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Artem Kalchenko commented on SPARK-13964: ----------------------------------------- How about adding hashing for quadratic features like in Vowpal Wabbit: [https://gist.github.com/luoq/b4c374b5cbabe3ae76ffacdac22750af] > Feature hashing improvements > ---------------------------- > > Key: SPARK-13964 > URL: https://issues.apache.org/jira/browse/SPARK-13964 > Project: Spark > Issue Type: Umbrella > Components: ML, MLlib > Reporter: Nick Pentreath > Priority: Minor > > Investigate improvements to Spark ML feature hashing (see e.g. > http://scikit-learn.org/stable/modules/generated/sklearn.feature_extraction.FeatureHasher.html#sklearn.feature_extraction.FeatureHasher). -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org