# Questions tagged [jaccard-similarity]

Jaccard similarity (or jaccard coefficient) is a similarity function for computing the similarity between two sets

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339 views

### Statistical Interpretation of Average Pairwise Similarity

I have assembled binary vectors (0/1 for all elements and equal weight and arranged in time order) that have been separated into different cohorts where a unique event of interest occurs. I have ...
120 views

### Similarity measures and document length

I have an application where I need to measure the similarity between the (TF-IDF?) representation of two documents: $\mathbf{a}$ and $\mathbf{b}$ while still taking the document length into account. ...
518 views

### Is the Jaccard Index a function of the number of elements in a list?

I am trying to understand a research result. Imagine 10 different psychological questionnaires 1,2,3,...10 of different length (i.e. number of questions) that are all supposedly measuring the same ...
515 views

### Approach to find similarity between two different types of matrices

I'm using the movielens dataset to give recommendations to a user based on genre of the movies. I have two matrices, one contains the genre the user likes. We are considering user3 for now I also ...
1k views

### Similarity between sets with different size

is there a distance measure like jaccard for sets with different sizes? For example A=['a','b','c'] and B=['a','d'] I would like to include the total intersection as well as the order. The ...
2k views

### should I count repeated items in jaccard similarity?

I have two lists: A and B where Size(A) = 4 and size(B) = 10. I would like to find the Jaccard similarity between these two lists. Suppose A = {Tom, George, John, Jennifer} and B={Tom, Jessica, ...
604 views

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### Similarity between bar plots (counts of categories)?

What are the best ways to compare (calculate similarity) between two bar plots? For example: ...
465 views

### Jaccard coefficient (0011 and 1100 most similar?)

I try to compare different binary objects, lets say: ...
294 views

### Numerical Similarity Measures for Dirty Data

I need to compare two datasets to see if they are "similar" in terms of numerical similarity between given columns. The problem is, however, that I do not know the characteristics of the 2nd dataset. ...