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.
III-[OCRerr]9
Q 230 Cran-l Collection, Stem Dictionary. 6 Request concepts.
Cosine Logical
Rank Document Correlation Match Concepts
794 (Non-relevant) .1200 3 DURING,REPORT,MEAS UREME[OCRerr]
18 091 (Relevant) .0690 1 ABLATION
32 10+ (Relevant) .0566 1 ABLATION
Cosine Numeric
Rank Document Correlation Concepts and Weights
3 091 (Relevant) .1837 ABLATION [OCRerr]
7 10+ (Relevant) .1395 ABLATION [OCRerr]
17 794 (Non-relevant) .0887 DURING 1, REPORT 1, [OCRerr]EASUREMENT 2
Comparison of logical and numeric results for a single request, showing the
superiority of numeric.
Figure 31.