Measures are formulated for summarizing the strength of association between a nominal variable and an ordered categorical variable. The measures are differences or ratios of probabilities of events ...

We consider properties of the ordinal measure of association defined by the ratio of the proportions of concordant and discordant pairs. For 2 x 2 cross-classification tables, the measure simplifies ...

The one main difference between Ordinal NFTs and other NFTs has to do with data storage. Most NFTs are created using the Ethereum blockchain through the ERC-721 Non-Fungible Token Standard.