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From "Yun Ni (JIRA)" <>
Subject [jira] [Commented] (SPARK-5992) Locality Sensitive Hashing (LSH) for MLlib
Date Mon, 17 Oct 2016 06:47:58 GMT


Yun Ni commented on SPARK-5992:

Yes, I do have comparison with full scan. Usually kNN with 1 hash function does not work well,
so I enabled OR-amplification with multiple hash functions. You can set the number of hash
functions using "outputDim".

> Locality Sensitive Hashing (LSH) for MLlib
> ------------------------------------------
>                 Key: SPARK-5992
>                 URL:
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib
>            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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