Hi,Sebastian Because my data is on the production ,it 's very large .so sorry that I can not give you input data.
But we can try to review the code . The initial version cooccurence arithmetic has logic to skip user's existed items. Best Regards, 2011/1/14 Sebastian Schelter <s...@apache.org> > Hi Han, > > I extended the unit test in > org.apache.mahout.cf.taste.hadoop.item.RecommenderJobTest.testCompleteJob() > to explicitly check for that behavior and everything seems fine. > > Can you provide some input data where you see this happening? > > > --sebastian > > > > On 14.01.2011 09:43, han henry wrote: > >> Hi, Sebastian, >> >> I mean this one: >> >> >> http://svn.apache.org/repos/asf/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderJob.java >> >> >> 2011/1/14 Sebastian Schelter <s...@apache.org <mailto:s...@apache.org>> >> >> >> Hi, >> >> which recommender are you talking about? The distributed recommender >> does not do this, I checked it and will include a test for that into >> our unit tests. >> >> --sebastian >> >> >> >> On 14.01.2011 07:13, han henry wrote: >> >> Hi,All >> >> Now I have a issue ,Mahout 0.4 seems recommend user's existed >> items to user. >> >> I remembered that Mahout has skips those user's existed items >> when recommend >> items to user. >> >> But I have not found the logic for skipping the existed items >> in Mahout >> 0.4. >> >> Can anyone confirm that or let me know where can find the logic >> for skipping >> existed items ? >> >> Best Regards, >> >> >> >> >
