Search (173 results, page 1 of 9)

  • × theme_ss:"OPAC"
  • × theme_ss:"Benutzerstudien"
  1. Schmidt, E.; Weigang, G.; Schulz, U.: OPAC-Nutzer ernst genommen : eine Thinking-Aloud-Studie am ALS-OPAC der Hamburger Öffentlichen Bücherhallen (1997) 0.04 
    0.03748174 = product of:
  0.087457396 = sum of:
    0.046192586 = weight(_text_:g in 931) [ClassicSimilarity], result of:
      0.046192586 = score(doc=931,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.331982 = fieldWeight in 931, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.0625 = fieldNorm(doc=931)
    0.035108197 = weight(_text_:u in 931) [ClassicSimilarity], result of:
      0.035108197 = score(doc=931,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.28942272 = fieldWeight in 931, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=931)
    0.006156619 = weight(_text_:a in 931) [ClassicSimilarity], result of:
      0.006156619 = score(doc=931,freq=4.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.14413087 = fieldWeight in 931, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=931)
  0.42857143 = coord(3/7)
    Abstract
    Describes a thinking aloud study with OPAC users at HÖB which revealed considerable difficulties caused by the inadequate design of the interface and the search options for online catalogues. Reports results of an analysis of comments by users on misunderstandings and abortive search attempts which provides insights into strategies for improved OPAC design
    Type
    a
  2. Dreis, G.: Zur Analyse des Benutzerverhaltens. T.2 (1991) 0.03 
    0.029862674 = product of:
  0.10451935 = sum of:
    0.09798927 = weight(_text_:g in 2064) [ClassicSimilarity], result of:
      0.09798927 = score(doc=2064,freq=4.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.70424014 = fieldWeight in 2064, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.09375 = fieldNorm(doc=2064)
    0.006530081 = weight(_text_:a in 2064) [ClassicSimilarity], result of:
      0.006530081 = score(doc=2064,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.15287387 = fieldWeight in 2064, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.09375 = fieldNorm(doc=2064)
  0.2857143 = coord(2/7)
    Source
    Der Online-Publikumskatalog der Universitätsbibliothek Düsseldorf: methodische Erkenntnisse und Erfahrungen, OPAC-Kolloquium am 27.-28.11.1989. Hrsg.: G. Gattermann
    Type
    a
  3. Gattung, B.: Zur Analyse des Benutzerverhaltens. T.1 (1991) 0.02 
    0.021662561 = product of:
  0.07581896 = sum of:
    0.06928888 = weight(_text_:g in 2063) [ClassicSimilarity], result of:
      0.06928888 = score(doc=2063,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.49797297 = fieldWeight in 2063, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.09375 = fieldNorm(doc=2063)
    0.006530081 = weight(_text_:a in 2063) [ClassicSimilarity], result of:
      0.006530081 = score(doc=2063,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.15287387 = fieldWeight in 2063, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.09375 = fieldNorm(doc=2063)
  0.2857143 = coord(2/7)
    Source
    Der Online-Publikumskatalog der Universitätsbibliothek Düsseldorf: methodische Erkenntnisse und Erfahrungen, OPAC-Kolloquium am 27.-28.11.1989. Hrsg.: G. Gattermann
    Type
    a
  4. Franken, K.: Einige Probleme benutzerorientierter Sacherschließung : dargestellt an Recherchemitschnitten der Universitätsbibliothek Konstanz (1990) 0.02 
    0.021662561 = product of:
  0.07581896 = sum of:
    0.06928888 = weight(_text_:g in 2279) [ClassicSimilarity], result of:
      0.06928888 = score(doc=2279,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.49797297 = fieldWeight in 2279, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.09375 = fieldNorm(doc=2279)
    0.006530081 = weight(_text_:a in 2279) [ClassicSimilarity], result of:
      0.006530081 = score(doc=2279,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.15287387 = fieldWeight in 2279, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.09375 = fieldNorm(doc=2279)
  0.2857143 = coord(2/7)
    Source
    Sacherschließung im Verbund: Vorträge, Materialien und Arbeitsergebnisse eines Fortbildungskurses ... Oberwolfach-Walke vom 6.-11.11.1989. Hrsg. G. Römer
    Type
    a
  5. Söderholm, G.: OPAC user study : Stockholm University Library (1991) 0.01 
    0.014956917 = product of:
  0.052349206 = sum of:
    0.046192586 = weight(_text_:g in 2639) [ClassicSimilarity], result of:
      0.046192586 = score(doc=2639,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.331982 = fieldWeight in 2639, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.0625 = fieldNorm(doc=2639)
    0.006156619 = weight(_text_:a in 2639) [ClassicSimilarity], result of:
      0.006156619 = score(doc=2639,freq=4.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.14413087 = fieldWeight in 2639, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=2639)
  0.2857143 = coord(2/7)
    Abstract
    An OPAC user study was carried out at Stockholm University Library, 1987, involving 500 randomly chosen library users, a questionnaire and 136 responses. The object was to study patron use and general attitudes to the OPAC and to determine whether any differences in attitudes and searching behaviour could be found between different user categories. The advantages and disadvantages of the OPAC are noted
    Type
    a
  6. Spinas, P.: Benutzerfreundlichkeit von ETHICS : Ergebnisse einer Untersuchung des Online-Kataloges der ETH-Bibliothek (1992) 0.01 
    0.014582122 = product of:
  0.051037423 = sum of:
    0.04233065 = product of:
      0.0846613 = sum of:
        0.0846613 = weight(_text_:p in 491) [ClassicSimilarity], result of:
          0.0846613 = score(doc=491,freq=2.0), product of:
            0.13319843 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.03704574 = queryNorm
            0.63560283 = fieldWeight in 491, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.125 = fieldNorm(doc=491)
      0.5 = coord(1/2)
    0.008706774 = weight(_text_:a in 491) [ClassicSimilarity], result of:
      0.008706774 = score(doc=491,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.20383182 = fieldWeight in 491, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.125 = fieldNorm(doc=491)
  0.2857143 = coord(2/7)
    Type
    a
  7. Dokter, G.: Benutzungsanstieg nach OPAC-Einführung in der Universitätsbibliothek Bochum (1993) 0.01 
    0.014441707 = product of:
  0.05054597 = sum of:
    0.046192586 = weight(_text_:g in 5586) [ClassicSimilarity], result of:
      0.046192586 = score(doc=5586,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.331982 = fieldWeight in 5586, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.0625 = fieldNorm(doc=5586)
    0.004353387 = weight(_text_:a in 5586) [ClassicSimilarity], result of:
      0.004353387 = score(doc=5586,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.10191591 = fieldWeight in 5586, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=5586)
  0.2857143 = coord(2/7)
    Type
    a
  8. Pedretti, G.: ¬L'¬uso dei cataloghi in biblioteca (1996) 0.01 
    0.0130873015 = product of:
  0.045805555 = sum of:
    0.040418513 = weight(_text_:g in 109) [ClassicSimilarity], result of:
      0.040418513 = score(doc=109,freq=2.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.29048425 = fieldWeight in 109, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.0546875 = fieldNorm(doc=109)
    0.005387042 = weight(_text_:a in 109) [ClassicSimilarity], result of:
      0.005387042 = score(doc=109,freq=4.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.12611452 = fieldWeight in 109, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=109)
  0.2857143 = coord(2/7)
    Abstract
    Reports an empirical study at the Queriniana Civic Library, Brescia, of interaction betwee researchers and printed catalogues during bibliographic data retrieval. The study sought to ascertain frequency of catalogue use; research success rate and time taken; and to identify user profiles. Data were obtained by a mixture of questionnaires, interviews and direct observation. Findings showed that 64% of the catalogue users were female; 70% were aged 19-30; 65% were university students or had good school grades; and hardly any were working class. University students preferred keyword access. 50% or all searches were successful. Most search failures related to subject catalogues, which usually required more time. Provides statistics on time spent in research
    Type
    a
  9. Janosky, B.; Smith, P.; Hildreth, C.R.: Online library cataloging systems : an analysis of user errors (1986) 0.01 
    0.012759356 = product of:
  0.044657744 = sum of:
    0.037039317 = product of:
      0.074078634 = sum of:
        0.074078634 = weight(_text_:p in 800) [ClassicSimilarity], result of:
          0.074078634 = score(doc=800,freq=2.0), product of:
            0.13319843 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.03704574 = queryNorm
            0.55615246 = fieldWeight in 800, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.109375 = fieldNorm(doc=800)
      0.5 = coord(1/2)
    0.0076184273 = weight(_text_:a in 800) [ClassicSimilarity], result of:
      0.0076184273 = score(doc=800,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.17835285 = fieldWeight in 800, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.109375 = fieldNorm(doc=800)
  0.2857143 = coord(2/7)
    Type
    a
  10. Kilgour, F.G.: Online retrieval of single-screen miniature catalogues by university library users (1995) 0.01 
    0.011789949 = product of:
  0.041264817 = sum of:
    0.035108197 = weight(_text_:u in 3826) [ClassicSimilarity], result of:
      0.035108197 = score(doc=3826,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.28942272 = fieldWeight in 3826, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=3826)
    0.006156619 = weight(_text_:a in 3826) [ClassicSimilarity], result of:
      0.006156619 = score(doc=3826,freq=4.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.14413087 = fieldWeight in 3826, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=3826)
  0.2857143 = coord(2/7)
    Abstract
    Reports the findings of an experiment simulating use of a university OPAC by academic library users. Examines how effective are online searches by university library users employing surname plus first title word, or last title word, or first and last title words in producing miniature catalogues of i screen. The searches were known item searches for books
    Source
    Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes
    Type
    a
  11. Dreis, G.: Benutzerverhalten an einem Online-Publikumskatalog für wissenschaftliche Bibliotheken : Ergebnisse und Erfahrungen aus dem OPAC-Projekt der Universitätsbibliothek Düsseldorf (1994) 0.01 
    0.011665391 = product of:
  0.08165773 = sum of:
    0.08165773 = weight(_text_:g in 2703) [ClassicSimilarity], result of:
      0.08165773 = score(doc=2703,freq=4.0), product of:
        0.13914184 = queryWeight, product of:
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.03704574 = queryNorm
        0.5868668 = fieldWeight in 2703, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.7559474 = idf(docFreq=2809, maxDocs=44218)
          0.078125 = fieldNorm(doc=2703)
  0.14285715 = coord(1/7)
    Footnote
    Rez. in: ABI-Technik 14(1994) H.3, S.267-268 (D. Schmidmaier); ZfBB 42(1995) H.6, S.641-643 (G. Ewert)
  12. Ihadjadene, M.; Bouché, R.: Using syntagmatic relationships based on a RAMEAU list as a browsing relevance feedback strategy in a WWW-OPAC (1998) 0.01 
    0.0114429435 = product of:
  0.0400503 = sum of:
    0.030719671 = weight(_text_:u in 141) [ClassicSimilarity], result of:
      0.030719671 = score(doc=141,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.25324488 = fieldWeight in 141, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=141)
    0.009330629 = weight(_text_:a in 141) [ClassicSimilarity], result of:
      0.009330629 = score(doc=141,freq=12.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.21843673 = fieldWeight in 141, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=141)
  0.2857143 = coord(2/7)
    Abstract
    This paper reports on an evaluation of the browsing behaviour of end users of a WWW-OPAC focussing on the browsing relevance feedback (BRF) strategy. Results of this study reveal that BRF is a popular strategy. We also find that the relationships involved in the BRF strategy are generally syntagmatic
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
    Type
    a
  13. Ford, N.; Wood, F.: User modelling for the electronic library : a cognitive approach (1995) 0.01 
    0.010662122 = product of:
  0.037317425 = sum of:
    0.030719671 = weight(_text_:u in 3899) [ClassicSimilarity], result of:
      0.030719671 = score(doc=3899,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.25324488 = fieldWeight in 3899, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3899)
    0.0065977518 = weight(_text_:a in 3899) [ClassicSimilarity], result of:
      0.0065977518 = score(doc=3899,freq=6.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.1544581 = fieldWeight in 3899, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3899)
  0.2857143 = coord(2/7)
    Abstract
    Reports on 4 experiments conducted at Sheffield University, Department of Information Studies, UK, into cognitive models which illuminate how people learn using electronic media. The experiments dealt with: learning strategies in an unconstrained electronic environment, in a hypertext environment, and in database searching, and matching and mismatching learning styles. Discusses the positive or negative implications for the design of electronic learning materials suggested by these experiments
    Source
    Electronic library and visual information research: Proceedings of the First ELVIRA Conference (ELVIRA 1), Electronic Library and Visual Information Research, De Montfort University, Milton Keynes, May 1994. Ed. by M. Collier u, K. Arnold
    Type
    a
  14. Jansen, B.J.; Pooch , U.: ¬A review of Web searching studies and a framework for future research (2001) 0.01 
    0.010662122 = product of:
  0.037317425 = sum of:
    0.030719671 = weight(_text_:u in 5186) [ClassicSimilarity], result of:
      0.030719671 = score(doc=5186,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.25324488 = fieldWeight in 5186, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5186)
    0.0065977518 = weight(_text_:a in 5186) [ClassicSimilarity], result of:
      0.0065977518 = score(doc=5186,freq=6.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.1544581 = fieldWeight in 5186, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5186)
  0.2857143 = coord(2/7)
    Type
    a
  15. Sullenger, P.: ¬A serials transaction log analysis (1997) 0.01 
    0.0102520045 = product of:
  0.035882015 = sum of:
    0.026456656 = product of:
      0.052913312 = sum of:
        0.052913312 = weight(_text_:p in 1627) [ClassicSimilarity], result of:
          0.052913312 = score(doc=1627,freq=2.0), product of:
            0.13319843 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.03704574 = queryNorm
            0.39725178 = fieldWeight in 1627, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.078125 = fieldNorm(doc=1627)
      0.5 = coord(1/2)
    0.00942536 = weight(_text_:a in 1627) [ClassicSimilarity], result of:
      0.00942536 = score(doc=1627,freq=6.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.22065444 = fieldWeight in 1627, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.078125 = fieldNorm(doc=1627)
  0.2857143 = coord(2/7)
    Abstract
    A transaction log analysis of searches for serials looks at how users go about their searching (by title, subject, or keyword) and what problems they encounter, and then examines the results of those searches. Explores ways in which serials records could be improved to enhance retrieval
    Type
    a
  16. Thissen, F.: Verloren in digitalen Netzen : Nutzertests zur Optimierung der Bedienerfreundlichkei eines Online-Katalogs (2002) 0.01 
    0.009865396 = product of:
  0.034528885 = sum of:
    0.030719671 = weight(_text_:u in 243) [ClassicSimilarity], result of:
      0.030719671 = score(doc=243,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.25324488 = fieldWeight in 243, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=243)
    0.0038092136 = weight(_text_:a in 243) [ClassicSimilarity], result of:
      0.0038092136 = score(doc=243,freq=2.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.089176424 = fieldWeight in 243, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0546875 = fieldNorm(doc=243)
  0.2857143 = coord(2/7)
    Source
    Bibliotheken und die Vernetzung des Wissens. Hrsg.: Achim Puhl u. Richard Stang
    Type
    a
  17. Zeitlyn, D.; Bex, J.; David, M.: Making sense of online information (1997) 0.01 
    0.009388922 = product of:
  0.032861225 = sum of:
    0.026331145 = weight(_text_:u in 1098) [ClassicSimilarity], result of:
      0.026331145 = score(doc=1098,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.21706703 = fieldWeight in 1098, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.046875 = fieldNorm(doc=1098)
    0.006530081 = weight(_text_:a in 1098) [ClassicSimilarity], result of:
      0.006530081 = score(doc=1098,freq=8.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.15287387 = fieldWeight in 1098, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.046875 = fieldNorm(doc=1098)
  0.2857143 = coord(2/7)
    Abstract
    Presents some results from research into the uses and usefulness of electronic bibliographic databases in academic contexts, carried out as part of a British Library funded research project. Ethnographic and focus group data was gathered initially in 3 departments (natural science, social science and humanities) at the University of Kent at Canterbury covering all academic staff, researchers and postgraduates. This was then expanded to postgraduates and staff in the same 3 disciplines at other universities. 5 themes from this research are outlined: who uses the system, who does not, and where are these activities and inactivities happening; where does formal training occur; and where does learning occur. The problems of interface between computer systems and users often mirrored that between library enquiry staff and users where users did not know to frame questions and the advice given was not in a form understood by the users
    Source
    Electronic library and visual information research: Proceedings of the 4th ELVIRA Conference (ELVIRA 4), Electronic Library and Visual Information Research, De Montfort University, Milton Keynes, May 1997. Ed. by C. Davies u. A. Ramsden
    Type
    a
  18. Solomon, P.: Children, technology, and instruction : a case study of elementary school children using an online public access catalog (OPAC) (1994) 0.01 
    0.008828512 = product of:
  0.030899793 = sum of:
    0.021165324 = product of:
      0.04233065 = sum of:
        0.04233065 = weight(_text_:p in 1423) [ClassicSimilarity], result of:
          0.04233065 = score(doc=1423,freq=2.0), product of:
            0.13319843 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.03704574 = queryNorm
            0.31780142 = fieldWeight in 1423, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.0625 = fieldNorm(doc=1423)
      0.5 = coord(1/2)
    0.0097344695 = weight(_text_:a in 1423) [ClassicSimilarity], result of:
      0.0097344695 = score(doc=1423,freq=10.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.22789092 = fieldWeight in 1423, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=1423)
  0.2857143 = coord(2/7)
    Abstract
    Reports on a study at an elementary school in Washington, DC examining pupils' use of an OPAC. Presents this within the overall instructional environment of the school in order to open a window on the broader interaction of children, technology, curriculum, instruction and learning. Explains the methodology used in the study, the findings of the study, and notes a number of conclusions. Focuses in particular on the patterns of success and failure of children's use of the OPAC, their search strategies and the nature of their interaction with the OPAC
    Type
    a
  19. Hancock-Beaulieu, M.: Evaluating the impact of an online library catalogue on subject searching behaviour at the catalogue and at the shelves (1990) 0.01 
    0.008601493 = product of:
  0.030105224 = sum of:
    0.021942623 = weight(_text_:u in 5691) [ClassicSimilarity], result of:
      0.021942623 = score(doc=5691,freq=2.0), product of:
        0.121304214 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03704574 = queryNorm
        0.1808892 = fieldWeight in 5691, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5691)
    0.008162601 = weight(_text_:a in 5691) [ClassicSimilarity], result of:
      0.008162601 = score(doc=5691,freq=18.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.19109234 = fieldWeight in 5691, product of:
          4.2426405 = tf(freq=18.0), with freq of:
            18.0 = termFreq=18.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5691)
  0.2857143 = coord(2/7)
    Abstract
    The second half of a 'before and after' study to evaluate the impact of an online catalogue on subject searching behaviour is reported. A holistic approach is adopted encompassing both catalogue use and browsing at the shelves for catalogue users and non-users. Verbal and non-verbal data were elicited from searchers using a combined methodology including talk-aloud technique, observation and a screen logging facility. An extensive qualitative analysis was carried out correlating expressed topics, search formulation strategies and documents retrieved at the shelves. The online catalogue environment does not appear to have increased the extent of subject searching nor the use of the bibliographic tool. The manual PRECIS index supported a contextual approach for broad and more interactive search formulations whereas the OPAC encouraged a matching approach and narrow formulations with fewer but user generated formulations. The success rate of the online catalogue was slightly better than that of the manual tools but fewer items were retrieved at the shelves. Non-users of the bibliographic tools seemed to be just as successful. To improve retrieval effectiveness it is suggested that online catalogues should cater for both matching and contextual approaches to searching. Recent research indicates that a more interactive process could be promoted by providing query expansion through a combination of searching aids for matching, for search formulation assistance and for structured contextual retrieval
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
    Type
    a
  20. Solomon, P.: Children's information retrieval behavior : a case analysis of an OPAC (1993) 0.01 
    0.008201604 = product of:
  0.028705612 = sum of:
    0.021165324 = product of:
      0.04233065 = sum of:
        0.04233065 = weight(_text_:p in 4349) [ClassicSimilarity], result of:
          0.04233065 = score(doc=4349,freq=2.0), product of:
            0.13319843 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.03704574 = queryNorm
            0.31780142 = fieldWeight in 4349, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.0625 = fieldNorm(doc=4349)
      0.5 = coord(1/2)
    0.007540288 = weight(_text_:a in 4349) [ClassicSimilarity], result of:
      0.007540288 = score(doc=4349,freq=6.0), product of:
        0.04271548 = queryWeight, product of:
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.03704574 = queryNorm
        0.17652355 = fieldWeight in 4349, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.153047 = idf(docFreq=37942, maxDocs=44218)
          0.0625 = fieldNorm(doc=4349)
  0.2857143 = coord(2/7)
    Abstract
    This article reports research that explored children's information retrieval behavior using an OPAC in an elementary school library. The study considers the impact of a variety of factors including user characteristics, the school setting, interface usability, and information access features on children's information retrieval success and breakdown. The study reports the overall patterns of children's behavior that influence success and breakdown in information retrieval as well as findings about the intentions, moves, plans, strategies, and search terms of children in grades one through six
    Type
    a

Authors

Years

Languages

Types

  • a 163
  • r 5
  • el 3
  • m 3
  • b 1
  • p 1
  • More… Less…

Themes

Subjects

Classifications