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[SPARK-27377] Upgrade YARN to 3.1.2+ to support GPU - Spark - [issue]
...This task should be covered by SPARK-23710. Just a placeholder here....    Author: Xiangrui Meng , 2019-05-16, 14:28
[SPARK-27379] YARN passes GPU info to Spark executor - Spark - [issue]    Author: Xiangrui Meng , 2019-05-16, 14:29
[SPARK-1924] Make local:/ scheme work in more deploy modes - Spark - [issue]
...A resource marked "local:/" is assumed to be available on the local file system of every node. In such case, no data copying over network should happen. I tested different deploy modes in v1...    Author: Xiangrui Meng , 2019-05-21, 04:15
[SPARK-10078] Vector-free L-BFGS - Spark - [issue]
...This is to implement a scalable version of vector-free L-BFGS ( document:    Author: Xiangrui Meng , 2019-05-21, 04:15
[SPARK-10678] Specialize PrefixSpan for single-item patterns - Spark - [issue]
...We assume the input itemsets are multi-item in PrefixSpan, e.g., (ab)(cd). In some use cases, all itemsets are single-item, e.g., abcd. In this case, our implementation has overhead remember...    Author: Xiangrui Meng , 2019-05-21, 04:13
[SPARK-1359] SGD implementation is not efficient - Spark - [issue]
...The SGD implementation samples a mini-batch to compute the stochastic gradient. This is not efficient because examples are provided via an iterator interface. We have to scan all of them to ...    Author: Xiangrui Meng , 2019-05-21, 04:14
[SPARK-8515] Improve ML attribute API - Spark - [issue]
...In 1.4.0, we introduced ML attribute API to embed feature/label attribute info inside DataFrame's schema. However, the API is not very friendly to use. We should re-visit this API and see ho...    Author: Xiangrui Meng , 2019-05-21, 04:12
[SPARK-17716] Hidden Markov Model (HMM) - Spark - [issue]
...Had an offline chat with Runxin Li, who implemented HMM on Spark at I asked him to list popular HMM applications, describe p...    Author: Xiangrui Meng , 2019-05-21, 04:14
[SPARK-5535] Add parameter for storage levels - Spark - [issue]
...Add a special parameter type for storage levels that takes the string representation of StorageLevels.This value can be used when ML algorithms persist data internally.Specifically, add a ne...    Author: Xiangrui Meng , 2019-05-21, 04:15
[SPARK-7290] Add StringVectorizer - Spark - [issue]
...`StringVectorizer` maps a String column into a vector column with binary values. The output should be the same as chaining `StringIndexer` and `OneHotEncoder`....    Author: Xiangrui Meng , 2019-05-21, 04:11