Document (#13681)

Author
Tonta, Y.
Title
Analysis of search failures in document retrieval systems : a review
Source
Public-access computer systems review. 3(1992) no.1, S.4-53
Year
1992
Abstract
This paper examines search failures in document retrieval systems. Since search failures are closely related to overall document retrieval system performance, the paper briefly discusses retrieval effectiveness measures such as precision and recall. It examines 4 methods used to study retrieval failures: retrieval effectiveness measures, user satisfaction measures, transaction log analysis, and the critical incident technique. It summarizes the findings of major failure anaylsis studies and identifies the types of failures that usually occur in document retrieval systems
Theme
Retrievalstudien

Similar documents (author)

  1. Tonta, Y.: ¬A study of indexing consistency between Library of Congress and British Library catalogers (1991) 6.09 
    6.094361 = sum of:
  6.094361 = weight(author_txt:tonta in 2277) [ClassicSimilarity], result of:
    6.094361 = fieldWeight in 2277, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.625 = fieldNorm(doc=2277)
  2. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 6.09 
    6.094361 = sum of:
  6.094361 = weight(author_txt:tonta in 6389) [ClassicSimilarity], result of:
    6.094361 = fieldWeight in 6389, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.625 = fieldNorm(doc=6389)
  3. Tonta, Y.: LCSH and PRECIS in library and information science : a comparative study (1992) 6.09 
    6.094361 = sum of:
  6.094361 = weight(author_txt:tonta in 802) [ClassicSimilarity], result of:
    6.094361 = fieldWeight in 802, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.625 = fieldNorm(doc=802)
  4. Tonta, Y.; Ünal, Y.: Scatter of journals and literature obsolescence reflected in document delivery requests (2005) 4.88 
    4.8754888 = sum of:
  4.8754888 = weight(author_txt:tonta in 3271) [ClassicSimilarity], result of:
    4.8754888 = fieldWeight in 3271, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.5 = fieldNorm(doc=3271)
  5. Al, U.; Sahiner, M.; Tonta, Y.: Arts and humanities literature : bibliometric characteristics of contributions by Turkish authors (2006) 3.66 
    3.6566167 = sum of:
  3.6566167 = weight(author_txt:tonta in 5108) [ClassicSimilarity], result of:
    3.6566167 = fieldWeight in 5108, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      9.7509775 = idf(docFreq=6, maxDocs=44218)
      0.375 = fieldNorm(doc=5108)

Similar documents (content)

  1. Lancaster, F.W.: Evaluating the performance of a large computerized information system (1985) 0.33 
    0.32757342 = sum of:
  0.32757342 = product of:
    0.9099261 = sum of:
      0.029378355 = weight(abstract_txt:precision in 3649) [ClassicSimilarity], result of:
        0.029378355 = score(doc=3649,freq=2.0), product of:
          0.08020921 = queryWeight, product of:
            1.0263493 = boost
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.01414432 = queryNorm
          0.3662716 = fieldWeight in 3649, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.040529914 = weight(abstract_txt:recall in 3649) [ClassicSimilarity], result of:
        0.040529914 = score(doc=3649,freq=3.0), product of:
          0.086834565 = queryWeight, product of:
            1.0678971 = boost
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.01414432 = queryNorm
          0.46674863 = fieldWeight in 3649, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.03659622 = weight(abstract_txt:occur in 3649) [ClassicSimilarity], result of:
        0.03659622 = score(doc=3649,freq=1.0), product of:
          0.11699664 = queryWeight, product of:
            1.2395663 = boost
            6.6730065 = idf(docFreq=151, maxDocs=44218)
            0.01414432 = queryNorm
          0.3127972 = fieldWeight in 3649, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.6730065 = idf(docFreq=151, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.06012074 = weight(abstract_txt:failure in 3649) [ClassicSimilarity], result of:
        0.06012074 = score(doc=3649,freq=2.0), product of:
          0.12928718 = queryWeight, product of:
            1.3030492 = boost
            7.014756 = idf(docFreq=107, maxDocs=44218)
            0.01414432 = queryNorm
          0.46501702 = fieldWeight in 3649, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.014756 = idf(docFreq=107, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.025417574 = weight(abstract_txt:systems in 3649) [ClassicSimilarity], result of:
        0.025417574 = score(doc=3649,freq=3.0), product of:
          0.09175688 = queryWeight, product of:
            1.9013542 = boost
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.01414432 = queryNorm
          0.27701 = fieldWeight in 3649, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.018086005 = weight(abstract_txt:search in 3649) [ClassicSimilarity], result of:
        0.018086005 = score(doc=3649,freq=1.0), product of:
          0.10547546 = queryWeight, product of:
            2.0385408 = boost
            3.6580524 = idf(docFreq=3098, maxDocs=44218)
            0.01414432 = queryNorm
          0.17147121 = fieldWeight in 3649, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6580524 = idf(docFreq=3098, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.055107456 = weight(abstract_txt:document in 3649) [ClassicSimilarity], result of:
        0.055107456 = score(doc=3649,freq=2.0), product of:
          0.19365683 = queryWeight, product of:
            3.1895506 = boost
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.01414432 = queryNorm
          0.2845624 = fieldWeight in 3649, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.07236296 = weight(abstract_txt:retrieval in 3649) [ClassicSimilarity], result of:
        0.07236296 = score(doc=3649,freq=4.0), product of:
          0.22211242 = queryWeight, product of:
            4.518752 = boost
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.01414432 = queryNorm
          0.3257943 = fieldWeight in 3649, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
      0.5723269 = weight(abstract_txt:failures in 3649) [ClassicSimilarity], result of:
        0.5723269 = score(doc=3649,freq=4.0), product of:
          0.78816175 = queryWeight, product of:
            7.194088 = boost
            7.7456436 = idf(docFreq=51, maxDocs=44218)
            0.01414432 = queryNorm
          0.7261541 = fieldWeight in 3649, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            7.7456436 = idf(docFreq=51, maxDocs=44218)
            0.046875 = fieldNorm(doc=3649)
    0.36 = coord(9/25)
  2. Croft, W.B.: Effective retrieval based on combining evidence from the corpus and users (1995) 0.21 
    0.21426907 = sum of:
  0.21426907 = product of:
    1.0713453 = sum of:
      0.053997636 = weight(abstract_txt:overall in 4489) [ClassicSimilarity], result of:
        0.053997636 = score(doc=4489,freq=1.0), product of:
          0.07885331 = queryWeight, product of:
            1.0176374 = boost
            5.478287 = idf(docFreq=501, maxDocs=44218)
            0.01414432 = queryNorm
          0.6847859 = fieldWeight in 4489, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.478287 = idf(docFreq=501, maxDocs=44218)
            0.125 = fieldNorm(doc=4489)
      0.055396356 = weight(abstract_txt:precision in 4489) [ClassicSimilarity], result of:
        0.055396356 = score(doc=4489,freq=1.0), product of:
          0.08020921 = queryWeight, product of:
            1.0263493 = boost
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.01414432 = queryNorm
          0.6906483 = fieldWeight in 4489, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.125 = fieldNorm(doc=4489)
      0.062399887 = weight(abstract_txt:recall in 4489) [ClassicSimilarity], result of:
        0.062399887 = score(doc=4489,freq=1.0), product of:
          0.086834565 = queryWeight, product of:
            1.0678971 = boost
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.01414432 = queryNorm
          0.71860653 = fieldWeight in 4489, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.125 = fieldNorm(doc=4489)
      0.1364489 = weight(abstract_txt:retrieval in 4489) [ClassicSimilarity], result of:
        0.1364489 = score(doc=4489,freq=2.0), product of:
          0.22211242 = queryWeight, product of:
            4.518752 = boost
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.01414432 = queryNorm
          0.6143236 = fieldWeight in 4489, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.125 = fieldNorm(doc=4489)
      0.76310253 = weight(abstract_txt:failures in 4489) [ClassicSimilarity], result of:
        0.76310253 = score(doc=4489,freq=1.0), product of:
          0.78816175 = queryWeight, product of:
            7.194088 = boost
            7.7456436 = idf(docFreq=51, maxDocs=44218)
            0.01414432 = queryNorm
          0.96820545 = fieldWeight in 4489, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.7456436 = idf(docFreq=51, maxDocs=44218)
            0.125 = fieldNorm(doc=4489)
    0.2 = coord(5/25)
  3. Su, L.T.: ¬The relevance of recall and precision in user evaluation (1994) 0.20 
    0.20388472 = sum of:
  0.20388472 = product of:
    0.5663464 = sum of:
      0.0593656 = weight(abstract_txt:precision in 6933) [ClassicSimilarity], result of:
        0.0593656 = score(doc=6933,freq=6.0), product of:
          0.08020921 = queryWeight, product of:
            1.0263493 = boost
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.01414432 = queryNorm
          0.7401345 = fieldWeight in 6933, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.061044544 = weight(abstract_txt:recall in 6933) [ClassicSimilarity], result of:
        0.061044544 = score(doc=6933,freq=5.0), product of:
          0.086834565 = queryWeight, product of:
            1.0678971 = boost
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.01414432 = queryNorm
          0.7029982 = fieldWeight in 6933, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.05348439 = weight(abstract_txt:satisfaction in 6933) [ClassicSimilarity], result of:
        0.05348439 = score(doc=6933,freq=2.0), product of:
          0.10790943 = queryWeight, product of:
            1.1904545 = boost
            6.4086204 = idf(docFreq=197, maxDocs=44218)
            0.01414432 = queryNorm
          0.49564147 = fieldWeight in 6933, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.4086204 = idf(docFreq=197, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.02427462 = weight(abstract_txt:analysis in 6933) [ClassicSimilarity], result of:
        0.02427462 = score(doc=6933,freq=3.0), product of:
          0.0701438 = queryWeight, product of:
            1.3573527 = boost
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.01414432 = queryNorm
          0.34606937 = fieldWeight in 6933, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.053859144 = weight(abstract_txt:effectiveness in 6933) [ClassicSimilarity], result of:
        0.053859144 = score(doc=6933,freq=2.0), product of:
          0.13659172 = queryWeight, product of:
            1.8941321 = boost
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.01414432 = queryNorm
          0.39430755 = fieldWeight in 6933, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.01712065 = weight(abstract_txt:systems in 6933) [ClassicSimilarity], result of:
        0.01712065 = score(doc=6933,freq=1.0), product of:
          0.09175688 = queryWeight, product of:
            1.9013542 = boost
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.01414432 = queryNorm
          0.1865871 = fieldWeight in 6933, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.029840386 = weight(abstract_txt:search in 6933) [ClassicSimilarity], result of:
        0.029840386 = score(doc=6933,freq=2.0), product of:
          0.10547546 = queryWeight, product of:
            2.0385408 = boost
            3.6580524 = idf(docFreq=3098, maxDocs=44218)
            0.01414432 = queryNorm
          0.28291306 = fieldWeight in 6933, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.6580524 = idf(docFreq=3098, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.20766072 = weight(abstract_txt:measures in 6933) [ClassicSimilarity], result of:
        0.20766072 = score(doc=6933,freq=9.0), product of:
          0.23287018 = queryWeight, product of:
            3.0290096 = boost
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.01414432 = queryNorm
          0.8917446 = fieldWeight in 6933, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
      0.059696395 = weight(abstract_txt:retrieval in 6933) [ClassicSimilarity], result of:
        0.059696395 = score(doc=6933,freq=2.0), product of:
          0.22211242 = queryWeight, product of:
            4.518752 = boost
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.01414432 = queryNorm
          0.26876658 = fieldWeight in 6933, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6933)
    0.36 = coord(9/25)
  4. Della Mea, V.; Mizzaro, S.: Measuring retrieval effectiveness : a new proposal and a first experimental validation (2004) 0.20 
    0.19834036 = sum of:
  0.19834036 = product of:
    0.6198136 = sum of:
      0.04154727 = weight(abstract_txt:precision in 2263) [ClassicSimilarity], result of:
        0.04154727 = score(doc=2263,freq=1.0), product of:
          0.08020921 = queryWeight, product of:
            1.0263493 = boost
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.01414432 = queryNorm
          0.51798624 = fieldWeight in 2263, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.5251865 = idf(docFreq=478, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.046799917 = weight(abstract_txt:recall in 2263) [ClassicSimilarity], result of:
        0.046799917 = score(doc=2263,freq=1.0), product of:
          0.086834565 = queryWeight, product of:
            1.0678971 = boost
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.01414432 = queryNorm
          0.5389549 = fieldWeight in 2263, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7488523 = idf(docFreq=382, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.024025643 = weight(abstract_txt:analysis in 2263) [ClassicSimilarity], result of:
        0.024025643 = score(doc=2263,freq=1.0), product of:
          0.0701438 = queryWeight, product of:
            1.3573527 = boost
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.01414432 = queryNorm
          0.34251985 = fieldWeight in 2263, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.09232997 = weight(abstract_txt:effectiveness in 2263) [ClassicSimilarity], result of:
        0.09232997 = score(doc=2263,freq=2.0), product of:
          0.13659172 = queryWeight, product of:
            1.8941321 = boost
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.01414432 = queryNorm
          0.67595583 = fieldWeight in 2263, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.041506723 = weight(abstract_txt:systems in 2263) [ClassicSimilarity], result of:
        0.041506723 = score(doc=2263,freq=2.0), product of:
          0.09175688 = queryWeight, product of:
            1.9013542 = boost
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.01414432 = queryNorm
          0.45235544 = fieldWeight in 2263, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.11866327 = weight(abstract_txt:measures in 2263) [ClassicSimilarity], result of:
        0.11866327 = score(doc=2263,freq=1.0), product of:
          0.23287018 = queryWeight, product of:
            3.0290096 = boost
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.01414432 = queryNorm
          0.50956833 = fieldWeight in 2263, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.11021491 = weight(abstract_txt:document in 2263) [ClassicSimilarity], result of:
        0.11021491 = score(doc=2263,freq=2.0), product of:
          0.19365683 = queryWeight, product of:
            3.1895506 = boost
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.01414432 = queryNorm
          0.5691248 = fieldWeight in 2263, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
      0.14472592 = weight(abstract_txt:retrieval in 2263) [ClassicSimilarity], result of:
        0.14472592 = score(doc=2263,freq=4.0), product of:
          0.22211242 = queryWeight, product of:
            4.518752 = boost
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.01414432 = queryNorm
          0.6515886 = fieldWeight in 2263, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.09375 = fieldNorm(doc=2263)
    0.32 = coord(8/25)
  5. Della Mea, V.; Demartini, G.; Di Gaspero, L.; Mizzaro, S.: Measuring retrieval effectiveness with Average Distance Measure (ADM) (2006) 0.17 
    0.17413366 = sum of:
  0.17413366 = product of:
    0.6219059 = sum of:
      0.02053688 = weight(abstract_txt:paper in 774) [ClassicSimilarity], result of:
        0.02053688 = score(doc=774,freq=1.0), product of:
          0.06317747 = queryWeight, product of:
            1.2881877 = boost
            3.467376 = idf(docFreq=3749, maxDocs=44218)
            0.01414432 = queryNorm
          0.3250665 = fieldWeight in 774, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.467376 = idf(docFreq=3749, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.024025643 = weight(abstract_txt:analysis in 774) [ClassicSimilarity], result of:
        0.024025643 = score(doc=774,freq=1.0), product of:
          0.0701438 = queryWeight, product of:
            1.3573527 = boost
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.01414432 = queryNorm
          0.34251985 = fieldWeight in 774, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6535451 = idf(docFreq=3112, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.11308066 = weight(abstract_txt:effectiveness in 774) [ClassicSimilarity], result of:
        0.11308066 = score(doc=774,freq=3.0), product of:
          0.13659172 = queryWeight, product of:
            1.8941321 = boost
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.01414432 = queryNorm
          0.82787347 = fieldWeight in 774, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.098378 = idf(docFreq=733, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.041506723 = weight(abstract_txt:systems in 774) [ClassicSimilarity], result of:
        0.041506723 = score(doc=774,freq=2.0), product of:
          0.09175688 = queryWeight, product of:
            1.9013542 = boost
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.01414432 = queryNorm
          0.45235544 = fieldWeight in 774, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.4118783 = idf(docFreq=3963, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.16781521 = weight(abstract_txt:measures in 774) [ClassicSimilarity], result of:
        0.16781521 = score(doc=774,freq=2.0), product of:
          0.23287018 = queryWeight, product of:
            3.0290096 = boost
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.01414432 = queryNorm
          0.72063845 = fieldWeight in 774, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.4353957 = idf(docFreq=523, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.11021491 = weight(abstract_txt:document in 774) [ClassicSimilarity], result of:
        0.11021491 = score(doc=774,freq=2.0), product of:
          0.19365683 = queryWeight, product of:
            3.1895506 = boost
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.01414432 = queryNorm
          0.5691248 = fieldWeight in 774, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.2926083 = idf(docFreq=1642, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
      0.14472592 = weight(abstract_txt:retrieval in 774) [ClassicSimilarity], result of:
        0.14472592 = score(doc=774,freq=4.0), product of:
          0.22211242 = queryWeight, product of:
            4.518752 = boost
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.01414432 = queryNorm
          0.6515886 = fieldWeight in 774, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.4751394 = idf(docFreq=3720, maxDocs=44218)
            0.09375 = fieldNorm(doc=774)
    0.28 = coord(7/25)