Hi Stephane, This is achieved by the addition of the dampingVector in line 99.
http://svn.apache.org/viewvc/mahout/trunk/core/src/main/java/org/apache/mahout/graph/linkanalysis/RandomWalk.java?view=markup --sebastian 2011/10/19 Stéphane Campinas <[email protected]>: > Hi, > > I have a question regarding the code of the PageRankJob class [1]. I do not > see where > the "stochasticity adjustment" [2] is done in the code. It seems that a row > of zeros is not > replaced by 1/n*Ones(), with n the number of vertices and Ones() the vector > with only 1 > as values. > Could you tell me where this operation is done ? > > Thanks > > [1] > http://www.google.com/codesearch#6LK_nEANBKE/core/src/main/java/org/apache/mahout/graph/linkanalysis/PageRankJob.java&type=cs&l=221 > <http://www.google.com/codesearch#6LK_nEANBKE/core/src/main/java/org/apache/mahout/graph/linkanalysis/PageRankJob.java&type=cs&l=221> > [2] > http://books.google.com/books?id=hxvB14-I0twC&lpg=PA37&ots=7VPrLh9q3U&dq=%22stochasticity%20adjustment%22&pg=PA37#v=onepage&q=%22stochasticity%20adjustment%22&f=false > <http://books.google.com/books?id=hxvB14-I0twC&lpg=PA37&ots=7VPrLh9q3U&dq=%22stochasticity%20adjustment%22&pg=PA37#v=onepage&q=%22stochasticity%20adjustment%22&f=false> > > -- > Campinas Stéphane >
