- General
- Developers
- Mahout-Samsara
- Algorithms
- List of algorithms
- Distributed Matrix Decomposition
- Cholesky QR
- SSVD
- Distributed ALS
- SPCA
- Recommendations
- Recommender Overview
- Intro to cooccurrence-based
recommendations with Spark - Classification
- Spark Naive Bayes
- MapReduce Basics
- List of algorithms
- Overview
- Working with text
- Creating vectors from text
- Collocations
- Dimensionality reduction
- Singular Value Decomposition
- Stochastic SVD
- Topic Models
- Latent Dirichlet Allocation
- Mahout MapReduce
- Classification
- Naive Bayes
- Hidden Markov Models
- Logistic Regression (Single Machine)
- Random Forest
- Classification Examples
- Breiman example
- 20 newsgroups example
- SGD classifier bank marketing
- Wikipedia XML parser and classifier
- Clustering
- k-Means
- Canopy
- Fuzzy k-Means
- Streaming KMeans
- Spectral Clustering
- Clustering Commandline usage
- Options for k-Means
- Options for Canopy
- Options for Fuzzy k-Means
- Clustering Examples
- Synthetic data
- Cluster Post processing
- Cluster Dumper tool
- Cluster visualisation
- Recommendations
- First Timer FAQ
- A user-based recommender
in 5 minutes - Matrix factorization-based
recommenders - Overview
- Intro to item-based recommendations
with Hadoop - Intro to ALS recommendations
with Hadoop
Building Mahout from source
Prerequisites
- Java JDK 1.7
- Apache Maven 3.3.3
Getting the source code
Checkout the sources from the Mahout GitHub repository either via
git clone git@github.com:apache/mahout.git or
git clone https://github.com/apache/mahout.git
##Hadoop version Mahout code depends on hadoop-client artifact, with the default version 2.4.1. To build Mahout against to a different hadoop version, hadoop.version property should be set accordingly and passed to the build command. Hadoop1 clients would additionally require hadoop1 profile to be activated.
The build lifecycle is illustrated below.
Compiling
Compile Mahout using standard maven commands
# With hadoop-2.4.1 dependency
mvn clean compile
# With hadoop-1.2.1 dependency
mvn -Phadoop1 -Dhadoop.version=1.2.1 clean compile
##Packaging
Mahout has an extensive test suite which takes some time to run. If you just want to build Mahout, skip the tests like this
# With hadoop-2.4.1 dependency
mvn -DskipTests=true clean package
# With hadoop-1.2.1 dependency
mvn -Phadoop1 -Dhadoop.version=1.2.1 -DskipTests=true clean package
In order to add mahout artifact to your local repository, run
# With hadoop-2.4.1 dependency
mvn clean install
# With hadoop-1.2.1 dependency
mvn -Phadoop1 -Dhadoop.version=1.2.1 clean install