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Amanpreet Singh Saini commented on MAHOUT-157: ---------------------------------------------- Hey Robin, Regarding your comment dated 07/Sep/09 06:32 I know its been a long time since the post, but i actually wanted to use pfpgrowth on mahout without closing of the itemsets. For it, I downloaded your source and tried to interpret it and initially i thought that the issue was in FPGrowth.generateSinglePathPatterns() as you are adding the entire conditional FP Tree in the frequentPatterns. For eg: if the conditional fp tree had [f:3 c:3 a:3 m:3], then this method makes the pattern [f,c,a,m | 3] and inserts it into the FrequentPatternMaxHeap. I thought the problem was not generating all the combinations here but it seems that i couldn't able to understand the code correctly. Could you please just lead me to the point(s) or code snippet(s) where the closure is being performed so that i could test on how to remove this closure. Thanks, Aman > Frequent Pattern Mining using Parallel FP-Growth > ------------------------------------------------ > > Key: MAHOUT-157 > URL: https://issues.apache.org/jira/browse/MAHOUT-157 > Project: Mahout > Issue Type: New Feature > Components: Frequent Itemset/Association Rule Mining > Affects Versions: 0.2 > Reporter: Robin Anil > Assignee: Robin Anil > Fix For: 0.2 > > Attachments: MAHOUT-157-August-17.patch, MAHOUT-157-August-24.patch, > MAHOUT-157-August-31.patch, MAHOUT-157-August-6.patch, > MAHOUT-157-Combinations-BSD-License.patch, > MAHOUT-157-Combinations-BSD-License.patch, > MAHOUT-157-CompactTransactionMapperFormat.patch, MAHOUT-157-Oct-1.patch, > MAHOUT-157-Oct-10.pfpgrowth.patch, > MAHOUT-157-Oct-8.TestedMapReducePipeline.patch, > MAHOUT-157-Oct-8.pfpgrowth.patch, > MAHOUT-157-Oct-9.StreamingDBRead-Inprogress.patch, > MAHOUT-157-September-10.patch, MAHOUT-157-September-18.patch, > MAHOUT-157-September-5.patch, MAHOUT-157-codecleanup-javadocs.patch, > MAHOUT-157-final.patch, MAHOUT-157-inProgress-August-5.patch > > > Implement: http://infolab.stanford.edu/~echang/recsys08-69.pdf -- This message was sent by Atlassian JIRA (v6.2#6252)