Search (25 results, page 2 of 2)

0.0022544665 = product of:
  0.0067633996 = sum of:
    0.0067633996 = product of:
      0.020290198 = sum of:
        0.020290198 = weight(_text_:science in 1330) [ClassicSimilarity], result of:
          0.020290198 = score(doc=1330,freq=2.0), product of:
            0.11619691 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.044112243 = queryNorm
            0.17461908 = fieldWeight in 1330, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=1330)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Source

Journal of the American Society for Information Science and Technology. 58(2007) no.14, S.2382-2400

0.0018787221 = product of:
  0.0056361663 = sum of:
    0.0056361663 = product of:
      0.016908498 = sum of:
        0.016908498 = weight(_text_:science in 2420) [ClassicSimilarity], result of:
          0.016908498 = score(doc=2420,freq=2.0), product of:
            0.11619691 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.044112243 = queryNorm
            0.1455159 = fieldWeight in 2420, 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=2420)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Abstract

The primary aim of the study was to investigate the effect of the absence of postings information on online searches and searching behaviour and these results were reported in Journal of information science 20(1994) no.1. The secondary aim, reported here, was to assess the cognitive styles of the participants to ensure that the population was sufficiently vareid in this respect and to investigate possible correlations between cognitive ability and searching behaviour. Throughout the project, searches were made by postgraduates at the department of information studies, University of Sheffield using the LISA database on CD-ROM. A total of 67 searchers carried out 275 searches, both with and without postings information. Reports significant differences in both searching behaviour and search outcomes obtained by those with different learning styles, with and without postings information. Significant correlations were found between cognitice styles and online searching. Searchers characterized by different learning styles tend to adopt different search strategies and strategies associated with comprehension and operation learning styles result in qualitatively different searching performance. Searching approaches associated with a versatile style are the most effective. Making feedback in the form of postings available enables comprehension and operation learners, and field independent searchers, to change their apporach in qualitatively different ways. Other findings are reported and discussed

0.0018787221 = product of:
  0.0056361663 = sum of:
    0.0056361663 = product of:
      0.016908498 = sum of:
        0.016908498 = weight(_text_:science in 4604) [ClassicSimilarity], result of:
          0.016908498 = score(doc=4604,freq=2.0), product of:
            0.11619691 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.044112243 = queryNorm
            0.1455159 = fieldWeight in 4604, 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=4604)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Source

Journal of the American Society for Information Science. 51(2000) no.6, S.543-557

0.00185984 = product of:
  0.00557952 = sum of:
    0.00557952 = product of:
      0.01673856 = sum of:
        0.01673856 = weight(_text_:science in 1255) [ClassicSimilarity], result of:
          0.01673856 = score(doc=1255,freq=4.0), product of:
            0.11619691 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.044112243 = queryNorm
            0.1440534 = fieldWeight in 1255, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1255)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Abstract

As digital libraries become a major source of information for many people, we need to know more about how people seek and retrieve information in digital environments. Quite commonly, users with a problem-at-hand and associated question-in-mind repeatedly search a literature for answers, and seek information in stages over extended periods from a variety of digital information resources. The process of repeatedly searching over time in relation to a specific, but possibly an evolving information problem (including changes or shifts in a variety of variables), is called the successive search phenomenon. The study outlined in this paper is currently investigating this new and little explored line of inquiry for information retrieval, Web searching, and digital libraries. The purpose of the research project is to investigate the nature, manifestations, and behavior of successive searching by users in digital environments, and to derive criteria for use in the design of information retrieval interfaces and systems supporting successive searching behavior. This study includes two related projects. The first project is based in the School of Library and Information Sciences at the University of North Texas and is funded by a National Science Foundation POWRE Grant <http://www.nsf.gov/cgi-bin/show?award=9753277>. The second project is based at the Department of Information Studies at the University of Sheffield (UK) and is funded by a grant from the British Library <http://www.shef. ac.uk/~is/research/imrg/uncerty.html> Research and Innovation Center. The broad objectives of each project are to examine the nature and extent of successive search episodes in digital environments by real users over time. The specific aim of the current project is twofold: * To characterize progressive changes and shifts that occur in: user situational context; user information problem; uncertainty reduction; user cognitive styles; cognitive and affective states of the user, and consequently in their queries; and * To characterize related changes over time in the type and use of information resources and search strategies particularly related to given capabilities of IR systems, and IR search engines, and examine changes in users' relevance judgments and criteria, and characterize their differences. The study is an observational, longitudinal data collection in the U.S. and U.K. Three questionnaires are used to collect data: reference, client post search and searcher post search questionnaires. Each successive search episode with a search intermediary for textual materials on the DIALOG Information Service is audiotaped and search transaction logs are recorded. Quantitative analysis includes statistical analysis using Likert scale data from the questionnaires and log-linear analysis of sequential data. Qualitative methods include: content analysis, structuring taxonomies; and diagrams to describe shifts and transitions within and between each search episode. Outcomes of the study are the development of appropriate model(s) for IR interactions in successive search episodes and the derivation of a set of design criteria for interfaces and systems supporting successive searching.

0.0015029777 = product of:
  0.004508933 = sum of:
    0.004508933 = product of:
      0.013526798 = sum of:
        0.013526798 = weight(_text_:science in 5167) [ClassicSimilarity], result of:
          0.013526798 = score(doc=5167,freq=2.0), product of:
            0.11619691 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.044112243 = queryNorm
            0.11641272 = fieldWeight in 5167, 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=5167)
      0.33333334 = coord(1/3)
  0.33333334 = coord(1/3)

Source

Journal of the American Society for Information Science and technology. 54(2003) no.6, S.473-488