:00
VirgileFritsch 9a54ba969d Integrate Fabian's comments on Minimum Covariance Determinant. 2011-10-04 11:19:37 +02:00
VirgileFritsch cb9e8e6cf0 Implements a robust covariance estimator: Rousseeuw's MCD.
Minimum Covariance Determinant (MCD) is a robust estimator of
covariance introduced by Rousseeuw [1]. The main idea behind the MCD
is to find a fixed proportion of observations whose scatter matrix has
the minimum determinant.
The MCD estimator is computed with the FastMCD algorithm [2].

[1] P. J. Rousseeuw. Least median of squares regression. J. Am Stat
Ass, 79:871, 1984.
[2] P. J. Rousseeuw and K. Van Driessen. A fast algorithm for the
minimum covariance determinant estimator. Technometrics, 41(3):212,
1999.
2011-10-04 11:18:55 +02:00
Robert Layton a1f273d1e3 pep8 and pyflakes 2011-10-04 13:22:52 +11:00
Robert Layton 42714e5f9a sampling added to silhouette_score, examples updated to match 2011-10-04 13:13:41 +11:00
Robert Layton 730bdc71b2 Sampling to improve SC speed 2011-10-04 12:50:11 +11:00
Robert Layton 7ff7e1f839 Silhouette calcualted for all forms of k-means in example 2011-10-04 11:29:23 +11:00
Robert Layton 90366b2996 Using pairwise_distances in the Silhouette Coefficient. Updates to docs, code, tests and examples 2011-10-04 11:23:14 +11:00
Robert Layton 90c8ee7d80 Silhouette added to AP example 2011-10-04 10:50:55 +11:00
Robert Layton 91f7abc4d7 Example updated, which required fixing a backwards compatability bug (adjusted_rand_score not imported in metrics/cluster/__init__.py) 2011-10-04 10:44:15 +11:00
Lars Buitinck 1e3f1dcd2b Allow sparse input to NMF 2011-10-03 17:17:33 +02:00
Olivier Grisel 85c680cb3b thanks to @larsmans, TFIDF is now always positive :) 2011-10-03 14:31:18 +02:00
Mathieu Blondel 0e516d0df1 Export data option in SVG gui. 2011-09-30 18:28:19 +09:00
Lars Buitinck cfe6b64dd1 BUG adapt text feature grid search example to new 20news loader 2011-09-28 13:57:59 +02:00
Olivier Grisel e6eff45d96 ENH: no need for L2 norm on input in doc clustering
The new TD-IDF implementation already does that by default.
2011-09-27 09:17:44 +02:00
Gael varoquaux 716b1e7105 DOC: improve spectral clustering docs 2011-09-25 21:20:59 +02:00
Gael varoquaux 185f7ab27f DOC: doc and example cosmetics for trees 2011-09-25 19:59:22 +02:00
Gael varoquaux c9b0913c0c Cosmit, PEP8 2011-09-25 19:30:23 +02:00
Brian Holt 6182960ac9 Merge branch 'master' of github.com:scikit-learn/scikit-learn into enh/tree 2011-09-21 20:26:40 +01:00
Olivier Grisel 241ebbaed8 Merge branch 'vene-sc' 2011-09-19 14:41:08 +02:00
Gael varoquaux 10c146f164 Cosmit: make in-place modifications explicit 2011-09-19 14:29:02 +02:00
vene d56281e00b explicit seeding of olivetti faces loader 2011-09-19 14:19:24 +03:00
vene 36b81e53f5 Stabilized and improved face decomposition example 2011-09-19 13:51:23 +03:00
vene 77a0ec3878 s/img_denoising/image_denoising 2011-09-19 12:43:51 +03:00
vene 2121bfcabc tweaked faces decomposition and added to dict learning docs 2011-09-17 20:20:58 +03:00
vene 84b8c67336 layout 2011-09-17 19:36:50 +03:00
vene 167f34080e renamed MiniBatchDictionaryLearning 2011-09-17 18:55:16 +03:00
vene 531b187625 Merge branch 'dictionary_learning' of git://github.com/GaelVaroquaux/scikit-learn into sc
Conflicts:
	examples/decomposition/plot_img_denoising.py
2011-09-17 17:53:11 +03:00
Gael varoquaux f0b0cfe98e DOC: larger lena size in denoising example
Large size work better because they give a better training set to the
dictionary_learning algorithm. This is a tradeoff between computation
time and quality of example
2011-09-17 06:02:43 +02:00
Olivier Grisel 6ec4e1b44c cosmit 2011-09-16 12:15:57 +02:00
Olivier Grisel 9a0db43470 Merge remote-tracking branch 'vene/sc' into vene-sc 2011-09-16 11:34:26 +02:00
Olivier Grisel c74347f5ca trailing spaces 2011-09-16 11:29:26 +02:00
Fabian Pedregosa 6e07284f3f FIX example logisitic regression. 2011-09-14 12:53:35 +02:00
Olivier Grisel 54af74d18c Merge remote-tracking branch 'jakevdp/neighbors-refactor' 2011-09-13 23:41:23 +02:00
Lars Buitinck fa50e6885a rename ari_score adjusted_rand_score 2011-09-13 16:50:30 +02:00
Brian Holt c315c5a6ca improved documentation 2011-09-13 12:52:41 +01:00
vene dd30699639 Included dictionary learning online in decomp example 2011-09-12 19:44:29 +03:00
Olivier Grisel ed434c3f1f typo 2011-09-12 09:48:55 +02:00
Olivier Grisel 5da44bde6c make example script filename more explicit 2011-09-12 09:47:59 +02:00
Jake Vanderplas 6c97f3832d add weighting to classification and regression 2011-09-11 16:17:57 -07:00
Olivier Grisel ddbf08c2fc DOC: add example to illustrate the concept of adjustment for chance 2011-09-12 00:05:09 +02:00
Jake Vanderplas bc02942bc3 Nearest Neighbors examples & documentation 2011-09-11 10:45:34 -07:00