Search (702 results, page 1 of 36)

  • × theme_ss:"OPAC"
  1. Marchionini, G.: Interfaces for end-user information seeking (1992) 0.05
    0.050581153 = product of:
      0.20232461 = sum of:
        0.020893635 = weight(_text_:information in 3672) [ClassicSimilarity], result of:
          0.020893635 = score(doc=3672,freq=10.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.3469568 = fieldWeight in 3672, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3672)
        0.15135388 = weight(_text_:extraction in 3672) [ClassicSimilarity], result of:
          0.15135388 = score(doc=3672,freq=4.0), product of:
            0.20380433 = queryWeight, product of:
              5.941145 = idf(docFreq=315, maxDocs=44218)
              0.03430388 = queryNorm
            0.7426431 = fieldWeight in 3672, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.941145 = idf(docFreq=315, maxDocs=44218)
              0.0625 = fieldNorm(doc=3672)
        0.030077105 = weight(_text_:system in 3672) [ClassicSimilarity], result of:
          0.030077105 = score(doc=3672,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.27838376 = fieldWeight in 3672, 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=3672)
      0.25 = coord(3/12)
    
    Abstract
    Discusses and illustrates the essential features of user-system interfaces designed to support end user searching. Presents examples of interfaces to support the following basic information seeking functions are presented: problem definition, source selection, problem articulation, examination of results, and information extraction. Argues that present interfaces focus on problem articulation and examination of results functions, and research and development are needed to support the problem definition and information extraction functions
    Source
    Journal of the American Society for Information Science. 43(1992), S.156-163
  2. Recker, I.; Ronthaler, M.; Zillmann, H.: OSIRIS - Osnabrück Intelligent Research Information System : ein Hyperbase Front End System für OPACs (1996) 0.03
    0.026426315 = product of:
      0.10570526 = sum of:
        0.014015877 = weight(_text_:information in 4106) [ClassicSimilarity], result of:
          0.014015877 = score(doc=4106,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.23274569 = fieldWeight in 4106, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=4106)
        0.06380317 = weight(_text_:system in 4106) [ClassicSimilarity], result of:
          0.06380317 = score(doc=4106,freq=4.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.5905411 = fieldWeight in 4106, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.09375 = fieldNorm(doc=4106)
        0.027886212 = product of:
          0.055772424 = sum of:
            0.055772424 = weight(_text_:22 in 4106) [ClassicSimilarity], result of:
              0.055772424 = score(doc=4106,freq=2.0), product of:
                0.120126344 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03430388 = queryNorm
                0.46428138 = fieldWeight in 4106, 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=4106)
          0.5 = coord(1/2)
      0.25 = coord(3/12)
    
    Date
    22. 4.1996 20:07:57
  3. Cross, A.: ¬The OPAC and community information (1997) 0.02
    0.022982609 = product of:
      0.091930434 = sum of:
        0.045669187 = weight(_text_:web in 1751) [ClassicSimilarity], result of:
          0.045669187 = score(doc=1751,freq=4.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.4079388 = fieldWeight in 1751, 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=1751)
        0.016184142 = weight(_text_:information in 1751) [ClassicSimilarity], result of:
          0.016184142 = score(doc=1751,freq=6.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.2687516 = fieldWeight in 1751, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=1751)
        0.030077105 = weight(_text_:system in 1751) [ClassicSimilarity], result of:
          0.030077105 = score(doc=1751,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.27838376 = fieldWeight in 1751, 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=1751)
      0.25 = coord(3/12)
    
    Abstract
    Hertfordshire Libraries, Arts & Information, UK, has made its library catalogue and a community information resource of over 10.000 items available on the WWW through the ALS InfoCentre system. It is currently discussing establishing a managed service for the WWW server in order to maintain a fresh presence on the Web and to sell Web space to recoup investment
  4. Dinse, S.: ¬Die sachliche Suche im OPAC der Bibliothek des HWWA-Instituts für Wirtschaftsforschung Hamburg : eine kritische Bestandsaufnahme (1994) 0.02
    0.021257252 = product of:
      0.12754351 = sum of:
        0.014015877 = weight(_text_:information in 4216) [ClassicSimilarity], result of:
          0.014015877 = score(doc=4216,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.23274569 = fieldWeight in 4216, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.09375 = fieldNorm(doc=4216)
        0.113527626 = weight(_text_:suche in 4216) [ClassicSimilarity], result of:
          0.113527626 = score(doc=4216,freq=2.0), product of:
            0.17138755 = queryWeight, product of:
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.03430388 = queryNorm
            0.662403 = fieldWeight in 4216, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.09375 = fieldNorm(doc=4216)
      0.16666667 = coord(2/12)
    
    Imprint
    Hamburg : Fachhochschule, Fb Bibliothek und Information
  5. Chen, H.-M.; Cooper, M.D.: Using clustering techniques to detect usage patterns in a Web-based information system (2001) 0.02
    0.020564295 = product of:
      0.08225718 = sum of:
        0.028543243 = weight(_text_:web in 6526) [ClassicSimilarity], result of:
          0.028543243 = score(doc=6526,freq=4.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.25496176 = fieldWeight in 6526, 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=6526)
        0.011679897 = weight(_text_:information in 6526) [ClassicSimilarity], result of:
          0.011679897 = score(doc=6526,freq=8.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.19395474 = fieldWeight in 6526, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6526)
        0.042034037 = weight(_text_:system in 6526) [ClassicSimilarity], result of:
          0.042034037 = score(doc=6526,freq=10.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.38905317 = fieldWeight in 6526, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6526)
      0.25 = coord(3/12)
    
    Abstract
    Different users of a Web-based information system will have different goals and different ways of performing their work. This article explores the possibility that we can automatically detect usage patterns without demographic information about the individuals. First, a set of 47 variables was defined that can be used to characterize a user session. The values of these variables were computed for approximately 257,000 sessions. Second, principal component analysis was employed to reduce the dimensions of the original data set. Third, a twostage, hybrid clustering method was proposed to categorize sessions into groups. Finally, an external criteriabased test of cluster validity was performed to verify the validity of the resulting usage groups (clusters). The proposed methodology was demonstrated and tested for validity using two independent samples of user sessions drawn from the transaction logs of the University of California's MELVYL® on-line library catalog system (www.melvyl.ucop.edu). The results indicate that there were six distinct categories of use in the MELVYL system: knowledgeable and sophisticated use, unsophisticated use, highly interactive use with good search performance, known-item searching, help-intensive searching, and relatively unsuccessful use. Their characteristics were interpreted and compared qualitatively. The analysis shows that each group had distinct patterns of use of the system, which justifies the methodology employed in this study
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.11, S.888-904
  6. Seruga, J.: Object-oriented modeling of a library information system (1997) 0.02
    0.020007452 = product of:
      0.08002981 = sum of:
        0.009343918 = weight(_text_:information in 8477) [ClassicSimilarity], result of:
          0.009343918 = score(doc=8477,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.1551638 = fieldWeight in 8477, 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=8477)
        0.052095078 = weight(_text_:system in 8477) [ClassicSimilarity], result of:
          0.052095078 = score(doc=8477,freq=6.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.48217484 = fieldWeight in 8477, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0625 = fieldNorm(doc=8477)
        0.01859081 = product of:
          0.03718162 = sum of:
            0.03718162 = weight(_text_:22 in 8477) [ClassicSimilarity], result of:
              0.03718162 = score(doc=8477,freq=2.0), product of:
                0.120126344 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03430388 = queryNorm
                0.30952093 = fieldWeight in 8477, 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=8477)
          0.5 = coord(1/2)
      0.25 = coord(3/12)
    
    Abstract
    Analyses the OPAC at the Australian Catholic University in New South Wales, Castle Hill Campus using an object oriented model following Rumbaugh's methodology, as described in 'Object oriented modelling and design, 1991'. The process of analysis, although difficult, is one of the most effective ways of determining each function of a system of this kind. The methodology is especially useful as the data structure, behavioural and functional aspects of the system are displayed in separate diagrams. This is an advantage for those analysing systems, who can display many factors without confusing different aspects involved in the analysis process
    Source
    LASIE. 28(1997) no.4, S.22-34
  7. Catalogue 2.0 : the future of the library catalogue (2013) 0.02
    0.019802306 = product of:
      0.11881383 = sum of:
        0.05355187 = weight(_text_:web in 1339) [ClassicSimilarity], result of:
          0.05355187 = score(doc=1339,freq=22.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.47835067 = fieldWeight in 1339, product of:
              4.690416 = tf(freq=22.0), with freq of:
                22.0 = termFreq=22.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03125 = fieldNorm(doc=1339)
        0.06526195 = product of:
          0.1305239 = sum of:
            0.1305239 = weight(_text_:aufsatzsammlung in 1339) [ClassicSimilarity], result of:
              0.1305239 = score(doc=1339,freq=8.0), product of:
                0.2250708 = queryWeight, product of:
                  6.5610886 = idf(docFreq=169, maxDocs=44218)
                  0.03430388 = queryNorm
                0.57992375 = fieldWeight in 1339, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  6.5610886 = idf(docFreq=169, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1339)
          0.5 = coord(1/2)
      0.16666667 = coord(2/12)
    
    Abstract
    Will there be a library catalogue in the future and, if so, what will it look like? In the last 25 years, the library catalogue has undergone an evolution, from card catalogues to OPACs, discovery systems and even linked data applications making library bibliographic data accessible on the web. At the same time, users expectations of what catalogues will be able to offer in the way of discovery have never been higher. This groundbreaking edited collection brings together some of the foremost international cataloguing practitioners and thought leaders, including Lorcan Dempsey, Emmanuelle Bermès, Marshall Breeding and Karen Calhoun, to provide an overview of the current state of the art of the library catalogue and look ahead to see what the library catalogue might become. Practical projects and cutting edge concepts are showcased in discussions of linked data and the Semantic Web, user expectations and needs, bibliographic control, the FRBRization of the catalogue, innovations in search and retrieval, next-generation discovery products and mobile catalogues.
    Content
    Foreword - Marshall Breeding Introduction - Sally Chambers 1. Next generation catalogues: what do users think? - Anne Christensen 2. Making search work for the library user - Till Kinstler 3. Next-generation discovery: an overview of the European Scene - Marshall Breeding 4. The mobile library catalogue - Lukas Koster and Driek Heesakkers 5. FRBRizing your catalogue - Rosemie Callewaert 6. Enabling your catalogue for the semantic web - Emmanuelle Bermes 7. Supporting digital scholarship: bibliographic control, library co-operatives and open access repositories - Karen Calhoun 8. Thirteen ways of look at the libraries, discovery and the catalogue: scale, workflow, attention - Lorcan Dempsey.
    LCSH
    Online library catalogs / Web 2.0 / Semantic Web
    RSWK
    Bibliothekskatalog / Discovery Service / Functional Requirements for Bibliographic Records / Semantic Web / Aufsatzsammlung
    Online-Katalog / Zukunft / Discovery Service / Functional Requirements for Bibliographic Records / Semantic Web / Aufsatzsammlung
    Subject
    Bibliothekskatalog / Discovery Service / Functional Requirements for Bibliographic Records / Semantic Web / Aufsatzsammlung
    Online-Katalog / Zukunft / Discovery Service / Functional Requirements for Bibliographic Records / Semantic Web / Aufsatzsammlung
    Online library catalogs / Web 2.0 / Semantic Web
  8. Denning, R.; Shuttleworth, M.; Smith, P.: Interface design concepts in the development of a Web-based information retrieval system (1998) 0.02
    0.01963856 = product of:
      0.07855424 = sum of:
        0.032292992 = weight(_text_:web in 1936) [ClassicSimilarity], result of:
          0.032292992 = score(doc=1936,freq=2.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.2884563 = fieldWeight in 1936, 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=1936)
        0.016184142 = weight(_text_:information in 1936) [ClassicSimilarity], result of:
          0.016184142 = score(doc=1936,freq=6.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.2687516 = fieldWeight in 1936, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=1936)
        0.030077105 = weight(_text_:system in 1936) [ClassicSimilarity], result of:
          0.030077105 = score(doc=1936,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.27838376 = fieldWeight in 1936, 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=1936)
      0.25 = coord(3/12)
    
    Abstract
    Präsentation folgender Gestaltungsprinzipien: (1) Help the user develop an understanding of the operation of the interface and the search process; (2) Provide information to help users judge the value of continuing a search path; (3) Assist the user in refining the search query or search topic; (4) Provide verbal labels suggestive of meaning
    Source
    Bulletin of the American Society for Information Science. 24(1998), April/May, S.17-20
  9. Tennant, R.: Library catalogs : the wrong solution (2003) 0.02
    0.019625472 = product of:
      0.07850189 = sum of:
        0.03425189 = weight(_text_:web in 1558) [ClassicSimilarity], result of:
          0.03425189 = score(doc=1558,freq=16.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = 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)
        0.008582937 = weight(_text_:information in 1558) [ClassicSimilarity], result of:
          0.008582937 = score(doc=1558,freq=12.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.14252704 = fieldWeight in 1558, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1558)
        0.03566706 = weight(_text_:system in 1558) [ClassicSimilarity], result of:
          0.03566706 = score(doc=1558,freq=20.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.33012256 = fieldWeight in 1558, product of:
              4.472136 = tf(freq=20.0), with freq of:
                20.0 = termFreq=20.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1558)
      0.25 = coord(3/12)
    
    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."
  10. Jansen, B.J.; Pooch , U.: ¬A review of Web searching studies and a framework for future research (2001) 0.02
    0.019460129 = product of:
      0.077840514 = sum of:
        0.03996054 = weight(_text_:web in 5186) [ClassicSimilarity], result of:
          0.03996054 = score(doc=5186,freq=4.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.35694647 = fieldWeight in 5186, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5186)
        0.0115625085 = weight(_text_:information in 5186) [ClassicSimilarity], result of:
          0.0115625085 = score(doc=5186,freq=4.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.1920054 = fieldWeight in 5186, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5186)
        0.026317468 = weight(_text_:system in 5186) [ClassicSimilarity], result of:
          0.026317468 = score(doc=5186,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.2435858 = fieldWeight in 5186, 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=5186)
      0.25 = coord(3/12)
    
    Abstract
    Jansen and Pooch review three major search engine studies and compare them to three traditional search system studies and three OPAC search studies, to determine if user search characteristics differ. The web search engine studies indicate that most searchers use two, two search term queries per session, no boolean operators, and look only at the top ten items returned, while reporting the location of relevant information. In traditional search systems we find seven to 16 queries of six to nine terms, while about ten documents per session were viewed. The OPAC studies indicated two to five queries per session of two or less terms, with Boolean search about 1% and less than 50 documents viewed.
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.3, S.235-246
  11. Chen, H.-M.; Cooper, M.D.: Stochastic modeling of usage patterns in a Web-based information system (2002) 0.02
    0.019274686 = product of:
      0.07709874 = sum of:
        0.027966553 = weight(_text_:web in 577) [ClassicSimilarity], result of:
          0.027966553 = score(doc=577,freq=6.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.24981049 = fieldWeight in 577, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03125 = fieldNorm(doc=577)
        0.009343918 = weight(_text_:information in 577) [ClassicSimilarity], result of:
          0.009343918 = score(doc=577,freq=8.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.1551638 = fieldWeight in 577, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=577)
        0.039788272 = weight(_text_:system in 577) [ClassicSimilarity], result of:
          0.039788272 = score(doc=577,freq=14.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.36826712 = fieldWeight in 577, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03125 = fieldNorm(doc=577)
      0.25 = coord(3/12)
    
    Abstract
    Users move from one state (or task) to another in an information system's labyrinth as they try to accomplish their work, and the amount of time they spend in each state varies. This article uses continuous-time stochastic models, mainly based on semi-Markov chains, to derive user state transition patterns (both in rates and in probabilities) in a Web-based information system. The methodology was demonstrated with 126,925 search sessions drawn from the transaction logs of the University of California's MELVYL® library catalog system (www.melvyLucop.edu). First, user sessions were categorized into six groups based on their similar use of the system. Second, by using a three-layer hierarchical taxonomy of the system Web pages, user sessions in each usage group were transformed into a sequence of states. All the usage groups but one have third-order sequential dependency in state transitions. The sole exception has fourth-order sequential dependency. The transition rates as well as transition probabilities of the semi-Markov model provide a background for interpreting user behavior probabilistically, at various levels of detail. Finally, the differences in derived usage patterns between usage groups were tested statistically. The test results showed that different groups have distinct patterns of system use. Knowledge of the extent of sequential dependency is beneficial because it allows one to predict a user's next move in a search space based on the past moves that have been made. It can also be used to help customize the design of the user interface to the system to facilitate interaction. The group CL6 labeled "knowledgeable and sophisticated usage" and the group CL7 labeled "unsophisticated usage" both had third-order sequential dependency and had the same most-frequently occurring search pattern: screen display, record display, screen display, and record display. The group CL8 called "highly interactive use with good search results" had fourth-order sequential dependency, and its most frequently occurring pattern was the same as CL6 and CL7 with one more screen display action added. The group CL13, called "known-item searching" had third-order sequential dependency, and its most frequently occurring pattern was index access, search with retrievals, screen display, and record display. Group CL14 called "help intensive searching," and CL18 called "relatively unsuccessful" both had thirdorder sequential dependency, and for both groups the most frequently occurring pattern was index access, search without retrievals, index access, and again, search without retrievals.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.7, S.536-548
  12. Rieh, S.Y.; Kim, Y.-M.; Markey, K.: Amount of invested mental effort (AIME) in online searching (2012) 0.02
    0.018802458 = product of:
      0.07520983 = sum of:
        0.04036624 = weight(_text_:web in 2726) [ClassicSimilarity], result of:
          0.04036624 = score(doc=2726,freq=8.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.36057037 = fieldWeight in 2726, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2726)
        0.008258934 = weight(_text_:information in 2726) [ClassicSimilarity], result of:
          0.008258934 = score(doc=2726,freq=4.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.13714671 = fieldWeight in 2726, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2726)
        0.026584659 = weight(_text_:system in 2726) [ClassicSimilarity], result of:
          0.026584659 = score(doc=2726,freq=4.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.24605882 = fieldWeight in 2726, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2726)
      0.25 = coord(3/12)
    
    Abstract
    This research investigates how people's perceptions of information retrieval (IR) systems, their perceptions of search tasks, and their perceptions of self-efficacy influence the amount of invested mental effort (AIME) they put into using two different IR systems: a Web search engine and a library system. It also explores the impact of mental effort on an end user's search experience. To assess AIME in online searching, two experiments were conducted using these methods: Experiment 1 relied on self-reports and Experiment 2 employed the dual-task technique. In both experiments, data were collected through search transaction logs, a pre-search background questionnaire, a post-search questionnaire and an interview. Important findings are these: (1) subjects invested greater mental effort searching a library system than searching the Web; (2) subjects put little effort into Web searching because of their high sense of self-efficacy in their searching ability and their perception of the easiness of the Web; (3) subjects did not recognize that putting mental effort into searching was something needed to improve the search results; and (4) data collected from multiple sources proved to be effective for assessing mental effort in online searching.
    Source
    Information processing and management. 48(2012) no.6, S.1136-1150
  13. Bertelmann, R.; Höhnow, T.; Volz, S.: Bibliothekssuchmaschine statt Bibliothekskatalog (2007) 0.02
    0.018583974 = product of:
      0.074335895 = sum of:
        0.016146496 = weight(_text_:web in 761) [ClassicSimilarity], result of:
          0.016146496 = score(doc=761,freq=2.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.14422815 = fieldWeight in 761, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03125 = fieldNorm(doc=761)
        0.004671959 = weight(_text_:information in 761) [ClassicSimilarity], result of:
          0.004671959 = score(doc=761,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.0775819 = fieldWeight in 761, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=761)
        0.05351744 = weight(_text_:suche in 761) [ClassicSimilarity], result of:
          0.05351744 = score(doc=761,freq=4.0), product of:
            0.17138755 = queryWeight, product of:
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.03430388 = queryNorm
            0.31225976 = fieldWeight in 761, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.03125 = fieldNorm(doc=761)
      0.25 = coord(3/12)
    
    Abstract
    Google und Konsorten haben das Suchverhalten unserer Nutzer grundlegend verändert. Erwartet wird eine Suche, die einfach, unkompliziert und übersichtlich sein soll. Längst haben Bibliotheken und Anbieter von Bibliothekssystemen darauf reagiert und die Suchoberflächen entschlackt. Trotzdem sehen viele Bibliothekskataloge nach wie vor wie "Bibliothekskataloge" aus. Letztlich versuchen viele der Suchmasken immer noch die Vielfalt der erfassten Metadaten und die daraus resultierenden differenzierten Suchmöglichkeiten den Nutzern auf den ersten Blick nahe zu bringen. Das geht, was zahlreiche Studien belegen, häufig an den Bedürfnissen der Nutzer vorbei: Diese wünschen sich einen einfachen und schnellen Zugriff auf die für sie relevante Information. Bibliothekskataloge sind längst nicht mehr nur Bestandsverzeichnisse, sondern Zugangssysteme zur Vielfalt der von der Bibliothek vermittelten Informationen. Auch hier bieten Systemhäuser inzwischen Lösungen an, bei denen im Sinn einer verteilten Suche weitere Quellen mit einbezogen werden können. Im Folgenden soll der Lösungsweg vorgestellt werden, den die Bibliothek des Wissenschaftsparks Albert Einstein in Zusammenarbeit mit dem Kooperativen Bibliotheksverbund Berlin-Brandenburg (KOBV) eingeschlagen hat, um mit diesen beiden veränderten Grundvoraussetzungen für ihr Serviceangebot umzugehen. Die Bibliothek des Wissenschaftsparks Albert Einstein - eine gemeinsame Bibliothek des GeoForschungsZentrums Potsdam, der Forschungsstelle Potsdam des Alfred Wegener Instituts für Polar- und Meeresforschung (zwei Helmholtz-Zentren) und des Potsdam-Instituts für Klimafolgenforschung (ein Leibniz-Institut) - ist eine Spezialbibliothek mit dem thematischen Schwerpunkt Geowissenschaften auf dem größten Campus der außeruniversitären Forschung in Brandenburg, dem Wissenschaftspark Albert Einstein auf dem Telegrafenberg in Potsdam.
    Der KOBV setzt bereits seit 2005 Suchmaschinentechnologie in verschiedenen Entwicklungsprojekten erfolgreich ein. Zusammen mit der Bibliothek des Wissenschaftsparks Albert Einstein wurde nun der Prototyp einer "Bibliothekssuchmaschine" auf Basis erprobter Open-Source-Technologien aus dem Java-Umfeld (wie Tomcat, Jakarta-Commons, Log4J usw.) als web-basierte Anwendung realisiert, deren Suchmaschinenkern auf der ebenfalls als freie Open-Source Java-Variante erhältlichen Search-Engine-Library Lucene4 basiert. Die erste Version der Bibliothekssuchmaschine läuft seit Ende Oktober im Echtbetrieb. Ziel des Pilotprojektes war die Konzeptionierung, Spezifikation und Implementierung einer neuen, benutzerfreundlichen Suchoberfläche zum schnellen Auffinden fachwissenschaftlich relevanter Daten und Informationen, sowohl in bibliothekseigenen Beständen als auch in zusätzlichen Quellen. Vor dem spezifischen Hintergrund der Spezialbibliothek werden dabei nicht nur Kataloginhalte google-like findbar gemacht, sondern der Suchraum "Katalog" um weitere für die Informationsvermittlung auf dem Campus relevante und spezifische fachwissenschaftliche Inhalte als zusätzliche Suchräume erschlossen. Die neue Anwendung dient dem schnellen Ersteinstieg und leitet die Nutzer dann an die jeweiligen Quellen weiter.
  14. Slone, D.J.: ¬The influence of mental models and goals on search patterns during Web interaction (2002) 0.02
    0.018519122 = product of:
      0.07407649 = sum of:
        0.049438346 = weight(_text_:web in 5229) [ClassicSimilarity], result of:
          0.049438346 = score(doc=5229,freq=12.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = 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)
        0.0058399485 = weight(_text_:information in 5229) [ClassicSimilarity], result of:
          0.0058399485 = score(doc=5229,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.09697737 = fieldWeight in 5229, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5229)
        0.018798191 = weight(_text_:system in 5229) [ClassicSimilarity], result of:
          0.018798191 = score(doc=5229,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.17398985 = fieldWeight in 5229, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5229)
      0.25 = coord(3/12)
    
    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.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1152-1169
  15. Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009) 0.02
    0.018300444 = product of:
      0.073201776 = sum of:
        0.024219744 = weight(_text_:web in 3851) [ClassicSimilarity], result of:
          0.024219744 = score(doc=3851,freq=2.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = 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)
        0.009910721 = weight(_text_:information in 3851) [ClassicSimilarity], result of:
          0.009910721 = score(doc=3851,freq=4.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.16457605 = fieldWeight in 3851, 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=3851)
        0.039071307 = weight(_text_:system in 3851) [ClassicSimilarity], result of:
          0.039071307 = score(doc=3851,freq=6.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.36163113 = fieldWeight in 3851, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.046875 = fieldNorm(doc=3851)
      0.25 = coord(3/12)
    
    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.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  16. Auto-Graphics to provide Web-based solutions to Ohio, Illinois libraries (1998) 0.02
    0.017928503 = product of:
      0.071714014 = sum of:
        0.032292992 = weight(_text_:web in 2232) [ClassicSimilarity], result of:
          0.032292992 = score(doc=2232,freq=2.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.2884563 = fieldWeight in 2232, 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=2232)
        0.009343918 = weight(_text_:information in 2232) [ClassicSimilarity], result of:
          0.009343918 = score(doc=2232,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.1551638 = fieldWeight in 2232, 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=2232)
        0.030077105 = weight(_text_:system in 2232) [ClassicSimilarity], result of:
          0.030077105 = score(doc=2232,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.27838376 = fieldWeight in 2232, 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=2232)
      0.25 = coord(3/12)
    
    Abstract
    Auto-Graphics, California, has been chosen to establish an Internet and WWW accessible catalogue that combines the holdings the state Library of Ohio and 4 regional libraries for the purpose of sharing resources among more than 100 of the state's 250 public library systems. The company has also been selected by the North Suburban Library System, a consortium of 600 public, school academic and special libraries in the suburbs of Chicago. The AccessOhio project utilizes the Ohio Public Library Information Network
  17. Oehlschläger, S.: Aus der 48. Sitzung der Arbeitsgemeinschaft der Verbundsysteme am 12. und 13. November 2004 in Göttingen (2005) 0.02
    0.017743474 = product of:
      0.070973895 = sum of:
        0.014271622 = weight(_text_:web in 3556) [ClassicSimilarity], result of:
          0.014271622 = score(doc=3556,freq=4.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.12748088 = fieldWeight in 3556, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.01953125 = fieldNorm(doc=3556)
        0.047303177 = weight(_text_:suche in 3556) [ClassicSimilarity], result of:
          0.047303177 = score(doc=3556,freq=8.0), product of:
            0.17138755 = queryWeight, product of:
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.03430388 = queryNorm
            0.27600124 = fieldWeight in 3556, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.01953125 = fieldNorm(doc=3556)
        0.009399096 = weight(_text_:system in 3556) [ClassicSimilarity], result of:
          0.009399096 = score(doc=3556,freq=2.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.08699492 = fieldWeight in 3556, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.01953125 = fieldNorm(doc=3556)
      0.25 = coord(3/12)
    
    Content
    Enthält u.a. folgende Aussagen aus einzelnen Bibliotheken oder Verbünden: MARC21 als Austauschformat Die Expertengruppe Datenformate des Standardisierungsausschusses hat am 11. April 2005 getagt, dabei wurden die Arbeitspakete aus einem von der Arbeitsstelle für Standardisierung Der Deutschen Bibliothek vorgelegten Projektund Zeitplan in überschaubare Einheiten aufgegliedert. Ziel ist es, das bestehende MARC21 weitgehend zu übernehmen. Sollten nationale Abweichungen von MARC21 dennoch notwendig sein, so müssen diese einheitlich für alle Verbünde gelten. Bibliotheksservicezentrum Baden-Württemberg (BSZ) SWBPIus "Catalogue enrichment", die Anreicherung von Katalogdaten durch ergänzende Materialien, wie z. B. Rezensionen und Inhaltsverzeichnisse, wird als eine der wichtigsten Möglichkeiten diskutiert, die Nutzung von OPACs zu erleichtern und zu verbessern. Ganz im Trend liegt daher die Anwendung SWBplus, in der das BSZ weiterführende Texte zu Titeln in Verbund- und lokalen OPACs auflegt. Nach ca. 2.500 Dokumenten im Jahr 2003 ist der Bestand mittlerweile bei 12.300 angelangt. Mit 6.900 haben dabei die Inhaltsverzeichnisse die Rezensionen anteilsmäßig überholt. Erreicht wurde dies durch die Mitarbeit der Universitätsbibliotheken Konstanz und Heidelberg, die Inhaltsverzeichnisse scannen und an das BSZ liefern. In diese Kooperation werden nun auch die Universitätsbibliothek Mannheim, die Bibliotheken der PH Ludwigsburg und PH Freiburg sowie die Bibliothek des Bundesgerichtshofs in Karlsruhe eintreten. Vorbereitet wird zudem die Zusammenarbeit mit dem Bibliotheksverbund Bayern, so dass Inhaltsverzeichnisse auch aus Bayern in die Datenbank eingebracht und gemeinsam genutzt werden können. Fehlertolerante Suche in OPACs Gemeinsam mit der Bibliothek der Fachhochschule Konstanz und der Firma exorbyte führt das BSZ derzeit einen Test durch, in dem OPAC-Nutzer bei Unsicherheiten hinsichtlich der Schreibweise von Suchbegriffen unterstützt werden. Dazu wurde dem Horizon-WebPac der FH Konstanz die RechercheSoftware Matchmaker vorgeschaltet, die dem Nutzer neben exakten auch näherungsweise Treffer sowie Alternativen zu den Suchbegriffen anbietet. Sucht man dort nun z. B. nach "Pronnstein", so findet man dennoch unter den ersten Treffern die bekannte mathematische Formelsammlung von Ilja Bronstejn. In einer Befragung, die den Test begleitet, fanden ca. 70% der Nutzer den Einsatz dieser Technologie hilfreich und gaben an, auch die Alternativvorschläge zu nutzen. Weitere Informationen stehen unter der Adresse http://cms.bsz-bw.de/cms/entwicki/ftolsuche/ zur Verfügung. Interessenten an einem Einsatz der Software melden sich bitte beim BSZ, das die Einführung koordiniert.
    Die Deutsche Bibliothek Retrieval von Content In dem Projekt wird angestrebt, Verfahren zu entwickeln und einzuführen, die automatisch und ohne intellektuelle Bearbeitung für das Content-Retrieval ausreichend Sucheinstiege bieten. Dabei kann es sich um die Suche nach Inhalten von Volltexten, digitalen Abbildern, Audiofiles, Videofiles etc. von in Der Deutschen Bibliothek archivierten digitalen Ressourcen oder digitalen Surrogaten archivierter analoger Ressourcen (z. B. OCR-Ergebnisse) handeln. Inhalte, die in elektronischer Form vorhanden sind, aber dem InternetBenutzer Der Deutschen Bibliothek bisher nicht oder nur eingeschränkt zur Verfügung stehen, sollen in möglichst großem Umfang und mit möglichst großem Komfort nutzbar gemacht werden. Darüber hinaus sollen Inhalte benutzt werden, die für ein in ILTIS katalogisiertes Objekt beschreibenden Charakter haben, um auf das beschriebene Objekt zu verweisen. Die höchste Priorität liegt dabei auf der Erschließung von Inhalten in Textformaten. In einem ersten Schritt wurde der Volltext aller Zeitschriften, die im Projekt "Exilpresse digital" digitalisiert wurden, für eine erweiterte Suche genutzt. In einem nächsten Schritt soll die PSI-Software für die Volltextindexierung von Abstracts evaluiert werden. MILOS Mit dem Einsatz von MILOS eröffnet sich die Möglichkeit, nicht oder wenig sachlich erschlossene Bestände automatisch mit ergänzenden Inhaltserschließungsinformationen zu versehen, der Schwerpunkt liegt dabei auf der Freitext-Indexierung. Das bereits in einigen Bibliotheken eingesetzte System, das inzwischen von Der Deutschen Bibliothek für Deutschland lizenziert wurde, wurde in eine UNIX-Version überführt und angepasst. Inzwischen wurde nahezu der gesamte Bestand rückwirkend behandelt, die Daten werden im Gesamt-OPAC für die Recherche zur Verfügung stehen. Die in einer XMLStruktur abgelegten Indexeinträge werden dabei vollständig indexiert und zugänglich gemacht. Ein weiterer Entwicklungsschritt wird in dem Einsatz von MILOS im Online-Verfahren liegen.
    Hessisches BibliotheksinformationsSystem (HEBIS) Personennamendatei (PND) Vor dem Hintergrund der Harmonisierungsbestrebungen bei den Normdateien hat der HeBIS-Verbundrat nach erneuter Diskussion mehrheitlich entschieden, künftig neben SWD und GKD auch die PND als in HeBIS integrierte Normdatei obligatorisch zu nutzen. Im Zuge der wachsenden Vernetzung der regionalen Verbundsysteme kommt der Homogenität der Datensätze eine zunehmend wichtigere Bedeutung zu. Konkret wird dies speziell für HeBIS mit dem Produktionsbeginn des HeBIS-Portals und der integrierten verbundübergreifenden Fernleihe. Nur wenn die Verfasserrecherche in den einzelnen Verbunddatenbanken auf weitgehend einheitliche Datensätze einschließlich Verweisungsformen trifft, kann der Benutzer gute Trefferergebnisse erwarten und damit seine Chancen erhöhen, die gewünschte Literatur über Fernleihe bestellen zu können. Das Gesamtkonzept ist ausgelegt auf eine pragmatische und aufwandsreduzierte Vorgehensweise. Mit der Umsetzung wurde begonnen. Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen (HBZ) FAST-Suchmaschine Das HBZ hat die Suchmaschinentechnologie des norwegischen Herstellers FAST lizenziert. Ziel ist es, die Produkte des HBZ mit Hilfe innovativer Suchmaschinentechnologien in einer neuen Ausrichtung zu präsentieren. Die Präsentation soll einen schnellen Recherche-Zugang zu den NRWVerbunddaten mittels FAST-Suchmaschinentechnologie mit folgenden Eigenschaften beinhalten: - Eine Web-Oberfläche, um für Laien eine schnelle Literatursuche anbieten zu können. - Eine Web-Oberfläche, um für Expertinnen und Experten eine schnelle Literatur-Suche anbieten zu können. - Präsentation von Zusatzfunktionen, die in gängigen Bibliothekskatalogen so nicht vorhanden sind. - Schaffung einer Zugriffsmöglichkeit für den KVK auf die Verbunddaten mit sehr kurzen Antwortzeiten Digitale Bibliothek Die Mehrzahl der Bibliotheken ist inzwischen auf Release 5 umgezogen. Einige befinden sich noch im Bearbeitungsstatus. Von den letzten drei Bibliotheken liegen inzwischen die Umzugsanträge vor. Durch die Umstrukturierung der RLB Koblenz zum LBZ Rheinland-Pfalz werden die Einzelsichten der RLB Koblenz, PLB Speyer und der Bipontina in Zweibrücken mit den Büchereistellen Koblenz und Neustadt zu einer Sicht verschmolzen.
  18. Dijk, J.v.: Foundation, de basis voor een successvolle klantenbenadering : nieuw catalogusconcept op basis van wensprofielen (1995) 0.02
    0.01750652 = product of:
      0.07002608 = sum of:
        0.008175928 = weight(_text_:information in 4696) [ClassicSimilarity], result of:
          0.008175928 = score(doc=4696,freq=2.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.13576832 = fieldWeight in 4696, 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=4696)
        0.045583192 = weight(_text_:system in 4696) [ClassicSimilarity], result of:
          0.045583192 = score(doc=4696,freq=6.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.42190298 = fieldWeight in 4696, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4696)
        0.016266957 = product of:
          0.032533914 = sum of:
            0.032533914 = weight(_text_:22 in 4696) [ClassicSimilarity], result of:
              0.032533914 = score(doc=4696,freq=2.0), product of:
                0.120126344 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03430388 = queryNorm
                0.2708308 = fieldWeight in 4696, 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=4696)
          0.5 = coord(1/2)
      0.25 = coord(3/12)
    
    Abstract
    At Limburg Provincial Central Library and Information Service in the Netherlands the online public catalogue has been replaced by a new system, Foundation. The OPAC network was an automated version of the card catalogue, whereas Foundation has been developed entirely from scratch. The system runs on Windows software and assists even inexperienced users to formulate suitable search strategies. The system accepts online catalogue records from other sources and has attracted considerable intersts from several areas, including the publishing industry
    Source
    Bibliotheek en samenleving. 23(1995) no.6, S.20-22
  19. Hauer, M.: Neue OPACs braucht das Land ... dandelon.com (2006) 0.02
    0.017415984 = product of:
      0.1044959 = sum of:
        0.024219744 = weight(_text_:web in 6047) [ClassicSimilarity], result of:
          0.024219744 = score(doc=6047,freq=2.0), product of:
            0.111951075 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.03430388 = queryNorm
            0.21634221 = fieldWeight in 6047, 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=6047)
        0.080276154 = weight(_text_:suche in 6047) [ClassicSimilarity], result of:
          0.080276154 = score(doc=6047,freq=4.0), product of:
            0.17138755 = queryWeight, product of:
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.03430388 = queryNorm
            0.46838963 = fieldWeight in 6047, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.996156 = idf(docFreq=812, maxDocs=44218)
              0.046875 = fieldNorm(doc=6047)
      0.16666667 = coord(2/12)
    
    Abstract
    In dandelon.com werden im Gegensatz zu den bisherigen Federated Search-Portal-Ansätzen die Titel von Medien neu mittels intelligentCAPTURE dezentral und kollaborativ erschlossen und inhaltlich stark erweitert. intelligentCAPTURE erschließt maschinell bisher Buchinhaltsverzeichnisse, Bücher, Klappentexte, Aufsätze und Websites, übernimmt bibliografische Daten aus Bibliotheken (XML, Z.39.50), von Verlagen (ONIX + Cover Pages), Zeitschriftenagenturen (Swets) und Buchhandel (SOAP) und exportierte maschinelle Indexate und aufbereitete Dokumente an die Bibliothekskataloge (MAB, MARC, XML) oder Dokumentationssysteme, an dandelon.com und teils auch an Fachportale. Die Daten werden durch Scanning und OCR, durch Import von Dateien und Lookup auf Server und durch Web-Spidering/-Crawling gewonnen. Die Qualität der Suche in dandelon.com ist deutlich besser als in bisherigen Bibliothekssystemen. Die semantische, multilinguale Suche mit derzeit 1,2 Millionen Fachbegriffen trägt zu den guten Suchergebnissen stark bei.
  20. Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The design of a graphical user interface for a highly interactive information retrieval system (1996) 0.02
    0.01691165 = product of:
      0.0676466 = sum of:
        0.014161124 = weight(_text_:information in 6958) [ClassicSimilarity], result of:
          0.014161124 = score(doc=6958,freq=6.0), product of:
            0.060219705 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03430388 = queryNorm
            0.23515764 = fieldWeight in 6958, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6958)
        0.03721852 = weight(_text_:system in 6958) [ClassicSimilarity], result of:
          0.03721852 = score(doc=6958,freq=4.0), product of:
            0.10804188 = queryWeight, product of:
              3.1495528 = idf(docFreq=5152, maxDocs=44218)
              0.03430388 = queryNorm
            0.34448233 = fieldWeight in 6958, 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=6958)
        0.016266957 = product of:
          0.032533914 = sum of:
            0.032533914 = weight(_text_:22 in 6958) [ClassicSimilarity], result of:
              0.032533914 = score(doc=6958,freq=2.0), product of:
                0.120126344 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03430388 = queryNorm
                0.2708308 = fieldWeight in 6958, 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=6958)
          0.5 = coord(1/2)
      0.25 = coord(3/12)
    
    Abstract
    Reports on the design of a GUI for the Okapi 'best match' retrieval system developed at the Centre for Interactive Systems Research, City University, UK, for online library catalogues. The X-Windows interface includes an interactive query expansion (IQE) facilty which involves the user in the selection of query terms to reformulate a search. Presents the design rationale, based on a game board metaphor, and describes the features of each of the stages of the search interaction. Reports on the early operational field trial and discusses relevant evaluation issues and objectives
    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

Authors

Years

Languages

Types

  • a 635
  • s 20
  • el 19
  • m 18
  • r 12
  • x 9
  • b 3
  • h 2
  • d 1
  • p 1
  • More… Less…

Subjects