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  1. pdfNLM Annual Report of Programs and Services, 1963 
    https://www.nlm.nih.gov/.../nlmarchives/annualreport/1963.pdf
    ... 400 added entries, and some 2,500 cross-references already prepared for the ... result in a somewhat higher ratio of subjects to main entries than that of ...
  2. pdf1963-66.pdf 
    https://www.nlm.nih.gov/hmd/manuscripts/nlmarchives/bor/1963-66.pdf
    ... of the continuum of information needs with some reference to the new biology. Dr. ... is the cost/effectiveness ratio of the proposed system, with relevance to elements ...
  3. pdf1-20-1969-70.pdf 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/1-20-1969-70.pdf
    ... comments from users, problems, questions, recall and precision ratios and/or user satisfaction, etc., might be the ... requests resulted in higher precision, recall, and novelty ratios. We wished to probe more deeply into the ...
  4. pdfNLM Technical Bulletin, no.33-44 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/33-44-1972.pdf
    ... these routinely) other than NLM to compute a ratio of total searches to off-line searches. Thif, ratio can then be applied to the total number ... MEDLARS Centers Off-line searches in MEDLARS Centers Ratio searches/Off-line searches Total off-line searches ...
  5. pdfNLM Board of Regent's Minutes, 1968 
    https://www.nlm.nih.gov/hmd/manuscripts/nlmarchives/bor/1968.pdf
    ... Performance was measured by two figures: a "recall ratio," or the proportion of useful citations in MEDLARS actually retrieved; and a "precision ratio," the ability to withhold citations to non- relevant ...
  6. pdfNLM Technical Bulletin, no.117-128 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/117-128-1979.pdf
    ... col'grosses 2. Respiration - congresses 3. Ventiiation-Perfusion Ratio - congresses I. Barnes, Charles Dee, 1935- II. Davies, ... how many 80 X BASE PAIRS X BASE RATIO BASE PAIRS see BASE COMPOSITION G6 184 124 ...
  7. pdfNLM Annual Report of Programs and Services, 1992 
    https://www.nlm.nih.gov/.../nlmarchives/annualreport/1992.pdf
    ... excellent at a much lower cost-to-performance ratio than the previous minicomputer implementation. During FY 1992 ... the compression tech- nique consistent with maximum compression ratio and necessary image quality. The software engineering component ...
  8. pdfNLM Annual Report of Programs and Services, 1987 
    https://www.nlm.nih.gov/.../nlmarchives/annualreport/1987.pdf
    ... techniques, image data transfer error performance, respectable compression ratios for the documents design factors limiting transfer rate, ... 10 Mbps) digital transmission formance data, mainly compression ratio and time interfaces have been developed using various ...
  9. pdf1967-68.pdf 
    https://www.nlm.nih.gov/.../nlmarchives/annualreport/1967-68.pdf
    ... scale. This allowed the derivation of a precision ratio for each search. A recall ratio was estimated on the basis of MEDLARS per- ... agreed to be relevant by the requester. These ratios are being used as measures of system performance ...
  10. pdfNLM Technical Bulletin, no.270-271 
    https://www.nlm.nih.gov/.../nlmarchives/techbull/270-271-1993.pdf
    ... Activities Source Reduction Methods Accidental Release Total Production Ratio/Activity Index Other Source Reduction & Recycling March 1993 ... or routine production processes. The field called MINDX (Ratio Yr Prior to Reporting Yr) in Category 4 ...
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