IRS13 An Analysis of the Documentation Requests chapter E. M. Keen Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. X-39 GENERALITY I[OCRerr]NGTh FRE[OCRerr]UENCY PREPARER SPECIFIC GENERAL LONG 8[OCRerr]RT LOW FRE[OCRerr]. HIGH FRE[OCRerr]. `[OCRerr]A11 "B'1 Stem, 10 Requests 4 6 6 4 4 6 6 4 Thesaurus, 13 12 11 14 13 12 12 13 25 Requests Attenpt to Use Factors of Generality, Length and Frequency to Make a Pre-search Dictionary Choice Between Stem and Thesaurus, Abstract Results, Showing Nunbers of the 35 Requests that Fall into Each Category. Figure 22.