Nephis: A nested‐phrase indexing system
Timothy C. Craven · Journal of the American Society for Information Science · 1977
Abstract NEPHIS is a system of computer‐aided permuted subject indexing designed to be an easy as possible for the indexer, for the programmer, and for the user of the index. The indexer needs to learn only four commands in order to be able to construct any input string. Yet the permutations produced are elegant and browsable, while providing a complete description of even quite complicated subjects. The program is cheap to run, requiring only an input file and an output file and 1K of core.