IRS13 Document Length 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. V-27 NUMBER OF RELEWANT DOCUMENTS COLLECTION DICTIONARY WITH RANK FOSITIONS SHOWING: ABSTRACT TITLE BOTH TOTAL SUPERIOR SUPERIOR EQUAL DOCUMENTS CRAN-l Stern (Overlap Logical) 89 103 6 198 Rank position merit of the 198 individual relevant documents, comparing abstract and title with overlap correlation and logical vectors. Figure 15. NUMBERS OF RELEWANT DOCUMENTS WITH RANK CHANGES IN RANGES: 1-5 6-10 11-20 21-30 3l-[OCRerr]O 141-50 51-75 76-101-126- 100 125 150 Abstract Superior 25 11 6 6 5 [OCRerr] 7 12 11 2 Total 89 Title Superior t[OCRerr]36 114 15 8 12 5 8 5 010 Total 103 _______________________________ [OCRerr][OCRerr][OCRerr]1 Changes in rank positions between abstracts and titles of 192 of the individual relevant documents, Cran-l Collection, Stem Dictionary, overlap correlation and logical vectors. Figure 16.