Description:

MLPACK is a scalable C++ machine learning library. Its aim is to make large-scale machine learning possible for novice users by means of a simple, consistent API, while simultaneously exploiting C++ language features to provide maximum performance and maximum flexibility for expert users.

The following methods are provided:

• Density Estimation Trees
• Euclidean Minimum Spanning Trees
• Fast Exact Max-Kernel Search (FastMKS)
• Gaussian Mixture Models (GMMs)
• Hidden Markov Models (HMMs)
• Kernel Principal Components Analysis (KPCA)
• K-Means Clustering
• Least-Angle Regression (LARS/LASSO)
• Local Coordinate Coding
• Locality-Sensitive Hashing (LSH)
• Naive Bayes Classifier
• Neighborhood Components Analysis (NCA)
• Nonnegative Matrix Factorization (NMF)
• Principal Components Analysis (PCA)
• RADICAL (ICA)
• Rank-Approximate Nearest Neighbor (RANN)
• Simple Least-Squares Linear Regression
• Sparse Coding
• Tree-based Neighbor Search (all-k-nearest-neighbors, all-k-furthest-neighbors), using either kd-trees or cover trees
• Tree-based Range Search

Command-line executables are provided for each of these, and the C++ classes which define the methods are highly flexible, extensible, and modular. More information (including documentation, tutorials, and bug reports) is available at http://www.mlpack.org/.

Changes to previous version:

Minor bugfix so that FastMKS gets built.

BibTeX Entry: Download

Corresponding Paper BibTeX Entry: Download

URL: Project Homepage

JMLR MLOSS PaperURL: JMLR-MLOSS Paper Homepage

Supported Operating Systems: Platform Independent

Data Formats: Plain Ascii, Ascii, Txt, Hdf, Bin, Csv, Xml

Tags: Gmm, Hmm, Machine Learning, Sparse, Dual Tree, Fast, Scalable, Tree

Archive: download here

Other available revisons

Version	Changelog	Date
1.0.6	Minor bugfix so that FastMKS gets built.	June 13, 2013, 21:26:10
1.0.5	Speedups of cover tree traversers; addition of rank-approximate nearest neighbor (RANN); addition of fast exact max-kernel search (FastMKS); fix for EM covariance estimation; more parameters for GMM estimation; force GMM and GaussianDistribution covariance matrices to be positive definite during training; add a tolerance parameter to the Baum-Welch algorithm for HMM training; fix for compilation with clang; fix for k-furthest neighbor search.	May 2, 2013, 07:24:32
1.0.4	Force minimum Armadillo version of 2.4.2; add locality-sensitive hashing (LSH); handle size_t support correctly with Armadillo 3.6.2; better tests for SGD and NCA; better output of types to streams; some style fixes.	February 8, 2013, 22:32:43
1.0.3	Armadillo 3.4.0 includes sparse matrix support internally; MLPACK's internal sparse matrix support has thus been removed.	September 17, 2012, 01:27:19
1.0.2	Added density estimation trees, nonnegative matrix factorization, an experimental cover tree implementation, and several bugfixes. See http://trac.research.cc.gatech.edu/fastlab/milestone/mlpack%201.0.2 for a full listing of tickets closed.	August 15, 2012, 20:47:13
1.0.1	Added local coordinate coding, sparse coding, kernel PCA, and several bugfixes.	March 20, 2012, 20:59:53
1.0.0	Yet another announcement on mloss.org.	December 17, 2011, 10:37:05
0.2	Initial Announcement on mloss.org.	November 20, 2009, 04:01:36
0.1	Initial Announcement on mloss.org.	October 7, 2008, 07:12:37

Comments

Eileen (on February 13, 2009, 12:13:23)

having this problem when running fl-build-all

/bin/sh: g++4: not found make: * [$FASTLIBPATH/bin/i686_Linux_fast_gcc4_-DDISABLE_DISK_MATRIX/obj/mlpack_allnn_main.o] Error 127

and a whole lot of similar error

Am i missing something?

fastlab (on February 14, 2009, 03:55:05)

You need to install gcc 4. Which platform are you running on?

Paul Rodriguez (on December 21, 2010, 21:38:24)

Hi,

I've set up the ccmake configuration options as appropriate but now I'm having trouble with the make command described below,

thanks, Paul Rodriguez

Using a santos linux, on an intel 64 bit processor, when I execute "make install" I get the following error regarding pthread_atfork:

-- A library with BLAS API found. -- A library with BLAS API found. -- A library with LAPACK API found. -- Configuring done -- Generating done -- Build files have been written to: /users/sdsc/prodriguez/mlpack-0.2/fastlib/build [ 2%] Built target template_types [ 5%] Built target template_types_detect [ 17%] Built target base [ 20%] Built target col [ 23%] Built target file [ 30%] Built target fx [ 33%] Built target la [ 35%] Built target data [ 35%] Built target tree [ 43%] Built target math [ 46%] Built target par [ 87%] Built target fastlib [ 89%] Built target otrav_test [ 92%] Built target col_test [ 94%] Building CXX object fastlib/data/CMakeFiles/dataset_test.dir/dataset_test.cc.o Linking CXX executable dataset_test /rmount/usr_apps/compilers/intel/Compiler/11.1/038/lib/intel64/libguide.so: undefined reference to `pthread_atfork' collect2: ld returned 1 exit status make[2]: [fastlib/data/dataset_test] Error 1 make[1]: [fastlib/data/CMakeFiles/dataset_test.dir/all] Error 2 make: * [all] Error 2

Andreas Mueller (on March 20, 2012, 13:29:07)

Two comments: 1) I have not found a way to contact the project on the project website. Having to come to mloss and logging in to contact the developers seems a bit weird.

2) mlpack does not seems to build with armadilla in a non-standard location. After trying to feed cmake the correct pathes for a while I gave up and installed globally. In particular, setting the paths in the CMake configuration doesn't help much. Would be cool if you could fix that.

Cheers, Andy

Ryan Curtin (on March 20, 2012, 20:22:49)

Hello Andy,

I've clarified www.mlpack.org a bit to note that the Trac site is where bugs can be filed.

As for finding Armadillo, I have not had a problem doing the following (in this instance, I've got Armadillo 2.99.1 built in /home/ryan/src/armadillo-2.99.1/)

build$ cmake -D ARMADILLO_INCLUDE_DIR=/home/ryan/src/armadillo-2.99.1/build/ -D ARMADILLO_LIBRARY=/home/ryan/src/armadillo-2.99.1/libarmadillo.so ../

Did those two variables (ARMADILLO_INCLUDE_DIR and ARMADILLO_LIBRARY) not work for you? If you're still having problems (or have other problems) feel free to file a ticket at

http://trac.research.cc.gatech.edu/fastlab/

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