Search (117 results, page 1 of 6)

  • × theme_ss:"Retrievalstudien"
  1. Pemberton, J.K.; Ojala, M.; Garman, N.: Head to head : searching the Web versus traditional services (1998) 0.05
    0.052226603 = product of:
      0.104453206 = sum of:
        0.079032205 = weight(_text_:services in 3572) [ClassicSimilarity], result of:
          0.079032205 = score(doc=3572,freq=4.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.45892134 = fieldWeight in 3572, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0625 = fieldNorm(doc=3572)
        0.025421001 = product of:
          0.050842002 = sum of:
            0.050842002 = weight(_text_:22 in 3572) [ClassicSimilarity], result of:
              0.050842002 = score(doc=3572,freq=2.0), product of:
                0.1642603 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046906993 = queryNorm
                0.30952093 = fieldWeight in 3572, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3572)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Describes of 3 searches on the topic of virtual communities done on the WWW using HotBot and traditional databases using LEXIS-NEXIS and ABI/Inform. Concludes that the WWW is a good starting place for a broad concept search but the traditional services are better for more precise topics
    Source
    Online. 22(1998) no.3, S.24-26,28
  2. Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000) 0.04
    0.042851016 = product of:
      0.17140406 = sum of:
        0.17140406 = sum of:
          0.08243056 = weight(_text_:management in 6438) [ClassicSimilarity], result of:
            0.08243056 = score(doc=6438,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.521365 = fieldWeight in 6438, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.109375 = fieldNorm(doc=6438)
          0.0889735 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
            0.0889735 = score(doc=6438,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.5416616 = fieldWeight in 6438, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.109375 = fieldNorm(doc=6438)
      0.25 = coord(1/4)
    
    Date
    11. 8.2001 16:22:19
    Source
    Information processing and management. 36(2000) no.1, S.3-36
  3. Armstrong, C.J.; Medawar, K.: Investigation into the quality of databases in general use in the UK (1996) 0.03
    0.034753162 = product of:
      0.069506325 = sum of:
        0.048898686 = weight(_text_:services in 6768) [ClassicSimilarity], result of:
          0.048898686 = score(doc=6768,freq=2.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.28394312 = fieldWeight in 6768, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6768)
        0.02060764 = product of:
          0.04121528 = sum of:
            0.04121528 = weight(_text_:management in 6768) [ClassicSimilarity], result of:
              0.04121528 = score(doc=6768,freq=2.0), product of:
                0.15810528 = queryWeight, product of:
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.046906993 = queryNorm
                0.2606825 = fieldWeight in 6768, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=6768)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Reports on a Centre for Information Quality Management (CIQM) BLRRD funded project which investigated the quality of databases in general use in the UK. Gives a literature review of quality in library and information services. Reports the results of a CIQM questionnaire survey on the quality problems of databases and their affect on users. Carries out databases evaluations of: INSPEC on ESA-IRS, INSPEC on KR Data-Star, INSPEC on UMI CD-ROM, BNB on CD-ROM, and Information Science Abstracts Plus CD-ROM. Sets out a methodology for evaluation of bibliographic databases
  4. Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994) 0.03
    0.029788423 = product of:
      0.059576847 = sum of:
        0.041913155 = weight(_text_:services in 386) [ClassicSimilarity], result of:
          0.041913155 = score(doc=386,freq=2.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.2433798 = fieldWeight in 386, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046875 = fieldNorm(doc=386)
        0.017663691 = product of:
          0.035327382 = sum of:
            0.035327382 = weight(_text_:management in 386) [ClassicSimilarity], result of:
              0.035327382 = score(doc=386,freq=2.0), product of:
                0.15810528 = queryWeight, product of:
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.046906993 = queryNorm
                0.22344214 = fieldWeight in 386, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.046875 = fieldNorm(doc=386)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Footnote
    Rez. in: Information processing and management 31(1995) no.3, S.450-451 (R.R. Larson); Library resources and technical services 41(1997) no.1, S.60-67 (B.H. Weinberg)
  5. Smithson, S.: Information retrieval evaluation in practice : a case study approach (1994) 0.02
    0.021425508 = product of:
      0.08570203 = sum of:
        0.08570203 = sum of:
          0.04121528 = weight(_text_:management in 7302) [ClassicSimilarity], result of:
            0.04121528 = score(doc=7302,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.2606825 = fieldWeight in 7302, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.0546875 = fieldNorm(doc=7302)
          0.04448675 = weight(_text_:22 in 7302) [ClassicSimilarity], result of:
            0.04448675 = score(doc=7302,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.2708308 = fieldWeight in 7302, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0546875 = fieldNorm(doc=7302)
      0.25 = coord(1/4)
    
    Abstract
    The evaluation of information retrieval systems is an important yet difficult operation. This paper describes an exploratory evaluation study that takes an interpretive approach to evaluation. The longitudinal study examines evaluation through the information-seeking behaviour of 22 case studies of 'real' users. The eclectic approach to data collection produced behavioral data that is compared with relevance judgements and satisfaction ratings. The study demonstrates considerable variations among the cases, among different evaluation measures within the same case, and among the same measures at different stages within a single case. It is argued that those involved in evaluation should be aware of the difficulties, and base any evaluation on a good understanding of the cases in question
    Source
    Information processing and management. 30(1994) no.2, S.205-221
  6. Losee, R.M.: Determining information retrieval and filtering performance without experimentation (1995) 0.02
    0.021425508 = product of:
      0.08570203 = sum of:
        0.08570203 = sum of:
          0.04121528 = weight(_text_:management in 3368) [ClassicSimilarity], result of:
            0.04121528 = score(doc=3368,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.2606825 = fieldWeight in 3368, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.0546875 = fieldNorm(doc=3368)
          0.04448675 = weight(_text_:22 in 3368) [ClassicSimilarity], result of:
            0.04448675 = score(doc=3368,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.2708308 = fieldWeight in 3368, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0546875 = fieldNorm(doc=3368)
      0.25 = coord(1/4)
    
    Date
    22. 2.1996 13:14:10
    Source
    Information processing and management. 31(1995) no.4, S.555-572
  7. Iivonen, M.: Consistency in the selection of search concepts and search terms (1995) 0.02
    0.01836472 = product of:
      0.07345888 = sum of:
        0.07345888 = sum of:
          0.035327382 = weight(_text_:management in 1757) [ClassicSimilarity], result of:
            0.035327382 = score(doc=1757,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.22344214 = fieldWeight in 1757, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046875 = fieldNorm(doc=1757)
          0.038131498 = weight(_text_:22 in 1757) [ClassicSimilarity], result of:
            0.038131498 = score(doc=1757,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.23214069 = fieldWeight in 1757, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=1757)
      0.25 = coord(1/4)
    
    Abstract
    Considers intersearcher and intrasearcher consistency in the selection of search terms. Based on an empirical study where 22 searchers from 4 different types of search environments analyzed altogether 12 search requests of 4 different types in 2 separate test situations between which 2 months elapsed. Statistically very significant differences in consistency were found according to the types of search environments and search requests. Consistency was also considered according to the extent of the scope of search concept. At level I search terms were compared character by character. At level II different search terms were accepted as the same search concept with a rather simple evaluation of linguistic expressions. At level III, in addition to level II, the hierarchical approach of the search request was also controlled. At level IV different search terms were accepted as the same search concept with a broad interpretation of the search concept. Both intersearcher and intrasearcher consistency grew most immediately after a rather simple evaluation of linguistic impressions
    Source
    Information processing and management. 31(1995) no.2, S.173-190
  8. King, D.W.; Bryant, E.C.: ¬The evaluation of information services and products (1971) 0.02
    0.017463814 = product of:
      0.06985526 = sum of:
        0.06985526 = weight(_text_:services in 4157) [ClassicSimilarity], result of:
          0.06985526 = score(doc=4157,freq=2.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.405633 = fieldWeight in 4157, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.078125 = fieldNorm(doc=4157)
      0.25 = coord(1/4)
    
  9. Salton, G.: Thoughts about modern retrieval technologies (1988) 0.02
    0.017288294 = product of:
      0.069153175 = sum of:
        0.069153175 = weight(_text_:services in 1522) [ClassicSimilarity], result of:
          0.069153175 = score(doc=1522,freq=4.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.40155616 = fieldWeight in 1522, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1522)
      0.25 = coord(1/4)
    
    Abstract
    Paper presented at the 30th Annual Conference of the National Federation of Astracting and Information Services, Philadelphia, 28 Feb-2 Mar 88. In recent years, the amount and the variety of available machine-readable data, new technologies have been introduced, such as high density storage devices, and fancy graphic displays useful for information transformation and access. New approaches have also been considered for processing the stored data based on the construction of knowledge bases representing the contents and structure of the information, and the use of expert system techniques to control the user-system interactions. Provides a brief evaluation of the new information processing technologies, and of the software methods proposed for information manipulation.
    Source
    Information services and use. 8(1988) no.2/3/4, S.107-113
  10. Schultz Jr., W.N.; Braddy, L.: ¬A librarian-centered study of perceptions of subject terms and controlled vocabulary (2017) 0.02
    0.017288294 = product of:
      0.069153175 = sum of:
        0.069153175 = weight(_text_:services in 5156) [ClassicSimilarity], result of:
          0.069153175 = score(doc=5156,freq=4.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.40155616 = fieldWeight in 5156, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5156)
      0.25 = coord(1/4)
    
    Abstract
    Controlled vocabulary and subject headings in OPAC records have proven to be useful in improving search results. The authors used a survey to gather information about librarian opinions and professional use of controlled vocabulary. Data from a range of backgrounds and expertise were examined, including academic and public libraries, and technical services as well as public services professionals. Responses overall demonstrated positive opinions of the value of controlled vocabulary, including in reference interactions as well as during bibliographic instruction sessions. Results are also examined based upon factors such as age and type of librarian.
  11. Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008) 0.02
    0.015303934 = product of:
      0.061215736 = sum of:
        0.061215736 = sum of:
          0.029439485 = weight(_text_:management in 2026) [ClassicSimilarity], result of:
            0.029439485 = score(doc=2026,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.18620178 = fieldWeight in 2026, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2026)
          0.03177625 = weight(_text_:22 in 2026) [ClassicSimilarity], result of:
            0.03177625 = score(doc=2026,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.19345059 = fieldWeight in 2026, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2026)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 44(2008) no.1, S.22-38
  12. Ravana, S.D.; Taheri, M.S.; Rajagopal, P.: Document-based approach to improve the accuracy of pairwise comparison in evaluating information retrieval systems (2015) 0.02
    0.015303934 = product of:
      0.061215736 = sum of:
        0.061215736 = sum of:
          0.029439485 = weight(_text_:management in 2587) [ClassicSimilarity], result of:
            0.029439485 = score(doc=2587,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.18620178 = fieldWeight in 2587, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2587)
          0.03177625 = weight(_text_:22 in 2587) [ClassicSimilarity], result of:
            0.03177625 = score(doc=2587,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.19345059 = fieldWeight in 2587, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2587)
      0.25 = coord(1/4)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 67(2015) no.4, S.408-421
  13. Rajagopal, P.; Ravana, S.D.; Koh, Y.S.; Balakrishnan, V.: Evaluating the effectiveness of information retrieval systems using effort-based relevance judgment (2019) 0.02
    0.015303934 = product of:
      0.061215736 = sum of:
        0.061215736 = sum of:
          0.029439485 = weight(_text_:management in 5287) [ClassicSimilarity], result of:
            0.029439485 = score(doc=5287,freq=2.0), product of:
              0.15810528 = queryWeight, product of:
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.046906993 = queryNorm
              0.18620178 = fieldWeight in 5287, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.3706124 = idf(docFreq=4130, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5287)
          0.03177625 = weight(_text_:22 in 5287) [ClassicSimilarity], result of:
            0.03177625 = score(doc=5287,freq=2.0), product of:
              0.1642603 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046906993 = queryNorm
              0.19345059 = fieldWeight in 5287, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0390625 = fieldNorm(doc=5287)
      0.25 = coord(1/4)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 71(2019) no.1, S.2-17
  14. Byrne, J.R.: Relative effectiveness of titles, abstracts, and subject headings for machine retrieval from the COMPENDEX services (1975) 0.01
    0.012224671 = product of:
      0.048898686 = sum of:
        0.048898686 = weight(_text_:services in 1604) [ClassicSimilarity], result of:
          0.048898686 = score(doc=1604,freq=2.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.28394312 = fieldWeight in 1604, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1604)
      0.25 = coord(1/4)
    
  15. Lancaster, F.W.; Connell, T.H.; Bishop, N.; McCowan, S.: Identifying barriers to effective subject access in library catalogs (1991) 0.01
    0.012224671 = product of:
      0.048898686 = sum of:
        0.048898686 = weight(_text_:services in 2259) [ClassicSimilarity], result of:
          0.048898686 = score(doc=2259,freq=2.0), product of:
            0.17221296 = queryWeight, product of:
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.046906993 = queryNorm
            0.28394312 = fieldWeight in 2259, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.6713707 = idf(docFreq=3057, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2259)
      0.25 = coord(1/4)
    
    Source
    Library resources and technical services. 35(1991), S.377-391
  16. Logan, E.: Cognitive styles and online behaviour of novice searchers (1990) 0.01
    0.011775794 = product of:
      0.047103178 = sum of:
        0.047103178 = product of:
          0.094206356 = sum of:
            0.094206356 = weight(_text_:management in 6891) [ClassicSimilarity], result of:
              0.094206356 = score(doc=6891,freq=2.0), product of:
                0.15810528 = queryWeight, product of:
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.046906993 = queryNorm
                0.5958457 = fieldWeight in 6891, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.125 = fieldNorm(doc=6891)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 26(1990), S.503-510
  17. Cooper, W.S.: ¬The paradoxal role of unexamined documents in the evaluation of retrieval effectiveness (1976) 0.01
    0.011775794 = product of:
      0.047103178 = sum of:
        0.047103178 = product of:
          0.094206356 = sum of:
            0.094206356 = weight(_text_:management in 2186) [ClassicSimilarity], result of:
              0.094206356 = score(doc=2186,freq=2.0), product of:
                0.15810528 = queryWeight, product of:
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.046906993 = queryNorm
                0.5958457 = fieldWeight in 2186, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.3706124 = idf(docFreq=4130, maxDocs=44218)
                  0.125 = fieldNorm(doc=2186)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Information processing and management. 12(1976), S.367-375
  18. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.01
    0.0111216875 = product of:
      0.04448675 = sum of:
        0.04448675 = product of:
          0.0889735 = sum of:
            0.0889735 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
              0.0889735 = score(doc=262,freq=2.0), product of:
                0.1642603 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046906993 = queryNorm
                0.5416616 = fieldWeight in 262, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=262)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    20.10.2000 12:22:23
  19. Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998) 0.01
    0.0111216875 = product of:
      0.04448675 = sum of:
        0.04448675 = product of:
          0.0889735 = sum of:
            0.0889735 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
              0.0889735 = score(doc=6418,freq=2.0), product of:
                0.1642603 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046906993 = queryNorm
                0.5416616 = fieldWeight in 6418, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6418)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Source
    Online. 22(1998) no.6, S.57-58
  20. Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990) 0.01
    0.0111216875 = product of:
      0.04448675 = sum of:
        0.04448675 = product of:
          0.0889735 = sum of:
            0.0889735 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
              0.0889735 = score(doc=5089,freq=2.0), product of:
                0.1642603 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046906993 = queryNorm
                0.5416616 = fieldWeight in 5089, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5089)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    22. 7.2006 18:43:54

Years

Languages

  • e 109
  • d 6
  • f 1
  • More… Less…

Types

  • a 108
  • m 4
  • s 4
  • el 1
  • r 1
  • x 1
  • More… Less…