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AbstractEvidence is presented on the feasibility of an automated generation of classification schemes and the subsequent indexing of papers with the automatically generated subject headings. The output generated for Astronomy and Astrophysics compares favorably with the schemes used by the services and is not inconsistent with recently proposed classifications. Implementation of the automatic techniques seems not only feasible but desirable. However, it would require that the services includedoi:10.1017/s0252921100082841 fatcat:jrczy5dl35d5lhm5vyjfoo25oa