kattumus
Kattumus is a term used in Estonian- and other scholarly contexts to denote the overlap, convergence, or alignment between two sets of data, features, or phenomena. It generally describes the extent to which elements in one domain correspond to elements in another, rather than indicating a causal relationship.
Usage varies by discipline. In linguistics and anthropology, kattumus can refer to the degree to which features
Measurement and interpretation are context dependent. A common formalization treats kattumus as a proportion of shared
Applications and examples. Kattumus appears in cross-domain studies where researchers compare inventories, feature sets, or outcome
Related concepts include overlap, similarity measures, and the Jaccard index.