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270 Commits

Author SHA1 Message Date
Alexander Alekhin
df89e76fb1 Merge pull request #5922 from DarwinsBuddy:fix_no_py_load_svm_bug 2016-01-14 14:44:27 +00:00
Alexander Alekhin
cb0b2bd1af Merge pull request #5965 from amroamroamro:fix_concentric_spheres 2016-01-14 12:09:25 +00:00
Amro
47cdb041f2 fix assignment of class labels 
by using the indices from the sorted distance vector of pairs.
 2016-01-14 02:56:34 +02:00
Amro
542f2b2e3c clean up code for train and predict methods of LR 2016-01-13 20:47:07 +02:00
Amro
e67178c696 fix LR predict with raw output in 2-class case 
In case of binary class, pred_m is initialized as zero vector and later
returned when raw outputs are requested, but it is never filled.
 2016-01-13 19:48:21 +02:00
Christoph Spörk
3f172731b2 added wrapped load function for python as suggested by gat3way 2016-01-11 10:59:15 +01:00
Christoph Spörk
6c8bc6a25b fixed ABI incompatibilities as proposed by alalek 
related to issue 4969
fixes issue 5891
fixes issue 5922
 2016-01-07 08:00:01 +01:00
Christoph Spörk
a7aa198b4c fixing issue #4969 of Itseez/opencv. 
Someone forgot to wrap the load function for SVMs in the
corresponding ml python module. Fixed that.
 2016-01-04 15:47:26 +01:00
berak
5afd0e211e ml: fix NormalBayesClassifier bulk prediction(#5911) 2016-01-04 11:47:08 +01:00
Philip
1ba2286c6d fix uninitialized matrix in EM::predict fixes #5443 
fixes #5443
 2015-12-23 11:19:48 +01:00
Dikay900
4f3b58d1e7 fix reshape call not being an inplace method 
fixes #5853 #4740
 2015-12-21 21:10:35 +01:00
Vadim Pisarevsky
e0395a79ec Merge pull request #5616 from afriesen:lr_predict 2015-12-11 12:22:56 +00:00
Vadim Pisarevsky
7a7b0bcfcb fixed the upper boundary when calling checkRange (thanks to alalek) 2015-12-10 20:17:17 +03:00
Deanna Hood
0d706f6796 Return uncompressed support vectors for getSupportVectors on linear SVM (Bug #4096) 2015-12-10 18:31:02 +03:00
Vadim Pisarevsky
544990e377 couple of small fixes in rtrees variable importance calculation 2015-12-10 18:13:54 +03:00
Vadim Pisarevsky
fda17273de applying patch by rxtsolar: https://github.com/Itseez/opencv/pull/5422 for the master branch (even though it's actually not that important here) 2015-12-10 18:10:27 +03:00
niederb
d8e3971e7f Fixed variable importance in rtrees 2015-12-10 18:09:15 +03:00
Tian Zhi
f0434d60b0 fixed the type inconsistent with document. 
Document say probs will have CV_64F type. But in effect, it has CV_32F type.
http://docs.opencv.org/3.0.0/d1/dfb/classcv_1_1ml_1_1EM.html#a2ea7da92a75bc7a7d665c241f547b9b9
 2015-11-12 02:54:18 +08:00
Abe Friesen
9c6ff4d955 - LogisticRegressionImpl::predict() was changed to return the predicted value and to only write to the OutputArray results if specified (no longer segfaults). 
- Refactored batch and mini_batch training to use a common gradient computation function (removed duplicate code).
- Altered the cost computation so that NAN is not computed unnecessarily.
- Greatly simplified (and sped up) the code that appends a column of 1s to the data.
- Minor code cleanup.

Removed unused variables.

Added cast to float to remove warning
 2015-11-02 17:49:06 -08:00
Alexander Alekhin
dfec99691b Merge pull request #5370 from berak:fix_svm_autoTrain 2015-10-26 10:47:29 +00:00
Alexander Alekhin
1648e9292c Merge pull request #5431 from MiguelAlgaba:em_one_cluster 2015-10-19 15:27:35 +00:00
Amro
13a0a37e63 fix randMVNormal in ML (#5469) 
Fix the failed assertion by replacing the GEMM call.

Also random numbers are generated from normal distribution ~N(0,1),
instead of uniform distribution ~U(0,1).
 2015-10-11 01:54:11 +03:00
Miguel Algaba
b71a27b96c Assert fix: allow one cluster as valid parameter 2015-10-01 16:45:59 +02:00
berak
74fc9acdd1 initialize temp_train_samples in SVM::autoTrain 
add smoke test
 2015-09-23 11:08:48 +02:00
Vadim Pisarevsky
c9ccf3b55d Merge pull request #5346 from art-programmer:art-programmer-patch-1 2015-09-21 12:06:46 +00:00
art-programmer
e0ef293645 Update em.cpp 
Fix a bug. When reading from a saved model, function decomposeCovs() will be called. And if covMatType is COV_MAT_DIAGONAL, covsEigenValues is computed using SVD and eigen values are sorted so that the order of eigen values is not preserved. This would lead to different result when calling function predict2. This issues is discussed here: http://stackoverflow.com/questions/23485982/got-different-empredict-results-after-emread-saved-model-in-opencv.
 2015-09-14 19:35:53 -05:00
Ilya Lavrenov
ee2008abe8 fixed "Conditional jump or move depends on uninitialised value(s)" in GBD 2015-09-13 12:36:57 +02:00
Ilya Lavrenov
1d77d697ef fixed memory leak in GBTrees 2015-09-13 12:15:30 +02:00
Lorena García
c545857ea6 Indent fix 2015-08-04 16:50:55 +02:00
Lorena García
4cd78bc7ad Whitespace error 2015-08-04 16:45:39 +02:00
Lorena García
fe62243805 Whitespace error 2015-08-04 16:37:41 +02:00
Lorena García
2cb47b4191 Update data.cpp 
Update to allow loading data from a .csv file that only contains training samples values and not the associated responses. To allow this behavior, function must be called with parameters ResponsesStartIdx <= -2 and ResponsesEndIdx = 0
 2015-08-04 15:58:24 +02:00
Jie Yang
2ba0d31785 Fix SVM::trainAuto (Bug #4464) 
Fix SVM::trainAuto (Bug #4464)
 2015-07-06 01:20:26 +09:30
berak
b29e473c21 fix plausability check, #issue 4429 2015-07-01 15:32:37 +02:00
Maksim Shabunin
b95769333c Fixed ANN_MLP dw initialization when moment is not 0 2015-05-13 16:56:34 +03:00
Vadim Pisarevsky
a69b435c92 Merge pull request #3909 from Nuzhny007:master 2015-04-21 14:02:59 +00:00
Maksim Shabunin
cb00c7036f Fix cache error during SVM train 2015-04-15 15:46:07 +03:00
Сергей Нужный
4a65f3cee2 Squashed commit of the following: 
commit 5c379aa1b8
Merge: e800800 3646967
Author: Сергей Нужный <snuzhny@stc-spb.ru>
Date:   Wed Apr 8 12:44:46 2015 +0300

    Merge branch 'master' of https://github.com/Nuzhny007/opencv

commit e800800bec
Author: Сергей Нужный <snuzhny@stc-spb.ru>
Date:   Wed Apr 8 12:43:38 2015 +0300

    Squashed commit of the following:

    commit 3646967deb
    Author: Сергей Нужный <snuzhny@stc-spb.ru>
    Date:   Tue Apr 7 15:48:30 2015 +0300

        Fix bug in SVM::trainAuto

    commit 0c24ccf538
    Author: Сергей Нужный <snuzhny@stc-spb.ru>
    Date:   Tue Apr 7 15:43:59 2015 +0300

        Revert "Fix bug in SVM::trainAuto"

        This reverts commit 225da0226e.

    commit 225da0226e
    Author: Сергей Нужный <snuzhny@stc-spb.ru>
    Date:   Tue Apr 7 15:09:47 2015 +0300

        Fix bug in SVM::trainAuto

commit 3646967deb
Author: Сергей Нужный <snuzhny@stc-spb.ru>
Date:   Tue Apr 7 15:48:30 2015 +0300

    Fix bug in SVM::trainAuto

commit 0c24ccf538
Author: Сергей Нужный <snuzhny@stc-spb.ru>
Date:   Tue Apr 7 15:43:59 2015 +0300

    Revert "Fix bug in SVM::trainAuto"

    This reverts commit 225da0226e.

commit 225da0226e
Author: Сергей Нужный <snuzhny@stc-spb.ru>
Date:   Tue Apr 7 15:09:47 2015 +0300

    Fix bug in SVM::trainAuto
 2015-04-08 12:51:57 +03:00
Vadim Pisarevsky
052593c760 1. Input/OutputArray optimizations; 
2. Algorithm::load/save added (moved from StatModel)
3. copyrights updated; added copyright/licensing info for ffmpeg
4. some warnings from Xcode 6.x are fixed
 2015-04-07 16:44:26 +03:00
Sancho McCann
6593422c05 Bugfix: #4030 SVM auto-training. 2015-04-01 20:44:51 +00:00
Evgeny Agafonchikov
91bd7df8c1 Fixing invalid opencv_test_ml calls 2015-03-20 17:49:03 +03:00
ippei ito
518fd59a10 fixed whitespace error 2015-03-12 01:09:15 +09:00
ippei ito
49b38fe793 Fixed compile error build with VisualStudio2013 on windows. 
REG_NONE defined in ml.hpp conflicts with defined in Winnt.h
 2015-03-12 00:32:17 +09:00
Maksim Shabunin
79e8f0680c Updated ml module interfaces and documentation 2015-02-17 11:46:14 +03:00
Maksim Shabunin
c85197da55 Fixed allocated vector size in ML ANN algorithm 
- updated return value of points_classifier sample
 2015-02-03 18:16:20 +03:00
Maksim Shabunin
38d37d2b00 Fixed uninitialized memory usage in ANN_MLP 2014-12-31 12:16:26 +03:00
Maksim Shabunin
d004ee58c5 Support loading old models in ML module 
- added test for loading legacy files
- added version to new written models
- fixed loading of several fields in some models
- added generation of new fields from old data
 2014-12-31 12:16:25 +03:00
Julien Nabet
2d5e3b57ea Fix cppcheck reports warnings: 
(performance) Possible inefficient checking for 'lmap' emptiness
(warning) Assignment of function parameter has no effect outside the function. Did you forget dereferencing it?
(style) Array index '<xxx>' is used before limits check
 2014-12-27 10:54:34 +01:00
bartaandras
21227ba092 Fixed calc_output_scale with NO_OUTPUT_SCALE flag set. 2014-11-04 11:35:45 +01:00
Vadim Pisarevsky
b37a641cc9 fixed bug in automatic SVM training 2014-10-18 20:53:39 +04:00