object BloomFilter extends Serializable
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- def optimalSize(expectedNumItems: Double, falsePositiveRate: Double): (Int, Int)
Returns the optimal number of buckets (m) and hash functions (k)
Returns the optimal number of buckets (m) and hash functions (k)
The formula is:
val m = ceil(-(n * log(p)) / log(pow(2.0, log(2.0)))) val k = round(log(2.0) * m / n)
- def optimallySized[T](expectedNumItems: Double, falsePositiveRate: Double): BloomFilter[T]
Returns a BloomFilter that is optimally sized for the expected number of inputs and false positive rate
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