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. 111-55 INPUT AND MATCHING NORMED. NORMED. COLLECTION DICTIONARY FUNCTION RECALL PRECISION IRE73 Abstract, Stem Cosine Numeric O.895[OCRerr] 0.6746 34 Abstract, Stem Choice of Best Requests Function for 0.9014 0.6931 Each Request CRAN-1 Abstract, Stem Cosine Numeric o.8644 0.6704 42 Requests Abstract, Stem Choice of Best Function for 0.8720 0.6918 Each Request Comparison of Cosine Numeric results with choice of best function for each request done by hindsight, on two collections. Figure 35e