[GitHub] spark issue #21695: Maintining an order

2018-07-02 Thread tygert
Github user tygert commented on the issue: https://github.com/apache/spark/pull/21695 As requested, I can comment here: the issue cited is indeed a problem, and is fixed in https://github.com/hl475/svd/pull/1

[GitHub] spark issue #16556: [SPARK-19184][MLlib] Improve numerical stability for met...

2017-01-13 Thread tygert
Github user tygert commented on the issue: https://github.com/apache/spark/pull/16556 What do you think, @srowen and @hl475, should this entail modifying Breeze in order to leverage LAPACK, or should this bug fix get accepted as it stands? --- If your project is set up for it, you

[GitHub] spark issue #16556: [SPARK-19184][MLlib] Improve numerical stability for met...

2017-01-12 Thread tygert
Github user tygert commented on the issue: https://github.com/apache/spark/pull/16556 Maybe @hl475 could add his remark about how "we don't use LAPACK here since there is no pivoted QR in LAPACK that stops when the rank is exhausted" to the inline comments he h