Search (184 results, page 1 of 10)

  • × theme_ss:"OPAC"
  • × language_ss:"e"
  1. Green, E.; Head, A.J.: Web-based catalogs : is their design language anything to talk about? (1998) 0.08 
    0.080137186 = product of:
  0.16027437 = sum of:
    0.07707134 = weight(_text_:wide in 5185) [ClassicSimilarity], result of:
      0.07707134 = score(doc=5185,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.3916274 = fieldWeight in 5185, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0625 = fieldNorm(doc=5185)
    0.059131898 = weight(_text_:web in 5185) [ClassicSimilarity], result of:
      0.059131898 = score(doc=5185,freq=4.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.4079388 = fieldWeight in 5185, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0625 = fieldNorm(doc=5185)
    0.024071148 = product of:
      0.048142295 = sum of:
        0.048142295 = weight(_text_:22 in 5185) [ClassicSimilarity], result of:
          0.048142295 = score(doc=5185,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.30952093 = fieldWeight in 5185, 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=5185)
      0.5 = coord(1/2)
  0.5 = coord(3/6)
    Abstract
    Stanford University's Socrates II and University of California at Berkeley's Pathfinder are 2 USA World Wide Web based online publication access catalogues under development. They differ in their design language (how an interface functionally and visually communicates to the users). Evaluates each system's interface design and their ability to communicate functionality to users: analyzes design in terms of: colour, buttons, metaphors, layout, and basic and advanced search modes. Concludes that the design languages of both systems have the right directive and have the potential to evolve
    Source
    Online. 22(1998) no.4, S.98-105
  2. WLN announces World Wide Web access (1998) 0.06 
    0.05675135 = product of:
  0.17025405 = sum of:
    0.09633918 = weight(_text_:wide in 1769) [ClassicSimilarity], result of:
      0.09633918 = score(doc=1769,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.48953426 = fieldWeight in 1769, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.078125 = fieldNorm(doc=1769)
    0.07391487 = weight(_text_:web in 1769) [ClassicSimilarity], result of:
      0.07391487 = score(doc=1769,freq=4.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.5099235 = fieldWeight in 1769, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.078125 = fieldNorm(doc=1769)
  0.33333334 = coord(2/6)
    Abstract
    WLN has announced that it will offer WebLN, a WWW interface to the WLN databases and WebLN PAC, which will provide customized Web OPACs for individual libraries and library consortia bibliographic databases. It will also offer Blackwell's Table of Contents records through its MARC Records Service
  3. Long, C.E.: Improving subject searching in Web-based OPACs : evaluation of the problem and guidelines for design (2000) 0.05 
    0.052351486 = product of:
  0.15705445 = sum of:
    0.067437425 = weight(_text_:wide in 6110) [ClassicSimilarity], result of:
      0.067437425 = score(doc=6110,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.342674 = fieldWeight in 6110, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6110)
    0.08961702 = weight(_text_:web in 6110) [ClassicSimilarity], result of:
      0.08961702 = score(doc=6110,freq=12.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.6182494 = fieldWeight in 6110, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6110)
  0.33333334 = coord(2/6)
    Abstract
    Online catalog users search predominately by subject, yet it is the most difficult search to perform and retrieves records only about one-half of the time. A new generation of OPACs (online public access catalogs) is on the horizon, the Web-based OPAC. Web-based OPACs allow users to access online catalogs through a WWW (World Wide Web) interface and have the potential to improve patrons' ability to search by subject. But will this potential be realized? This article proposes some basic guidelines that can be incorporated into Web-based OPAC interface design to help users perform subject searches more effectively, and evaluates how well Web-based OPACs currently in operation address the subject searching problem
  4. Matsui, S.; Konno, H.: Evaluation of World Wide Web access to OPACs of public libraries in Japan : functional survey of 46 OPAC systems and end user survey of three of those systems (2000) 0.05 
    0.04953496 = product of:
  0.14860488 = sum of:
    0.09633918 = weight(_text_:wide in 1762) [ClassicSimilarity], result of:
      0.09633918 = score(doc=1762,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.48953426 = fieldWeight in 1762, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.078125 = fieldNorm(doc=1762)
    0.052265707 = weight(_text_:web in 1762) [ClassicSimilarity], result of:
      0.052265707 = score(doc=1762,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.36057037 = fieldWeight in 1762, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.078125 = fieldNorm(doc=1762)
  0.33333334 = coord(2/6)
  5. Arfield, J.: Developing a World-Wide Web OPAC (1995) 0.04 
    0.043985642 = product of:
  0.13195692 = sum of:
    0.09537092 = weight(_text_:wide in 4026) [ClassicSimilarity], result of:
      0.09537092 = score(doc=4026,freq=4.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.4846142 = fieldWeight in 4026, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4026)
    0.036585998 = weight(_text_:web in 4026) [ClassicSimilarity], result of:
      0.036585998 = score(doc=4026,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.25239927 = fieldWeight in 4026, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4026)
  0.33333334 = coord(2/6)
    Abstract
    The development of networked access to academic library catalogue records has been conspicuously slow compared with that of campus wide information systems in general. In cooperation with its systems suppliers BLCMO, the Pilkington Library, Loughborough, UK, is seeking to remedy this situation by developing an interface that allows users to access its OPAC via the W3. The benefits of such a facility are reflected in BLCMP's decision to incorporate a revised version in the forthcoming release of the commercial Talis system; but problems relating to the 'statelessness' of hypertext tranfer protocol (HTTP) and to the inadequacy of traditional catalogue records as access points for electronic information resources are still causes for consideration
  6. Hildreth, C.R.: Are Web-based OPACs more effective retrieval systems than their conventional predecessors? : an experimental study (2000) 0.04 
    0.04069482 = product of:
  0.12208446 = sum of:
    0.04816959 = weight(_text_:wide in 113) [ClassicSimilarity], result of:
      0.04816959 = score(doc=113,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.24476713 = fieldWeight in 113, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0390625 = fieldNorm(doc=113)
    0.07391487 = weight(_text_:web in 113) [ClassicSimilarity], result of:
      0.07391487 = score(doc=113,freq=16.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.5099235 = fieldWeight in 113, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=113)
  0.33333334 = coord(2/6)
    Abstract
    The World Wide Web (simplified here to "Web") is well-known for its "point and click" graphical user interface (GUI) and hyperlink search and navigate capabilities. When OPACs are placed in this operational context, users can easily hyperlink from a bibliographic display to related search terms, class marks, or bibliographic records. This hyperlinking capability is not available in most conventional text-based OPACs. As more and more users undertake their searches on Web-based information retrieval systems such as OPACs, it is natural to ask, "Are Web-based OPACs more effective retrieval systems than their conventional predecessors?" This paper presents the findings of an experimental study which compared users' search performance, assessments of ease of use, and satisfaction with search results after use of a Web OPAC or its conventional counterpart. The primary questions addressed by this research center on the influence of two experimental factors, OPAC search interface style and search task level of difficulty, on the dependent variables: actual search performance, perceptions of ease of use, and user assessments of satisfaction with search results. It was hypothesized that Web OPACs would be assessed as easier to use and that they would outperform conventional OPACs when measured by actual search results and users' levels of satisfaction with search results. Web OPAC searchers outperformed Text OPAC searchers, but search task level of difficulty is a major determinant of search success. The study also found little association between searchers' level of satisfaction with results and actual search performance
  7. Bjorvik, L.; Kogstand, O.T.: BIBLIOFIL and the World Wide Web : IT in public libraries in Norway (1995) 0.04 
    0.03962797 = product of:
  0.11888391 = sum of:
    0.07707134 = weight(_text_:wide in 2406) [ClassicSimilarity], result of:
      0.07707134 = score(doc=2406,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.3916274 = fieldWeight in 2406, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0625 = fieldNorm(doc=2406)
    0.041812565 = weight(_text_:web in 2406) [ClassicSimilarity], result of:
      0.041812565 = score(doc=2406,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.2884563 = fieldWeight in 2406, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0625 = fieldNorm(doc=2406)
  0.33333334 = coord(2/6)
  8. Slone, D.J.: ¬The influence of mental models and goals on search patterns during Web interaction (2002) 0.04 
    0.037393916 = product of:
  0.112181745 = sum of:
    0.04816959 = weight(_text_:wide in 5229) [ClassicSimilarity], result of:
      0.04816959 = score(doc=5229,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.24476713 = fieldWeight in 5229, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5229)
    0.064012155 = weight(_text_:web in 5229) [ClassicSimilarity], result of:
      0.064012155 = score(doc=5229,freq=12.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.4416067 = fieldWeight in 5229, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5229)
  0.33333334 = coord(2/6)
    Abstract
    Thirty-one patrons, who were selected by Slone to provide a range of age and experience, agreed when approached while using the catalog of the Wake County library system to try searching via the Internet. Fifteen searched the Wake County online catalog in this manner and 16 searched the World Wide Web, including that catalog. They were subjected to brief pre-structured taped interviews before and after their searches and observed during the searching process resulting in a log of behaviors, comments, pages accessed, and time spent. Data were analyzed across participants and categories. Web searches were characterized as linking, URL, search engine, within a site domain, and searching a web catalog; and participants by the number of these techniques used. Four used only one, 13 used two, 11 used three, two used four, and one all five. Participant experience was characterized as never used, used search engines, browsing experience, email experience, URL experience, catalog experience, and finally chat room/newsgroup experience. Sixteen percent of the participants had never used the Internet, 71% had used search engines, 65% had browsed, 58% had used email, 39% had used URLs, 39% had used online catalogs, and 32% had used chat rooms. The catalog was normally consulted before the web, where both were used, and experience with an online catalog assists in web use. Scrolling was found to be unpopular and practiced halfheartedly.
  9. Ayres, F.H.; Nielsen, L.P.S.; Ridley, M.J.: BOPAC2 : a new concept in OPAC design and bibliographic control (1999) 0.03 
    0.034674477 = product of:
  0.10402343 = sum of:
    0.067437425 = weight(_text_:wide in 5348) [ClassicSimilarity], result of:
      0.067437425 = score(doc=5348,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.342674 = fieldWeight in 5348, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5348)
    0.036585998 = weight(_text_:web in 5348) [ClassicSimilarity], result of:
      0.036585998 = score(doc=5348,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.25239927 = fieldWeight in 5348, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5348)
  0.33333334 = coord(2/6)
    Abstract
    This paper describes a Research Project, funded by the British Library Research and Innovation Centre, from September 1996 to January 1998.1 The Project developed and extensively tested and evaluated a World Wide Web front end called BOPAC2 that allows access to a number of library catalogues via Z39.50 either simultaneously or individually. BOPAC2 is designed to make access to large and complex retrievals simpler. Similar records are clustered together and retrievals may be sorted in a number of ways and by different criteria. The design, development and evaluation of the system are described along with suggestions for future work
  10. Saving the time of the library user through subject access innovation : Papers in honor of Pauline Atherton Cochrane (2000) 0.03 
    0.03127142 = product of:
  0.06254284 = sum of:
    0.033718713 = weight(_text_:wide in 1429) [ClassicSimilarity], result of:
      0.033718713 = score(doc=1429,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.171337 = fieldWeight in 1429, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.02734375 = fieldNorm(doc=1429)
    0.018292999 = weight(_text_:web in 1429) [ClassicSimilarity], result of:
      0.018292999 = score(doc=1429,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.12619963 = fieldWeight in 1429, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.02734375 = fieldNorm(doc=1429)
    0.010531127 = product of:
      0.021062255 = sum of:
        0.021062255 = weight(_text_:22 in 1429) [ClassicSimilarity], result of:
          0.021062255 = score(doc=1429,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.1354154 = fieldWeight in 1429, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1429)
      0.5 = coord(1/2)
  0.5 = coord(3/6)
    Abstract
    Pauline Atherton Cochrane has been contributing to library and information science for fifty years. Think of it-from mid-century to the millennium, from ENIAC (practically) to Internet 11 (almost here). What a time to be in our field! Her work an indexing, subject access, and the user-oriented approach had immediate and sustained impact, and she continues to be one of our most heavily cited authors (see, JASIS, 49[4], 327-55) and most beloved personages. This introduction includes a few words about my own experiences with Pauline as well as a short summary of the contributions that make up this tribute. A review of the curriculum vita provided at the end of this publication Shows that Pauline Cochrane has been involved in a wide variety of work. As Marcia Bates points out in her note (See below), Pauline was (and is) a role model, but I will always think of her as simply the best teacher 1 ever had. In 1997, I entered the University of Illinois Graduate School of Library and Information Science as a returning mid-life student; my previous doctorate had not led to a full-time job and I was re-tooling. I was not sure what 1 would find in library school, and the introductory course attended by more than 100 students from widely varied backgrounds had not yet convinced me I was in the right place. Then, one day, Pauline gave a guest lecture an the digital library in my introductory class. I still remember it. She put up some notes-a few words clustered an the blackboard with some circles and directional arrows-and then she gave a free, seemingly extemporaneous, but riveting narrative. She set out a vision for ideal information exchange in the digital environment but noted a host of practical concerns, issues, and potential problems that required (demanded!) continued human intervention. The lecture brought that class and the entire semester's work into focus; it created tremendous excitement for the future of librarianship. 1 saw that librarians and libraries would play an active role. I was in the right place.
    Content
    Enthält Beiträge von: FUGMANN, R.: Obstacles to progress in mechanized subject access and the necessity of a paradigm change; TELL, B.: On MARC and natural text searching: a review of Pauline Cochrane's inspirational thinking grafted onto a Swedish spy on library matters; KING, D.W.: Blazing new trails: in celebration of an audacious career; FIDEL, R.: The user-centered approach; SMITH, L.: Subject access in interdisciplinary research; DRABENSTOTT, K.M.: Web search strategies; LAM, V.-T.: Enhancing subject access to monographs in Online Public Access Catalogs: table of contents added to bibliographic records; JOHNSON, E.H.: Objects for distributed heterogeneous information retrieval
    Date
    22. 9.1997 19:16:05
  11. Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009) 0.03 
    0.029720977 = product of:
  0.08916293 = sum of:
    0.057803504 = weight(_text_:wide in 3851) [ClassicSimilarity], result of:
      0.057803504 = score(doc=3851,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.29372054 = fieldWeight in 3851, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.046875 = fieldNorm(doc=3851)
    0.031359423 = weight(_text_:web in 3851) [ClassicSimilarity], result of:
      0.031359423 = score(doc=3851,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.21634221 = fieldWeight in 3851, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=3851)
  0.33333334 = coord(2/6)
    Abstract
    The Online Public Access Catalog (OPAC) is an information retrieval system characterized by short bibliographic records, mainly of books, journals, and audiovisual materials available in a particular library. This, coupled with a Boolean search interface and a heterogeneous user population with diverse needs, presents special problems for subject searching by end users. To perform effective subject searching in the OPAC system requires a wide range of knowledge and skills. Various approaches to improving the OPAC design for subject searching have been proposed and are reviewed in this entry. The trend toward Web-based OPAC interfaces and the developments in Internet and digital library technologies present fresh opportunities for enhancing the effectiveness of the OPAC system for subject searching.
  12. Butterfield, K.: Online Public Access Catalogs (OPACs) (2009) 0.03 
    0.029720977 = product of:
  0.08916293 = sum of:
    0.057803504 = weight(_text_:wide in 4694) [ClassicSimilarity], result of:
      0.057803504 = score(doc=4694,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.29372054 = fieldWeight in 4694, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.046875 = fieldNorm(doc=4694)
    0.031359423 = weight(_text_:web in 4694) [ClassicSimilarity], result of:
      0.031359423 = score(doc=4694,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.21634221 = fieldWeight in 4694, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.046875 = fieldNorm(doc=4694)
  0.33333334 = coord(2/6)
    Abstract
    In one form or another, from a mental list in the mind of the librarian, to book catalogs, card indexes, and online information retrieval systems, some type of meta access has existed to guide library users through library collections. Over the last 40 years, these constructs of paper and wood evolved into Online Public Access Catalogs (OPACs). When the catalog shifted out of drawers and off of three by five cards to become a networked, universally accessible entity, its role in the library shifted as well. The OPAC competes with the World Wide Web, metadata registries, search engines, and more sophisticated database structures for attention. Amongst this assortment of access mechanisms, the purpose of the OPAC has become muddled. The OPAC has now become one information source among many and one of a number of portals for accessing library collections and beyond.
  13. Casale, M.: Searching for a common language (1996) 0.03 
    0.028647777 = product of:
  0.08594333 = sum of:
    0.06488107 = weight(_text_:computer in 4439) [ClassicSimilarity], result of:
      0.06488107 = score(doc=4439,freq=4.0), product of:
        0.16231956 = queryWeight, product of:
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.044416238 = queryNorm
        0.39971197 = fieldWeight in 4439, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4439)
    0.021062255 = product of:
      0.04212451 = sum of:
        0.04212451 = weight(_text_:22 in 4439) [ClassicSimilarity], result of:
          0.04212451 = score(doc=4439,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.2708308 = fieldWeight in 4439, 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=4439)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)
    Abstract
    Describes the availability, use and value of Z39.50, an international standard which allows a librarian accessing a database on one computer platform to search an OPAC hosted on another computer with a totally different database structure. Experiences of those working with the standard are given, and its use by the European Union IRIS project to link 6 major Irish research libraries is examined. Despite some problems encountered with different forms of author cataloguing and possible competition from the WWW, the standard is seen as possessing considerable strengths, for example in searching different catalogues and presenting the results in a standard format on screen, which justify the continuing interest of librarians
    Source
    Library manager. 1996, no.14, S.22-23
  14. Willson, R.; Given, L.M.: ¬The effect of spelling and retrieval system familiarity on search behavior in online public access catalogs : a mixed methods study (2010) 0.03 
    0.028375676 = product of:
  0.085127026 = sum of:
    0.04816959 = weight(_text_:wide in 4042) [ClassicSimilarity], result of:
      0.04816959 = score(doc=4042,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.24476713 = fieldWeight in 4042, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4042)
    0.036957435 = weight(_text_:web in 4042) [ClassicSimilarity], result of:
      0.036957435 = score(doc=4042,freq=4.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.25496176 = fieldWeight in 4042, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4042)
  0.33333334 = coord(2/6)
    Abstract
    Although technology can often correct spelling errors, the complex tasks of information searching and retrieval in an online public access catalog (OPAC) are made more difficult by these errors in users' input and bibliographic records. This study examines the search behaviors of 38 university students, divided into groups with either easy-to-spell or difficult-to-spell search terms, who were asked to find items in the OPAC with these search terms. Search behaviors and strategy use in the OPAC and on the World Wide Web (WWW) were examined. In general, students used familiar Web resources to check their spelling or discover more about the assigned topic. Students with difficult-to-spell search terms checked spelling more often, changed search strategies to look for the general topic and had fewer successful searches. Students unable to find the correct spelling of a search term were unable to complete their search. Students tended to search the OPAC as they would search a search engine, with few search terms or complex search strategies. The results of this study have implications for spell checking, user-focused OPAC design, and cataloging. Students' search behaviors are discussed by expanding Thatcher's (2006) Information-Seeking Process and Tactics for the WWW model to include OPACs.
  15. Davis, E.; Stone, J.: ¬A painless route on to the Web : Web services 1: The Royal Postgraduate Medical School (1997) 0.03 
    0.02773435 = product of:
  0.08320305 = sum of:
    0.059131898 = weight(_text_:web in 1632) [ClassicSimilarity], result of:
      0.059131898 = score(doc=1632,freq=4.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.4079388 = fieldWeight in 1632, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0625 = fieldNorm(doc=1632)
    0.024071148 = product of:
      0.048142295 = sum of:
        0.048142295 = weight(_text_:22 in 1632) [ClassicSimilarity], result of:
          0.048142295 = score(doc=1632,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.30952093 = fieldWeight in 1632, 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=1632)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)
    Date
    29. 7.1998 21:22:27
  16. Ashton, J.: Development of the British Library's OPAC 97 : the value of a user-centred approach (1998) 0.03 
    0.027487947 = product of:
  0.08246384 = sum of:
    0.036585998 = weight(_text_:web in 1100) [ClassicSimilarity], result of:
      0.036585998 = score(doc=1100,freq=2.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.25239927 = fieldWeight in 1100, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1100)
    0.04587784 = weight(_text_:computer in 1100) [ClassicSimilarity], result of:
      0.04587784 = score(doc=1100,freq=2.0), product of:
        0.16231956 = queryWeight, product of:
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.044416238 = queryNorm
        0.28263903 = fieldWeight in 1100, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1100)
  0.33333334 = coord(2/6)
    Abstract
    Reviews the development of the British Library OPAC services leading up to the launch of OPAC 97, offering access to 9 mio bibliographic records and attempts to show the value of a user centred approach in the project management involved in developing such a service as recommended by Human Computer Interaction (HCI) studies. Reviews the evaluation studies of the Online Catalogue, the Network OPAC, a web prototype interface and of OPAC 97 and discusses the results in relation to the OPAC 97 project. Although the OPAC 97 interface made use of various HCI recommendations, user feedback sometimes contradicted these in specific instances, revealing the value of detailed user evaluation in developing services
  17. Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991) 0.03 
    0.02550099 = product of:
  0.07650297 = sum of:
    0.05243182 = weight(_text_:computer in 3098) [ClassicSimilarity], result of:
      0.05243182 = score(doc=3098,freq=2.0), product of:
        0.16231956 = queryWeight, product of:
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.044416238 = queryNorm
        0.32301605 = fieldWeight in 3098, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.0625 = fieldNorm(doc=3098)
    0.024071148 = product of:
      0.048142295 = sum of:
        0.048142295 = weight(_text_:22 in 3098) [ClassicSimilarity], result of:
          0.048142295 = score(doc=3098,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.30952093 = fieldWeight in 3098, 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=3098)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)
    Abstract
    Reports an investigation into the feasibility of usinf tutorials to train students to use on-line public access catalogues (OPACs). The library developed instructional software which conveys a conceptual model of an on-line catalogue and how it works. Reports the results of an experiment conducted to compare the effectiveness of the computer tutorial and the standard introductory classroom lecture on using the OPAC at the University of Toronto
    Source
    Canadian journal of information science. 16(1991) no.4, S.2-22
  18. Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988) 0.03 
    0.02550099 = product of:
  0.07650297 = sum of:
    0.05243182 = weight(_text_:computer in 4165) [ClassicSimilarity], result of:
      0.05243182 = score(doc=4165,freq=2.0), product of:
        0.16231956 = queryWeight, product of:
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.044416238 = queryNorm
        0.32301605 = fieldWeight in 4165, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.0625 = fieldNorm(doc=4165)
    0.024071148 = product of:
      0.048142295 = sum of:
        0.048142295 = weight(_text_:22 in 4165) [ClassicSimilarity], result of:
          0.048142295 = score(doc=4165,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.30952093 = fieldWeight in 4165, 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=4165)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)
    Abstract
    This paper reports on the successful introduction of a sophisticated online catalogue system at the library of the Scott Polar Research Institute, Cambridge, using the Muscat program package. The system provides to both end-users and library staff a choice between boolean searching on keywords and access using relevance feedback based on free text in English, mixed with UDC classification numbers. The system is implemented on an IBM 3084 computer. Significant benefits from the application of relevance feedback are reported with 10,000 records on file.
    Source
    Program. 22(1988), S.1-20
  19. Li, Y.-O.; Leung, S.W.: Computer cataloging of electronic Journals in unstable Aggregator Databases the Hong Kong Baptist University Library experience (2001) 0.02 
    0.024555234 = product of:
  0.0736657 = sum of:
    0.05561234 = weight(_text_:computer in 164) [ClassicSimilarity], result of:
      0.05561234 = score(doc=164,freq=4.0), product of:
        0.16231956 = queryWeight, product of:
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.044416238 = queryNorm
        0.34261024 = fieldWeight in 164, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.6545093 = idf(docFreq=3109, maxDocs=44218)
          0.046875 = fieldNorm(doc=164)
    0.01805336 = product of:
      0.03610672 = sum of:
        0.03610672 = weight(_text_:22 in 164) [ClassicSimilarity], result of:
          0.03610672 = score(doc=164,freq=2.0), product of:
            0.1555381 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044416238 = queryNorm
            0.23214069 = fieldWeight in 164, 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=164)
      0.5 = coord(1/2)
  0.33333334 = coord(2/6)
    Abstract
    The growth and use of aggregator databases have presented libraries with both new opportunities for collection enhancement and new challenges of bibliographic control. How to integrate full-text electronic journal titles in unstable aggregator databases into a library's OPAC (Online Public Access Catalog) has been an especially taxing matter for libraries. This article describes the Hong Kong Baptist University Library's effort to integrate full-text electronic journal titles from three large, unstable aggregator databases into its INNOPAC-based OPAC. The library's electronic journal computer program (EJCOP) does this in a simple, direct, consistent, and accurate manner and addresses some of the issues elaborated in the January 2000 Final Report of the Task Group on Journals in Aggregator Databases of the Standing Committee on Automation of the Library of Congress Program for Cooperative Cataloging.
    Date
    10. 9.2000 17:38:22
  20. Tennant, R.: Library catalogs : the wrong solution (2003) 0.02 
    0.024416892 = product of:
  0.07325067 = sum of:
    0.028901752 = weight(_text_:wide in 1558) [ClassicSimilarity], result of:
      0.028901752 = score(doc=1558,freq=2.0), product of:
        0.19679762 = queryWeight, product of:
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.044416238 = queryNorm
        0.14686027 = fieldWeight in 1558, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.4307585 = idf(docFreq=1430, maxDocs=44218)
          0.0234375 = fieldNorm(doc=1558)
    0.04434892 = weight(_text_:web in 1558) [ClassicSimilarity], result of:
      0.04434892 = score(doc=1558,freq=16.0), product of:
        0.14495286 = queryWeight, product of:
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.044416238 = queryNorm
        0.3059541 = fieldWeight in 1558, product of:
          4.0 = tf(freq=16.0), with freq of:
            16.0 = termFreq=16.0
          3.2635105 = idf(docFreq=4597, maxDocs=44218)
          0.0234375 = fieldNorm(doc=1558)
  0.33333334 = coord(2/6)
    Content
    "MOST INTEGRATED library systems, as they are currently configured and used, should be removed from public view. Before I say why, let me be clean that I think the integrated library system serves a very important, albeit limited, role. An integrated library system should serve as a key piece of the infrastructure of a library, handling such tasks as ma terials acquisition, cataloging (including holdings, of course), and circulation. The integrated library system should be a complete and accurate recording of a local library's holdings. It should not be presented to users as the primary system for locating information. It fails badly at that important job. - Lack of content- The central problem of almost any library catalog system is that it typically includes only information about the books and journals held by a parficular library. Most do not provide access to joumal article indexes, web search engines, or even selective web directories like the Librarians' Index to the Internet. If they do offen such access, it is only via links to these services. The library catalog is far from onestop shopping for information. Although we acknowledge that fact to each other, we still treat it as if it were the best place in the universe to begin a search. Most of us give the catalog a place of great prominente an our web pages. But Information for each book is limited to the author, title, and a few subject headings. Seldom can book reviews, jacket summaries, recommendations, or tables of contents be found-or anything at all to help users determine if they want the material. - Lack of coverage - Most catalogs do not allow patrons to discover even all the books that are available to them. If you're lucky, your catalog may cover the collections of those libraries with which you have close ties-such as a regional network. But that leaves out all those items that could be requested via interlibrary loan. As Steve Coffman pointed out in his "Building Earth's Largest Library" article, we must show our users the universe that is open to them, highlight the items most accessible, and provide an estimate of how long it would take to obtain other items. - Inability to increase coverage - Despite some well-meaning attempts to smash everything of interest into the library catalog, the fact remains that most integrated library systems expect MARC records and MARC records only. This means that whatever we want to put into the catalog must be described using MARC and AACR2 (see "Marc Must Die," LJ 10/15/02, p. 26ff.). This is a barrier to dramatically increasing the scope of a catalog system, even if we decided to do it. How would you, for example, use the Open Archives Initiative Harvesting Protocol to crawl the bibliographic records of remote repositories and make them searchable within your library catalog? It can't be dope, and it shouldn't. The library catalog should be a record of a given library's holdings. Period.
    - User Interface hostility - Recently I used the Library catalogs of two public libraries, new products from two major library vendors. A link an one catalog said "Knowledge Portal," whatever that was supposed to mean. Clicking an it brought you to two choices: Z39.50 Bibliographic Sites and the World Wide Web. No public library user will have the faintest clue what Z39.50 is. The other catalog launched a Java applet that before long froze my web browser so badly I was forced to shut the program down. Pick a popular book and pretend you are a library patron. Choose three to five libraries at random from the lib web-cats site (pick catalogs that are not using your system) and attempt to find your book. Try as much as possible to see the system through the eyes of your patrons-a teenager, a retiree, or an older faculty member. You may not always like what you see. Now go back to your own system and try the same thing. - What should the public see? - Our users deserve an information system that helps them find all different kinds of resources-books, articles, web pages, working papers in institutional repositories-and gives them the tools to focus in an what they want. This is not, and should not be, the library catalog. It must communicate with the catalog, but it will also need to interface with other information systems, such as vendor databases and web search engines. What will such a tool look like? We are seeing the beginnings of such a tool in the current offerings of cross-database search tools from a few vendors (see "Cross-Database Search," LJ 10/15/01, p. 29ff). We are in the early stages of developing the kind of robust, userfriendly tool that will be required before we can pull our catalogs from public view. Meanwhile, we can begin by making what we have easier to understand and use."

Authors

Years

Types

  • a 163
  • el 9
  • s 8
  • m 7
  • r 3
  • b 1
  • i 1
  • p 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications