hashing

https://doi.org/10.1351/goldbook.11454

An algorithm that maps data of variable length, such as the raw descriptors of path or circular fingerprints or InChIs, to a smaller fixed length vector.

Note: Hashed InChIs are named InChIKeys.
Source:
PAC, 2016, 88, 239. (Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)) on page 248 [Terms] [Paper]