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. 0[OCRerr]oLogical, Cosine, Suffix `S' Logical, Cosine1 Suffix `S' Numeric1 Cosine1 Suffix `S' Cosine, Suffix `S x Nuinenc, Precision Precision 1.0 1.0 0.8 0.8 0.6 0.6 0.4 QNo[OCRerr] 0.4 0.2 0.2 I I I I I [OCRerr] Recall 1.0 0 0.2 0.4 0.6 0.8 ADI, Text, 35 Requests I I I [OCRerr] RE 0 0.2 0.4 0.6 0.8 ADI, Abstracts, 35 Requests Per[OCRerr]ormance curves comparing numeric and logical vectors using suffix `S' dictionary, ADI Text and Abstracts Collections. Fig. 22.