Re: LDA with Mahout

2011-10-08 Thread Sean Owen
...or you can try: http://translate.google.com/translate?u=http%3A%2F%2Frogerdai16.wordpress.com%2F2011%2F08%2F20%2F%25E6%2589%2593%25E5%258C%2585mahout%2Fsl=zh-CNtl=enhl=ie=UTF-8 or use Chrome to do it on the fly. On Sat, Oct 8, 2011 at 9:16 AM, 戴清灏 rogerda...@gmail.com wrote: If you can

Re: Any plan to support markov chain based recommender ?

2011-10-08 Thread Grant Ingersoll
I haven't seen any discussion on it. Do you have a paper or other reference on it? That usually helps in discussing how to go about it. We have HMM for classification. On Oct 7, 2011, at 10:33 PM, Colin wrote: I haven't find any MC-based open source recommender. Does Mahout have any plan

Re: Any plan to support markov chain based recommender ?

2011-10-08 Thread Dhruv Kumar
Here is one reference which I have used earlier for a class project: http://jmlr.csail.mit.edu/papers/volume6/shani05a/shani05a.pdf One can think of recommendation as an instance of sequential optimal decision making problem, something which MDPs have been traditionally used for. Given the

how to run taste-web under new trunk

2011-10-08 Thread Walter Chang
Hi since taste-web has been migrated to integration folder, how do i compile and run taste web application using the new place ? Sorry I dont know a lot about Java. Please help me. Weide

Re: how to run taste-web under new trunk

2011-10-08 Thread Sean Owen
This doesn't exist in the same form it used to; it will take a bit more work. You need to compile Mahout, and get the core and integration .jar files. Make a web application, including these in WEB-INF/lib. You can use the web.xml file you find under integration for the web app too, at

Re: 'bin/mahout rowid' failing

2011-10-08 Thread Ted Dunning
On Sat, Oct 8, 2011 at 12:43 PM, Dan Brickley dan...@danbri.org wrote: ... ...and I get as expected, a few less than 100 due to the cleaning (88). Each of these has 27683 values, which is the number of topic codes in my data. I'm reading this (correct me if I have this backwards) as if my

Re: 'bin/mahout rowid' failing

2011-10-08 Thread Dan Brickley
On 8 October 2011 23:58, Ted Dunning ted.dunn...@gmail.com wrote: On Sat, Oct 8, 2011 at 12:43 PM, Dan Brickley dan...@danbri.org wrote: ... ...and I get as expected, a few less than 100 due to the cleaning (88). Each of these has 27683 values, which is the number of topic codes in my data.

Re: 'bin/mahout rowid' failing

2011-10-08 Thread Ted Dunning
On Sat, Oct 8, 2011 at 4:11 PM, Dan Brickley dan...@danbri.org wrote: Also, while you are at it, I think that the code in MAHOUT-792 might be able to do these decompositions at your scale much, much faster since they use an in-memory algorithm on a single machine to avoid all the

RandomForest out of bag error

2011-10-08 Thread deneche abdelhakim
While reviewing Decision Forest code, I noticed that computing the out of bag error (OOB) of the forest while training it made the implementation really messy. I made a lot of assumptions about the way Hadoop works internally (especially the way it splits the data), this proven many times to be