twitter/scalding — pull request #176 by flavianv (2012-09-10 21:07:30+00:00)
Title: Adding new tutorials to Matrix.scala

Adding 6 new tutorials and the additional data files for them:
MatrixTutorial1.scala - compute cofollows in the follow graph
MatrixTutorial2.scala - filter out nodes with high outdegree from a graph
MatrixTutorial3.scala - compute the overlapping edges of two graphs and their differences
MatrixTutorial4.scala - compute the cosine similarity between each two vectors in a matrix
MatrixTutorial5.scala - compute the Jaccard similarity between each two vectors (taken as sets) in a matrix
MatrixTutorial6.scala - compute the Tf-idf of words starting from their document frequencies and do feature selection using their weights