IRS13 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. Logical, Cosine, Stem [OCRerr]xNumeric, Cosine1 Stem x ecision Precision db 1.0 1.0 0.8 0.6 0.4 0.2 x Logical, Cosine, Thesaurus - 0 Numeric, Cosine, Thesaurus-I x I I I I I bRecoll I I I I I [OCRerr] Recoil 0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1.0 ADI, Abstracts, 35 Requests ADI, Abstracts, 35 Requests Perfoi[OCRerr]nance curves c[OCRerr]nparing numeric and [OCRerr]ogical vectors two dictionaries, ADI Abstracts Collection. Fig. 21.