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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/08/06 22:49:04 UTC
[jira] [Assigned] (SPARK-9704) Make some ML APIs public: VectorUDT,
Identifiable, ProbabilisticClassifier
[ https://issues.apache.org/jira/browse/SPARK-9704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-9704:
-----------------------------------
Assignee: Apache Spark (was: Joseph K. Bradley)
> Make some ML APIs public: VectorUDT, Identifiable, ProbabilisticClassifier
> --------------------------------------------------------------------------
>
> Key: SPARK-9704
> URL: https://issues.apache.org/jira/browse/SPARK-9704
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Joseph K. Bradley
> Assignee: Apache Spark
>
> This JIRA is for making several ML APIs public to make it easier for users to write their own Pipeline stages.
> Issue brought up by [~eronwright]. Descriptions below copied from [http://apache-spark-developers-list.1001551.n3.nabble.com/Make-ML-Developer-APIs-public-post-1-4-td13583.html].
> We plan to make these APIs public in Spark 1.5. However, they will be marked DeveloperApi and are *very likely* to be broken in the future.
> * VectorUDT: To define a relation with a vector field, VectorUDT must be instantiated.
> * Identifiable trait: The trait generates a unique identifier for the associated pipeline component. Nice to have a consistent format by reusing the trait.
> * ProbabilisticClassifier. Third-party components should leverage the complex logic around computing only selected columns.
> We will not yet make these public:
> * SchemaUtils: Third-party pipeline components have a need for checking column types and appending columns.
> ** This will probably be moved into Spark SQL. Users can copy the methods into their own code as needed.
> * Shared Params (HasLabel, HasFeatures): This is covered in [SPARK-7146] but reiterating it here.
> ** We need to discuss whether these should be standardized public APIs. Users can copy the traits into their own code as needed.
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