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https://issues.apache.org/jira/browse/MAHOUT-376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12986153#action_12986153
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Dmitriy Lyubimov edited comment on MAHOUT-376 at 1/24/11 7:57 PM:
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This is essentially 'patch available' except it requires 0.21 or CDH3 to
compile (new API which is incomplete in 0.20). Hence i will not be changing the
status here -- i guess we can use this when Mahout switches to new api.
I will open another issue for backport of this to 0.20.
PS. I guess i did click on 'patch available', didn't I? I did not mean to --
this patch changes the whole dependency thing for mahout. please roll back the
status. My apologies.
was (Author: dlyubimov2):
This is essentially 'patch available' except it requires 0.21 or CDH3 to
compile (new API which is incomplete in 0.20). Hence i will not be changing the
status here -- i guess we can use this when Mahout switches to new api.
I will open another issue for backport of this to 0.20.
> Implement Map-reduce version of stochastic SVD
> ----------------------------------------------
>
> Key: MAHOUT-376
> URL: https://issues.apache.org/jira/browse/MAHOUT-376
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Fix For: 0.5
>
> Attachments: MAHOUT-376.patch, Modified stochastic svd algorithm for
> mapreduce.pdf, QR decomposition for Map.pdf, QR decomposition for Map.pdf, QR
> decomposition for Map.pdf, sd-bib.bib, sd.pdf, sd.pdf, sd.pdf, sd.pdf,
> sd.tex, sd.tex, sd.tex, sd.tex, SSVD working notes.pdf, SSVD working
> notes.pdf, SSVD working notes.pdf, SSVD working notes.pdf, SSVD working
> notes.pdf, ssvd-CDH3-or-0.21.patch.gz, ssvd-CDH3-or-0.21.patch.gz,
> ssvd-CDH3-or-0.21.patch.gz, ssvd-CDH3-or-0.21.patch.gz,
> ssvd-CDH3-or-0.21.patch.gz, ssvd-CDH3-or-0.21.patch.gz,
> ssvd-CDH3-or-0.21.patch.gz, ssvd-CDH3-or-0.21.patch.gz,
> ssvd-CDH3-or-0.21.patch.gz, ssvd-m1.patch.gz, ssvd-m2.patch.gz,
> ssvd-m3.patch.gz, Stochastic SVD using eigensolver trick.pdf
>
>
> See attached pdf for outline of proposed method.
> All comments are welcome.
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