Jaccard Coefficient Calculator


About Jaccard Coefficient Calculator (Formula)

The Jaccard Coefficient Calculator is a tool that helps calculate the Jaccard coefficient, which is a measure of similarity between two sets. The Jaccard coefficient, also known as the Jaccard index, is widely used in data analysis, data mining, and information retrieval.

The Jaccard coefficient is defined as the ratio of the number of elements common to both sets to the total number of distinct elements in both sets. It quantifies the similarity between sets by considering the size of their intersection relative to the size of their union.

The formula for calculating the Jaccard coefficient is as follows:

JC = Ni / (Na + Nb – Ni)


  • JC represents the Jaccard coefficient.
  • Ni is the number of elements that are common to both sets.
  • Na is the total number of elements in set A.
  • Nb is the total number of elements in set B.

By plugging in the appropriate values into the formula, the Jaccard coefficient can be computed. The resulting coefficient ranges from 0 to 1, where a value of 0 indicates no similarity between the sets, and a value of 1 indicates that the sets are identical.

The Jaccard coefficient is commonly used in various applications, such as measuring the similarity of documents, comparing the similarity of genetic sequences, evaluating the overlap between user preferences in recommendation systems, and determining the similarity of sets in clustering algorithms.

The Jaccard Coefficient Calculator provides a simple and efficient way to compute the Jaccard coefficient by inputting the required values, including the number of elements in each set and the number of intersecting elements. The calculator then applies the formula to calculate the Jaccard coefficient, providing a quantitative measure of similarity between the sets.

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