Document (#24848)

Author

Janes, J.
Hill, C.
Rolfe, A.

Title

Ask-an-expert services analysis

Source

Journal of the American Society for Information Science and technology. 52(2001) no.13, S.1106-1121

Year

2001

Abstract

This article discusses the history and emergence of non-library commercial and noncommercial information services on the World Wide Web. These services are referred to as "expert services," while the term "digital reference" is reserved for library-related on-line information services. Following suggestions in library and information literature regarding quality standards for digital reference, researchers make clear the importance of developing a practicable methodology for critical examination of expert services, and consideration of their relevance to library and other professional information services. A methodology for research in this area and initial data are described. Two hundred forty questions were asked of 20 expert service sites. Findings include performance measures such as response rate, response time, and verifiable answers. Sites responded to 70% of all questions, and gave verifiable answers to 69% of factual questions. Performance was generally highest for factual type questions. Because expert services are likely to continue to fill a niche for factual questions in the digital reference environment, implications for further research and the development of digital reference services may be appropriately turned to source questions. This is contrary to current practice and the emergence of digital reference services reported in related literature thus far.

Footnote

Enthält im Anhang eine Liste von Fragen aus verschiedenen Fachgebieten

Theme

Informationsdienstleistungen
Internet

Similar documents (author)

1. Janes, J.W.: ¬An alternative to precision (1991) 2.09

   2.0867622 = sum of:
     2.0867622 = product of:
       4.1735244 = sum of:
         4.1735244 = weight(author_txt:janes in 3053) [ClassicSimilarity], result of:
           4.1735244 = score(doc=3053,freq=1.0), product of:
             0.757867 = queryWeight, product of:
               1.0777959 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.079804346 = queryNorm
             5.506935 = fieldWeight in 3053, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=3053)
       0.5 = coord(1/2)
   

2. Janes, J.W.: Relevance judgements and the incremental presentation of document representations (1991) 2.09

   2.0867622 = sum of:
     2.0867622 = product of:
       4.1735244 = sum of:
         4.1735244 = weight(author_txt:janes in 3830) [ClassicSimilarity], result of:
           4.1735244 = score(doc=3830,freq=1.0), product of:
             0.757867 = queryWeight, product of:
               1.0777959 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.079804346 = queryNorm
             5.506935 = fieldWeight in 3830, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=3830)
       0.5 = coord(1/2)
   

3. Janes, J.W.: Towards a search theory of information (1989) 2.09

   2.0867622 = sum of:
     2.0867622 = product of:
       4.1735244 = sum of:
         4.1735244 = weight(author_txt:janes in 4490) [ClassicSimilarity], result of:
           4.1735244 = score(doc=4490,freq=1.0), product of:
             0.757867 = queryWeight, product of:
               1.0777959 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.079804346 = queryNorm
             5.506935 = fieldWeight in 4490, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=4490)
       0.5 = coord(1/2)
   

4. Janes, J.W.: ¬The binary nature of continous relevance judgements : a study of users' perceptions (1991) 2.09

   2.0867622 = sum of:
     2.0867622 = product of:
       4.1735244 = sum of:
         4.1735244 = weight(author_txt:janes in 4844) [ClassicSimilarity], result of:
           4.1735244 = score(doc=4844,freq=1.0), product of:
             0.757867 = queryWeight, product of:
               1.0777959 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.079804346 = queryNorm
             5.506935 = fieldWeight in 4844, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=4844)
       0.5 = coord(1/2)
   

5. Janes, J.W.: Other people's judgments : a comparison of users' and others' judgments of document relevance, topicality, and utility (1994) 2.09

   2.0867622 = sum of:
     2.0867622 = product of:
       4.1735244 = sum of:
         4.1735244 = weight(author_txt:janes in 6928) [ClassicSimilarity], result of:
           4.1735244 = score(doc=6928,freq=1.0), product of:
             0.757867 = queryWeight, product of:
               1.0777959 = boost
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.079804346 = queryNorm
             5.506935 = fieldWeight in 6928, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.811096 = idf(docFreq=17, maxDocs=44421)
               0.625 = fieldNorm(doc=6928)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Cloughley, K.: Digital reference services : how do the library-based services compare with the expert services? (2004) 0.51

   0.5084843 = sum of:
     0.5084843 = product of:
       1.2712107 = sum of:
         0.033853546 = weight(abstract_txt:performance in 5759) [ClassicSimilarity], result of:
           0.033853546 = score(doc=5759,freq=1.0), product of:
             0.093798265 = queryWeight, product of:
               1.1950986 = boost
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.016989153 = queryNorm
             0.36091867 = fieldWeight in 5759, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.013744998 = weight(abstract_txt:information in 5759) [ClassicSimilarity], result of:
           0.013744998 = score(doc=5759,freq=2.0), product of:
             0.051430628 = queryWeight, product of:
               1.2515041 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.016989153 = queryNorm
             0.26725316 = fieldWeight in 5759, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.120442756 = weight(abstract_txt:response in 5759) [ClassicSimilarity], result of:
           0.120442756 = score(doc=5759,freq=3.0), product of:
             0.15156727 = queryWeight, product of:
               1.5191795 = boost
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.016989153 = queryNorm
             0.7946489 = fieldWeight in 5759, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.11931339 = weight(abstract_txt:answers in 5759) [ClassicSimilarity], result of:
           0.11931339 = score(doc=5759,freq=2.0), product of:
             0.17241491 = queryWeight, product of:
               1.6202937 = boost
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.016989153 = queryNorm
             0.69201314 = fieldWeight in 5759, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.069564395 = weight(abstract_txt:digital in 5759) [ClassicSimilarity], result of:
           0.069564395 = score(doc=5759,freq=1.0), product of:
             0.20576115 = queryWeight, product of:
               2.798711 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.016989153 = queryNorm
             0.33808324 = fieldWeight in 5759, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.10806949 = weight(abstract_txt:reference in 5759) [ClassicSimilarity], result of:
           0.10806949 = score(doc=5759,freq=2.0), product of:
             0.21906051 = queryWeight, product of:
               2.887742 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.016989153 = queryNorm
             0.49333167 = fieldWeight in 5759, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.21830904 = weight(abstract_txt:factual in 5759) [ClassicSimilarity], result of:
           0.21830904 = score(doc=5759,freq=1.0), product of:
             0.37199488 = queryWeight, product of:
               2.9148786 = boost
               7.5118127 = idf(docFreq=65, maxDocs=44421)
               0.016989153 = queryNorm
             0.58686036 = fieldWeight in 5759, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.5118127 = idf(docFreq=65, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.160228 = weight(abstract_txt:expert in 5759) [ClassicSimilarity], result of:
           0.160228 = score(doc=5759,freq=1.0), product of:
             0.3588649 = queryWeight, product of:
               3.6960843 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.016989153 = queryNorm
             0.44648558 = fieldWeight in 5759, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.20766653 = weight(abstract_txt:questions in 5759) [ClassicSimilarity], result of:
           0.20766653 = score(doc=5759,freq=3.0), product of:
             0.31431833 = queryWeight, product of:
               3.7892375 = boost
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.016989153 = queryNorm
             0.6606886 = fieldWeight in 5759, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
         0.22001854 = weight(abstract_txt:services in 5759) [ClassicSimilarity], result of:
           0.22001854 = score(doc=5759,freq=3.0), product of:
             0.38730028 = queryWeight, product of:
               5.430193 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016989153 = queryNorm
             0.5680826 = fieldWeight in 5759, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.078125 = fieldNorm(doc=5759)
       0.4 = coord(10/25)
   

2. McCrea, R.: Evaluation of two library-based and one expert reference service on the Web (2004) 0.38

   0.3775638 = sum of:
     0.3775638 = product of:
       1.0487883 = sum of:
         0.040624257 = weight(abstract_txt:performance in 5757) [ClassicSimilarity], result of:
           0.040624257 = score(doc=5757,freq=1.0), product of:
             0.093798265 = queryWeight, product of:
               1.1950986 = boost
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.016989153 = queryNorm
             0.43310243 = fieldWeight in 5757, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.619759 = idf(docFreq=1189, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.011663018 = weight(abstract_txt:information in 5757) [ClassicSimilarity], result of:
           0.011663018 = score(doc=5757,freq=1.0), product of:
             0.051430628 = queryWeight, product of:
               1.2515041 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.016989153 = queryNorm
             0.22677183 = fieldWeight in 5757, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.08344519 = weight(abstract_txt:response in 5757) [ClassicSimilarity], result of:
           0.08344519 = score(doc=5757,freq=1.0), product of:
             0.15156727 = queryWeight, product of:
               1.5191795 = boost
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.016989153 = queryNorm
             0.5505489 = fieldWeight in 5757, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.10124077 = weight(abstract_txt:answers in 5757) [ClassicSimilarity], result of:
           0.10124077 = score(doc=5757,freq=1.0), product of:
             0.17241491 = queryWeight, product of:
               1.6202937 = boost
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.016989153 = queryNorm
             0.58719265 = fieldWeight in 5757, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.03779105 = weight(abstract_txt:library in 5757) [ClassicSimilarity], result of:
           0.03779105 = score(doc=5757,freq=2.0), product of:
             0.08938484 = queryWeight, product of:
               1.6498835 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.016989153 = queryNorm
             0.4227904 = fieldWeight in 5757, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.11805469 = weight(abstract_txt:digital in 5757) [ClassicSimilarity], result of:
           0.11805469 = score(doc=5757,freq=2.0), product of:
             0.20576115 = queryWeight, product of:
               2.798711 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.016989153 = queryNorm
             0.57374626 = fieldWeight in 5757, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.15882905 = weight(abstract_txt:reference in 5757) [ClassicSimilarity], result of:
           0.15882905 = score(doc=5757,freq=3.0), product of:
             0.21906051 = queryWeight, product of:
               2.887742 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.016989153 = queryNorm
             0.72504646 = fieldWeight in 5757, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.1922736 = weight(abstract_txt:expert in 5757) [ClassicSimilarity], result of:
           0.1922736 = score(doc=5757,freq=1.0), product of:
             0.3588649 = queryWeight, product of:
               3.6960843 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.016989153 = queryNorm
             0.5357827 = fieldWeight in 5757, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
         0.30486667 = weight(abstract_txt:services in 5757) [ClassicSimilarity], result of:
           0.30486667 = score(doc=5757,freq=4.0), product of:
             0.38730028 = queryWeight, product of:
               5.430193 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016989153 = queryNorm
             0.78715837 = fieldWeight in 5757, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.09375 = fieldNorm(doc=5757)
       0.36 = coord(9/25)
   

3. Kenney, A.R.; McGovern, N.Y.; Martinez, I.T.; Heidig, L.J.: Google meets eBay : what academic librarians can learn from alternative information providers (2003) 0.34

   0.33972868 = sum of:
     0.33972868 = product of:
       0.84932166 = sum of:
         0.048313715 = weight(abstract_txt:responded in 2200) [ClassicSimilarity], result of:
           0.048313715 = score(doc=2200,freq=1.0), product of:
             0.13265638 = queryWeight, product of:
               1.0049754 = boost
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.016989153 = queryNorm
             0.36420196 = fieldWeight in 2200, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.769642 = idf(docFreq=50, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.013039649 = weight(abstract_txt:information in 2200) [ClassicSimilarity], result of:
           0.013039649 = score(doc=2200,freq=5.0), product of:
             0.051430628 = queryWeight, product of:
               1.2515041 = boost
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.016989153 = queryNorm
             0.2535386 = fieldWeight in 2200, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.4188995 = idf(docFreq=10748, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.032518454 = weight(abstract_txt:sites in 2200) [ClassicSimilarity], result of:
           0.032518454 = score(doc=2200,freq=1.0), product of:
             0.12836435 = queryWeight, product of:
               1.3980689 = boost
               5.4043584 = idf(docFreq=542, maxDocs=44421)
               0.016989153 = queryNorm
             0.2533293 = fieldWeight in 2200, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4043584 = idf(docFreq=542, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.10124077 = weight(abstract_txt:answers in 2200) [ClassicSimilarity], result of:
           0.10124077 = score(doc=2200,freq=4.0), product of:
             0.17241491 = queryWeight, product of:
               1.6202937 = boost
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.016989153 = queryNorm
             0.58719265 = fieldWeight in 2200, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.02672231 = weight(abstract_txt:library in 2200) [ClassicSimilarity], result of:
           0.02672231 = score(doc=2200,freq=4.0), product of:
             0.08938484 = queryWeight, product of:
               1.6498835 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.016989153 = queryNorm
             0.29895797 = fieldWeight in 2200, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.059027344 = weight(abstract_txt:digital in 2200) [ClassicSimilarity], result of:
           0.059027344 = score(doc=2200,freq=2.0), product of:
             0.20576115 = queryWeight, product of:
               2.798711 = boost
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.016989153 = queryNorm
             0.28687313 = fieldWeight in 2200, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3274655 = idf(docFreq=1593, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.14499043 = weight(abstract_txt:reference in 2200) [ClassicSimilarity], result of:
           0.14499043 = score(doc=2200,freq=10.0), product of:
             0.21906051 = queryWeight, product of:
               2.887742 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.016989153 = queryNorm
             0.6618739 = fieldWeight in 2200, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.13595797 = weight(abstract_txt:expert in 2200) [ClassicSimilarity], result of:
           0.13595797 = score(doc=2200,freq=2.0), product of:
             0.3588649 = queryWeight, product of:
               3.6960843 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.016989153 = queryNorm
             0.3788556 = fieldWeight in 2200, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.07193779 = weight(abstract_txt:questions in 2200) [ClassicSimilarity], result of:
           0.07193779 = score(doc=2200,freq=1.0), product of:
             0.31431833 = queryWeight, product of:
               3.7892375 = boost
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.016989153 = queryNorm
             0.22886923 = fieldWeight in 2200, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
         0.21557327 = weight(abstract_txt:services in 2200) [ClassicSimilarity], result of:
           0.21557327 = score(doc=2200,freq=8.0), product of:
             0.38730028 = queryWeight, product of:
               5.430193 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016989153 = queryNorm
             0.556605 = fieldWeight in 2200, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.046875 = fieldNorm(doc=2200)
       0.4 = coord(10/25)
   

4. Shachaf, P.: ¬The paradox of expertise : is the Wikipedia Reference Desk as good as your library? (2009) 0.28

   0.27739033 = sum of:
     0.27739033 = product of:
       0.8668448 = sum of:
         0.026323693 = weight(abstract_txt:methodology in 604) [ClassicSimilarity], result of:
           0.026323693 = score(doc=604,freq=1.0), product of:
             0.09203717 = queryWeight, product of:
               1.1838263 = boost
               4.5761847 = idf(docFreq=1242, maxDocs=44421)
               0.016989153 = queryNorm
             0.28601155 = fieldWeight in 604, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5761847 = idf(docFreq=1242, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.07509815 = weight(abstract_txt:sites in 604) [ClassicSimilarity], result of:
           0.07509815 = score(doc=604,freq=3.0), product of:
             0.12836435 = queryWeight, product of:
               1.3980689 = boost
               5.4043584 = idf(docFreq=542, maxDocs=44421)
               0.016989153 = queryNorm
             0.58503896 = fieldWeight in 604, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.4043584 = idf(docFreq=542, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.09545071 = weight(abstract_txt:answers in 604) [ClassicSimilarity], result of:
           0.09545071 = score(doc=604,freq=2.0), product of:
             0.17241491 = queryWeight, product of:
               1.6202937 = boost
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.016989153 = queryNorm
             0.5536105 = fieldWeight in 604, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.030856265 = weight(abstract_txt:library in 604) [ClassicSimilarity], result of:
           0.030856265 = score(doc=604,freq=3.0), product of:
             0.08938484 = queryWeight, product of:
               1.6498835 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.016989153 = queryNorm
             0.34520692 = fieldWeight in 604, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.21177207 = weight(abstract_txt:reference in 604) [ClassicSimilarity], result of:
           0.21177207 = score(doc=604,freq=12.0), product of:
             0.21906051 = queryWeight, product of:
               2.887742 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.016989153 = queryNorm
             0.9667286 = fieldWeight in 604, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.1281824 = weight(abstract_txt:expert in 604) [ClassicSimilarity], result of:
           0.1281824 = score(doc=604,freq=1.0), product of:
             0.3588649 = queryWeight, product of:
               3.6960843 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.016989153 = queryNorm
             0.35718846 = fieldWeight in 604, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.09591706 = weight(abstract_txt:questions in 604) [ClassicSimilarity], result of:
           0.09591706 = score(doc=604,freq=1.0), product of:
             0.31431833 = queryWeight, product of:
               3.7892375 = boost
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.016989153 = queryNorm
             0.30515897 = fieldWeight in 604, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
         0.20324443 = weight(abstract_txt:services in 604) [ClassicSimilarity], result of:
           0.20324443 = score(doc=604,freq=4.0), product of:
             0.38730028 = queryWeight, product of:
               5.430193 = boost
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.016989153 = queryNorm
             0.5247722 = fieldWeight in 604, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.198178 = idf(docFreq=1813, maxDocs=44421)
               0.0625 = fieldNorm(doc=604)
       0.32 = coord(8/25)
   

5. Butkovich, N.J.; Browning, M.M.; Taylor, K.L.: ¬The Reference Expert : a coputerized database utilizing INMAGIC and a WORM drive (1991) 0.23

   0.22880363 = sum of:
     0.22880363 = product of:
       0.9533485 = sum of:
         0.08344519 = weight(abstract_txt:response in 5596) [ClassicSimilarity], result of:
           0.08344519 = score(doc=5596,freq=1.0), product of:
             0.15156727 = queryWeight, product of:
               1.5191795 = boost
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.016989153 = queryNorm
             0.5505489 = fieldWeight in 5596, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.872522 = idf(docFreq=339, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
         0.14317605 = weight(abstract_txt:answers in 5596) [ClassicSimilarity], result of:
           0.14317605 = score(doc=5596,freq=2.0), product of:
             0.17241491 = queryWeight, product of:
               1.6202937 = boost
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.016989153 = queryNorm
             0.8304157 = fieldWeight in 5596, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.263388 = idf(docFreq=229, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
         0.02672231 = weight(abstract_txt:library in 5596) [ClassicSimilarity], result of:
           0.02672231 = score(doc=5596,freq=1.0), product of:
             0.08938484 = queryWeight, product of:
               1.6498835 = boost
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.016989153 = queryNorm
             0.29895797 = fieldWeight in 5596, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.188885 = idf(docFreq=4976, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
         0.22461821 = weight(abstract_txt:reference in 5596) [ClassicSimilarity], result of:
           0.22461821 = score(doc=5596,freq=6.0), product of:
             0.21906051 = queryWeight, product of:
               2.887742 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.016989153 = queryNorm
             1.0253706 = fieldWeight in 5596, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
         0.27191594 = weight(abstract_txt:expert in 5596) [ClassicSimilarity], result of:
           0.27191594 = score(doc=5596,freq=2.0), product of:
             0.3588649 = queryWeight, product of:
               3.6960843 = boost
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.016989153 = queryNorm
             0.7577112 = fieldWeight in 5596, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7150154 = idf(docFreq=397, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
         0.20347081 = weight(abstract_txt:questions in 5596) [ClassicSimilarity], result of:
           0.20347081 = score(doc=5596,freq=2.0), product of:
             0.31431833 = queryWeight, product of:
               3.7892375 = boost
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.016989153 = queryNorm
             0.64733994 = fieldWeight in 5596, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8825436 = idf(docFreq=914, maxDocs=44421)
               0.09375 = fieldNorm(doc=5596)
       0.24 = coord(6/25)