Search (11 results, page 1 of 1)

  • × author_ss:"Hjoerland, B."
  1. Hjoerland, B.: Classical databases and knowledge organisation : a case for Boolean retrieval and human decision-making during search (2014) 0.10 
    0.102130555 = product of:
  0.15319583 = sum of:
    0.04744636 = weight(_text_:search in 1398) [ClassicSimilarity], result of:
      0.04744636 = score(doc=1398,freq=4.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.27153727 = fieldWeight in 1398, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.0390625 = fieldNorm(doc=1398)
    0.10574947 = sum of:
      0.07169304 = weight(_text_:engines in 1398) [ClassicSimilarity], result of:
        0.07169304 = score(doc=1398,freq=2.0), product of:
          0.25542772 = queryWeight, product of:
            5.080822 = idf(docFreq=746, maxDocs=44218)
            0.05027291 = queryNorm
          0.2806784 = fieldWeight in 1398, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.080822 = idf(docFreq=746, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1398)
      0.03405643 = weight(_text_:22 in 1398) [ClassicSimilarity], result of:
        0.03405643 = score(doc=1398,freq=2.0), product of:
          0.17604718 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05027291 = queryNorm
          0.19345059 = fieldWeight in 1398, 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=1398)
  0.6666667 = coord(2/3)
    Abstract
    This paper considers classical bibliographic databases based on the Boolean retrieval model (for example MEDLINE and PsycInfo). This model is challenged by modern search engines and information retrieval (IR) researchers, who often consider Boolean retrieval as a less efficient approach. This speech examines this claim and argues for the continued value of Boolean systems, which implies two further issues: (1) the important role of human expertise in searching (expert searchers and "information literacy") and (2) the role of knowledge organization (KO) in the design and use of classical databases, including controlled vocabularies and human indexing. An underlying issue is the kind of retrieval system for which one should aim. It is suggested that Julian Warner's (2010) differentiation between the computer science traditions, aiming at automatically transforming queries into (ranked) sets of relevant documents, and an older library-orientated tradition aiming at increasing the "selection power" of users seems important. The Boolean retrieval model is important in order to provide users with the power to make informed searches and have full control over what is found and what is not found. These issues may also have important implications for the maintenance of information science and KO as research fields as well as for the information profession as a profession in its own right.
    Source
    Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
  2. Hjoerland, B.: Information retrieval and knowledge organization : a perspective from the philosophy of science 0.06 
    0.05551693 = product of:
  0.08327539 = sum of:
    0.04025957 = weight(_text_:search in 206) [ClassicSimilarity], result of:
      0.04025957 = score(doc=206,freq=2.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.230407 = fieldWeight in 206, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.046875 = fieldNorm(doc=206)
    0.043015826 = product of:
      0.08603165 = sum of:
        0.08603165 = weight(_text_:engines in 206) [ClassicSimilarity], result of:
          0.08603165 = score(doc=206,freq=2.0), product of:
            0.25542772 = queryWeight, product of:
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.05027291 = queryNorm
            0.33681408 = fieldWeight in 206, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.046875 = fieldNorm(doc=206)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    Information retrieval (IR) is about making systems for finding documents or information. Knowledge organization (KO) is the field concerned with indexing, classification, and representing documents for IR, browsing, and related processes, whether performed by humans or computers. The field of IR is today dominated by search engines like Google. An important difference between KO and IR as research fields is that KO attempts to reflect knowledge as depicted by contemporary scholarship, in contrast to IR, which is based on, for example, "match" techniques, popularity measures or personalization principles. The classification of documents in KO mostly aims at reflecting the classification of knowledge in the sciences. Books about birds, for example, mostly reflect (or aim at reflecting) how birds are classified in ornithology. KO therefore requires access to the adequate subject knowledge; however, this is often characterized by disagreements. At the deepest layer, such disagreements are based on philosophical issues best characterized as "paradigms". No IR technology and no system of knowledge organization can ever be neutral in relation to paradigmatic conflicts, and therefore such philosophical problems represent the basis for the study of IR and KO.
  3. Hjoerland, B.: Is classification necessary after Google? (2012) 0.05 
    0.04626411 = product of:
  0.06939616 = sum of:
    0.03354964 = weight(_text_:search in 388) [ClassicSimilarity], result of:
      0.03354964 = score(doc=388,freq=2.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.19200584 = fieldWeight in 388, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.0390625 = fieldNorm(doc=388)
    0.03584652 = product of:
      0.07169304 = sum of:
        0.07169304 = weight(_text_:engines in 388) [ClassicSimilarity], result of:
          0.07169304 = score(doc=388,freq=2.0), product of:
            0.25542772 = queryWeight, product of:
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.05027291 = queryNorm
            0.2806784 = fieldWeight in 388, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.0390625 = fieldNorm(doc=388)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    Purpose - The purpose of this paper is to examine challenges facing bibliographic classification at both the practical and theoretical levels. At the practical level, libraries are increasingly dispensing with classifying books. At the theoretical level, many researchers, managers, and users believe that the activity of "classification" is not worth the effort, as search engines can be improved without the heavy cost of providing metadata. Design/methodology/approach - The basic issue in classification is seen as providing criteria for deciding whether A should be classified as X. Such decisions are considered to be dependent on the purpose and values inherent in the specific classification process. These decisions are not independent of theories and values in the document being classified, but are dependent on an interpretation of the discourses within those documents. Findings - At the practical level, there is a need to provide high-quality control mechanisms. At the theoretical level, there is a need to establish the basis of each decision, and to change the philosophy of classification from being based on "standardisation" to being based on classifications tailored to different domains and purposes. Evidence-based practice provides an example of the importance of classifying documents according to research methods. Originality/value - Solving both the practical (organisational) and the theoretical problems facing classification is necessary if the field is to survive both as a practice and as an academic subject within library and information science. This article presents strategies designed to tackle these challenges.
  4. Hjoerland, B.: Classical databases and knowledge organization : a case for boolean retrieval and human decision-making during searches (2015) 0.05 
    0.04626411 = product of:
  0.06939616 = sum of:
    0.03354964 = weight(_text_:search in 2124) [ClassicSimilarity], result of:
      0.03354964 = score(doc=2124,freq=2.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.19200584 = fieldWeight in 2124, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2124)
    0.03584652 = product of:
      0.07169304 = sum of:
        0.07169304 = weight(_text_:engines in 2124) [ClassicSimilarity], result of:
          0.07169304 = score(doc=2124,freq=2.0), product of:
            0.25542772 = queryWeight, product of:
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.05027291 = queryNorm
            0.2806784 = fieldWeight in 2124, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.080822 = idf(docFreq=746, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2124)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    This paper considers classical bibliographic databases based on the Boolean retrieval model (such as MEDLINE and PsycInfo). This model is challenged by modern search engines and information retrieval (IR) researchers, who often consider Boolean retrieval a less efficient approach. The paper examines this claim and argues for the continued value of Boolean systems, and suggests two further considerations: (a) the important role of human expertise in searching (expert searchers and "information literate" users) and (b) the role of library and information science and knowledge organization (KO) in the design and use of classical databases. An underlying issue is the kind of retrieval system for which one should aim. Warner's (2010) differentiation between the computer science traditions and an older library-oriented tradition seems important; the former aim to transform queries automatically into (ranked) sets of relevant documents, whereas the latter aims to increase the "selection power" of users. The Boolean retrieval model is valuable in providing users with the power to make informed searches and have full control over what is found and what is not. These issues may have significant implications for the maintenance of information science and KO as research fields as well as for the information profession as a profession in its own right.
  5. Hjoerland, B.: User-based and cognitive approaches to knowledge organization : a theoretical analysis of the research literature (2013) 0.03 
    0.03371857 = product of:
  0.050577857 = sum of:
    0.03354964 = weight(_text_:search in 629) [ClassicSimilarity], result of:
      0.03354964 = score(doc=629,freq=2.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.19200584 = fieldWeight in 629, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.0390625 = fieldNorm(doc=629)
    0.017028214 = product of:
      0.03405643 = sum of:
        0.03405643 = weight(_text_:22 in 629) [ClassicSimilarity], result of:
          0.03405643 = score(doc=629,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.19345059 = fieldWeight in 629, 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=629)
      0.5 = coord(1/2)
  0.6666667 = coord(2/3)
    Abstract
    In the 1970s and 1980s, forms of user-based and cognitive approaches to knowledge organization came to the forefront as part of the overall development in library and information science and in the broader society. The specific nature of user-based approaches is their basis in the empirical studies of users or the principle that users need to be involved in the construction of knowledge organization systems. It might seem obvious that user-friendly systems should be designed on user studies or user involvement, but extremely successful systems such as Apple's iPhone, Dialog's search system and Google's PageRank are not based on the empirical studies of users. In knowledge organization, the Book House System is one example of a system based on user studies. In cognitive science the important WordNet database is claimed to be based on psychological research. This article considers such examples. The role of the user is often confused with the role of subjectivity. Knowledge organization systems cannot be objective and must therefore, by implication, be based on some kind of subjectivity. This subjectivity should, however, be derived from collective views in discourse communities rather than be derived from studies of individuals or from the study ofabstract minds.
    Date
    22. 2.2013 11:49:13
  6. Hjoerland, B.: Evidence-based practice : an analysis based on the philosophy of science (2011) 0.01 
    0.011183213 = product of:
  0.03354964 = sum of:
    0.03354964 = weight(_text_:search in 4476) [ClassicSimilarity], result of:
      0.03354964 = score(doc=4476,freq=2.0), product of:
        0.1747324 = queryWeight, product of:
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.05027291 = queryNorm
        0.19200584 = fieldWeight in 4476, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.475677 = idf(docFreq=3718, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4476)
  0.33333334 = coord(1/3)
    Abstract
    Evidence-based practice (EBP) is an influential interdisciplinary movement that originated in medicine as evidence-based medicine (EBM) about 1992. EBP is of considerable interest to library and information science (LIS) because it focuses on a thorough documentation of the basis for the decision making that is established in research as well as an optimization of every link in documentation and search processes. EBP is based on the philosophical doctrine of empiricism and, therefore, it is subject to the criticism that has been raised against empiricism. The main criticism of EBP is that practitioners lose their autonomy, that the understanding of theory and of underlying mechanisms is weakened, and that the concept of evidence is too narrow in the empiricist tradition. In this article, it is suggested that we should speak of "research-based practice" rather than EBP, because this term is open to more fruitful epistemologies and provides a broader understanding of evidence. The focus on scientific argumentation in EBP is an important contribution from EBP to LIS, which is long overdue, but parts of the underlying epistemological assumptions should be replaced: EBP is too narrow, too formalist, and too mechanical an approach on which to base scientific and scholarly documentation.
  7. Hjoerland, B.; Christensen, F.S.: Work tasks and socio-cognitive relevance : a specific example (2002) 0.01 
    0.007946501 = product of:
  0.0238395 = sum of:
    0.0238395 = product of:
      0.047679 = sum of:
        0.047679 = weight(_text_:22 in 5237) [ClassicSimilarity], result of:
          0.047679 = score(doc=5237,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.2708308 = fieldWeight in 5237, 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=5237)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    21. 7.2006 14:11:22
  8. Hjoerland, B.: Theories of knowledge organization - theories of knowledge (2017) 0.01 
    0.007946501 = product of:
  0.0238395 = sum of:
    0.0238395 = product of:
      0.047679 = sum of:
        0.047679 = weight(_text_:22 in 3494) [ClassicSimilarity], result of:
          0.047679 = score(doc=3494,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.2708308 = fieldWeight in 3494, 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=3494)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Pages
    S.22-36
  9. Hjoerland, B.: ¬The importance of theories of knowledge : indexing and information retrieval as an example (2011) 0.01 
    0.0068112854 = product of:
  0.020433856 = sum of:
    0.020433856 = product of:
      0.040867712 = sum of:
        0.040867712 = weight(_text_:22 in 4359) [ClassicSimilarity], result of:
          0.040867712 = score(doc=4359,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.23214069 = fieldWeight in 4359, 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=4359)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    17. 3.2011 19:22:55
  10. Hjoerland, B.: Table of contents (ToC) (2022) 0.01 
    0.0056760716 = product of:
  0.017028214 = sum of:
    0.017028214 = product of:
      0.03405643 = sum of:
        0.03405643 = weight(_text_:22 in 1096) [ClassicSimilarity], result of:
          0.03405643 = score(doc=1096,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.19345059 = fieldWeight in 1096, 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=1096)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    18.11.2023 13:47:22
  11. Hjoerland, B.: ¬The controversy over the concept of information : a rejoinder to Professor Bates (2009) 0.00 
    0.0028380358 = product of:
  0.008514107 = sum of:
    0.008514107 = product of:
      0.017028214 = sum of:
        0.017028214 = weight(_text_:22 in 2748) [ClassicSimilarity], result of:
          0.017028214 = score(doc=2748,freq=2.0), product of:
            0.17604718 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05027291 = queryNorm
            0.09672529 = fieldWeight in 2748, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.01953125 = fieldNorm(doc=2748)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 3.2009 18:13:27

Years

Types

Themes