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213 Commits

Author SHA1 Message Date
Yuji Uchiyama
d953ef6bfc Fix the implementation of conjugate gradient method (#184) 
* Add unit tests for optimizers

* Fix ConjugateGradient

* Fix coding style

* Fix namespace
 2018-01-12 10:53:43 +01:00
David Monllaó
e83f7b95d5 Fix activation functions support (#163) 
- Backpropagation using the neuron activation functions derivative
- instead of hardcoded sigmoid derivative
- Added missing activation functions derivatives
- Sigmoid forced for the output layer
- Updated ThresholdedReLU default threshold to 0 (acts as a ReLU)
- Unit tests for derivatives
- Unit tests for classifiers using different activation functions
- Added missing docs
 2018-01-09 11:09:59 +01:00
Yuji Uchiyama
9938cf2911 Rewrite DBSCAN (#185) 
* Add testcases to DBSCAN

* Fix DBSCAN implementation

* Refactoring DBSCAN implementation

* Fix coding style
 2018-01-09 10:53:02 +01:00
Tomáš Votruba
6660645ecd Update dev dependencies (#187) 
* composer: update dev dependencies

* phpstan fixes

* phpstan fixes

* phpstan fixes

* phpstan fixes

* drop probably forgotten humbug configs

* apply cs

* fix cs bug

* compsoer: add coding standard and phsptan dev friendly scripts

* ecs: add skipped errors

* cs: fix PHP 7.1

* fix cs

* ecs: exclude strict fixer that break code

* ecs: cleanup commented sets

* travis: use composer scripts for testing to prevent duplicated setup
 2018-01-06 21:25:47 +01:00
Tomáš Votruba
a348111e97 Add PHPStan and level to max (#168) 
* tests: update to PHPUnit 6.0 with rector

* fix namespaces on tests

* composer + tests: use standard test namespace naming

* update travis

* resolve conflict

* phpstan lvl 2

* phpstan lvl 3

* phpstan lvl 4

* phpstan lvl 5

* phpstan lvl 6

* phpstan lvl 7

* level max

* resolve conflict

* [cs] clean empty docs

* composer: bump to PHPUnit 6.4

* cleanup

* composer + travis: add phpstan

* phpstan lvl 1

* composer: update dev deps

* phpstan fixes

* update Contributing with new tools

* docs: link fixes, PHP version update

* composer: drop php-cs-fixer, cs already handled by ecs

* ecs: add old set rules

* [cs] apply rest of rules
 2018-01-06 13:09:33 +01:00
David Monllaó
c4ad117d28 Ability to update learningRate in MLP (#160) 
* Allow people to update the learning rate

* Test for learning rate setter
 2017-12-05 21:09:06 +01:00
Yuji Uchiyama
c4f58f7f6f Fix logistic regression implementation (#169) 
* Fix target value of LogisticRegression

* Fix probability calculation in LogisticRegression

* Change the default cost function to log-likelihood

* Remove redundant round function

* Fix for coding standard
 2017-12-05 12:03:55 +01:00
Tomáš Votruba
946fbbc521 Tests: use PHPUnit (6.4) exception methods (#165) 
* tests: update to PHPUnit 6.0 with rector

* [cs] clean empty docs

* composer: bump to PHPUnit 6.4

* tests: use class references over strings

* cleanup
 2017-11-28 08:00:13 +01:00
Tomáš Votruba
726cf4cddf Added EasyCodingStandard + lots of code fixes (#156) 
* travis: move coveralls here, decouple from package

* composer: use PSR4

* phpunit: simpler config

* travis: add ecs run

* composer: add ecs dev

* use standard vendor/bin directory for dependency bins, confuses with local bins and require gitignore handling

* ecs: add PSR2

* [cs] PSR2 spacing fixes

* [cs] PSR2 class name fix

* [cs] PHP7 fixes - return semicolon spaces, old rand functions, typehints

* [cs] fix less strict typehints

* fix typehints to make tests pass

* ecs: ignore typehint-less elements

* [cs] standardize arrays

* [cs] standardize docblock, remove unused comments

* [cs] use self where possible

* [cs] sort class elements, from public to private

* [cs] do not use yoda (found less yoda-cases, than non-yoda)

* space

* [cs] do not assign in condition

* [cs] use namespace imports if possible

* [cs] use ::class over strings

* [cs] fix defaults for arrays properties, properties and constants single spacing

* cleanup ecs comments

* [cs] use item per line in multi-items array

* missing line

* misc

* rebase
 2017-11-22 22:16:10 +01:00
David Monllaó
b1d40bfa30 Change from theta to learning rate var name in NN (#159) 2017-11-20 23:39:50 +01:00
Qingshan Luo
ff80af2044 code style Update Phpml\Math\Distance\Manhattan::distance() method. (#154) 
I think this will be better.
 2017-11-16 21:45:35 +01:00
Tomáš Votruba
653c7c772d Upgrade to PHP 7.1 (#150) 
* upgrade to PHP 7.1

* bump travis and composer to PHP 7.1

* fix tests
 2017-11-14 21:21:23 +01:00
Tomáš Votruba
d85bfed468 [cs] remove more unused comments (#146) 
* [cs] remove more unused comments

* [cs] remove unused array phpdocs

* [cs] remove empty lines in docs

* [cs] space-proof useless docs

* [cs] remove empty @param lines

* [cs] remove references arrays
 2017-11-13 11:42:40 +01:00
Tomáš Votruba
f4650c696c [coding standard] fix imports order and drop unused docs typehints (#145) 
* fix imports order

* drop unused docs typehints, make use of return types where possible
 2017-11-06 08:56:37 +01:00
Marcin Michalski
11d05ce89d Comparison - replace eval (#130) 
* Replace eval with strategy

* Use Factory Pattern, add tests

* Add missing dockblocks

* Replace strategy with simple object
 2017-10-24 18:59:12 +02:00
Maxim Kasatkin
b48b82bd34 DBSCAN fix for associative keys and array_merge performance optimization (#139) 2017-10-18 10:59:37 +02:00
Marcin Michalski
61d2b7d115 Ensure user-provided SupportVectorMachine paths are valid (#126) 2017-09-02 22:44:19 +02:00
Marcin Michalski
ba2b8c8a9c Use C-style casts (#124) 2017-09-02 21:41:06 +02:00
Marcin Michalski
03751f51ed Speed up DataTransformer (#122) 2017-09-02 21:38:02 +02:00
Marcin Michalski
b1be0574d8 Add PReLU activation function (#128) 
* Implement RELU activation functions

* Add PReLUTest
 2017-09-02 21:31:14 +02:00
Marcin Michalski
0e59cfb174 Add ThresholdedReLU activation function (#129) 2017-09-02 21:30:35 +02:00
Marcin Michalski
3e2708de17 Fix #120 (#121) 
* Fix #120

* Add DecisionTreeLeafTest
 2017-08-28 13:00:24 +02:00
Yuji Uchiyama
136a92c82b Support CSV with long lines (#119) 2017-08-21 08:08:54 +02:00
Marcin Michalski
3ac658c397 php-cs-fixer - more rules (#118) 
* Add new cs-fixer rules and run them

* Do not align double arrows/equals
 2017-08-17 08:50:37 +02:00
Ante Lucic
47cdff0481 fix invalid typehint for subs method (#110) 2017-07-26 08:36:34 +02:00
Ante Lucic
65b8a13612 Change Optimizer::runOptimization visibility from protected to public (#109) 2017-07-26 08:26:22 +02:00
Ante Lucic
07041ec608 Run newest php-cs-fixer (#108) 2017-07-26 08:24:47 +02:00
Ante Lucic
08d974bb4c Add missing @throws and @param docblocks (#107) 2017-07-26 08:22:12 +02:00
Maxime COLIN
2d3b44f1a0 Fix samples transformation in Pipeline training (#94) 2017-05-24 09:06:54 +02:00
David Monllaó
de50490154 Neural networks partial training and persistency (#91) 
* Neural networks partial training and persistency

* cs fixes

* Add partialTrain to nn docs

* Test for invalid partial training classes provided
 2017-05-23 09:03:05 +02:00
Maxime COLIN
3dff40ea1d Add french stopwords (#92) 
* Add french stopwords

* Add french stopwords test
 2017-05-22 23:18:27 +02:00
David Monllaó
4af8449b1c Neural networks improvements (#89) 
* MultilayerPerceptron interface changes

- Signature closer to other algorithms
- New predict method
- Remove desired error
- Move maxIterations to constructor

* MLP tests for multiple hidden layers and multi-class

* Update all MLP-related tests

* coding style fixes

* Backpropagation included in multilayer-perceptron
 2017-05-18 00:07:14 +02:00
Marcin Michalski
7ab80b6e56 Code Style (#86) 
* Code Style

* Code Review fixes
 2017-05-17 09:03:25 +02:00
Humberto Castelo Branco
43f15d2f7e New methods: setBinPath, setVarPath in SupportVectorMachine (#73) 
* new methods: setBinPath, setVarPath

* fix whitespaces and breaklines
 2017-05-13 12:58:06 +02:00
Mustafa Karabulut
5b373fa7c2 Linear Discrimant Analysis (LDA) (#82) 
* Linear Discrimant Analysis (LDA)

* LDA test file

* Matrix inverse via LUDecomposition

* LUDecomposition inverse() and det() applied

* Readme update for LDA
 2017-04-25 08:58:02 +02:00
David Monllaó
12b8b118dd Fix division by 0 error during normalization (#83) 
* Fix division by 0 error during normalization

std is 0 when a feature has the same value in samples.

* Expand std normalization test
 2017-04-24 11:47:30 +02:00
Mustafa Karabulut
a87859dd97 Linear algebra operations, Dimensionality reduction and some other minor changes (#81) 
* Lineer Algebra operations

* Covariance

* PCA and KernelPCA

* Tests for PCA, Eigenvalues and Covariance

* KernelPCA update

* KernelPCA and its test

* KernelPCA and its test

* MatrixTest, KernelPCA and PCA tests

* Readme update

* Readme update
 2017-04-23 09:03:30 +02:00
Arkadiusz Kondas
6296e44db0 cs fixer 2017-04-19 22:28:07 +02:00
David Monllaó
e1854d44a2 Partial training base (#78) 
* Cost values for multiclass OneVsRest uses

* Partial training interface

* Reduce linear classifiers memory usage

* Testing partial training and isolated training

* Partial trainer naming switched to incremental estimator

Other changes according to review's feedback.

* Clean optimization data once optimize is finished

* Abstract resetBinary
 2017-04-19 22:26:31 +02:00
Humberto Castelo Branco
b27f08f420 Add delimiter option for CsvDataset (#66) 
Useful option when the CSV file uses another delimiter character other than the comma, for example, as the semicolon or tab character.
 2017-03-29 12:58:12 +02:00
Mustafa Karabulut
49234429f0 LogisticRegression classifier & Optimization methods (#63) 
* LogisticRegression classifier & Optimization methods

* Minor fixes to Logistic Regression & Optimizers PR

* Addition for getCostValues() method
 2017-03-27 23:46:53 +02:00
Kyle Warren
c44f3b2730 Additional training for SVR (#59) 
* additional training SVR

* additional training SVR, missed old labels reference

* SVM labels parameter now targets

* SVM member labels now targets

* SVM init targets empty array
 2017-03-17 11:44:45 +01:00
Arkadiusz Kondas
39747efdc1 Update dependecies and coding style fixes 2017-03-05 16:45:48 +01:00
Arkadiusz Kondas
c6fbb83573 Add typehints to DecisionTree 2017-03-05 16:25:01 +01:00
Mustafa Karabulut
01bb82a2a7 One-v-Rest Classification technique applied to linear classifiers (#54) 
* One-v-Rest Classification technique applied to linear classifiers

* Fix for Apriori

* Fixes for One-v-Rest

* One-v-Rest test cases
 2017-03-05 09:43:19 +01:00
Arkadiusz Kondas
63c63dfba2 Add no_unused_imports rule to cs-fixer 2017-03-01 10:16:15 +01:00
Mustafa Karabulut
c028a73985 AdaBoost improvements (#53) 
* AdaBoost improvements

* AdaBoost improvements & test case resolved

* Some coding style fixes
 2017-02-28 21:45:18 +01:00
Arkadiusz Kondas
e8c6005aec Update changelog and cs fixes 2017-02-23 20:59:30 +01:00
Mustafa Karabulut
4daa0a222a AdaBoost algorithm along with some improvements (#51) 2017-02-21 10:38:18 +01:00
Mustafa Karabulut
cf222bcce4 Linear classifiers: Perceptron, Adaline, DecisionStump (#50) 
* Linear classifiers

* Code formatting to PSR-2

* Added basic test cases for linear classifiers
 2017-02-16 23:23:55 +01:00