Search (33 results, page 2 of 2)

  • × theme_ss:"Katalogfragen allgemein"
  • × year_i:[1990 TO 2000}
  1. Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998) 0.01 
    0.011268772 = product of:
  0.022537544 = sum of:
    0.022537544 = product of:
      0.04507509 = sum of:
        0.04507509 = weight(_text_:online in 1788) [ClassicSimilarity], result of:
          0.04507509 = score(doc=1788,freq=4.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.284522 = fieldWeight in 1788, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.046875 = fieldNorm(doc=1788)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Reports results of an analysis of 205 randomly selected records from the OCLC OLUC, to test the assumption that online catalogues have greatly improved subject searching capabilities, over card catalogues, by making other fields in the records searchable as subject access points (SAPs). Results showed considerable overlap (duplication) among the SAPs provided by the title, subject heading and classification number fields. On average, little more than 4 unique, unduplicated access points were found per record. Where title and classification number fields do add some access points not provided by subject headings, the increase is less than many librarians might be expected. Suggests that OPACs might outperform catalogues more in precision than in recall by allowing greater discrimination in searching; terms from different fields may be combined; titles offer greater specifity; searches can be limited by date, language or other criteria
  2. Barrett, B.B.: Hit rates with the OCLC CD450 cataloging system : a test with recent, academic approval books (1990) 0.01 
    0.011268772 = product of:
  0.022537544 = sum of:
    0.022537544 = product of:
      0.04507509 = sum of:
        0.04507509 = weight(_text_:online in 504) [ClassicSimilarity], result of:
          0.04507509 = score(doc=504,freq=4.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.284522 = fieldWeight in 504, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.046875 = fieldNorm(doc=504)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The work begins by reviewing publications on the use of optical-disc technology in cataloging departments. This section includes descriptive information on specific products and comparative considerations on the value of the CD genre. Most commentary to date seems to find cost advantages to the optical format for smaller libraries but fewer attractions for larger institutions who would lose online immediacy. An outline of the design and results of the OCLC test follows along with various tables showing the class makeup of the overall sample, the hit-rate for the two vendors, and other data. Most of the sample consisted of English-language titles that would support the general academic mission of a variety of disciplines. Well over 90% of the titles searched had MARC records on discs within two issues or three months. Although concluding that departments acquiring over 5000 titles per year may find online utilities more effective, the article still urges a careful analysis of laser cataloging products with a variety of acquisition samples and for a variety of libraries.
  3. Miller, H.S.: ¬The little locksmith : a cautionary tale for the electronic age (1997) 0.01 
    0.0106243 = product of:
  0.0212486 = sum of:
    0.0212486 = product of:
      0.0424972 = sum of:
        0.0424972 = weight(_text_:online in 2403) [ClassicSimilarity], result of:
          0.0424972 = score(doc=2403,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.2682499 = fieldWeight in 2403, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=2403)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Technology offers an unparalleled opportunity to preserve information and to provide superior means of locating it. While acknowledging the need for enhanced access to new publications, highlights the limitations of both online catalogue design and lack of data, through an illustraive case study. Emphasizes the technical and cultural importance of providing enriched access to older materials and suggests how additional subject headings and summaries could provide that access
  4. Frost, C.O.: Next-generation online public access catalogs : redefining territory and roles (1994) 0.01 
    0.0106243 = product of:
  0.0212486 = sum of:
    0.0212486 = product of:
      0.0424972 = sum of:
        0.0424972 = weight(_text_:online in 5527) [ClassicSimilarity], result of:
          0.0424972 = score(doc=5527,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.2682499 = fieldWeight in 5527, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=5527)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  5. Jett, M.; Reuse, B.; Kessling, G.: Implementation of an online database for tables of contents of books (1998) 0.01 
    0.009390644 = product of:
  0.018781288 = sum of:
    0.018781288 = product of:
      0.037562575 = sum of:
        0.037562575 = weight(_text_:online in 1861) [ClassicSimilarity], result of:
          0.037562575 = score(doc=1861,freq=4.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.23710167 = fieldWeight in 1861, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1861)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Many small libraries do not have the resources to build a holdings database but the availability of affordable scanners and improved OCR software has made possible a new approach for creating online databases. Describes the work undertaken at the Otto Hahn Library of the Max Planck Institute for Biophysical Chemistry, Germany, to create a database consisting of the titles, bibliographic descriptions and contents tables of books acquired by the library. The book information and table of contents pages are scanned and converted to text using OCR software. A computer program is used to extract as much information as possible, in particular from the CIP data with corrections and missing information being supplied manually. Finally, the information, which consists of: title; author; ISBN; publication year; call number; series; language; and other relevant information for books, as well as the entire table of contents, is stored and added to an Ovid database using the Ovid Local Loader software. Pays particular attention to the algorithm used to extract specific information from the CIP data. 2 OCR software packeges have been tested: OmniPage Pro 7.0 and FineReader 3.0. Experience has shown that FineReader is better at character recognition and retains the formatting better but OmniPage Pro is easier to train to recognize special characters
  6. Tyckoson, D.: State of the catalog : Part 2: changes at the Middletown University Library (1997) 0.01 
    0.009296263 = product of:
  0.018592525 = sum of:
    0.018592525 = product of:
      0.03718505 = sum of:
        0.03718505 = weight(_text_:online in 700) [ClassicSimilarity], result of:
          0.03718505 = score(doc=700,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.23471867 = fieldWeight in 700, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=700)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    2nd in a series focusing on the catalogue as an index to the materials in the library collection. Reviews changes in the Middletown University Library, Louisiana, USA, library collection 1987-97. Covers: collection growth, catalogue expansion, and the results of linking databases to the online catalogue. Although integrating electronic databases has helped in solving the problem of the catalogue as an index to the collection it has also created new problems as today's catalogues use records that have not been reviewed by local library staff and add indexing for materials that are not part of the catalogue
  7. Gödert, W.; Lepsky, K.: Semantische Umfeldsuche im Information Retrieval (1998) 0.01 
    0.009296263 = product of:
  0.018592525 = sum of:
    0.018592525 = product of:
      0.03718505 = sum of:
        0.03718505 = weight(_text_:online in 606) [ClassicSimilarity], result of:
          0.03718505 = score(doc=606,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.23471867 = fieldWeight in 606, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=606)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Sachliche Suchen in bibliothekarischen Online-Katalogen enden häufig mit unbefriedigenden Ergebnissen. Als eine Ursache dafür kann angesehen werden, daß die Gestaltung des Suchprozesses das semantische Umfeld einer Suchanfrage nicht mit einbezieht, daß in Übertragung der Verhältnisse in konventionellen Katalogen am Paradigma des Wort-Matching zwischen Suchwort und Indexat festgehalten wird. Es wird statt dessen das Konzept einer semantischen Umfeldsuche entwickelt und gezeigt, welche Rolle die Verwendung strukturierten Vokabulars dafür spielen kann. Insbesondere wird dargestellt, welche Möglichkeiten Verfahren der wörterbuchgestützten maschinellen Indexierung in diesem Zusammenhang spielen können. Die Ausführungen werden durch Beispiele illustriert
  8. Riemer, J.J.: CONSER'S aggregator survey and the work of the PCC Task Group (1999) 0.01 
    0.009296263 = product of:
  0.018592525 = sum of:
    0.018592525 = product of:
      0.03718505 = sum of:
        0.03718505 = weight(_text_:online in 5360) [ClassicSimilarity], result of:
          0.03718505 = score(doc=5360,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.23471867 = fieldWeight in 5360, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5360)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The author presents the results of the December 1998 CONSER "Survey on Providing Access to Serial Titles within Aggregator Databases." Major findings include 71% of respondents desiring to see full-text serial titles incorporated into the online catalog and nearly 75% interested in acquiring record sets. Also included are an analysis of the numerous survey comments received, strategies toward creating the necessary records and integrating them into OPACs, examples of aggregator analytic records, and other background information on the work of the Program for Cooperative Cataloging's Task Group on Journals in Aggregator Databases.
  9. Beheshti, J.: ¬The evolving OPAC (1997) 0.01 
    0.009296263 = product of:
  0.018592525 = sum of:
    0.018592525 = product of:
      0.03718505 = sum of:
        0.03718505 = weight(_text_:online in 5612) [ClassicSimilarity], result of:
          0.03718505 = score(doc=5612,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.23471867 = fieldWeight in 5612, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5612)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Advances in computer and communication technology technology have had an important impact on OPACs. The client server architecture model, the Internet, protocols, and standards such as Z39.50 have resulted in newly designed interfaces which reduce syntactic and semantic knowledge required to conduct effective online searches. Experimental OPACs have been developed in an attempt to assist users in conceptual transformation of their information needs into searchable queries. These experiments are based primarily on determining users' behaviour at the OPAC terminal, which needs much further study. Other non traditional models for storing and retrieving information should be considered to create an intuitive OPAC
  10. Stoker, D.: Computer cataloguing in retrospect (1997) 0.01 
    0.008840589 = product of:
  0.017681178 = sum of:
    0.017681178 = product of:
      0.035362355 = sum of:
        0.035362355 = weight(_text_:22 in 605) [ClassicSimilarity], result of:
          0.035362355 = score(doc=605,freq=2.0), product of:
            0.18279788 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05220068 = queryNorm
            0.19345059 = fieldWeight in 605, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=605)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    9. 2.1997 18:44:22
  11. Leazer, G.H.; Smiraglia, R.P.: Bibliographic families in the library catalog : a qualitative analysis and grounded theory (1999) 0.01 
    0.008840589 = product of:
  0.017681178 = sum of:
    0.017681178 = product of:
      0.035362355 = sum of:
        0.035362355 = weight(_text_:22 in 107) [ClassicSimilarity], result of:
          0.035362355 = score(doc=107,freq=2.0), product of:
            0.18279788 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05220068 = queryNorm
            0.19345059 = fieldWeight in 107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=107)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    10. 9.2000 17:38:22
  12. Horah, J.L.: from cards to the Web : ¬The evolution of a library database (1998) 0.01 
    0.0079682255 = product of:
  0.015936451 = sum of:
    0.015936451 = product of:
      0.031872902 = sum of:
        0.031872902 = weight(_text_:online in 4842) [ClassicSimilarity], result of:
          0.031872902 = score(doc=4842,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.20118743 = fieldWeight in 4842, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.046875 = fieldNorm(doc=4842)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The Jack Brause Library at New York University (NYU) is a special library supporting the curriculum of NYU's Real Estate Institute. The Jack Brause Library (JBL) Real estate Periodical Index was established in 1990 and draws on the library's collection of over 140 real estate periodicals. Describes the conversion of the JBL Index from a 3x5 card index to an online resource. The database was originally created using Rbase for DOS but this quickly became obsolete and in 1993 was replaced with InMagic. In 1997 the JBL Index was made available on NYU's telnet catalogue, BobCat, and the Internet database catalogue, BobCatPlus. The transition of InMagic data to USMARC formatted records involved a 3-step process: data normalization; adding value; and data recording. The Index has been operational through telnet since May 1997 and installing it onto the Web became functional in Oct 1997
  13. Tyckoson, D.A.: Enhancing access to information : building catalogs for the future (1991) 0.01 
    0.0079682255 = product of:
  0.015936451 = sum of:
    0.015936451 = product of:
      0.031872902 = sum of:
        0.031872902 = weight(_text_:online in 525) [ClassicSimilarity], result of:
          0.031872902 = score(doc=525,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.20118743 = fieldWeight in 525, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.046875 = fieldNorm(doc=525)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The catalogue as we know it today is the result of a long process of evolution, which began over 250 years ago. At that time, the catalogue served as an index to all materials within a library's collections. However, the tremendous growth in the amount of information produced and the proliferation of formats for that information have forced the catalogue to compromise its indexing function for virtually all formats except monographs. This trend has resulted in a de-emphasis of the catalogue as a tool for retrieving information. Fortunately, the technology of the online catalogue makes possible the reintegration of other information sources into the catalogue. Discusses the decline of the catalogue and proposes some areas in which it may be improved for the next century.

Authors

Languages

  • e 27
  • d 4
  • i 1
  • sp 1
  • More… Less…

Types

  • a 31
  • s 2
  • More… Less…

Themes