IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Suffix Dictionaries
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.
vi-i6
NUMBER OF DOCUMENTS INCREASE IN NUMBER OF
COLLECTION ABOVE CORRELATION 0.35 DOCUMENTS ABOVE CORR. 0.35
SUFFIX `S' STEM STEM AS PERCENTAGE OF SUFFIX `g'
IRE-3
(34 Requests) 157 222 41.4%
ADI(Abstracts) 4o 55 37.5%
(35 Requests)
ADI (Text) 42 61 45.[OCRerr]
(35 Requests)
CRAN-1
(43 Requests) 42 54 25.6%
C[OCRerr]pari8on8 o[OCRerr] N[OCRerr]m[OCRerr]ers of Documents with a Cosine N[OCRerr]eric
Correlation above 0.35 on Stem and Suffix `5' Dictionaries,
using Four Results from Three Coliections.
Figure 10.