mahout | Welcome to Apache Mahout

 by   cloudera Java Version: Current License: Non-SPDX

kandi X-RAY | mahout Summary

kandi X-RAY | mahout Summary

mahout is a Java library typically used in Big Data, Spark applications. mahout has no bugs, it has no vulnerabilities, it has build file available and it has high support. However mahout has a Non-SPDX License. You can download it from GitHub.

Welcome to Apache Mahout!. Mahout is a scalable machine learning library that implements many different approaches to machine learning. The project currently contains implementations of algorithms for classification, clustering, frequent item set mining, genetic programming and collaborative filtering. Mahout is scalable along three dimensions: It scales to reasonably large data sets by leveraging algorithm properties or implementing versions based on Apache Hadoop. It scales to your perferred business case as it is distributed under a commercially friendly license. In addition it scales in terms of support by providing a vibrant, responsive and diverse community. To compile the sources run 'mvn clean install' To run all the tests run 'mvn test' To setup your ide run 'mvn eclipse:eclipse' or 'mvn idea:idea' For more info on maven see

            kandi-support Support

              mahout has a highly active ecosystem.
              It has 29 star(s) with 24 fork(s). There are 19 watchers for this library.
              It had no major release in the last 6 months.
              There are 2 open issues and 0 have been closed. On average issues are closed in 1398 days. There are 4 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of mahout is current.

            kandi-Quality Quality

              mahout has 0 bugs and 0 code smells.

            kandi-Security Security

              mahout has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              mahout code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              mahout has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              mahout releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              It has 119533 lines of code, 8992 functions and 1401 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed mahout and discovered the below as its top functions. This is intended to give you an instant insight into mahout implemented functionality, and help decide if they suit your requirements.
            • Entry point for debugging
            • Trains Bounch algorithm
            • Backward algorithm
            • Runs the forward algorithm on the observed model
            • Runs the recommender job
            • Set the byte sort
            • Performs the recommender
            • Set the byte sort
            • Runs the recommendations
            • Set the byte sort
            • Calculates the user similarity between the two user IDs
            • Perform a factorization
            • Main entry point for the command line tool
            • Estimates the best preference for the given user ID
            • Entry point for testing of the HMM model
            • Trains a supervised sequence using pseudo sequences
            • Initialize the random probabilities
            • Creates a factorization for the data model
            • Trains the viterbi of the given observation sequence
            • Optimize the solution
            • Performs training program
            • Returns the similarity between two users
            • The optimization function
            • Command line parser
            • Calculates the training statistics
            • Mapping between words
            • Entry point
            • Main method for testing
            Get all kandi verified functions for this library.

            mahout Key Features

            No Key Features are available at this moment for mahout.

            mahout Examples and Code Snippets

            No Code Snippets are available at this moment for mahout.

            Community Discussions


            Does Hadoop 3 support Mahout?
            Asked 2021-Feb-24 at 06:54

            I was wondering if any Mahout version has been confirmed to work properly with any version of Hadoop 3.x. It looks like both Cloudera's and Amazon's Hadoop distribution removed Mahout when they went from Hadoop 2 to Hadoop 3. But I cannot find any reason for omitting Mahout.

            Does anyone have a source or personal experience that indicates that Mahout can work with Hadoop 3?



            Answered 2021-Feb-24 at 06:54

            The hadoop version recommended by trunk branch of Mahout on git hub is hadoop-2.4.1

            but take a look at this dockerfile on maser branch:

            it uses spark v2.3.1 on hadoop 3.0 gettyimages/spark:2.3.1-hadoop-3.0

            hope it could help



            Flume NoSuchMethodError pulling Twitter data into HDFS
            Asked 2020-Dec-18 at 15:24

            I can't manage to pull Twitter data using Flume into HDFS due to an error I cant't get rid of.

            command :



            Answered 2020-Dec-18 at 15:24

            I managed to make it works. For those who want to know, please read this.

            Firstly, change the Flume version. I use now flume 1.7.0 But maybe a newer version would work, I don't want to break it down :)

            Secondly, clone this repo Inside, there is a flume.conf file. I configured it like that :



            Install Boto3 AWS EMR Failed attempting to download bootstrap action
            Asked 2020-Jul-19 at 23:14

            I am trying to create my cluster using bootstrap actions option (which install boto3 on all nodes), but getting always Master instance failed attempting to download bootstrap action 1 file from S3

            my bootstrapfile: sudo pip install boto3

            Command to create cluster :

            aws emr create-cluster --applications Name=Hadoop Name=Hive Name=Hue Name=Mahout Name=Pig Name=Tez --ec2-attributes "{\"KeyName\":\"key-ec2\",\"InstanceProfile\":\"EMR_EC2_DefaultRole\",\"SubnetId\":\"subnet-49ad9733\",\"EmrManagedSlaveSecurityGroup\":\"sg-009d9df2b7b6b1302\",\"EmrManagedMasterSecurityGroup\":\"sg-0149cdd6586fe6db5\"}" --service-role EMR_DefaultRole --enable-debugging --release-label emr-5.30.1 --log-uri "s3n://aws-logs-447793603558-us-east-2/elasticmapreduce/" --name "MyCluster" --instance-groups "[{\"InstanceCount\":1,\"EbsConfiguration\":{\"EbsBlockDeviceConfigs\":[{\"VolumeSpecification\":{\"SizeInGB\":32,\"VolumeType\":\"gp2\"},\"VolumesPerInstance\":1}]},\"InstanceGroupType\":\"MASTER\",\"InstanceType\":\"m4.large\",\"Name\":\"Master Instance Group\"},{\"InstanceCount\":2,\"EbsConfiguration\":{\"EbsBlockDeviceConfigs\":[{\"VolumeSpecification\":{\"SizeInGB\":32,\"VolumeType\":\"gp2\"},\"VolumesPerInstance\":1}]},\"InstanceGroupType\":\"CORE\",\"InstanceType\":\"m4.large\",\"Name\":\"Core Instance Group\"}]" --scale-down-behavior TERMINATE_AT_TASK_COMPLETION --region us-east-2 --bootstrap-action Path=s3://calculsdistribues/

            I already created successfuly cluster without the bootstrap-action option.

            What is the mistake here ? how my bootstrap file should looks like ? Thank you



            Answered 2020-Jul-19 at 22:46

            Make sure you have given read access to s3 bucket where your bootstrap script is present for the Instace profile "InstanceProfile\":\"EMR_EC2_DefaultRole



            How do I format input from a text file into a defaultdict in python
            Asked 2020-May-01 at 15:37

            Text file has over 50K lines with this format



            Answered 2020-May-01 at 15:37

            Using ast.literal_eval you can convert string list to list



            How do I format lines from a text file in python
            Asked 2020-May-01 at 14:28

            Original txt file:



            Answered 2020-May-01 at 05:30

            If the text to be removed is always exactly as above. You can do a simple replace.



            SLF4J: Class path contains multiple SLF4J bindings Spring Maven
            Asked 2020-Mar-26 at 20:39

            After adding apache.mahout to my pom.xml I started to have this warning when i run my spring project and i want to know how supress this warning.



            Answered 2020-Mar-26 at 20:39
            1. You need to find out who pulls in slf4j-log4j. Do a "mvn:dependency:tree" on the command line in your pom.xml directory and find the dependency that pulls it in.
            2. Put the exclusion on that dependency. Global exclusions don't work.
            3. That should work.


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install mahout

            You can download it from GitHub.
            You can use mahout like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the mahout component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone cloudera/mahout

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