Search (39 results, page 1 of 2)

  • × theme_ss:"Benutzerstudien"
  1. Greisdorf, H.; O'Connor, B.: Nodes of topicality modeling user notions of on topic documents (2003) 0.05 
    0.05287449 = product of:
  0.10574898 = sum of:
    0.10574898 = product of:
      0.21149796 = sum of:
        0.21149796 = weight(_text_:plus in 5175) [ClassicSimilarity], result of:
          0.21149796 = score(doc=5175,freq=8.0), product of:
            0.3101809 = queryWeight, product of:
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.05026075 = queryNorm
            0.6818536 = fieldWeight in 5175, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5175)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Griesdorf and O'Connor attempt to determine the aspects of a retrieved item that provide a questioner with evidence that the item is in fact on the topic searched independent of its relevance. To this end they collect data from 32 participants, 11 from the business community as well as 21 doctoral students at the University of North Texas each of whom were asked to state if they considered material that approaches a topic in each of 14 specific manners as " on topic" or "off topic." Chi-square indicates that the observed values are significantly different from expected values and the chi-square residuals for on topic judgements exceed plus or minus two in eight cases and plus two in five cases. The positive values which indicate a percentage of response greater than that from chance suggest that documents considered topical are only related to the problem at hand, contain terms that were in the query, and describe, explain or expand the topic of the query. The chi-square residuals for off topic judgements exceed plus or minus two in ten cases and plus two in four cases. The positive values suggest that documents considered not topical exhibit a contrasting, contrary, or confounding point of view, or merely spark curiosity. Such material might well be relevant, but is not judged topical. This suggests that topical appropriateness may best be achieved using the Bruza, et alia, left compositional monotonicity approach.
  2. Kilgour, F.G.: Known-item online searches employed by scholars using surnames plus first, or last, or first and last title words (2001) 0.05 
    0.052343078 = product of:
  0.104686156 = sum of:
    0.104686156 = product of:
      0.20937231 = sum of:
        0.20937231 = weight(_text_:plus in 6932) [ClassicSimilarity], result of:
          0.20937231 = score(doc=6932,freq=4.0), product of:
            0.3101809 = queryWeight, product of:
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.05026075 = queryNorm
            0.67500067 = fieldWeight in 6932, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6932)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This experiment explores the effectiveness of retrieving the listing of a known-item book from the 3.6 million entry onine catalog at the library of the University of Michigan using various combinations of author's name plus first and last title words. The principal finding was that 98.9% of the time a 1 to 20 line miniature catalog (minicat) was displayed that contained either the entry sought or a not-in-database (NID) reply when the search comprised all three words.
  3. Kilgour, F.G.: Online retrieval of single-screen miniature catalogues by university library users (1995) 0.04 
    0.04229959 = product of:
  0.08459918 = sum of:
    0.08459918 = product of:
      0.16919836 = sum of:
        0.16919836 = weight(_text_:plus in 3826) [ClassicSimilarity], result of:
          0.16919836 = score(doc=3826,freq=2.0), product of:
            0.3101809 = queryWeight, product of:
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.05026075 = queryNorm
            0.5454829 = fieldWeight in 3826, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.0625 = fieldNorm(doc=3826)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    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
  4. Kilgour, F.G.: Effectiveness of surname-title-words searches by scholars (1995) 0.04 
    0.037012145 = product of:
  0.07402429 = sum of:
    0.07402429 = product of:
      0.14804858 = sum of:
        0.14804858 = weight(_text_:plus in 637) [ClassicSimilarity], result of:
          0.14804858 = score(doc=637,freq=2.0), product of:
            0.3101809 = queryWeight, product of:
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.05026075 = queryNorm
            0.4772975 = fieldWeight in 637, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.1714344 = idf(docFreq=250, maxDocs=44218)
              0.0546875 = fieldNorm(doc=637)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This article reprots the findings of an experiment employing a simulated scholarly use of an OPAC to determine the frequency of one-screen displays when a scholar searches for a known-item with so-called 'keywords' in an implied boolean system. The experiment revealed that a 'keyword' search formula comprising surname plus first and last title words produced a single screen 92.8% of the time, thereby reducing the failure of traditional title searching to produce single screens by nearly one half; such a formula also enables a scholar to search successfully with abbreviated, unsearchable bibliographic citations. Additional research should be carried out, for if it is further demonstrated that replacing traditional bibliographic catalog entries with transcribed title pages provides an improved known-item OPAC, users would benefit and libraries would enjoy huge savings
  5. Scholle, U.: Kann ich Ihnen behilflich sein? : Erhebung am zentralen Auskunftsplatz der ULB Münster (2000) 0.02 
    0.023833731 = product of:
  0.047667462 = sum of:
    0.047667462 = product of:
      0.095334925 = sum of:
        0.095334925 = weight(_text_:22 in 7585) [ClassicSimilarity], result of:
          0.095334925 = score(doc=7585,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.5416616 = fieldWeight in 7585, 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=7585)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 1.2000 17:52:11
  6. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.02 
    0.023833731 = product of:
  0.047667462 = sum of:
    0.047667462 = product of:
      0.095334925 = sum of:
        0.095334925 = weight(_text_:22 in 3924) [ClassicSimilarity], result of:
          0.095334925 = score(doc=3924,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.5416616 = fieldWeight in 3924, 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=3924)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Library and information science research. 22(2000) no.4, S.371-382
  7. Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008) 0.02 
    0.02042891 = product of:
  0.04085782 = sum of:
    0.04085782 = product of:
      0.08171564 = sum of:
        0.08171564 = weight(_text_:22 in 2973) [ClassicSimilarity], result of:
          0.08171564 = score(doc=2973,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.46428138 = fieldWeight in 2973, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=2973)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    9. 2.2008 17:52:22
  8. Wallace, P.M.: Periodical title searching in online catalogues (1997) 0.01 
    0.013619275 = product of:
  0.02723855 = sum of:
    0.02723855 = product of:
      0.0544771 = sum of:
        0.0544771 = weight(_text_:22 in 1628) [ClassicSimilarity], result of:
          0.0544771 = score(doc=1628,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.30952093 = fieldWeight in 1628, 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=1628)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    29. 7.1998 10:57:22
  9. Tomney, H.; Burton, P.F.: Electronic journals : a case study of usage and attitudes among academics (1998) 0.01 
    0.013619275 = product of:
  0.02723855 = sum of:
    0.02723855 = product of:
      0.0544771 = sum of:
        0.0544771 = weight(_text_:22 in 3687) [ClassicSimilarity], result of:
          0.0544771 = score(doc=3687,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.30952093 = fieldWeight in 3687, 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=3687)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 5.1999 19:07:29
  10. Gremett, P.: Utilizing a user's context to improve search results (2006) 0.01 
    0.013619275 = product of:
  0.02723855 = sum of:
    0.02723855 = product of:
      0.0544771 = sum of:
        0.0544771 = weight(_text_:22 in 5299) [ClassicSimilarity], result of:
          0.0544771 = score(doc=5299,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.30952093 = fieldWeight in 5299, 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=5299)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2006 18:17:44
  11. Schneider, R.: OPACs, Benutzer und das Web (2009) 0.01 
    0.013619275 = product of:
  0.02723855 = sum of:
    0.02723855 = product of:
      0.0544771 = sum of:
        0.0544771 = weight(_text_:22 in 2905) [ClassicSimilarity], result of:
          0.0544771 = score(doc=2905,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.30952093 = fieldWeight in 2905, 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=2905)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 2.2009 18:50:43
  12. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 760) [ClassicSimilarity], result of:
          0.047667462 = score(doc=760,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 760, 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=760)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
  13. Witt, M.: Survey on the use of the catalogue at the Mediatheque of the Cité des Sciences et de l'Industrie (CSI) (1993) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 7914) [ClassicSimilarity], result of:
          0.047667462 = score(doc=7914,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 7914, 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=7914)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    International cataloguing and bibliographic control. 22(1993) no.4, S.68-71
  14. Meadow, C.T.: Speculations on the measurement and use of user characteristics in information retrieval experimentation (1994) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 1795) [ClassicSimilarity], result of:
          0.047667462 = score(doc=1795,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 1795, 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=1795)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Canadian journal of information and library science. 19(1994) no.4, S.1-22
  15. Berger, F.C.; Hofstede, A.H.M. ter; Van der Weide, T.P.: Supporting query by navigation (1996) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 6966) [ClassicSimilarity], result of:
          0.047667462 = score(doc=6966,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 6966, 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=6966)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  16. Stokmans, M.; Oomens, A.: Meer grasduinen door genreplaatsing? : genre- of alfabetische plaatsing: onderzoek naar verschillen in gebruikersgedrag (1997) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 883) [ClassicSimilarity], result of:
          0.047667462 = score(doc=883,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 883, 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=883)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    BibliotheekBlad. 1(1997) no.21, S.22-23
  17. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.01 
    0.011916866 = product of:
  0.023833731 = sum of:
    0.023833731 = product of:
      0.047667462 = sum of:
        0.047667462 = weight(_text_:22 in 3599) [ClassicSimilarity], result of:
          0.047667462 = score(doc=3599,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.2708308 = fieldWeight in 3599, 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=3599)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    10. 9.2000 17:38:22
  18. Agosto, D.E.: Bounded rationality and satisficing in young people's Web-based decision making (2002) 0.01 
    0.010214455 = product of:
  0.02042891 = sum of:
    0.02042891 = product of:
      0.04085782 = sum of:
        0.04085782 = weight(_text_:22 in 177) [ClassicSimilarity], result of:
          0.04085782 = score(doc=177,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.23214069 = fieldWeight in 177, 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=177)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This study investigated Simon's behavioral decisionmaking theories of bounded rationality and satisficing in relation to young people's decision making in the World Wide Web, and considered the role of personal preferences in Web-based decisions. It employed a qualitative research methodology involving group interviews with 22 adolescent females. Data analysis took the form of iterative pattern coding using QSR NUD*IST Vivo qualitative data analysis software. Data analysis revealed that the study participants did operate within the limits of bounded rationality. These limits took the form of time constraints, information overload, and physical constraints. Data analysis also uncovered two major satisficing behaviors-reduction and termination. Personal preference was found to play a major role in Web site evaluation in the areas of graphic/multimedia and subject content preferences. This study has related implications for Web site designers and for adult intermediaries who work with young people and the Web
  19. Large, A.; Beheshti, J.; Rahman, T.: Design criteria for children's Web portals : the users speak out (2002) 0.01 
    0.010214455 = product of:
  0.02042891 = sum of:
    0.02042891 = product of:
      0.04085782 = sum of:
        0.04085782 = weight(_text_:22 in 197) [ClassicSimilarity], result of:
          0.04085782 = score(doc=197,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.23214069 = fieldWeight in 197, 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=197)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    2. 6.2005 10:34:22
  20. Fidel, R.: ¬The user-centered approach (2000) 0.01 
    0.010214455 = product of:
  0.02042891 = sum of:
    0.02042891 = product of:
      0.04085782 = sum of:
        0.04085782 = weight(_text_:22 in 917) [ClassicSimilarity], result of:
          0.04085782 = score(doc=917,freq=2.0), product of:
            0.17600457 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05026075 = queryNorm
            0.23214069 = fieldWeight in 917, 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=917)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 9.1997 19:16:05

Authors

Years

Languages

  • e 36
  • d 2
  • nl 1
  • More… Less…

Types

  • a 39
  • b 1
  • More… Less…

Themes