ISR11 Scientific Report No. ISR-11 Information Storage and Retrieval An Experimental Investigation of Automatic Hierarchy Generation chapter G. Blomgren A. Goodman L. Kelly Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. VIII-2~ [OCRerr]2 DESCRIPTOR INDICATOR KEYWORD UNITERM [OCRerr]3 DISCLOSURE DISSERTATION DRAFT M[OCRerr]UALS M[OCRerr]NUsCRIPT [OCRerr]NOGRAPH NEWSLETTER NEWS PAPERS PATENT REPORT REPRINT [OCRerr] PAPER [OCRerr]5 PUBLICATION PUBLISH [OCRerr]6 DETECT DISCRIMIN DISTINGUISH PERCEIVE PERCEPT RECOGN 47 LINOFILM PHOTOCOMPOSE PHOTOCOMPOSITION PHOTO-COMPOSE PHOTO-COMPOSITION PHOTO-O[OCRerr]ET PHOTO-PRINTER PHOTOLITHOGRAPH PHOTOTYPESET 48 BIOSTATIST STATIST 49 COLLECT COMINDI COMPILE 50 CARBON CATAL CHEM COMPOUND MOLECUI[OCRerr] ORCANIC