Search (6 results, page 1 of 1)

0.061294235 = product of:
  0.12258847 = sum of:
    0.12258847 = sum of:
      0.056981225 = weight(_text_:web in 5083) [ClassicSimilarity], result of:
        0.056981225 = score(doc=5083,freq=2.0), product of:
          0.19753851 = queryWeight, product of:
            3.2635105 = idf(docFreq=4597, maxDocs=44218)
            0.060529456 = queryNorm
          0.2884563 = fieldWeight in 5083, 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=5083)
      0.06560725 = weight(_text_:22 in 5083) [ClassicSimilarity], result of:
        0.06560725 = score(doc=5083,freq=2.0), product of:
          0.21196385 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.060529456 = queryNorm
          0.30952093 = fieldWeight in 5083, 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=5083)
  0.5 = coord(1/2)

Abstract

The concept of faceted classification has its long history and importance in the human civilization. Recently, more and more consumer Web sites adopt the idea of facet analysis to organize and display their products or services. The aim of this article is to review the origin and develpment of faceted classification, as well as its concepts, essence, advantage and limitation. Further, the applications of faceted classification in various domians have been explored.

Date

27. 5.2007 22:19:35

0.012591192 = product of:
  0.025182383 = sum of:
    0.025182383 = product of:
      0.050364766 = sum of:
        0.050364766 = weight(_text_:web in 2874) [ClassicSimilarity], result of:
          0.050364766 = score(doc=2874,freq=4.0), product of:
            0.19753851 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.060529456 = queryNorm
            0.25496176 = fieldWeight in 2874, 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=2874)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Purpose - The aim of this article is to estimate the impact of faceted classification and the faceted analytical method on the development of various information retrieval tools over the latter part of the twentieth and early twenty-first centuries. Design/methodology/approach - The article presents an examination of various subject access tools intended for retrieval of both print and digital materials to determine whether they exhibit features of faceted systems. Some attention is paid to use of the faceted approach as a means of structuring information on commercial web sites. The secondary and research literature is also surveyed for commentary on and evaluation of facet analysis as a basis for the building of vocabulary and conceptual tools. Findings - The study finds that faceted systems are now very common, with a major increase in their use over the last 15 years. Most LIS subject indexing tools (classifications, subject heading lists and thesauri) now demonstrate features of facet analysis to a greater or lesser degree. A faceted approach is frequently taken to the presentation of product information on commercial web sites, and there is an independent strand of theory and documentation related to this application. There is some significant research on semi-automatic indexing and retrieval (query expansion and query formulation) using facet analytical techniques. Originality/value - This article provides an overview of an important conceptual approach to information retrieval, and compares different understandings and applications of this methodology.

0.011517316 = product of:
  0.023034632 = sum of:
    0.023034632 = product of:
      0.0691039 = sum of:
        0.0691039 = weight(_text_:themes in 3262) [ClassicSimilarity], result of:
          0.0691039 = score(doc=3262,freq=2.0), product of:
            0.3891456 = queryWeight, product of:
              6.429029 = idf(docFreq=193, maxDocs=44218)
              0.060529456 = queryNorm
            0.17757851 = fieldWeight in 3262, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.429029 = idf(docFreq=193, maxDocs=44218)
              0.01953125 = fieldNorm(doc=3262)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)

Footnote

Several of the papers are clearly written as primers and neatly address the second agenda item: attracting others to the study and use of facet analysis. The most valuable papers are written in clear, approachable language. Vickery's paper (p. 145-160) is a clarion call for faceted classification and facet analysis. The heart of the paper is a primer for central concepts and techniques. Vickery explains the value of using faceted classification in document retrieval. Also provided are potential solutions to thorny interface and display issues with facets. Vickery looks to complementary themes in knowledge organization, such as thesauri and ontologies as potential areas for extending the facet concept. Broughton (p. 193-210) describes a rigorous approach to the application of facet analysis in the creation of a compatible thesaurus from the schedules of the 2nd edition of the Bliss Classification (BC2). This discussion of exemplary faceted thesauri, recent standards work, and difficulties encountered in the project will provide valuable guidance for future research in this area. Slavic (p. 257-271) provides a challenge to make faceted classification come 'alive' through promoting the use of machine-readable formats for use and exchange in applications such as Topic Maps and SKOS (Simple Knowledge Organization Systems), and as supported by the standard BS8723 (2005) Structured Vocabulary for Information Retrieval. She also urges designers of faceted classifications to get involved in standards work. Cheti and Paradisi (p. 223-241) outline a basic approach to converting an existing subject indexing tool, the Nuovo Soggetario, into a faceted thesaurus through the use of facet analysis. This discussion, well grounded in the canonical literature, may well serve as a primer for future efforts. Also useful for those who wish to construct faceted thesauri is the article by Tudhope and Binding (p. 211-222). This contains an outline of basic elements to be found in exemplar faceted thesauri, and a discussion of project FACET (Faceted Access to Cultural heritage Terminology) with algorithmically-based semantic query expansion in a dataset composed of items from the National Museum of Science and Industry indexed with AAT (Art and Architecture Thesaurus). This paper looks to the future hybridization of ontologies and facets through standards developments such as SKOS because of the "lightweight semantics" inherent in facets.

0.01068398 = product of:
  0.02136796 = sum of:
    0.02136796 = product of:
      0.04273592 = sum of:
        0.04273592 = weight(_text_:web in 715) [ClassicSimilarity], result of:
          0.04273592 = score(doc=715,freq=2.0), product of:
            0.19753851 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.060529456 = queryNorm
            0.21634221 = fieldWeight in 715, 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=715)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Claudio Gnoli of the University of Pavia in Italy and Chair of ISKO Italy, explored the relative merits of classic 'faceted classification' (FC) and 'freely faceted classification' (FFC). In classic FC, the facets (and their relationships) which might be combined to express a compound subject, are restricted to those prescribed as inherent in the subject area. FC is therefore largely bounded by and restricted to a specific subject area. At the other extreme, free classification (as in the Web or folksonomies) allows the combination of values from multiple, disparate domains where the relationships among the elements are often indeterminate, and the semantics obscure. Claudio described how punched cards were an early example of free classification, and cited the coordination of dogs : postmen : bites as one where the absence of defined relationships made the semantics ambiguous

0.01068398 = product of:
  0.02136796 = sum of:
    0.02136796 = product of:
      0.04273592 = sum of:
        0.04273592 = weight(_text_:web in 1806) [ClassicSimilarity], result of:
          0.04273592 = score(doc=1806,freq=2.0), product of:
            0.19753851 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.060529456 = queryNorm
            0.21634221 = fieldWeight in 1806, 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=1806)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Facets and general categories used in bibliographic classification have been based on a disciplinary organization of knowledge. However, facets and categories of phenomena independent from disciplines can be identified similarly. Phenomena can be classified according to a series of integrative levels (layers), which in turn can be grouped into the major strata of form, matter, life, mind, society and culture, agreeing with Nicolai Hartmann's ontology. Unlike a layer, a stratum is not constituted of elements of the lower ones; rather, it represents the formal pattern of the lower ones, like the horse hoof represents the shape of the steppe. Bibliographic categories can now be seen in the light of level theory: some categories are truly general, while others only appear at a given level, being the realization of a general category in the specific context of the level: these are the facets of that level. In the notation of the Integrative Level Classification project, categories and facets are represented by digits, and displayed in a Web interface with the help of colours.

0.008903317 = product of:
  0.017806634 = sum of:
    0.017806634 = product of:
      0.03561327 = sum of:
        0.03561327 = weight(_text_:web in 2291) [ClassicSimilarity], result of:
          0.03561327 = score(doc=2291,freq=2.0), product of:
            0.19753851 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.060529456 = queryNorm
            0.18028519 = fieldWeight in 2291, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2291)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Disciplines are felt by many to be a constraint in classification, though they are a structuring principle of most bibliographic classification schemes. A non-disciplinary approach has been explored by the Classification Research Group, and research in this direction has been resumed recently by the Integrative Level Classification project. This paper focuses on the role and the definition of facets in non-disciplinary schemes. A generalized definition of facets is suggested with reference to predicate logic, allowing for having facets of phenomena as well as facets of disciplines. The general categories under which facets are often subsumed can be related ontologically to the evolutionary sequence of integrative levels. As a facet can be semantically connected with phenomena from any other part of a general scheme, its values can belong to three types, here called extra-defined foci (either special or general), and context-defined foci. Non-disciplinary freely faceted classification is being tested by applying it to little bibliographic samples stored in a MySQL database, and developing Web search interfaces to demonstrate possible uses of the described techniques.