matrix computation in spark

2014-11-17 Thread liaoyuxi
Hi, Matrix computation is critical for algorithm efficiency like least square, Kalman filter and so on. For now, the mllib module offers limited linear algebra on matrix, especially for distributed matrix. We have been working on establishing distributed matrix computation APIs based on data

Re: matrix computation in spark

2014-11-17 Thread Zongheng Yang
There's been some work at the AMPLab on a distributed matrix library on top of Spark; see here [1]. In particular, the repo contains a couple factorization algorithms. [1] https://github.com/amplab/ml-matrix Zongheng On Mon Nov 17 2014 at 7:34:17 PM liaoyuxi liaoy...@huawei.com wrote: Hi,

Re: matrix computation in spark

2014-11-17 Thread 顾荣
Hey Yuxi, We also have implemented a distributed matrix multiplication library in PasaLab. The repo is host on here https://github.com/PasaLab/marlin . We implemented three distributed matrix multiplication algorithms on Spark. As we see, communication-optimal does not always means the

答复: matrix computation in spark

2014-11-17 Thread liaoyuxi
. 发件人: Zongheng Yang [mailto:zonghen...@gmail.com] 发送时间: 2014年11月18日 11:37 收件人: liaoyuxi; d...@spark.incubator.apache.org 抄送: Shivaram Venkataraman 主题: Re: matrix computation in spark There's been some work at the AMPLab on a distributed matrix library on top of Spark; see here [1]. In particular

Re: matrix computation in spark

2014-11-17 Thread Reza Zadeh
Hi Yuxi, We are integrating the ml-matrix from the AMPlab repo into MLlib, tracked by this JIRA: https://issues.apache.org/jira/browse/SPARK-3434 We already have matrix multiply, but are missing LU decomposition. Could you please track that JIRA, once the initial design is in, we can sync on how