Search (3 results, page 1 of 1)

  • × author_ss:"Aalberg, T."
  • × theme_ss:"Datenformate"
  1. Aalberg, T.; Haugen, F.B.; Husby, O.: ¬A Tool for Converting from MARC to FRBR (2006) 0.15
    0.15278558 = product of:
      0.20371412 = sum of:
        0.060314562 = weight(_text_:digital in 2425) [ClassicSimilarity], result of:
          0.060314562 = score(doc=2425,freq=2.0), product of:
            0.19770671 = queryWeight, product of:
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.050121464 = queryNorm
            0.30507088 = fieldWeight in 2425, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2425)
        0.026799891 = weight(_text_:library in 2425) [ClassicSimilarity], result of:
          0.026799891 = score(doc=2425,freq=2.0), product of:
            0.1317883 = queryWeight, product of:
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.050121464 = queryNorm
            0.20335563 = fieldWeight in 2425, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2425)
        0.116599664 = sum of:
          0.069064304 = weight(_text_:project in 2425) [ClassicSimilarity], result of:
            0.069064304 = score(doc=2425,freq=2.0), product of:
              0.21156175 = queryWeight, product of:
                4.220981 = idf(docFreq=1764, maxDocs=44218)
                0.050121464 = queryNorm
              0.32644984 = fieldWeight in 2425, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.220981 = idf(docFreq=1764, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2425)
          0.047535364 = weight(_text_:22 in 2425) [ClassicSimilarity], result of:
            0.047535364 = score(doc=2425,freq=2.0), product of:
              0.17551683 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.050121464 = queryNorm
              0.2708308 = fieldWeight in 2425, 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=2425)
      0.75 = coord(3/4)
    
    Abstract
    The FRBR model is by many considered to be an important contribution to the next generation of bibliographic catalogues, but a major challenge for the library community is how to use this model on already existing MARC-based bibliographic catalogues. This problem requires a solution for the interpretation and conversion of MARC records, and a tool for this kind of conversion is developed as a part of the Norwegian BIBSYS FRBR project. The tool is based on a systematic approach to the interpretation and conversion process and is designed to be adaptable to the rules applied in different catalogues.
    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
  2. Mönch, C.; Aalberg, T.: Automatic conversion from MARC to FRBR (2003) 0.06
    0.059401147 = product of:
      0.07920153 = sum of:
        0.043081827 = weight(_text_:digital in 2422) [ClassicSimilarity], result of:
          0.043081827 = score(doc=2422,freq=2.0), product of:
            0.19770671 = queryWeight, product of:
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.050121464 = queryNorm
            0.21790776 = fieldWeight in 2422, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2422)
        0.01914278 = weight(_text_:library in 2422) [ClassicSimilarity], result of:
          0.01914278 = score(doc=2422,freq=2.0), product of:
            0.1317883 = queryWeight, product of:
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.050121464 = queryNorm
            0.14525402 = fieldWeight in 2422, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2422)
        0.016976917 = product of:
          0.033953834 = sum of:
            0.033953834 = weight(_text_:22 in 2422) [ClassicSimilarity], result of:
              0.033953834 = score(doc=2422,freq=2.0), product of:
                0.17551683 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050121464 = queryNorm
                0.19345059 = fieldWeight in 2422, 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=2422)
          0.5 = coord(1/2)
      0.75 = coord(3/4)
    
    Abstract
    Catalogs have for centuries been the main tool that enabled users to search for items in a library by author, title, or subject. A catalog can be interpreted as a set of bibliographic records, where each record acts as a surrogate for a publication. Every record describes a specific publication and contains the data that is used to create the indexes of search systems and the information that is presented to the user. Bibliographic records are often captured and exchanged by the use of the MARC format. Although there are numerous rdquodialectsrdquo of the MARC format in use, they are usually crafted on the same basis and are interoperable with each other -to a certain extent. The data model of a MARC-based catalog, however, is rdquo[...] extremely non-normalized with excessive replication of datardquo [1]. For instance, a literary work that exists in numerous editions and translations is likely to yield a large result set because each edition or translation is represented by an individual record, that is unrelated to other records that describe the same work.
    Source
    Research and advanced technology for digital libraries : 7th European Conference, proceedings / ECDL 2003, Trondheim, Norway, August 17-22, 2003
  3. Aalberg, T.; Zumer, M.: ¬The value of MARC data, or, challenges of frbrisation (2013) 0.00
    0.004785695 = product of:
      0.01914278 = sum of:
        0.01914278 = weight(_text_:library in 1769) [ClassicSimilarity], result of:
          0.01914278 = score(doc=1769,freq=2.0), product of:
            0.1317883 = queryWeight, product of:
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.050121464 = queryNorm
            0.14525402 = fieldWeight in 1769, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1769)
      0.25 = coord(1/4)
    
    Abstract
    Purpose - Bibliographic records should now be used in innovative end-user applications that enable users to learn about, discover and exploit available content, and this information should be interpreted and reused also beyond the library domain. New conceptual models such as FRBR offer the foundation for such developments. The main motivation for this research is to contribute to the adoption of the FRBR model in future bibliographic standards and systems, by analysing limitations in existing bibliographic information and looking for short- and long-term solutions that can improve the data quality in terms of expressing the FRBR model. Design/methodology/approach - MARC records in three collections (BIBSYS catalogue, Slovenian National Bibliography and BTJ catalogue) were first analysed by looking at statistics of field and subfield usage to determine common patterns that express FRBR. Based on this, different rules for interpreting the information were developed. Finally typical problems/errors found in MARC records were analysed. Findings - Different types of FRBR entity-relationship structures that typically can be found in bibliographic records are identified. Problems related to interpreting these from bibliographic records are analyzed. Frbrisation of consistent and complete MARC records is relatively successful, particularly if all entities are systematically described and relationships among them are clearly indicated. Research limitations/implications - Advanced matching was not used for clustering of identical entities. Practical implications - Cataloguing guidelines are proposed to enable better frbrisation of MARC records in the interim period, before new formats are developed and implemented. Originality/value - This is the first in depth analysis of manifestations embodying several expressions and of works and agents as subjects.

Languages