Jaccard Distance

  • The Jaccard index (or Intersection over Union) is a metric used to calculate the similarity and diversity of sample sets. It is the size of the intersection divided by the size of the union of the sample sets.
  • In practice, it is the total number of similar entities between sets divided by the total number of entities.
  • To calculate the Jaccard distance we simply subtract the Jaccard index from 1
  • highly influenced by the size of the dat
  • Large datasets can have a big impact on the index as it could significantly increase the union whilst keeping the intersection similar
  • The Jaccard index is often used in applications where binary or binarized data are used
  • deep learning model predicting segments of an image
  • text similarity analysis to measure how much word choice overlap there is between documents