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These are the 22 similarity coefficients used in a clustering project and a data fusion project here previously at Sheffield. These include association coefficients, correlation coefficients, and distance coefficients. The letter A in these formulas is the number of bits set in both fingerprints. B is the number of bits set in only one of the fingerprint. C is the number of bits set only in the other fingerprint. Among these coefficient, Simpson is symmetrical and all others are non-symmetrical. These coefficients are the binary version. For some of these, there are the non-binary version.