IRS13 Scientific Report No. IRS-13 Information Storage and Retrieval 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-27 TERM RE[OCRerr]UESTs OF (STEM) PREPARER 11B11 COMPUTER 2 5 STEM 4 11 Occurrence of Two Particular Words in the Requests. Figure 15.