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Performance of ALS - Mahout - [mail # dev]
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...Hi there, with regard to Robin mentioning JBlas [1] recently when we talked about the performance of our vector operations, I ported the solving code for ALS to JBlas today and got som...
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Author: Sebastian Schelter,
2013-04-18, 20:37
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Re: immutable vs mutable vectors - Mahout - [mail # dev]
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...Yes, look at the assign() method which allows you to apply functions directly to the vector. /s On 15.04.2013 12:01, Andy Twigg wrote:...
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Author: Sebastian Schelter,
2013-04-15, 10:36
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Re: Call to action – Mahout needs your help - Mahout - [mail # dev]
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...It would be great if you could write a little documentation on how to use the ALS recommenders in practice. On 05.04.2013 01:56, Andrew Musselman wrote:...
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Author: Sebastian Schelter,
2013-04-13, 07:40
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Re: PlusMult and other functions - Mahout - [mail # dev]
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...+1 Am 12.04.2013 18:17 schrieb "Robin Anil" : ...
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Author: Sebastian Schelter,
2013-04-12, 16:24
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Re: Is Mahout the right tool to recommend cross sales? - Mahout - [mail # user]
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...You can also use the new MultithreadedBatchItemSimilarities class to efficiently precompute item similarities on a single machine without having to go to MapReduce. On 12.04.2013 00:54...
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Author: Sebastian Schelter,
2013-04-12, 05:23
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Re: Is Mahout the right tool to recommend cross sales? - Mahout - [mail # user]
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...Use ItemSimilarityJob instead of RowSimilarityJob, its the easy-to-use wrapper around that :) On 11.04.2013 19:28, Sean Owen wrote:...
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Author: Sebastian Schelter,
2013-04-11, 17:51
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Re: cross recommender - Mahout - [mail # user]
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...) to get this or have I missed something already in Mahout? It could be worth to investigate whether MatrixMultiplicationJob could be extended to compute similarities instead of dot pr...
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Author: Sebastian Schelter,
2013-04-11, 17:49
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Re: Code reviews and reviewers - Mahout - [mail # dev]
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...Dan, it's a pleasure to review your code. Ask me anytime :) On 09.04.2013 13:31, Dan Filimon wrote:...
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Author: Sebastian Schelter,
2013-04-09, 11:34
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Re: Any interest in Data Preparation? - Mahout - [mail # dev]
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...In general, I think it is great to have such tools. But they should be developed in context with a specific algorithm or problem. On 06.04.2013 17:47, Gokhan Capan wrote:...
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Author: Sebastian Schelter,
2013-04-06, 16:22
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Re: cross recommender - Mahout - [mail # user]
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...Completely concur with that. MatrixMultiplicationJob is already using a mapside merge-join AFAIK. On 05.04.2013 15:04, Ted Dunning wrote:...
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Author: Sebastian Schelter,
2013-04-06, 14:46
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