Package ai.preferred.cerebro.index.builder

Class LocalitySensitiveHash

  • public class LocalitySensitiveHash
extends java.lang.Object
    This class calculate the hashcode of a vector given which set of hashing vectors it was created with.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected int dimension  
      protected int numHashBit  
      protected double[][] splitVecs  

    • Constructor Summary

      Constructors 
      Constructor Description
      LocalitySensitiveHash​(double[][] splitVecs)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      org.apache.lucene.util.BytesRef getHashBit​(double[] features)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • numHashBit

        protected final int numHashBit

      • dimension

        protected final int dimension

      • splitVecs

        protected final double[][] splitVecs

    • Constructor Detail

      • LocalitySensitiveHash

        public LocalitySensitiveHash​(double[][] splitVecs)
        Parameters:
        splitVecs - the set of hashing vectors.

    • Method Detail

      • getHashBit

        public org.apache.lucene.util.BytesRef getHashBit​(double[] features)
        Parameters:
        features - the vector to compute hashcode.
        Returns:
        the hashcode of the vector.