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Minhash Token Filter

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Minhash Token Filter

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A token filter of type min_hash hashes each token of the token stream and divides the resulting hashes into buckets, keeping the lowest-valued hashes per bucket. It then returns these hashes as tokens.

The following are settings that can be set for a min_hash token filter.

Setting	Description
`hash_count`	The number of hashes to hash the token stream with. Defaults to `1`.
`bucket_count`	The number of buckets to divide the minhashes into. Defaults to `512`.
`hash_set_size`	The number of minhashes to keep per bucket. Defaults to `1`.
`with_rotation`	Whether or not to fill empty buckets with the value of the first non-empty bucket to its circular right. Only takes effect if hash_set_size is equal to one. Defaults to `true` if bucket_count is greater than one, else `false`.

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