On Mon, Aug 12, 2013 at 2:53 PM, Ted Dunning <ted.dunn...@gmail.com> wrote:
> Here are the uses [1] > > Counting the unique usages, we have these: > > 2 distribution.PoissonDistribution; > 2 distribution.PascalDistribution; > 2 distribution.NormalDistribution; > 1 util.FastMath; > 1 random.RandomGenerator; > 1 random.MersenneTwister; > 1 primes.Primes; > 1 linear.RealMatrix; > 1 linear.EigenDecomposition; > 1 linear.Array2DRowRealMatrix; > 1 distribution.RealDistribution; > 1 distribution.IntegerDistribution; > 1 analysis.integration.UnivariateIntegrator; > 1 analysis.integration.RombergIntegrator; > 1 analysis.UnivariateFunction; > > These are pretty much all to do with statistical distributions. > > There is a residual EigenDecomposition, but that may be something that > Dmitriy has already eliminated. > > The files that are involved are: > > 3 EigenSolverWrapper.java > this file should have been deleted on trunk... let me know if not, it was part of "wean SSVD off apache.math dep" commit > 3 DistributionChecks.java > 2 UncommonDistributions.java > 2 RandomWrapper.java > 2 PoissonSamplerTest.java > 1 SamplingLongPrimitiveIterator.java > 1 SamplingIterator.java > 1 RandomUtils.java > 1 PoissonSampler.java > 1 NormalTest.java > 1 BreimanExample.java > > I will take a quick hack at these to see what can be done easily. > > [1] find . -name *.java | xargs grep -nH -e math3 > > ./core/src/main/java/org/apache/mahout/cf/taste/impl/common/SamplingLongPrimitiveIterator.java:23:import > org.apache.commons.math3.distribution.PascalDistribution; > > ./core/src/main/java/org/apache/mahout/clustering/dirichlet/UncommonDistributions.java:20:import > org.apache.commons.math3.distribution.NormalDistribution; > > ./core/src/main/java/org/apache/mahout/clustering/dirichlet/UncommonDistributions.java:21:import > org.apache.commons.math3.distribution.RealDistribution; > > ./core/src/main/java/org/apache/mahout/common/iterator/SamplingIterator.java:24:import > org.apache.commons.math3.distribution.PascalDistribution; > > ./examples/src/main/java/org/apache/mahout/classifier/df/BreimanExample.java:32:import > org.apache.commons.math3.util.FastMath; > ./math/src/main/java/org/apache/mahout/common/RandomUtils.java:26:import > org.apache.commons.math3.primes.Primes; > ./math/src/main/java/org/apache/mahout/common/RandomWrapper.java:20:import > org.apache.commons.math3.random.MersenneTwister; > ./math/src/main/java/org/apache/mahout/common/RandomWrapper.java:21:import > org.apache.commons.math3.random.RandomGenerator; > > ./math/src/main/java/org/apache/mahout/math/random/PoissonSampler.java:21:import > org.apache.commons.math3.distribution.PoissonDistribution; > > ./math/src/main/java/org/apache/mahout/math/ssvd/EigenSolverWrapper.java:19:import > org.apache.commons.math3.linear.Array2DRowRealMatrix; > > ./math/src/main/java/org/apache/mahout/math/ssvd/EigenSolverWrapper.java:20:import > org.apache.commons.math3.linear.EigenDecomposition; > > ./math/src/main/java/org/apache/mahout/math/ssvd/EigenSolverWrapper.java:21:import > org.apache.commons.math3.linear.RealMatrix; > > ./math/src/test/java/org/apache/mahout/math/jet/random/DistributionChecks.java:20:import > org.apache.commons.math3.analysis.UnivariateFunction; > > ./math/src/test/java/org/apache/mahout/math/jet/random/DistributionChecks.java:21:import > org.apache.commons.math3.analysis.integration.RombergIntegrator; > > ./math/src/test/java/org/apache/mahout/math/jet/random/DistributionChecks.java:22:import > org.apache.commons.math3.analysis.integration.UnivariateIntegrator; > > ./math/src/test/java/org/apache/mahout/math/random/NormalTest.java:20:import > org.apache.commons.math3.distribution.NormalDistribution; > > ./math/src/test/java/org/apache/mahout/math/random/PoissonSamplerTest.java:20:import > org.apache.commons.math3.distribution.IntegerDistribution; > > ./math/src/test/java/org/apache/mahout/math/random/PoissonSamplerTest.java:21:import > org.apache.commons.math3.distribution.PoissonDistribution; > > > > On Mon, Aug 12, 2013 at 2:11 PM, Dmitriy Lyubimov <dlie...@gmail.com> > wrote: > > > hm. so it crept in. > > > > As far back as i can recollect, we tried to minimize those and the only > > limiting factor for us were decompositions. Now all decompositions are > > available natively to Mahout, so perhaps it is time to review these > > occurrences. > > > > > > On Mon, Aug 12, 2013 at 2:03 PM, Stevo Slavić <ssla...@gmail.com> wrote: > > > > > There are 30 matches when searching for "org.apache.commons.math3" in > > > Mahout java files. > > > > > > > > > On Fri, Aug 9, 2013 at 8:34 PM, Dmitriy Lyubimov <dlie...@gmail.com> > > > wrote: > > > > > > > FYI SSVD does not have that dependency anymore (thanks to fixes to > > > > EigenSolver in Mahout). If there are no more methods using it, it can > > be > > > > deleted from pom. > > > > > > > > -d > > > > > > > > > >
