non-metric

Non-Metric Space Library (NMSLIB): An efficient similarity search library and a toolkit for evaluation of k-NN methods for generic non-metric spaces.

Clustering for arbitrary data and dissimilarity function

[ECCV 2020] Training neural networks to predict visual overlap of images, through interpretable non-metric box embeddings

Comparison-based Machine Learning in Python

Non Metric Space ( Approximate ) Library in R

📊 NMSLIB visualization tool