IRS13
Scientific Report No. IRS-13 Information Storage and Retrieval
Search Matching Functions
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.
111-26
AVERAGE(NEAN) CONCEPTS FER DOCUMENT
Highly Ranked Highly Ranked
Matched Pairs Matched Pairs Totals
From Overlap, From Cosine, in
Pairs from 32 Pairs from 36 Collection
Requests Requests
t
Relevant 6[OCRerr].3 514.8 60.9
Non-Relevant 97.3 51e9 60.6
Document length data using relevant/non-relevant documents paired on the
basis of similar correlation coefficients using highly ranked pairs to
contrast overlap and cosine.
Figure 15.