Congrats!
2018-07-19 9:31 GMT+02:00 Peng Zhang :
> Congrats Andrew!
>
> On Thu, Jul 19, 2018 at 04:01 Andrew Musselman >
> wrote:
>
> > Thanks Andy, looking forward to it! Thank you too for your support and
> > dedication the past two years; here's to continued progress!
> >
> > Best
> > Andrew
Please use a recent version of mahout. 0.4 and 0.5 are totally outdated.
-s
On 06/25/2014 09:05 AM, seabiscuit08 wrote:
> Hi everyone, i am new in mahout.
> Our hadoop cluster is hadoop-0.20.2 ,i try out mahout-distribution-0.4 lda
> function, and it works well. But It can't inference new documen
Its also not a good idea to put the vectors into a hashset, i don't think
we have equals and hashcode correctly implemented for that
Am 16.06.2014 18:21 schrieb "Ted Dunning" :
> Patrice,
>
> This sounds like a classpath problem more than code error. Are you sure
> that you can run any program th
thought of moving to Mahout.
However, it seems like, for now, it's better to go with the single machine
implementation.
Thanks for your suggestions,
Warunika
On Fri, Jun 6, 2014 at 3:36 PM, Sebastian Schelter wrote:
1M ratings take up something like 20 megabytes. This is a datasize whe
same performance
level.
What is the average running time for the Mahout distributed recommendation
job on 1 million ratings? Does it usually take more than 1 minute?
Thanks in advance,
Warunika
On Fri, Jun 6, 2014 at 2:42 PM, Sebastian Schelter wrote:
You should not use Hadoop for such a
You should not use Hadoop for such a tiny dataset. Use the
GenericItemBasedRecommender on a single machine in Java.
--sebastian
On 06/06/2014 11:10 AM, Warunika Ranaweera wrote:
Hi,
I am using Mahout's recommenditembased algorithm on a data set with nearly
10,000 (implicit) user ratings. This
I have added the threshold merely as a way to increase the performance
of RowSimilarityJob. If a threshold is given, some item pairs don't need
to be looked at. A simple example is if you use cooccurrence count as
similarity measure, and set a threshold of n cooccurrences, than any
pair contain
Could be a bug introduced by a recent modification of the Confusion
matrix. Are you using trunk? Can you provide a patch that fixes the issue?
Best,
Sebastian
On 05/25/2014 05:05 PM, Michael Christopher wrote:
Hi
With the Confusion Matrix below I get a Kappa value of 0,8023. Actually
it shou
I don't think you should use RowSimilarity job for that case, if you
only have 6 columns.
Can you tell us a little bit about the data and what problem your are
trying to solve?
--sebastian
On 05/23/2014 09:03 PM, Suneel Marthi wrote:
I had seen this issue too with RSJ until 0.8. Switch to
We should add these links to the LR page on the website.
--s
On 05/23/2014 03:20 PM, Ted Dunning wrote:
Ahh... my error then.
Happily, Dmitriy and others have provided the requisite links.
On Thu, May 22, 2014 at 11:50 PM, namit maheshwari <
namitmaheshwa...@gmail.com> wrote:
No I didnt fin
Hi Meethu,
K-Means has not been ported to the spark bindings DSL yet. You have to
used the MapReduce implementation.
Best,
Sebastian
On 05/22/2014 11:05 AM, MEETHU MATHEW wrote:
Hi,
I am a beginner in MAHOUT. I have run kmeans clustering for various datasets.
Can anyone tell me how to run
ere is the error in this code?
Thank you.
On 05/03/14 16:42, Sebastian Schelter wrote:
You should try the
org.apache.mahout.cf.taste.impl.recommender.GenericBooleanPrefUserBasedRecommender
which has been built to handle such data.
Best,
Sebastian
On 05/03/2014 04:34 PM, Alessandro Sugli
Hi Jossef,
You have to vectorize and normalize your data. The input for naive bayes
is a sequencefile containing a Text object as key (your label) and a
VectorWritable that holds a vector with the data.
Instructions to run NaiveBayes can be found here:
https://mahout.apache.org/users/classif
mmendation appropriately."
On 05/03/14 16:25, Sebastian Schelter wrote:
Hi Allessandro,
what result do you expect and what do you get? Can you give a concrete
example?
--sebastian
On 05/03/2014 12:11 PM, Alessandro Suglia wrote:
Good morning,
I've tried to create a recommender system using M
Hi Allessandro,
what result do you expect and what do you get? Can you give a concrete
example?
--sebastian
On 05/03/2014 12:11 PM, Alessandro Suglia wrote:
Good morning,
I've tried to create a recommender system using Mahout in an implicit
feedback situation. What I'm trying to do is explai
d it who promised to maintain it
and has not been heard from.
On Mon, Apr 28, 2014 at 2:19 AM, Sebastian Schelter
wrote:
Hi,
I'm resending this mail to also include the users list. To wrap up: We
currently have a discussion whether our frequent pattern mining package
should stay in the code
pr 28, 2014 at 2:19 AM, Sebastian Schelter
wrote:
Hi,
I'm resending this mail to also include the users list. To wrap up: We
currently have a discussion whether our frequent pattern mining package
should stay in the codebase. The original author suggested to remove the
original implementation
apease the browsers under https
handshake. I am not sure what would be associated with that, I am not sure
if mathjax is solely static content or it is an actual server doing
something.
On Sun, Apr 27, 2014 at 12:41 AM, Sebastian Schelter
wrote:
What if we store a copy of the js file on our site and
M, Michael Wechner wrote:
what is the alternative and if one would still want to use the "frequent
pattern mining code" in the future, how
would this be possible otherwise?
Thanks
Michael
Am 28.04.14 08:19, schrieb Sebastian Schelter:
Hi,
I'm resending this mail to also include t
Hi,
I'm resending this mail to also include the users list. To wrap up: We
currently have a discussion whether our frequent pattern mining package
should stay in the codebase. The original author suggested to remove the
original implementation and maybe retain the FPGrowth2 implementation.
I
What if we store a copy of the js file on our site and also serve it via
https?
On 04/27/2014 05:34 AM, Pat Ferrel wrote:
Often CMSs have a way to configure https access to be used only for password or
other secure areas of the site. No idea if the Apache CMS does this but worth
asking. If th
Hi,
this is to announce that the Project Management Committee (PMC) for
Apache Mahout has asked Pat Ferrel to become committer and we are
pleased to announce that he has accepted.
Being a committer enables easier contribution to the project since in
addition to posting patches on JIRA it als
patch before. I found the following page
http://mahout.apache.org/developers/patch-check-list.html
is that description enough for applying a patch?
On Sat, Apr 19, 2014 at 2:23 AM, Sebastian Schelter wrote:
Mario,
could you check whether the patch from https://issues.apache.org/
jira/browse
I'll create a jira ticket for this, as I have a little time to work on it.
On 04/16/2014 08:15 PM, Pat Ferrel wrote:
bug in the pseudo code, should use columnIds:
val hashedCrossIndicatorMatrix = new
HashedSparseMatrix(indicatorMatrices(1), hashedDrms(0).columnIds(),
hashedDrms(1).columnI
Mario,
could you check whether the patch from
https://issues.apache.org/jira/browse/MAHOUT-1517 fixes your problem?
Best,
Sebastian
On 04/18/2014 11:03 PM, Mario Levitin wrote:
In my dataset ID's are strings so I use MemoryIDMigrator. This migrator
produces large longs.
I'm not doing any tra
Hi Mario,
this is indeed a bug. The problem is that the CF code (taste) uses long
ids, while our math library internally uses int keys.
I'll open a jira and post patch that will hopefully help you.
--sebastian
On 04/18/2014 11:03 PM, Mario Levitin wrote:
In my dataset ID's are strings so I
You can, but I'm not sure how much we can help you. Give it a try :)
On 04/18/2014 10:11 PM, Christopher Eugene wrote:
sorry I thought I replied to it :). I can ask predictionio related
questions on the list too?
On Fri, Apr 18, 2014 at 11:06 PM, Sebastian Schelter wrote:
Please rep
That is wrong, but you could use a server such as PredictionIO (which
uses Mahout internally) with PHP.
--sebastian
On 04/18/2014 09:49 PM, Christopher Eugene wrote:
@sebastian I have version 1.7. @Andrew I plan on using mahout with php
since I heard that there is a new API or am I wrong?
On
Which version do you use, it shouldn't be a problem with oracle java.
--sebastian
On 04/18/2014 09:39 PM, Christopher Eugene wrote:
Hello,
I want to install mahout on Ubuntu 14.04. I had previously tried in vain to
install on 13.10. Could the version of Java be the problem? I am compiling
from
dateItemsStrategy.html
candidateItemsStrategy,MostSimilarItemsCandidateItemsStrategy<
https://builds.apache.org/job/mahout-quality/javadoc/org/apache/mahout/cf/taste/recommender/MostSimilarItemsCandidateItemsStrategy.html
mostSimilarItemsCandidateItemsStrategy)
Am 17.04.2014 um 12:41 schrieb Sebastian Schelte
t all the information from a
mailing list search but i think a rolling FAQ would much more (1) be
likely evolve into real documentation and (2) be more easily refined . Is
that a little convincing ? If not i guess we can table the idea/// just a
thought.
On Thu, Apr 17, 2014 at 1:38 AM, Seba
The templates for the individual pages are in the svn under site/ in
markdown format. You can use an online markdown editor to approximately see
how they look like.
We don't have a better solution yet, unfortunately.
--sebastian
Am 17.04.2014 20:09 schrieb "Andrew Musselman" :
> The content of t
arItemsCandidateItemsStrategy<https://builds.apache.org/job/mahout-quality/javadoc/org/apache/mahout/cf/taste/recommender/MostSimilarItemsCandidateItemsStrategy.html>
mostSimilarItemsCandidateItemsStrategy)
Am 17.04.2014 um 12:41 schrieb Sebastian Schelter :
Hi Najum,
I think I found t
hrieb Sebastian Schelter :
Hi Najum,
I think I found the problem. Remember: Two items are similar whenever at least one user
interacted with both of them ("the items co-occur").
In the movielens dataset this is true for almost all pairs of items,
unfortunately. From 3076 items, more
almost same results. Although what I also don´t understand is, why am I
getting different RecommendItems?
That really frustrates me…
You can find the Java file in the attachment.
Greetings from Germany,
Najum
Am 17.04.2014 um 11:44 schrieb Sebastian Schelter mailto:s...@apache.org>>:
Yes, ju
Yes, just to make sure the problem is in the mahout code and not in the
surrounding environment.
On 04/17/2014 11:43 AM, Najum Ali wrote:
@Sebastian
What do u mean with a standalone recommender? A simple offline java main
program?
Am 17.04.2014 um 11:41 schrieb Sebastian Schelter :
Could
og are also item-based using pre computed similarity
The last log is the userbased recommender using pearson
Look at the huge time difference!
Am 17.04.2014 um 11:23 schrieb Sebastian Schelter mailto:s...@apache.org>>:
Najum,
this is really strange, feeding an ItemBased Recommender
Najum,
this is really strange, feeding an ItemBased Recommender with
precomputed similarities should give you superfast recommendations.
Are you sure that the precomputation is done only once and not in every
request?
--sebastian
On 04/17/2014 11:17 AM, Najum Ali wrote:
Hi guys,
I have c
Hi Najum,
please write a new mail to ask a question and don't reply to an
unrelated thread --> https://people.apache.org/~hossman/#threadhijack
If you write a new mail, I'm sure we can help you with your recommender
problem. Can you give us a few more details, such as the similarity that
you
Hi Jay,
I'm not sure what the benefit of this approach is, people can already
post their questions to the mailinglist and get answers here, why would
a google doc be helpful?
--sebastian
On 04/16/2014 09:31 PM, Jay Vyas wrote:
hi mahout... i finally thought of a really easy way of ad-hoc im
Hi,
this is another reminder that we still have to finish our documentation
improvements! The website looks shiny now and there have been lots of
discussions about new directions but we still have some work todo in
cleaning up webpages. We should especially make sure that the examples work.
Yes, its a unique identifier for a user.
--sebastian
On 04/11/2014 04:41 PM, Mike Summers wrote:
Does the userId of a preferenceArray need to be unique across all entries
in a FastByIDMap?
I'm comparing two types of objects that contain the same set of traits
however it's possible that the use
It seems there is a problem with your hdfs, how did you configure that?
--sebastian
On 04/08/2014 07:23 PM, Neetha wrote:
Hi,
I am trying to run Mahout -kmeans clustering on hadoop, but I am getting
this error,
hduser3@ubuntu:/usr/local/hadoop-1.0.1/mahout3$ bin/mahout seqdirectory \-i
maho
response.
Could you or anyone point me to the mahout classes where this is being
solved?
thank you guys
reinis
On 08.04.2014 10:27, Sebastian Schelter wrote:
I don't know a good name for that. The problems is that a quadratic
amount of pairs needs to be emitted here. In our collabor
I don't know a good name for that. The problems is that a quadratic
amount of pairs needs to be emitted here. In our collaborative filtering
code, we solve this through downsampling.
--sebastian
On 04/08/2014 10:08 AM, Reinis Vicups wrote:
Hi,
this is not mahout question directly, but I figu
The top 3 recommendations "based on videos you liked" are very good!
Nice job.
On 04/06/2014 07:26 PM, Pat Ferrel wrote:
After having integrated several versions of the Mahout and Myrrix recommenders
at fairly large scale. I was interested in solving three problems that these
did not directl
ke too many features, it doesn't much
hurt
so
you should always take as many as you can compute.
On Thu, Mar 27, 2014 at 6:33 AM, Sebastian Schelter <
s...@apache.org>
wrote:
Hi,
does anyone know of a principled approach of choosing the number
of
features for ALS (other than c
Jay,
which version of Mahout are you using? Have you tried to explicitly set
the temp path?
--sebastian
On 03/29/2014 01:52 AM, Jay Vyas wrote:
Hi again mahout:
Im wrapping a distributed recommender like this:
https://raw.githubusercontent.com/jayunit100/bigpetstore/master/src/main/java/or
Hi Jay,
there's not much documentation unfortunately. We're in the process of
creating that however. We removed the pseudo-distributed recommender,
mainly because nobody ever used it. There are two research papers that
could help you with understanding the other two distributed recommenders:
Hi,
does anyone know of a principled approach of choosing the number of
features for ALS (other than cross-validation?)
--sebastian
nd am not sure if it was there in 0.8. I vaguely
remember removing it in 0.9 based on a conversation with Manuel on user@.
Manuel, if u could chime in here.
On Monday, March 24, 2014 9:44 AM, Sebastian Schelter
wrote:
The webapp in Mahout does not offer much functionality. If you'd l
inkedin.com/in/bhargavgolla>
| Website <http://www.bhargavgolla.com/>
On Mon, Mar 24, 2014 at 2:12 AM, Sebastian Schelter wrote:
Hi Bhargav,
you are right, the content on the page is outdated and contains some
errors. I've created a jira ticket to fix this [1].
Thank you fo
Hi Bhargav,
you are right, the content on the page is outdated and contains some
errors. I've created a jira ticket to fix this [1].
Thank you for reporting the problem!
[1] https://issues.apache.org/jira/browse/MAHOUT-1485
On 03/24/2014 04:41 AM, Bhargav Golla wrote:
Hi
I was wondering i
t when creating filesystem instances by using
the two argument get(...). it's time to update it filesystem 2.0 Apis. Can
you file a Jira for this ? If not I will :)
On Mar 16, 2014, at 12:37 PM, Sebastian Schelter wrote:
I've also encountered a similar error once. It's really just the
, "Sebastian Schelter" wrote:
Hi,
It's great to see a lot of work being spent on cleaning up the website. I
think we have already done a great job here, but there are still a few more
pages that need work.
I created a jira issue for every single page that needs some work, would
b
Hi,
It's great to see a lot of work being spent on cleaning up the website.
I think we have already done a great job here, but there are still a few
more pages that need work.
I created a jira issue for every single page that needs some work, would
be awesome if we could find enough voluntee
I've also encountered a similar error once. It's really just the
FileSystem.get call that needs to be modified. I think its a good idea
to walk through the codebase and refactor this where necessary.
--sebastian
On 03/16/2014 05:16 PM, Andrew Musselman wrote:
Another wild guess, I've had iss
to
appear to be stupid asking how to update the documentation (my bad - not
anyone else). Now I know that it was not possible unless I was a commiter.
Who should I send my scripts to, or how should I proceed with a current
form of the page?
SCott
On 3/12/14, 5:02 AM, "Sebastian Schelter&qu
To my knowledge, there is no such flag for mahout. You can check
hadoop's logs for further information however.
On 03/13/2014 10:21 AM, Mahmood Naderan wrote:
Hi,
Is there any verbosity flag for hadoop and mahout commands? I can not find such
thing in the command line.
Regards,
Mahmood
Are executing maven in the topmost directory?
On 03/13/2014 10:09 AM, Kevin Moulart wrote:
I did, but then it fails because of these missing files :
https://gist.github.com/kmoulart/9524828
Kévin Moulart
2014-03-13 9:57 GMT+01:00 Sebastian Schelter :
Maven should generate the classes
01:00 Sebastian Schelter :
Those are autogenerated.
On 03/13/2014 09:05 AM, Kevin Moulart wrote:
Ok it does compile with maven in eclipse as well, but still, many imports
are not recognized in the sources :
- import org.apache.mahout.math.function.IntObjectProcedure;
- i
Those are autogenerated.
On 03/13/2014 09:05 AM, Kevin Moulart wrote:
Ok it does compile with maven in eclipse as well, but still, many imports
are not recognized in the sources :
- import org.apache.mahout.math.function.IntObjectProcedure;
- import org.apache.mahout.math.map.OpenIntLongHashMap
commiter.
Who should I send my scripts to, or how should I proceed with a current
form of the page?
SCott
On 3/12/14, 5:02 AM, "Sebastian Schelter" wrote:
Hi Pavan,
Awesome that you're willing to help. The documentation are the pages
listed under "Clustering" in
will in-turn help
me understand things better. Do we already have a Jira ticket for
organizing the cleaning up of documentation ?
Just want to be sure, that I am not stepping on pages some else has already
updated.
Thanks
Regards,
Pramit
On Wed, Mar 12, 2014 at 3:07 AM, Sebastian Schelter wrote
ll check and remove errors. or better let me know
how to proceed.
Pavan
On Mar 12, 2014 12:35 PM, "Sebastian Schelter" wrote:
Hi,
As you've probably noticed, I've put in a lot of effort over the last
days
to kickstart cleaning up our website. I've thrown out a lot
can start looking on the page myself.
Manoj
On Wed, Mar 12, 2014 at 12:33 PM, Sebastian Schelter wrote:
Hi,
As you've probably noticed, I've put in a lot of effort over the last days
to kickstart cleaning up our website. I've thrown out a lot of stuff and
have been startled by the
i ll help with clustering algorithms documentation. do send me old
documentation and i will check and remove errors. or better let me know
how to proceed.
Pavan
On Mar 12, 2014 12:35 PM, "Sebastian Schelter" wrote:
Hi,
As you've probably noticed, I've put in a lot of effort ov
lanning to keep it in the new web, I can help pointing them out
again.
Thanks a lot for your effort.
On Wed, Mar 12, 2014 at 7:03 AM, Sebastian Schelter wrote:
Hi,
As you've probably noticed, I've put in a lot of effort over the last days
to kickstart cleaning up our website. I&#x
Hi,
As you've probably noticed, I've put in a lot of effort over the last
days to kickstart cleaning up our website. I've thrown out a lot of
stuff and have been startled by the amout of outdated and incorrect
information on our website, as well as links pointing to nowhere.
I think our lack
Hi Bikash,
Have you tried adding hdfs:// to your input path? Maybe that helps.
--sebastian
On 03/11/2014 11:22 AM, Bikash Gupta wrote:
Hi,
I am running Kmeans in cluster where I am setting the configuration of
fs.hdfs.impl and fs.file.impl before hand as mentioned below
conf.set("fs.hdfs.imp
Hi Quentin,
Mahout does not have SVMs.
Best,
Sebastian
On 03/10/2014 10:38 AM, Quentin-Gabriel Thurier wrote:
Hi all,
Just few questions about the configuration of an SVM in Mahout :
- Is it possible to do a multi-class classification ?
- Which kernels are already available (linear, polynomi
I usually do try and error. Start with some very large value and do a
binary search :)
--sebastian
On 03/09/2014 01:30 PM, Mahmood Naderan wrote:
Excuse me, I added the -Xmx option and restarted the hadoop services using
sbin/stop-all.sh && sbin/start-all.sh
however still I get heap size erro
Hi Koji,
I've added a link to your article to our website:
https://mahout.apache.org/general/books-tutorials-and-talks.html
On 03/07/2014 03:29 AM, Koji Sekiguchi wrote:
> Hello,
>
> I just posted an article on Comparing Document Classification Functions
> of Lucene and Mahout.
>
> http://sole
14 22:56, Frank Scholten wrote:
Congratulations Andrew!
On Fri, Mar 7, 2014 at 6:12 PM, Sebastian Schelter wrote:
Hi,
this is to announce that the Project Management Committee (PMC) for
Apache
Mahout has asked Andrew Musselman to become committer and we are pleased
to
announce that h
Hi,
this is to announce that the Project Management Committee (PMC) for
Apache Mahout has asked Andrew Musselman to become committer and we are
pleased to announce that he has accepted.
Being a committer enables easier contribution to the project since in
addition to posting patches on JIRA
urged?
On Thursday, March 6, 2014 9:07 AM, Sebastian Schelter wrote:
Thank you very much! Could you create a jira ticket and post the links
there? That would be awesome, then we can track that this stuff gets fixed.
Best,
Sebastian
On 03/06/2014 02:58 PM, Kevin Moulart wrote:
Hi I also prefe
hat's just the ones I found in 2 minutes on the quickstart page.
Best Regards,
Kevin
2014-03-05 23:43 GMT+01:00 Sebastian Schelter :
At the moment, only committers can change the website unfortunately. If
you have a text to add, I'm happy to work it in and add your name to our
contribut
5, 2014, at 4:11 AM, Sebastian Schelter wrote:
Hi everyone,
In our latest discussion, I argued that the lack (and errors) of
documentation on our website is one of the main pain points of Mahout
atm. To be honest, I'm also not very happy with the design, especially
fonts and spacing make it super h
AllUnknownItemsCandidateItemsStrategy.
On Wed, Mar 5, 2014 at 6:46 PM, Sebastian Schelter wrote:
So both strategies seems to be effectively the same, I don't know what
the implementers had in mind when designing
AllSimilarItemsCandidateItemsStrategy.
It can take a long time to estimate preferences for all items a user do
gy
returns all items that have not been rated by the user and the
similarity metric returns a non-NaN similarity value that is with at
least one of the items preferred by the user.
Tevfik
On Wed, Mar 5, 2014 at 2:30 PM, Sebastian Schelter
wrote:
On 03/05/2014 01:23 PM, Juan José Ramos wrote:
knownItems simply returns all items that the
user has not interacted with yet.
These are two different things, although they might overlap in some
scenarios.
Best,
Sebastian
Thanks.
On Wed, Mar 5, 2014 at 10:23 AM, Sebastian Schelter wrote:
Hi Juan,
that is a good catch. CandidateIte
Hi everyone,
In our latest discussion, I argued that the lack (and errors) of
documentation on our website is one of the main pain points of Mahout
atm. To be honest, I'm also not very happy with the design, especially
fonts and spacing make it super hard to read long articles. This also
prev
Hi Juan,
that is a good catch. CandidateItemsStrategy is the right place to
implement this. Maybe we should simply extend its interface to add a
parameter that says whether to keep or remove the current users items?
We could even do this in the abstract base class then.
--sebastian
On 03/05
ted a Jira issue already.
I only use the non-hadoop part of Mahout recommender algorithms.
May be I can create a patch for that part. However, I have not done it
before, and don't know how to proceed.
On Wed, Mar 5, 2014 at 1:01 AM, Sebastian Schelter wrote:
Would you be willing to set
Would you be willing to set up a jira issue and create a patch for this?
--sebastian
On 03/04/2014 11:58 PM, Mario Levitin wrote:
I think we should introduce a new parameter for the recommend() method in
the Recommender interface that tells whether already known items should be
recommended or
I think we should introduce a new parameter for the recommend() method
in the Recommender interface that tells whether already known items
should be recommended or not.
What do you think?
Best,
Sebastian
On 03/04/2014 05:32 PM, Pat Ferrel wrote:
I’d suggest a command line option if you want
I think you should rather choose a different library that already offers
an SVM than trying to revive a 4 year old patch.
--sebastian
On 03/04/2014 08:51 AM, Amol Kakade wrote:
Hi,
I am new user of Mahout and want to run sample SVM algorithm with Mahout.
Can you please list me steps to use Mah
Hi Amol,
SVMs are not integrated in Mahout. I'd suggest you try our logistic
regression classifier instead.
Best,
Sebastian
On 03/04/2014 08:51 AM, Amol Kakade wrote:
Hi,
I am new user of Mahout and want to run sample SVM algorithm with Mahout.
Can you please list me steps to use Mahout-232-
in time.
Would the fact of adding the new preferences to new files or appending to
the existing one make any difference or does everything depends on the time
elapsed between two calls to recommender.refresh(null)?
Many thanks.
On Mon, Mar 3, 2014 at 1:18 PM, Sebastian Schelter wrote:
Hi Juan
4-03-03 15:11 GMT+01:00 Sebastian Schelter :
If you don't want to call a shell, I assume you don't want to use a Hadoop
cluster, right? In that case, you should rather try Mahout's logistic
regression classifier, which is tuned for usage on a single machine.
--sebastian
On 03/03
If you don't want to call a shell, I assume you don't want to use a
Hadoop cluster, right? In that case, you should rather try Mahout's
logistic regression classifier, which is tuned for usage on a single
machine.
--sebastian
On 03/03/2014 03:07 PM, Hollow Quincy wrote:
I am looking for simp
Hi Juan,
IIRC then FileDataModel has a parameter that determines how much time
must have been spent since the last modification of the underlying file.
You can also directly append new data to the original file.
If you want a to have a DataModel that can be concurrently updated, I
suggest yo
The output of parallelALS are two matrices U and M whose product is an
approximation of your input matrix.
The matrices are outputed as sequence files with an IntWritable as key
(the index of the row in the matrix) and a VectorWritable as value which
holds the contents of the row vector.
--s
24, 2014 at 9:27 PM, Sebastian Schelter wrote:
I overlooked that you're interested in document similarities. Sry again :)
Another way would be to read the output of RowSimilarityJob with a
o.a.m.common.iterator.sequencefile.SequenceFileDirIterable
You create a list of instances of o.a.m
difference
would be that I will write the output to a file that can be later used to
create a FileItemSimilarity.
I think that would be a very nice feature to have in the API.
Thanks again.
On Mon, Feb 24, 2014 at 9:27 PM, Sebastian Schelter wrote:
I overlooked that you're interested in doc
item.
In order to use ItemSimilarityJob for this purpose, what should be the
input I need to provide? Would it be the output of seq2sparse?
Thanks again.
On Mon, Feb 24, 2014 at 8:54 PM, Sebastian Schelter wrote:
You're right, my bad. If you don't use RowSimilar
t that the output of RowSimilarityJob can be loaded
by the FileItemSimilarity after doing the appropriate parsing. Is that
correct, or is there actually a way to load the raw output of
RowSimilarityJob into FileItemSimilarity?
Thanks.
On Mon, Feb 24, 2014 at 7:41 PM, Sebastian Schelter wrote:
The
The output of RowSimilarityJob can be loaded by the FileItemSimilarity.
--sebastian
On 02/24/2014 08:31 PM, Juan José Ramos wrote:
Is there a way to reproduce this process:
https://cwiki.apache.org/confluence/display/MAHOUT/Quick+tour+of+text+analysis+using+the+Mahout+command+line
inside Java
NaiveBayes expects a SequenceFile as input. The key is the class label
as Text, the value are the features as VectorWritable.
--sebastian
On 02/24/2014 11:51 AM, Kevin Moulart wrote:
Hi again,
I finally set my mind on going through java to make a sequence file for the
naive bayes,
but I still
You can give o.a.m.cf.taste.impl.model.jdbc.GenericJDBCDataModel a try.
If that doesn't work, you need to create a custom implementation of
AbstractJDBCDataModel which shouldn't be too hard.
--sebastian
On 02/23/2014 06:11 PM, Ahmed Kamal wrote:
Dear All ,
I just have a question. I chose to
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