Why is TF IDF output lognormal? I ran a TF IDF algorithm and the result of predicted similarities using cosine similarity is a log-normal distribution.  Is this a feature of the algorithm (e.g., all logit probabilities are log-normal), or might it be a result in my data?

Thanks.
Let’s look at the formula used for the calculation of tf-idf scores



You can see a log with the idf term.
The following answer explains this pretty well.
log with idf