IRS13 Test Environment 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. 0.00005 ODOOI 0.0002 0.0005 0001 0.002 0 0.00[OCRerr] a 0.01 0.02 0.0[OCRerr] 0.l 0.2 0.5 I.0 IRE-31 Computer Science, 34 Requests CRAN-I, Aerodynamics1 42 Requests ADI, Documentation, 35 Requests 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Recall 1.0 Results based on Abstracts, Stem Dict[OCRerr]1onary, Micro Averages over Request Sets, Pseudo[OCRerr]Cranfield cyit-off Performance comparison of Three.ColieCtions in Different Subject Areas Fig. 22