Have you looked at the code?
This might also help:
http://info.mapr.com/resources_ebook_anewlook_anomalydetection.html?cid=blog
http://berlinbuzzwords.de/session/deep-learning-high-performance-time-series-databases
On Tue, Jun 10, 2014 at 2:28 AM, matteo poletti wrote:
> Hi everybody,
>
>
Sahil,
You say:
Also the use of item-based collaborative filtering recommender turns out to
be time consuming.
In my experience, item-based systems tend to be the fastest ones.
Perhaps we mean different things.
What I mean is similar to the approach where indicator behaviors are
computed and
ing to do e2e local math optimizer
> > and how long it will take. maybe, both is possible -- faster local gains
> we
> > know current algorithms need, and longer term overhaul that included e2e
> > in-core plans.
> >
> >
> > On Mon, Jun 9, 2014 at 4:16 PM
On Mon, Jun 9, 2014 at 4:12 PM, Dmitriy Lyubimov wrote:
> One open question i had was,well, since the outlined approach avoids
> logical plans still for in-core matrix, it would be difficult to optimize
> the expressions in this context (i.e. figure out best-working _output_
> structure).
>
This
Sounds like a very plausible root cause.
On Mon, Jun 9, 2014 at 4:03 PM, Pat Ferrel (JIRA) wrote:
>
> [
> https://issues.apache.org/jira/browse/MAHOUT-1464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025893#comment-14025893
> ]
>
> Pat Ferrel
So D's disparagement of my half-assed fix for our egregrious
mis-performance has lead me to thinking about what a real optimizer would
do.
I think we all agree that we are attempting to maximize performance for a
flow of operations given pre-existing layouts. Transformations include
combining and
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Ted Dunning resolved MAHOUT-1577.
-
Resolution: Fixed
Made a big step on PMD. Findbugs will be more intransigent because most of
Ted Dunning created MAHOUT-1577:
---
Summary: FindBugs and PMD settings unrealistic
Key: MAHOUT-1577
URL: https://issues.apache.org/jira/browse/MAHOUT-1577
Project: Mahout
Issue Type: Bug
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Ted Dunning resolved MAHOUT-1576.
-
Resolution: Fixed
Closing since tests pass.
> Do a quick style pass to knock down s
Ted Dunning created MAHOUT-1576:
---
Summary: Do a quick style pass to knock down some accumulated
warnings
Key: MAHOUT-1576
URL: https://issues.apache.org/jira/browse/MAHOUT-1576
Project: Mahout
> >
> > Key: MAHOUT-1575
> > URL: https://issues.apache.org/jira/browse/MAHOUT-1575
> > Project: Mahout
> > Issue Type: Bug
> >Reporter: Ted Dunning
> >
> > The c
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Ted Dunning resolved MAHOUT-1575.
-
Resolution: Fixed
Committed small patch to allow 2 extra passes
> Conjugate gradient assu
Ted Dunning created MAHOUT-1575:
---
Summary: Conjugate gradient assumes best case scenario for
convergence
Key: MAHOUT-1575
URL: https://issues.apache.org/jira/browse/MAHOUT-1575
Project: Mahout
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Ted Dunning commented on MAHOUT-1574:
-
{quote}
(1) first, an added test is fai
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Ted Dunning reopened MAHOUT-1574:
-
Assignee: Ted Dunning
Oops. Regressed with new code in terms of matrix size checking
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Ted Dunning resolved MAHOUT-1574.
-
Resolution: Fixed
Committed trivial fix.
> SparseRowMatrix needs performance improvement
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Ted Dunning resolved MAHOUT-1574.
-
Resolution: Fixed
Committed fixes and tests.
> SparseRowMatrix needs performance improvem
Ted Dunning created MAHOUT-1574:
---
Summary: SparseRowMatrix needs performance improvement for times()
Key: MAHOUT-1574
URL: https://issues.apache.org/jira/browse/MAHOUT-1574
Project: Mahout
Great list of issues.
On Wed, Jun 4, 2014 at 12:59 AM, Sebastian Schelter wrote:
> Hi,
>
> I did some experimentation with the spark bindings on a real cluster
> yesterday, as I had to run some experiments for a paper (unrelated to
> Mahout) that I'm currently writing. The experiment basicall
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Ted Dunning commented on MAHOUT-1529:
-
I am not sold but I don't th
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Ted Dunning commented on MAHOUT-1567:
-
A sequential implementation would stil
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Ted Dunning commented on MAHOUT-1567:
-
Here are three possible pages that might
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Ted Dunning commented on MAHOUT-1567:
-
Mairal's method is one of the
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Ted Dunning commented on MAHOUT-1567:
-
Maciej,
Can you say a bit more about
’s SSVD
> PCA, Transpose, multiply, etc.
>
> On May 29, 2014, at 2:32 PM, Ted Dunning wrote:
>
> Pat
>
> I would like to see the co and cross occurrence code separated out a bit
> so that they take drm args.
>
> Sent from my iPhone
>
> > On May 29, 2014, a
g for—a recommender service.
>
> Is anyone else interested in CLI, drivers, read/write in the import/export
> sense? Or a new architecture for the recommenders? If so, maybe a separate
> thread?
>
> On May 29, 2014, at 7:03 AM, Ted Dunning wrote:
>
> Andrew,
>
>
Yes.
On Thu, May 29, 2014 at 7:25 AM, Ray wrote:
> Just to verify: Is Mahout now accepting code comprised entirely of Scala?
>
> Ray
>
Andrew,
Sebastian and I were talking yesterday and guessing that you would be
interested in this soon. Glad to know the world is as expected.
Yes. This needs to happen at least at a very conceptual level. For
instance, for classifiers, I think that we need to have something like:
- progres
+1
Let's use a successful scala model as a suggestion about where to go. It
seems plausible that Java could emulate the building of a lazy DSL logical
plan and then poke it in plausible ways with the addition of a wrapper
layer. But that only helps if the Scala layer succeeds.
On Tue, May 27,
With git you can push or pull to multiple repos.
To merge the pull request, you can pull from a specific branch from a
specific source repo where the pull request came from. Then you push to
git-wip at apache making sure that the Fixes #... message is on the merge.
Then magic intervenes and all
to adapt to java 8 .**
> **So it's better to be prepared for it. Since we can do everything with
> java 8 , than why to be dependent on scala.**
> **Atleast we should start discussing it now to be well prepared for
> future. *
>
> On 05/25/2014 07:14 PM, Ted Dunning wrote:
&g
Scala allows lazy evaluation and operator overloading and lambdas which can
be serialized. Java 8 provides lambdas that I am not sure if you can
serialize.
Also, Spark already uses Scala which has been around for a decade. Java8
isn't here yet.
On Sun, May 25, 2014 at 12:48 PM, bandi shankar
> On Fri, May 23, 2014 at 4:43 PM, Sebastian Schelter <
> > ssc.o...@googlemail.com
> > > wrote:
> >
> > > Big +1
> > > Am 23.05.2014 15:33 schrieb "Ted Dunning" :
> > >
> > > > What do folks think about spinning out a new ve
May 23, 2014 at 4:43 PM, Sebastian Schelter <
> ssc.o...@googlemail.com
> > wrote:
>
> > Big +1
> > Am 23.05.2014 15:33 schrieb "Ted Dunning" :
> >
> > > What do folks think about spinning out a new version of 0.9 that only
> > > changes which
What do folks think about spinning out a new version of 0.9 that only
changes which version of Hadoop the build uses?
There have been quite a few questions lately on this topic.
My suggestion would be that we use minor version numbering to maintain this
and the normal 0.9 release simultaneously i
I will check as soon as I can. That won't be soon since I am currently on a
plane stuck by weather in the wrong place. No idea when I will able to touch
the internet again.
Sent from my iPhone
> On May 22, 2014, at 13:55, Dmitriy Lyubimov wrote:
>
> At this point I simply would like everyo
Wow. Quick
We also need web site updates quickly.
Sent from my iPhone
> On May 22, 2014, at 13:14, Dmitriy Lyubimov wrote:
>
> Hi,
>
> (1) git migration of the project is now complete. Any volunteers to verify
> per INFRA-? If you do, please report back to the issue.
>
> (2) Anybody
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Ted Dunning commented on MAHOUT-1490:
-
{quote}
> (5) or compress wheneve
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Ted Dunning commented on MAHOUT-1490:
-
(5) or compress whenever there is dange
Very good description of benefits.
On Wed, May 21, 2014 at 5:26 AM, Gokhan Capan wrote:
> I want to express my opinions for the vision, too. I tried to capture those
> words from various discussions in the dev-list, and hope that most, of them
> support the common sense of excitement the new Ma
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Ted Dunning commented on MAHOUT-1490:
-
D,
Many algorithms can handle del
On Mon, May 19, 2014 at 11:08 AM, Dmitriy Lyubimov (JIRA)
wrote:
> [~avati] do you think you could perhaps explain (or reference principled
> foundation publication) of the algorithm that is happening here?
One of the most commonly effective compression techniques is dictionary +
run-length. Fo
On Sun, May 18, 2014 at 11:33 AM, Sebastian Schelter wrote:
> I suggest we start with a specific draft that someone prepares (maybe Ted
> as he started the thread)
This is a good strategy, and I am happy to start the discussion, but I
wonder if it might help build consensus if somebody else sta
On Sun, May 18, 2014 at 10:44 AM, Pat Ferrel wrote:
> I think Ted’s intent was to find a simple consensus statement that
> addresses where the project is going in a general way.
Indeed. And I would emphasize the word consensus.
I am trying to build a bit of consensus here. I really think tha
It sounds like a reasonable addition.
Can you fine a JIRA?
On Sun, May 18, 2014 at 3:19 AM, Karol Grzegorczyk wrote:
> Hi,
>
> To get more statistics on classification results, in our project we
> slightly extended ResultAnalyzer and ConfusionMatrix classes, adding
> calculation of weighted av
infra? I’m super grateful for the guys who work
> on all this but is it becoming unmaintainable? With every new thing we ask
> for (git + svn integration? plus running git repos) they can probably do it
> but it adds more moving parts until some day...
>
>
> On May 16, 2014, at
+1
This is a good move. Several of the projects I have been involved in
(Drill, Spark for instance) use git and the results are very positive. The
benefits are slightly technical (git works better for me than SVN), but
majorly social (use of git as primary with github integration is a big
deal,
On Fri, May 9, 2014 at 4:17 PM, Pat Ferrel wrote:
> But pull requests would just be for contributors, right? Committers should
> be able to push to the master directly, right?
>
Not necessarily. Pull requests are so lovely nice to work with no matter
who you are.
I can easily imagine using the
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Ted Dunning commented on MAHOUT-1490:
-
This column orientation sounds like a
.. yes. It would be nice to use the pretty green button on the github
site, but it isn't much more work to do the merges manual. For merges that
are clean, there are 3 or 4 commands required to merge the PR and github
provides them. Doing the JIRA is additional effort.
>
> On May 1
On Wed, May 7, 2014 at 9:54 AM, Pat Ferrel wrote:
> Seems like the vision comes from feature champions. I may not use Mahout
> in the same way you do but I rely on your code. Maybe I serve a different
> user type than you. I don’t see a problem with that, do you?
>
Sounds good to me.
I have been involved in side conversations to try to build a bit of unity
among our community and would like to propose this as a statement of what
we are doing:
Apache Mahout is moving immediately to a faster execution model. The first
of these is Spark. Outside contributions are always encourag
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Ted Dunning commented on MAHOUT-1547:
-
There are few projects left (if any) w
I subscribe to mahout and other topics on SO and try to redirect people to
the mailing lists after giving some level of answer.
On Mon, May 5, 2014 at 6:02 AM, Andrew Musselman wrote:
> Good point.
>
> > On May 4, 2014, at 6:25 PM, Pat Ferrel wrote:
> >
> > Stackoverflow.
> >
> > Not everyon
I am rarely able to diagnose Jenkins problems without tearing the job down
and adding bits one at a time. Most of the problems are environmental and
thus hard to understand from the point of view of our builds.
This may be an exception because of the recent changes, but the comment
somebody made
The submit patch link is mis-named.
Look under "More".
Also, you have to be logged in to JIRA to do this.
On Sat, May 3, 2014 at 4:40 PM, dodi hakim wrote:
> Sorry, where is it? is it in the submit patch link? it's gone now
>
>
> On 4 May 2014 00:27, Sebastian Schelter wrote:
>
> > You hav
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Ted Dunning commented on MAHOUT-1541:
-
{quote}
BTW do we really need to sup
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Ted Dunning commented on MAHOUT-1529:
-
{quote}
BTW I truly envy the Spark pro
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Ted Dunning commented on MAHOUT-1532:
-
So the matrix has to be square and have a
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Ted Dunning commented on MAHOUT-1532:
-
Can somebody clarify what kind of solve(
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Ted Dunning commented on MAHOUT-1532:
-
QR is definitely the way to go where it w
Wed, Apr 30, 2014 at 4:09 PM, Ted Dunning
> wrote:
>
> > I should add that the way that the compression is done is pretty cool for
> > speed. The basic idea is that byte code engineering is used to directly
> > inject the decompression and compression code into the user
Ted Dunning
> wrote:
>
> > Inline
> >
> >
> > On Wed, Apr 30, 2014 at 8:25 PM, Dmitriy Lyubimov
> > wrote:
> >
> > > On Wed, Apr 30, 2014 at 7:06 AM, Ted Dunning
> > > wrote:
> > >
> > > >
> > > > My motiv
include statements that something crushes
> something without providing a link to a published analysis of what it is
> something that crushes something another and due to what something.
>
>
> On Wed, Apr 30, 2014 at 4:16 PM, Ted Dunning
> wrote:
>
> > It seems to me t
It seems to me that Sebastian and Ellen have hit on the right tack.
Let's get back to work making something cool here. Let's build this
community up instead of having endlessly divisive discussions.
Let's get back to the Apache emphasis on do-acracy.
On Wed, Apr 30, 2014 at 11:36 AM, Ellen Fr
Inline
On Wed, Apr 30, 2014 at 8:25 PM, Dmitriy Lyubimov wrote:
> On Wed, Apr 30, 2014 at 7:06 AM, Ted Dunning
> wrote:
>
> >
> > My motivation to accept comes from the fact that they have machine
> learning
> > codes that are as fast as what google has internal
On Wed, Apr 30, 2014 at 9:24 PM, Dmitriy Lyubimov wrote:
> On Wed, Apr 30, 2014 at 11:42 AM, Dmitriy Lyubimov >wrote:
>
> > I also would suggest to take some guinea pigs to validate stuff.
> >
> > E.g. if i may make a suggestion, let's see how we'd do a categorical
> > variable vectorization int
+1 for foundations first.
There are bunches of algorithms just behind that. K-means. SGD+Adagrad
regression. Autoencoders. K-sparse encoding. Lots of stuff.
On Wed, Apr 30, 2014 at 4:52 PM, Sebastian Schelter wrote:
> I think you should concentrate on MAHOUT-1490, that is a highly import
The motivation to contribute comes from h2o.
My motivation to accept comes from the fact that they have machine learning
codes that are as fast as what google has internally. They completely
crush all of the spark efforts on speed.
The sample bit was more to experiment with ways to bring the mah
One thought is to extract the code, publish on github with warnings about
no support. Then if there are requests, we can point them to the GH
archive and tell them to go for it.
On Mon, Apr 28, 2014 at 10:03 AM, Suneel Marthi wrote:
> +100 to purging this from the codebase. This stuff uses t
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Ted Dunning commented on MAHOUT-1236:
-
I would close this for now since the m
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Ted Dunning commented on MAHOUT-1500:
-
[~dlie...@gmail.com]'s comments hav
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Ted Dunning commented on MAHOUT-1469:
-
[~arapmv]
There is a known bottle nec
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Ted Dunning commented on MAHOUT-1252:
-
I completely agree with Suneel on
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Ted Dunning commented on MAHOUT-1500:
-
The h2o integration work has been progres
Just figured I would say this before anybody asked.
at 11:36 PM, Sebastian Schelter wrote:
> Do we have any information when the CMS is going to work again?
>
> On 04/23/2014 08:29 AM, Ted Dunning (JIRA) wrote:
>
>>
>> [ https://issues.apache.org/jira/browse/MAHOUT-1468?page=
>> com.atlassian.jira.plugin.
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Ted Dunning commented on MAHOUT-1468:
-
Maxim,
Nice work. Good descrip
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Ted Dunning commented on MAHOUT-1518:
-
For what it is worth, if data frames a
Well if it is easy to convert I suppose it only costs memory.
Sent from my iPhone
> On Apr 22, 2014, at 11:32, "Dmitriy Lyubimov (JIRA)" wrote:
>
>
>[
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Ted Dunning commented on MAHOUT-1518:
-
[~ssc]
I would hope that the data frame
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Ted Dunning commented on MAHOUT-1485:
-
[~ssc]
Could be.
[~yash...@gmail.com]
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Ted Dunning commented on MAHOUT-1489:
-
[~dlie...@gmail.com]
Why do we even nee
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Ted Dunning commented on MAHOUT-1489:
-
For new modules that really can't m
Although they say "basic service".
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Ted Dunning commented on MAHOUT-1520:
-
The problem is not that the links
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Ted Dunning commented on MAHOUT-1485:
-
Yash,
This document is describing the
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Ted Dunning commented on MAHOUT-1518:
-
[~pfarrell]
What do you think of the
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Ted Dunning commented on MAHOUT-1518:
-
I would be dubious of file format
gt; - More
> 2.
>*#asfinfra IRC Bot* @infrabot <https://twitter.com/infrabot> Apr
> 16<https://twitter.com/infrabot/status/456383615065001984>
>
>Correction: The server that is down is the *buildbot* master,
> *buildbot*slaves are offline inc.
rabot <https://twitter.com/infrabot>
We currently have an issue with one of our servers that hosts build
slaves. Including the CMS. We are investigating. --
On Sun, Apr 20, 2014 at 8:18 AM, Ted Dunning wrote:
>
> The build-bot machine has had miserable stability lately.
&g
The build-bot machine has had miserable stability lately.
On Sun, Apr 20, 2014 at 8:14 AM, Andrew Musselman <
andrew.mussel...@gmail.com> wrote:
> Filed https://issues.apache.org/jira/browse/INFRA-7604
>
>
>
>
> On Sun, Apr 20, 2014 at 8:09 AM, Andrew Musselman <
> andrew.mussel...@gmail.com>
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https://issues.apache.org/jira/browse/MAHOUT-1468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13972316#comment-13972316
]
Ted Dunning commented on MAHOUT-1468:
-
Maxim,
That is fantastic.
> Creatin
Manoj,
Sounds like a fair trade there.
Hopefully, you would consider upgrading if we get Andy's code ported to the
DSL or if we incorporate the h2o random forest implementation.
On Tue, Apr 15, 2014 at 7:51 PM, Manoj Awasthi wrote:
> > * remove Random Forest as we cannot even answer questio
Well... I think it is an issue that has to do with figuring out how to
*avoid* import and export as much as possible.
On Tue, Apr 15, 2014 at 6:36 PM, Pat Ferrel wrote:
> Which is why it’s an import/export issue.
>
> On Apr 15, 2014, at 5:48 PM, Ted Dunning wrote:
>
> On Tue,
On Tue, Apr 15, 2014 at 10:58 AM, Pat Ferrel wrote:
> As to the statement "There is not, nor do i think there will be a way to
> run this stuff with CLI” seems unduly misleading. Really, does anyone
> second this?
>
> There will be Scala scripts to drive this stuff and yes even from the CLI.
> Do
[
https://issues.apache.org/jira/browse/MAHOUT-1510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13970281#comment-13970281
]
Ted Dunning commented on MAHOUT-1510:
-
[~yxjiang]
Hopefully we can be much
[
https://issues.apache.org/jira/browse/MAHOUT-1439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969186#comment-13969186
]
Ted Dunning commented on MAHOUT-1439:
-
@nimartin
That would be SOOO hel
On Sun, Apr 13, 2014 at 10:16 AM, Dmitriy Lyubimov wrote:
> +1, but more importantly, reject any new author who doesn't agree to
> explicitly plegdge a multi-year support.
>
I am a little bit negative about this requirement. My feeling is that it
will wind up with accepting naive optimists (the
On Sun, Apr 13, 2014 at 10:16 AM, Dmitriy Lyubimov wrote:
> > * move the MR algorithms into a separate maven module
> You mean, move them out of mahout-core? So the core is for single machine
> stuff only? Plus utils? We probably need to refactor core so there's no
> core at all it seems. Our c
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