I just implemented one based on the BSP model, it is easy to adapt to the MapReduce style. If you think it is worth trying, I can do it.
2013/6/6 Ankur Gupta <[email protected]> > I have previously worked with java, and Mahout is one project where I would > love to contribute, be it in Java. > > On Thu, Jun 6, 2013 at 6:49 PM, Robin Anil <[email protected]> wrote: > > > Ankur you will be pleasantly surprised how easy it is to develop an > > algorithm using Mahout's vector classes. > > > > Robin Anil | Software Engineer | +1 312 869 2602 | Google Inc. > > > > > > On Thu, Jun 6, 2013 at 2:39 PM, Ted Dunning <[email protected]> > wrote: > > > > > We currently do not have any C++ code. > > > > > > The build complexity and maintenance and portability issues probably > > > outweigh any advantages that I see at this time. > > > > > > We would love to have you contribute, but for now I think it is > > > safest/easiest to assume Java. > > > > > > > > > On Thu, Jun 6, 2013 at 11:14 AM, Ankur Gupta <[email protected] > > > >wrote: > > > > > > > Hi > > > > I want to contribute to mahout but one thing that holds me back is > > that I > > > > want to develop in C++ (It is just the comfort level). Is there any > > part > > > of > > > > mahout which is developed in C++ or can be developed in C++. If so > > kindly > > > > let me know so that I can start working on understanding that and > soon > > > > start contributing. > > > > > > > > Thanks & Regards, > > > > Ankur > > > > > > > > > > > > > > > > On Thu, Jun 6, 2013 at 1:20 PM, Ted Dunning <[email protected]> > > > wrote: > > > > > > > > > No. > > > > > > > > > > Mahout doesn't have any multi-level neural network implementation > at > > > this > > > > > time. > > > > > > > > > > > > > > > > > > > > On Jun 4, 2013, at 4:49 PM, Mimi Tam wrote: > > > > > > > > > > > I'd like to phrase the question a bit differently. > > > > > > > > > > > > Does Mahout have a neural network algorithm (did it adopt > Neuroph's > > > or > > > > > native)? > > > > > > > > > > > > Thanks. > > > > > > > > > > > > > > > > > > -----Original Message----- From: Mimi Tam > > > > > > Sent: Tuesday, June 04, 2013 10:08 AM > > > > > > To: [email protected] > > > > > > Subject: Question on Mahout (adopted FANN libraries?) if I may... > > > > > > > > > > > > Sorry, I am a late comer. > > > > > > > > > > > > Did Mahout/Mahout-36 [GSOC] Proposal to implement Neural Network > > with > > > > > > backpropagation learning on Hadoop ever implemented and is part > of > > > > Mahout > > > > > > now? > > > > > > > > > > > > Is this using the FANN libraries? > > > > > > > > > > > > Many Thanks...Mimi > > > > > > > > > > > > > > > > > > -----Original Message----- From: Robin Anil (JIRA) > > > > > > Sent: Tuesday, June 04, 2013 9:51 AM > > > > > > To: [email protected] > > > > > > Subject: [jira] [Updated] (MAHOUT-1240) Randomized testing and > > > > > Serialization > > > > > > of NonZeros > > > > > > > > > > > > > > > > > > [ > > > > > > > > > > > > > > > > > > > > > https://issues.apache.org/jira/browse/MAHOUT-1240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel > > > > > > ] > > > > > > > > > > > > Robin Anil updated MAHOUT-1240: > > > > > > ------------------------------- > > > > > > > > > > > > Status: Patch Available (was: Open) > > > > > > > > > > > >> Randomized testing and Serialization of NonZeros > > > > > >> ------------------------------------------------ > > > > > >> > > > > > >> Key: MAHOUT-1240 > > > > > >> URL: > > > https://issues.apache.org/jira/browse/MAHOUT-1240 > > > > > >> Project: Mahout > > > > > >> Issue Type: Bug > > > > > >> Reporter: Robin Anil > > > > > >> Assignee: Robin Anil > > > > > >> Fix For: 0.8 > > > > > >> > > > > > >> Attachments: MAHOUT-1240.patch > > > > > >> > > > > > >> > > > > > >> Currently the nonZero iterator does not guarantee nonZero > > iteration > > > > for > > > > > certain vectors (RASV, SASV) for performance reason. However vector > > > view > > > > > iterator adds a zero check.. To be correct we have to either remove > > the > > > > > check or do correct non zero serialization everywhere. However this > > > means > > > > > going over the vectors in two passes. Given that is pretty fast > > > already, > > > > I > > > > > am fixing the logic bug. We can tackle the speed up for the next > > > release. > > > > > >> This also adds a randomized test for serialization that catches > > all > > > > > such bugs. > > > > > > > > > > > > -- > > > > > > This message is automatically generated by JIRA. > > > > > > If you think it was sent incorrectly, please contact your JIRA > > > > > > administrators > > > > > > For more information on JIRA, see: > > > > > http://www.atlassian.com/software/jira > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > Ankur Gupta, > Software Engineer > Samsung India Software Operations Pvt. Ltd. > Bangalore, Karnataka > India > -- ------ Yexi Jiang, ECS 251, [email protected] School of Computer and Information Science, Florida International University Homepage: http://users.cis.fiu.edu/~yjian004/
