Examples of MapReduce jobs in different languages that can be run on Microsoft HDInsight Hadoop distribution (Lviv .NET User Group presentation by Yuriy Guts).

Ridiculously simple distributed applications in Ruby.

CloudDOE is a user friendly software package to deploy, operate and extend a MapReduce-based bioinformatics environment, which is collectively denoted as a CloudDOE Cloud.

My solutions for the problem sets in the Udacity Intro to Hadoop and MapReduce course

My solutions for the problem sets in the Udacity Intro to Hadoop and MapReduce course

Graph algorithm implemented with Apache Giraph for large-scale neural network simulation

A mongo-native-driver scope constructor that enables use of complex object instances in map reduce functions.

A wrapper for Hadoop in Scala

This project implements distributed Naive Bayes method for Classification problems using Hadoop.

mvn, servlet 3.0, hadoop 1.0.2, cassandra 2.0

Just playing with Hadoop

HN/Reddit social news websites big data analytic with Hadoop Hive and MapReduce. Discover correlation between a website's content and number of votes it receives on social news websites such as Reddit and HackerNews.

A MapReduce server using web browsers as workers, written in Go.

MapReduce and Mahout programs

QReadSelector is a subset selection of high-depth next generation sequencing reads for de novo genome assembly using MapReduce framework.

A very primitive type of recommender system

InvertedIndex using MapReduce

Hadoop Progaming

Example MapReduce jobs in Java, Hive, Pig, and Hadoop Streaming that work on Avro data.