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-19
LONG I bHORT
LOW HIGII LOW HIGH
FRE[OCRerr] FREQ [OCRerr]
LOW 2 ½
FRE[OCRerr] ½ [OCRerr]
__ ___ ½
SPECIFIC ________
LOW
FRE[OCRerr] [OCRerr] 2 ½ 6
GEIERAL
HIGH 10 12
FRE[OCRerr]
4 14 35
Data for the 35 Individual RequeBts Showing the Numbers
of Requests that Fall into the Eight Possible Categories of
Length, Generality and Average Concept Frequency
Figure 9.