IRS13 Scientific Report No. IRS-13 Information Storage and Retrieval Evaluation Parameters 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, Suffix I[OCRerr]O Precision 0 1.0 Numeric, Cosine, Suffix `S' U 0.8 0.6 0.4 0.2 Normed. Normed. Recall Precision Logical, Cosine .7768 .5462 Numeric, Cosine .7520 .5308 I I I I I 0 0.2 0.4 0.6 0.8 1.0 Recoil ADI, Text, 35 Requests Cai[OCRerr]parison of Merit Assigned by Decision Recall Curve and Normalized Measures in run case of Poor Agreement Fig. 8