my output file "output/recommender/part-r-00000", its content has nothing. May I understand right?
Thanks On Fri, Aug 2, 2013 at 10:20 AM, Sebastian Schelter <[email protected]> wrote: > The size should not matter, you should get output, what do you exactly > mean by "it has null"? > > --sebastian > > On 02.08.2013 03:44, hahn jiang wrote: > > The version of Mahout which I used is 0.7-cdh4.3.1 and I am sure that no > > errors occur. I check the output but it has null. > > I think the problem is my data set. > > Is it too small about my item set that only 200 elements? > > > > > > > > On Thu, Aug 1, 2013 at 9:57 PM, Sebastian Schelter <[email protected]> > wrote: > > > >> Which version of Mahout are you using? Did you check the output, are you > >> sure that no errors occur? > >> > >> Best, > >> Sebastian > >> > >> On 01.08.2013 09:59, hahn jiang wrote: > >>> Hi all, > >>> > >>> > >>> I have a question when I use RecommenderJob for item-based > >> recommendation. > >>> > >>> My input data format is "userid,itemid,1", so I set booleanData option > is > >>> true. > >>> > >>> The length of users is 9,000,000 but the length of item is 200. > >>> > >>> > >>> When I run the RecommenderJob, the result is null. I try many times use > >>> different arguments. But the result is also null. > >>> > >>> This is one of my commands. Would you help me for tell me why it is > null > >>> please? > >>> > >>> > >>> bash recommender-job.sh --input input/user-item-value --output > >>> output/recommender --numRecommendations 10 --similarityClassname > >>> SIMILARITY_PEARSON_CORRELATION --maxSimilaritiesPerItem 300 > >>> --maxPrefsPerUser 300 --minPrefsPerUser 1 > >> --maxPrefsPerUserInItemSimilarity > >>> 10000000 --booleanData true > >>> > >>> > >>> Thanks > >>> > >> > >> > > > >
