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From "Joseph K. Bradley (JIRA)" <>
Subject [jira] [Commented] (SPARK-5992) Locality Sensitive Hashing (LSH) for MLlib
Date Fri, 05 Jun 2015 19:40:01 GMT


Joseph K. Bradley commented on SPARK-5992:

I'm just noting here that [] and I discussed the design doc.  The current
plan is to have these implemented under ml.feature, with 2 types of UnaryTransformers:
* Vector -> T: hash feature vector to some other type (Vector, Int, etc.)
* Vector -> Double: compare feature vector with a fixed base Vector, and return similarity

> Locality Sensitive Hashing (LSH) for MLlib
> ------------------------------------------
>                 Key: SPARK-5992
>                 URL:
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>    Affects Versions: 1.4.0
>            Reporter: Joseph K. Bradley
> Locality Sensitive Hashing (LSH) would be very useful for ML.  It would be great to discuss
some possible algorithms here, choose an API, and make a PR for an initial algorithm.

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