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-22
GENERALITY, LENGTH ALL 35 PREPARER wA[OCRerr], PREPARER "B",
M[OCRerr] P[OCRerr]EQUENCY RE[OCRerr]UESTS i8 RE[OCRerr]UESTs 17 RE[OCRerr]U![OCRerr]TS
Generality, Mean Relevant 1&.9 3.3 6.5
Length, Mean Concepts 8.o 9.6 6.3
Frequency, Mean Frequency [OCRerr] 157 287
C[OCRerr]arison of Length, Generality and Average Concept Frequency for all
Requests, Requests Made by Preparer ttA't and Requests Made by Preparer 1'Bt1.
Figure li.