Search (6 results, page 1 of 1)

0.020706102 = product of:
  0.062118307 = sum of:
    0.062118307 = weight(_text_:science in 3812) [ClassicSimilarity], result of:
      0.062118307 = score(doc=3812,freq=14.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.4619987 = fieldWeight in 3812, product of:
          3.7416575 = tf(freq=14.0), with freq of:
            14.0 = termFreq=14.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.046875 = fieldNorm(doc=3812)
  0.33333334 = coord(1/3)

Abstract

The purpose of this entry is to provide an overview of information science as a field or discipline, including a historical perspective to illustrate the events and forces that shaped it. Information science is a field of professional practice and scientific inquiry dealing with effective communication of information and information objects, particularly knowledge records, among humans in the context of social, organizational, and individual need for and use of information. Information science emerged in the aftermath of the Second World War, as did a number of other fields, addressing the problem of information explosion and using technology as a solution. Presently, information science deals with the same problems in the Web and digital environments. This entry covers problems addressed by information science, the intellectual structure of the field, and the description of main areas-information retrieval, human information behavior, metric studies, and digital libraries. This entry also includes an account of education related to information science and conclusions about major characteristics.

0.015652342 = product of:
  0.046957023 = sum of:
    0.046957023 = weight(_text_:science in 6949) [ClassicSimilarity], result of:
      0.046957023 = score(doc=6949,freq=2.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.34923816 = fieldWeight in 6949, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.09375 = fieldNorm(doc=6949)
  0.33333334 = coord(1/3)

Source

Journal of the American Society for Information Science and technology. 52(2001) no.12, S.1073-1074

0.011296105 = product of:
  0.033888314 = sum of:
    0.033888314 = weight(_text_:science in 798) [ClassicSimilarity], result of:
      0.033888314 = score(doc=798,freq=6.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.25204095 = fieldWeight in 798, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.0390625 = fieldNorm(doc=798)
  0.33333334 = coord(1/3)

Abstract

Relevance is a, if not even the, key notion in information science in general and information retrieval in particular. This two-part critical review traces and synthesizes the scholarship on relevance over the past 30 years or so and provides an updated framework within which the still widely dissonant ideas and works about relevance might be interpreted and related. It is a continuation and update of a similar review that appeared in 1975 under the same title, considered here as being Part I. The present review is organized in two parts: Part II addresses the questions related to nature and manifestations of relevance, and Part III addresses questions related to relevance behavior and effects. In Part II, the nature of relevance is discussed in terms of meaning ascribed to relevance, theories used or proposed, and models that have been developed. The manifestations of relevance are classified as to several kinds of relevance that form an interdependent system of relevancies. In Part III, relevance behavior and effects are synthesized using experimental and observational works that incorporated data. In both parts, each section concludes with a summary that in effect provides an interpretation and synthesis of contemporary thinking on the topic treated or suggests hypotheses for future research. Analyses of some of the major trends that shape relevance work are offered in conclusions.

Source

Journal of the American Society for Information Science and Technology. 58(2007) no.13, S.2126-2144

0.009036885 = product of:
  0.027110653 = sum of:
    0.027110653 = weight(_text_:science in 612) [ClassicSimilarity], result of:
      0.027110653 = score(doc=612,freq=6.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.20163277 = fieldWeight in 612, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.03125 = fieldNorm(doc=612)
  0.33333334 = coord(1/3)

Abstract

Relevance is a, if not even the, key notion in information science in general and information retrieval in particular. This two-part critical review traces and synthesizes the scholarship on relevance over the past 30 years and provides an updated framework within which the still widely dissonant ideas and works about relevance might be interpreted and related. It is a continuation and update of a similar review that appeared in 1975 under the same title, considered here as being Part I. The present review is organized into two parts: Part II addresses the questions related to nature and manifestations of relevance, and Part III addresses questions related to relevance behavior and effects. In Part II, the nature of relevance is discussed in terms of meaning ascribed to relevance, theories used or proposed, and models that have been developed. The manifestations of relevance are classified as to several kinds of relevance that form an interdependent system of relevances. In Part III, relevance behavior and effects are synthesized using experimental and observational works that incorporate data. In both parts, each section concludes with a summary that in effect provides an interpretation and synthesis of contemporary thinking on the topic treated or suggests hypotheses for future research. Analyses of some of the major trends that shape relevance work are offered in conclusions.

Source

Journal of the American Society for Information Science and Technology. 58(2007) no.13, S.1915-1933

0.0065218094 = product of:
  0.019565428 = sum of:
    0.019565428 = weight(_text_:science in 5585) [ClassicSimilarity], result of:
      0.019565428 = score(doc=5585,freq=2.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.1455159 = fieldWeight in 5585, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5585)
  0.33333334 = coord(1/3)

Content

Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.

0.0052174474 = product of:
  0.015652342 = sum of:
    0.015652342 = weight(_text_:science in 6980) [ClassicSimilarity], result of:
      0.015652342 = score(doc=6980,freq=2.0), product of:
        0.13445559 = queryWeight, product of:
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.05104385 = queryNorm
        0.11641272 = fieldWeight in 6980, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          2.6341193 = idf(docFreq=8627, maxDocs=44218)
          0.03125 = fieldNorm(doc=6980)
  0.33333334 = coord(1/3)

Source

Journal of the American Society for Information Science and technology. 52(2001) no.3, S.226-234