Search (14 results, page 1 of 1)

0.02280451 = product of:
  0.04560902 = sum of:
    0.04560902 = product of:
      0.09121804 = sum of:
        0.09121804 = weight(_text_:bibliographic in 310) [ClassicSimilarity], result of:
          0.09121804 = score(doc=310,freq=8.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.5161496 = fieldWeight in 310, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.046875 = fieldNorm(doc=310)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Authority files have played an important role in improving the quality of indexing and subject cataloging. Although authorities can significantly improve search by increasing the number of access points, they are rarely an integral part of the information retrieval process, particularly end-users searches. A retrieval prototype, searchFAST, was developed to test the feasibility of using an authority file as an index to bibliographic records. searchFAST uses FAST (Faceted Application of Subject Terminology) as an index to OCLC's WorldCat.org bibliographic database. The searchFAST methodology complements, rather than replaces, existing WorldCat.org access. The bibliographic file is searched indirectly; first the authority file is searched to identify appropriate subject headings, then the headings are used to retrieve the matching bibliographic records. The prototype demonstrates the effectiveness and practicality of using an authority file as an index. Searching the authority file leverages authority control work by increasing the number of access points while supporting a simple interface designed for end-users.

0.01900376 = product of:
  0.03800752 = sum of:
    0.03800752 = product of:
      0.07601504 = sum of:
        0.07601504 = weight(_text_:bibliographic in 1970) [ClassicSimilarity], result of:
          0.07601504 = score(doc=1970,freq=8.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.43012467 = fieldWeight in 1970, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1970)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Authority files have played an important role in improving the quality of indexing and subject cataloging. Although authorities can significantly improve searching by increasing the number of access points, they are rarely an integral part of the information retrieval process, particularly end-users' searches. A retrieval prototype, searchFAST, was developed to test the feasibility of using an authority file as an index to bibliographic records. searchFAST uses Faceted Application of Subject Terminology (FAST) as an index to OCLC's WorldCat.org bibliographic database. The searchFAST prototype complements, rather than replaces, existing WorldCat.org access. The bibliographic file is searched indirectly; first the authority file is searched to identify appropriate subject headings, then the headings are used to retrieve the matching bibliographic records. The prototype demonstrates the effectiveness and practicality of using an authority file as an index. Searching the authority file leverages authority control work by increasing the number of access points while supporting a simple interface designed for end-users.

0.016997479 = product of:
  0.033994958 = sum of:
    0.033994958 = product of:
      0.067989916 = sum of:
        0.067989916 = weight(_text_:bibliographic in 2303) [ClassicSimilarity], result of:
          0.067989916 = score(doc=2303,freq=10.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.3847152 = fieldWeight in 2303, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.03125 = fieldNorm(doc=2303)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Authority control is a standard practice in the library community that provides consistent, unique, and unambiguous reference to entities such as persons, places, concepts, etc. The ideal way of referring to authority records through unique identifiers is in line with the current linked data principle. When presenting a bibliographic record, the linked authority records are expanded with the authoritative information. This way, any update in the authority records will not affect the indexing of the bibliographic records. The structural information in the authority files can also be leveraged to expand the user's query to retrieve bibliographic records associated with all the variations, narrower terms or related terms. However, in many digital libraries, especially largescale aggregations such as WorldCat and Europeana, name strings are often used instead of authority record identifiers. This is also partly due to the lack of global authority records that are valid across countries and cultural heritage domains. But even when there are global authority systems, they are not applied at scale. For example, in WorldCat, only 15% of the records have DDC and 3% have UDC codes; less than 40% of the records have one or more topical terms catalogued in the 650 MARC field, many of which are too general (such as "sports" or "literature") to be useful for retrieving bibliographic records. Therefore, when a user query is based on a Dewey code, the results usually have high precision but the recall is much lower than it should be; and, a search on a general topical term returns millions of hits without being even complete. All these practices make it difficult to leverage the key benefits of authority files. This is also true for authority files that have been transformed into linked data and enriched with mapping information. There are practical reasons for using name strings instead of identifiers. One is the indexing and query response. The future infrastructure design should take the performance into account while embracing the benefit of linking instead of copying, without introducing extra complexity to users. Notwithstanding all the restrictions, we argue that largescale aggregations also bring new opportunities for better exploiting the benefits of authority records. It is possible to use machine learning techniques to automatically link bibliographic records to authority records based on the manual input of cataloguers. Text mining and visualization techniques can offer a contextual view of authority records, which in return can be used to retrieve missing or mis-catalogued records. In this talk, we will describe such opportunities in more detail.

0.0152030075 = product of:
  0.030406015 = sum of:
    0.030406015 = product of:
      0.06081203 = sum of:
        0.06081203 = weight(_text_:bibliographic in 1808) [ClassicSimilarity], result of:
          0.06081203 = score(doc=1808,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.34409973 = fieldWeight in 1808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0625 = fieldNorm(doc=1808)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Series

IFLA series on bibliographic control; vol. 42

0.0152030075 = product of:
  0.030406015 = sum of:
    0.030406015 = product of:
      0.06081203 = sum of:
        0.06081203 = weight(_text_:bibliographic in 5480) [ClassicSimilarity], result of:
          0.06081203 = score(doc=5480,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.34409973 = fieldWeight in 5480, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0625 = fieldNorm(doc=5480)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Libraries are bridges between information and the library user in the context of information retrieval. Library users want to access information resources according to their topic. Therefore, it is important to create subject entries in bibliographic records. If subject added entries and their redirects are done correctly, it will make it easier for users to access the information they are looking for. In this article the collaborative studies and projects made in Turkey are being discussed.

0.0134376865 = product of:
  0.026875373 = sum of:
    0.026875373 = product of:
      0.053750746 = sum of:
        0.053750746 = weight(_text_:bibliographic in 2294) [ClassicSimilarity], result of:
          0.053750746 = score(doc=2294,freq=4.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.30414405 = fieldWeight in 2294, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2294)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

From the very beginnings of library automation, subject authority control has been considered an important bibliographic tool in the Czech National Library (CNL). Effective subject access cannot exist without standardised access points. Subject authorities are considered an indispensable reference tool in supporting the selection of subject access points and normalizing content indexing. Most importantly, they are heavily relied upon when it comes to customisation of links between bibliographic records and subject access points in order to create a user-friendly subject browsing and searching environment. Because of the fact that the Universal Decimal Classification (UDC) is widely used in Czech Libraries it has become a readily available language independent subject framework which can be complemented by a more user-friendly subject heading system. In this context, the subject authority control offers a means of enhancing subject headings' access points with terminology and the semantic links available in UDC. Furthermore classification is used to enrich relationships between authority records themselves. The author will discuss in more detail the different aspects and advantages of subject authorities in which a classification and a subject heading system complement one another and the way this is implemented in the CNL.

0.011402255 = product of:
  0.02280451 = sum of:
    0.02280451 = product of:
      0.04560902 = sum of:
        0.04560902 = weight(_text_:bibliographic in 1802) [ClassicSimilarity], result of:
          0.04560902 = score(doc=1802,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.2580748 = fieldWeight in 1802, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.046875 = fieldNorm(doc=1802)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Series

IFLA series on bibliographic control; vol. 42

0.00950188 = product of:
  0.01900376 = sum of:
    0.01900376 = product of:
      0.03800752 = sum of:
        0.03800752 = weight(_text_:bibliographic in 82) [ClassicSimilarity], result of:
          0.03800752 = score(doc=82,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.21506234 = fieldWeight in 82, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=82)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

This paper examines the current state of authority control development in Spanish university repositories. As a decade has now gone by since the initiation of the first projects for institutional repositories in Spain, it would seem a suitable time to draw attention to authority control, an element of the first rank in evaluating the consistency and integrity of systems for recovering bibliographic information. The work is focused on examining the implementation of authorities in twenty-six Spanish university repositories, taking into account the information provided by the standardization experts working in them. The study considers the responses of the coordinators for these digital collections using a set of analytic criteria set out in the study. The handling of authorities in the group of university repositories studied may be described as uneven. Greater interest may be observed in controlling author entries, with laxer solutions for authority control of subjects. It suggests the need to establish effective policies for the management of authorities by means of cooperative efforts permitting the building up of corpora of entries for authorities that would aid the processes of cataloguing, metadata creation, and information retrieval in systems based on syntactic and semantic interoperability in which manual intervention should be minimal.

0.00950188 = product of:
  0.01900376 = sum of:
    0.01900376 = product of:
      0.03800752 = sum of:
        0.03800752 = weight(_text_:bibliographic in 1760) [ClassicSimilarity], result of:
          0.03800752 = score(doc=1760,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.21506234 = fieldWeight in 1760, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1760)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Purpose - The purpose of this paper is to present functional requirements for bibliographic records (FRBR)-based model and functional requirements for authority data (FRAD)-based model; both of which incorporate an event concept that transforms FRBR and FRAD with minimal modification. Design/methodology/approach - Relationships between the entities defined in FRBR/FRAD are transformed into event entities and relationships with other kinds of entities. The cardinality of those relationships is also examined. In addition, a comparison of the proposed FRBR-based model with the object-oriented FRBR (FRBROO) is conducted. Findings - In the proposed event-aware FRBR model, an event and its output resource are dependent on each other and necessary information about an event can be expressed with information about its output resource, and vice versa. Therefore, the usefulness and expressiveness of the proposed model is limited. In the FRBROO model, dependency between an event and its output resource is not observed, except in a few cases, since a different resource and event modeling was adopted there. The event-aware FRAD model proposed is useful - but also the scope of its usefulness limited since dependency between an event and its input/output resource is not observed on some event entities. Originality/value - The proposed models are meaningful in terms of understanding the basic structure and features of a model that incorporates an event concept. The usefulness and limitation of event modeling have been clarified through such model building. The proposed models provide a stable basis for examining FRBR/FRAD further.

0.00950188 = product of:
  0.01900376 = sum of:
    0.01900376 = product of:
      0.03800752 = sum of:
        0.03800752 = weight(_text_:bibliographic in 2288) [ClassicSimilarity], result of:
          0.03800752 = score(doc=2288,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.21506234 = fieldWeight in 2288, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2288)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Bibliographic data is used to describe resources held in the collections of libraries, archives and museums. That data is mostly available on the Web today and mostly as linked data. Also on the Web are the controlled vocabulary systems of name authority files, like the Virtual International Authority File (VIAF), classification systems, and subject terms. These systems offer their own linked data to potentially help users find the information they want - whether at their local library or anywhere in the world that is willing to make their resources available. We have found it beneficial to merge authority data for names on a global level, as the entities are relatively clear. That is not true for subject concepts and terminology that have categorisation systems developed according to varying principles and schemes and are in multiple languages. Rather than requiring everyone in the world to use the same categorisation/classification system in the same language, we know that the Web offers us the opportunity to add descriptors assigned around the world using multiple systems from multiple perspectives to identify our resources. Those descriptors add value to refine searches, help users worldwide and share globally what each library does locally.

0.00950188 = product of:
  0.01900376 = sum of:
    0.01900376 = product of:
      0.03800752 = sum of:
        0.03800752 = weight(_text_:bibliographic in 2295) [ClassicSimilarity], result of:
          0.03800752 = score(doc=2295,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.21506234 = fieldWeight in 2295, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2295)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The paper provides an illustration of the benefits of subject authority control improving multilingual subject access in NEBIS - Netzwerk von Bibliotheken und Informationsstellen in der Schweiz. This example of good practice focuses on some important aspects of classification and indexing. NEBIS subject authorities comprise a classification scheme and multilingual subject descriptor system. A bibliographic system supported by subject authority control empowers libraries as it enables them to expand and adjust vocabulary and link subjects to suit their specific audience. Most importantly it allows the management of different subject vocabularies in numerous languages. In addition, such an enriched subject index creates re-usable and shareable source of subject statements that has value in the wider context of information exchange. The illustrations and supporting arguments are based on indexing practice, subject authority control and use of classification in ETH-Bibliothek, which is the largest library within the NEBIS network.

0.00922576 = product of:
  0.01845152 = sum of:
    0.01845152 = product of:
      0.03690304 = sum of:
        0.03690304 = weight(_text_:22 in 3502) [ClassicSimilarity], result of:
          0.03690304 = score(doc=3502,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.23214069 = fieldWeight in 3502, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=3502)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Source

Archivar. 70(2017) H.1, S.22-25

0.0076881335 = product of:
  0.015376267 = sum of:
    0.015376267 = product of:
      0.030752534 = sum of:
        0.030752534 = weight(_text_:22 in 3780) [ClassicSimilarity], result of:
          0.030752534 = score(doc=3780,freq=2.0), product of:
            0.15896842 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045395818 = queryNorm
            0.19345059 = fieldWeight in 3780, 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=3780)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

19. 8.2017 9:24:22

0.0076015037 = product of:
  0.0152030075 = sum of:
    0.0152030075 = product of:
      0.030406015 = sum of:
        0.030406015 = weight(_text_:bibliographic in 3876) [ClassicSimilarity], result of:
          0.030406015 = score(doc=3876,freq=2.0), product of:
            0.17672792 = queryWeight, product of:
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.045395818 = queryNorm
            0.17204987 = fieldWeight in 3876, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.893044 = idf(docFreq=2449, maxDocs=44218)
              0.03125 = fieldNorm(doc=3876)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Every standard embodies a particular set of values. Some aspects are privileged while others are masked. Values embedded within knowledge organization standards have special import in that they are further perpetuated by the data they are used to generate. Within libraries, descriptive catalog codes serve as prominent knowledge organization standards, guiding the creation of resource representations. Though the historical and functional aspects of these standards have received significant attention, less focus has been placed on the values associated with such codes. In this study, a critical, historical analysis of ten Anglo-American descriptive catalog codes and surrounding discourse was conducted as an initial step towards uncovering key values associated with this lineage of standards. Two values in particular were found to be highly significant: authority and universalism. Authority is closely tied to notions of power and control, particularly over practice or belief. Increasing control over resources, identities, and viewpoints are all manifestations of the value of authority within descriptive codes. Universalism has guided the widening coverage of descriptive codes in regards to settings and materials, such as the extension of bibliographic standards to non-book resources. Together, authority and universalism represent conventional values focused on facilitating orderly social exchanges. A comparative lack of emphasis on values concerning human welfare and empowerment may be unsurprising, but raises questions concerning the role of human values in knowledge organization standards. Further attention to the values associated with descriptive codes and other knowledge organization standards is important as libraries and other institutions seek to share their resource representation data more widely