Search (13 results, page 1 of 1)

  • × theme_ss:"Datenfernübertragung"
  • × theme_ss:"OPAC"
  1. Millsap, L.; Ferl, T.E.: Search patterns of remote users : an analysis of OPAC transaction logs (1993) 0.01
    0.0062131416 = product of:
      0.04349199 = sum of:
        0.037644558 = weight(_text_:system in 6038) [ClassicSimilarity], result of:
          0.037644558 = score(doc=6038,freq=8.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.4871716 = fieldWeight in 6038, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6038)
        0.0058474317 = weight(_text_:information in 6038) [ClassicSimilarity], result of:
          0.0058474317 = score(doc=6038,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.13576832 = fieldWeight in 6038, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6038)
      0.14285715 = coord(2/14)
    
    Abstract
    The focus of this study is the search behavior of remote users of the University of California MELVYL Library System, an OPAC. Transaction logs from randomly selected remote user search sessions are analyzed. Descriptive data on the number and type of searches, choice of search mode and database, number of retrievals, number and type of errors, and use of system HELP facilities are presented. The search data have been cross-tabulated with demographic data on the same group of remote users, collected through an online survey conducted by the authors. Effectiveness of system usage is discussed. A case mode is made for the desirability of additional heuristics in the catalog portion of the system
    Source
    Information technology and libraries. 12(1993) no.3, S.321-343
  2. Peters, T.A.: ¬The online catalog : A critical examination of public use (1991) 0.01
    0.0053588827 = product of:
      0.037512176 = sum of:
        0.009450877 = weight(_text_:information in 818) [ClassicSimilarity], result of:
          0.009450877 = score(doc=818,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.21943474 = fieldWeight in 818, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=818)
        0.028061297 = weight(_text_:retrieval in 818) [ClassicSimilarity], result of:
          0.028061297 = score(doc=818,freq=4.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.37811437 = fieldWeight in 818, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=818)
      0.14285715 = coord(2/14)
    
    COMPASS
    Information retrieval / Use of / On-line computers
    Subject
    Information retrieval / Use of / On-line computers
  3. Ferl, T.E.; Millsap, L.: Remote use of the University of California MELVYL Library System : an online survey (1992) 0.01
    0.0053005973 = product of:
      0.03710418 = sum of:
        0.030421399 = weight(_text_:system in 3102) [ClassicSimilarity], result of:
          0.030421399 = score(doc=3102,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.3936941 = fieldWeight in 3102, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3102)
        0.006682779 = weight(_text_:information in 3102) [ClassicSimilarity], result of:
          0.006682779 = score(doc=3102,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1551638 = fieldWeight in 3102, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3102)
      0.14285715 = coord(2/14)
    
    Abstract
    This report presents the results of a survey of users who access the University of California's online union catalog, the MELVYL library system, via microcomputers with modems or connections carried through local or wide area networks. The report includes descriptive statistics on user location, status, subject interest, affiliation, in-library versus out-of-library usage patterns, need for assistance, and desire for new features
    Source
    Information technology and libraries. 11(1992) no.3, S.285-303
  4. Low, K.: ABCs of OPACs (1994) 0.01
    0.0050346353 = product of:
      0.035242446 = sum of:
        0.02688897 = weight(_text_:system in 1591) [ClassicSimilarity], result of:
          0.02688897 = score(doc=1591,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.3479797 = fieldWeight in 1591, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.078125 = fieldNorm(doc=1591)
        0.008353474 = weight(_text_:information in 1591) [ClassicSimilarity], result of:
          0.008353474 = score(doc=1591,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.19395474 = fieldWeight in 1591, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.078125 = fieldNorm(doc=1591)
      0.14285715 = coord(2/14)
    
    Abstract
    Looks at the services offered by academic OPACs. Describes the services provided by Harvard Online Library Information System, University of California MELVYL Catalog, Stanford University' SOCRATES, and Princeton University Library. Many libraries now offer dial-up and/or Internet access to their OPACs
  5. Snelson, P.: Relationships between access and use in information systems : remote access to and browsing of online catalogues (1993) 0.00
    0.004556791 = product of:
      0.031897534 = sum of:
        0.018822279 = weight(_text_:system in 7911) [ClassicSimilarity], result of:
          0.018822279 = score(doc=7911,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.2435858 = fieldWeight in 7911, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7911)
        0.013075255 = weight(_text_:information in 7911) [ClassicSimilarity], result of:
          0.013075255 = score(doc=7911,freq=10.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.3035872 = fieldWeight in 7911, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7911)
      0.14285715 = coord(2/14)
    
    Abstract
    Examined two groups of online catalogue users segregated by their method of access to the system: terminals in the library or remote workstations. An online survey collected demographic data, perceptions on source and terminal accessibility, and information on usage, task variety and search satisfaction. Transaction logs furnished data on browsing behavious, while interviews of both groups provided additional information about remote use. Results indicate that remote use is comparable to traditional use
    Imprint
    Medford, NJ : Learned Information
    Source
    Integrating technologies - converging professions: proceedings of the 56th Annual Meeting of the American Society for Information Science, Columbus, OH, 24-28 October 1993. Ed.: S. Bonzi
  6. Kalin, S.W.: ¬The searching behavior of remote users : a study of one online public access catalog (OPAC) (1991) 0.00
    0.0042720297 = product of:
      0.029904205 = sum of:
        0.022816047 = weight(_text_:system in 3669) [ClassicSimilarity], result of:
          0.022816047 = score(doc=3669,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.29527056 = fieldWeight in 3669, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=3669)
        0.0070881573 = weight(_text_:information in 3669) [ClassicSimilarity], result of:
          0.0070881573 = score(doc=3669,freq=4.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.16457605 = fieldWeight in 3669, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=3669)
      0.14285715 = coord(2/14)
    
    Abstract
    This study aimed to determine if the searching behaviour of remote users of LIAS, Penn State's online catalogue differed from those using the OPAC within the library. More than 1.000 searches done by remote users (those accessing the system via either dial-access or the university's computer network) were compared to more than 1.000 searches done by in-house users. Each search was duplicated step by step and analysed according to a pre-determined set of criteria. Although few dramatic differences were found between the 2 groups, there were enough subtle differences to generate interest. In general, remote users are the more sophisticated searchers, bearing out the assumption that remote users seem to have a better conceptual knowledge of how an information system should operate. On the other hand, they struggle more with the procedural details of how to use the OPAC. Dial-access users seem to constitute a unique group of users: their searches are often quite different than those done by either network or in-house users
    Imprint
    Medford : Learned Information Inc.
  7. Sloan, B.G.: Remote access : design implications for the online catalog (1991) 0.00
    0.0024973683 = product of:
      0.017481577 = sum of:
        0.0058474317 = weight(_text_:information in 3696) [ClassicSimilarity], result of:
          0.0058474317 = score(doc=3696,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.13576832 = fieldWeight in 3696, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3696)
        0.011634145 = product of:
          0.02326829 = sum of:
            0.02326829 = weight(_text_:22 in 3696) [ClassicSimilarity], result of:
              0.02326829 = score(doc=3696,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.2708308 = fieldWeight in 3696, 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=3696)
          0.5 = coord(1/2)
      0.14285715 = coord(2/14)
    
    Date
    8. 1.2007 17:22:42
    Footnote
    Simultaneously published as Enhancing Access to Information: Designing Catalogs for the 21st Century
  8. Lazinger, S.S.; Peritz, B.C.: Reader use of a nationwide research library network : local OPAC vs. remote files (1991) 0.00
    0.0021406014 = product of:
      0.014984209 = sum of:
        0.0050120843 = weight(_text_:information in 3013) [ClassicSimilarity], result of:
          0.0050120843 = score(doc=3013,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.116372846 = fieldWeight in 3013, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=3013)
        0.009972124 = product of:
          0.019944249 = sum of:
            0.019944249 = weight(_text_:22 in 3013) [ClassicSimilarity], result of:
              0.019944249 = score(doc=3013,freq=2.0), product of:
                0.085914485 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02453417 = queryNorm
                0.23214069 = fieldWeight in 3013, 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=3013)
          0.5 = coord(1/2)
      0.14285715 = coord(2/14)
    
    Date
    22. 2.1999 13:06:18
    Source
    Information technology and libraries. 10(1991), S.192-200
  9. Maio, A.; Littlefield, W.: Issues in mounting a commercial database on an online catalog (1992) 0.00
    0.0019013374 = product of:
      0.026618723 = sum of:
        0.026618723 = weight(_text_:system in 4216) [ClassicSimilarity], result of:
          0.026618723 = score(doc=4216,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.34448233 = fieldWeight in 4216, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4216)
      0.071428575 = coord(1/14)
    
    Abstract
    Hartford University mounted a DRA Atlas Integrated library system in 1991, using a DECnet/Ethernet network and a VAX 6310 mainframe computer. As VAX VT320 terminals were available in many campus buildings, the library's catalogue could be searched from many locations and could be dialed up by remote users. Commercial databases in MARC format could be mounted on the system and searched with the same commands that users employed for the OPAC. Explains the use of Periodical Abstracts from UMI on the online catalogue. Discusses searching strategies and compares the Periodical Abstracts Ondisc CD-ROM with the tape loaded product
  10. Lucas, T.A.: Time patterns in remote OPAC use (1993) 0.00
    0.0016297178 = product of:
      0.022816047 = sum of:
        0.022816047 = weight(_text_:system in 6435) [ClassicSimilarity], result of:
          0.022816047 = score(doc=6435,freq=4.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.29527056 = fieldWeight in 6435, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=6435)
      0.071428575 = coord(1/14)
    
    Abstract
    Expanded hours of access and the reduction of peak system loads are often cited as advantages of remote access to OPACs. This argument is based on the assumption that remote users search OPACs when libraries are closed or when there is low internal use. The study tested this assumption by performing a transactional log analysis of the remote and internal use of the OPAC at the Research Libraries of the New York Public Library. Analysis showed that pateerns of remote and internal use differed greatly. A large part of the remote searching occured when the Research Libraries were closed. Compared to internal searching, remote searching was distributed more evenly over the course of the day and the week. Results show that remote access expands the hours of use of the Online catalogue and has potential to reduce peak system loads at the Research Libraries
  11. Burton, J.; Newport, J.; Robinson, E.: OPACs and JANET : a simple technique for easy user access (1989) 0.00
    0.0015365126 = product of:
      0.021511177 = sum of:
        0.021511177 = weight(_text_:system in 3107) [ClassicSimilarity], result of:
          0.021511177 = score(doc=3107,freq=2.0), product of:
            0.07727166 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.02453417 = queryNorm
            0.27838376 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=3107)
      0.071428575 = coord(1/14)
    
    Abstract
    OPACs in an increasing number of libraries are now available using the Joint Academic Network (JANET). Access has tended to be obstructed, for the casual user, by the lengthy JANET addressing codes and varying log-on procedures required by each library system. Discribed how a communications and menu package on an IBK/PC can be used so that by merely pressing cursor control, return and escape keays, any user can gain access to any one of over 40 OPACs linked to JANET
  12. Lewontin, A.: Intracampus sharing of online resources by end users (1991) 0.00
    0.0014173096 = product of:
      0.019842334 = sum of:
        0.019842334 = weight(_text_:retrieval in 3108) [ClassicSimilarity], result of:
          0.019842334 = score(doc=3108,freq=2.0), product of:
            0.07421378 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.02453417 = queryNorm
            0.26736724 = fieldWeight in 3108, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=3108)
      0.071428575 = coord(1/14)
    
    Abstract
    Describes the cooperative efforts of computer centre staff and library staff at Bentley College, Massachusetts, to create end user interfaces to enable the locally loaded data bases on the on-line catalogue to be searched off-campus by remote users as well as by library users on campus. Describes the success obtained using 2 data bases: LEXIS and Dow Jones News Retrieval Service
  13. Kock, M.d.: Remote users of an online public access catalogue (OPAC) (1993) 0.00
    4.7734138E-4 = product of:
      0.006682779 = sum of:
        0.006682779 = weight(_text_:information in 6436) [ClassicSimilarity], result of:
          0.006682779 = score(doc=6436,freq=2.0), product of:
            0.04306919 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.02453417 = queryNorm
            0.1551638 = fieldWeight in 6436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=6436)
      0.071428575 = coord(1/14)
    
    Abstract
    Networks allow different users from outside the library to have remote access to library catalogues. These remote users may face problems that differ from the OPAC users' in the library. They may not be comfortable with the computer technology and may not be familiar with the OPAC of the library. Libraries should offer different support services from those provided to on-site users. These users need technical advice as well as special instruction aids and guides to lead them to the information they want to retrieve