IRS13 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-l1 STEM THESAUR\£-1 THESAUR[OCRerr]-2(}{ASTIE) CORRELATIO DOCTe82 DOCTeSO DOCT.82 DOCT.50 DOCT.82 DOCT.50 Overlap 6o [OCRerr]3 59 36 4o TEXT Logical -------[OCRerr] TEXT LCOgiinael 9 :D7 2[OCRerr] 57 [OCRerr] [OCRerr] TEXT NCumoseirnic 63 52 29 61 (i[OCRerr] [OCRerr] [OCRerr] TITLE Cosine 67 []8 [OCRerr]1 38 49 22 0 L] -I Relevant Document having best rank Relevant Document heving second best rank Request having best performance Request having second best performance Rank Positions of the Two Documents Relevant to Request A9, Comparing 3 Dictionaries, Two Document Lengths, and Three Matching FL[OCRerr]ctions. Figure 2.