I don't quite understand why putting linear constraints can promote
orthogonality. For the interfaces, if the subproblem is determined by
Y^T Y and Y^T b for each iteration, then the least squares solver, the
non-negative least squares solver, or your convex solver is simply a
function
(A, b) -> x
Hi Xiangrui,
For orthogonality properties in the factors we need a constraint solver
other than the usuals (l1, upper and lower bounds, l2 etc)
The interface of constraint solver is standard and I can add it in mllib
optimization
But I am not sure how will I call the gpl licensed ipm solver
Hi Deb,
Why do you want to make those methods public? If you only need to
replace the solver for subproblems. You can try to make the solver
pluggable. Now it supports least squares and non-negative least
squares. You can define an interface for the subproblem solvers and
maintain the IPM solver a
I would appreciate seeing the specs you came up with as well but don't need
to particularly quickly. I'll wait until seeing the PR to comment on the
specifics, but have some questions about the thought process that went into
configuring the hardware.
Is the idea to see how you spec'd out memory/d
Stephen,
We are working thru Dell configurations; would be happy to review your
diagrams and offer feedback from our experience. Let me know the URLs.
Cheers
On Thu, Jun 5, 2014 at 2:51 PM, Stephen Watt wrote:
> Hi Folks
>
> My name is Steve Watt and I work in the CTO Office at Red Hat. I'
Hi,
We are adding a constrained ALS solver in Spark to solve matrix
factorization use-cases which needs additional constraints (bounds,
equality, inequality, quadratic constraints)
We are using a native version of a primal dual SOCP solver due to its small
memory footprint and sparse ccs matrix c
I'm in a situation where I have two compute nodes in Amazon EC2 and a third
node that is used to just execute queries. The third node is not part of the
cluster. It's also configured slightly differently. That is, the third node
runs Ubuntu 14.04 while the two cluster nodes run CentOS.
I launch p
Hi Folks
My name is Steve Watt and I work in the CTO Office at Red Hat. I've recently
spent quite a bit of time designing single rack and multi-rack infrastructures
for Spark for our own hardware procurement at Red Hat and I thought the
diagrams and server specs for both Dell and HP would be us
Hi,
I’ve tried running the CassandraTest example against several versions of
Cassandra and I can’t get it to work. I’m wondering if I’m doing something
wrong, or if they simply don’t work. Please help!
http://stackoverflow.com/q/24069039/503826
Much Thanks!
Tim Kellogg
Sr. Software Engineer,
You can modify project/SparkBuild.scala and build Spark with sbt instead of
Maven.
On Jun 5, 2014, at 12:36 PM, Meisam Fathi wrote:
> Hi community,
>
> How should I change sbt to compile spark core with a different version
> of Scala? I see maven pom files define dependencies to scala 2.10.4.
Awesome, thanks for testing!
On Thu, Jun 5, 2014 at 1:30 PM, dataginjaninja
wrote:
> I can confirm that the patch fixed my issue. :-)
>
>
>
> -
> Cheers,
>
> Stephanie
> --
> View this message in context:
> http://apache-spark-developers-list.1001551.n3.nabble.com/Timestamp-support-in-v1-0-
I can confirm that the patch fixed my issue. :-)
-
Cheers,
Stephanie
--
View this message in context:
http://apache-spark-developers-list.1001551.n3.nabble.com/Timestamp-support-in-v1-0-tp6850p6948.html
Sent from the Apache Spark Developers List mailing list archive at Nabble.com.
Hi community,
How should I change sbt to compile spark core with a different version
of Scala? I see maven pom files define dependencies to scala 2.10.4. I
need to override/ignore the maven dependencies and use Scala
virtualized, which needs these lines in a build.sbt file:
scalaOrganization := "
I that something that documentation on the method can solve?
On Thu, Jun 5, 2014 at 10:47 AM, Reynold Xin wrote:
> I think the main concern is this would require scanning the data twice, and
> maybe the user should be aware of it ...
>
>
> On Thu, Jun 5, 2014 at 10:29 AM, Andrew Ash wrote:
>
>
I think the main concern is this would require scanning the data twice, and
maybe the user should be aware of it ...
On Thu, Jun 5, 2014 at 10:29 AM, Andrew Ash wrote:
> I have a use case that would greatly benefit from RDDs having a .scanLeft()
> method. Are the project developers interested
I have a use case that would greatly benefit from RDDs having a .scanLeft()
method. Are the project developers interested in adding this to the public
API?
Looking through past message traffic, this has come up a few times. The
recommendation from the list before has been to implement a paralle
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