ISR11 Scientific Report No. ISR-11 Information Storage and Retrieval Information Analysis and Dictionary Construction chapter G. Salton M. E. Lesk Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. (dunur[OCRerr]r) real physical 1 2,3 objects abstractions or processes (computer, machine, system, circuit, memory) subject may[OCRerr] severality subject may[OCRerr] be single is implied be single 1[OCRerr]87 (computer, machine) (system, circuit (operate, generate, memory[OCRerr] function) (operate, generate, iunctioi logic, program, design, da digital, equation) ever - singleness lity i criterion not implied applicable 288 (digital equatio] 419 (logic, program design, data) Hierarchy Construction by Property Separation (word-sue frequencies are shown) [OCRerr]g. 20