Search (25 results, page 2 of 2)

  • × author_ss:"Marchionini, G."
  • × type_ss:"a"
  1. Ding, W.; Marchionini, G.: ¬A comparative study of Web search service performance (1996) 0.00
    0.0025938996 = product of:
      0.015563398 = sum of:
        0.015563398 = weight(_text_:information in 4807) [ClassicSimilarity], result of:
          0.015563398 = score(doc=4807,freq=6.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.20156369 = fieldWeight in 4807, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=4807)
      0.16666667 = coord(1/6)
    
    Imprint
    Medford, NJ : Learned Information
    Source
    Global complexity: information, chaos and control. Proceedings of the 59th Annual Meeting of the American Society for Information Science, ASIS'96, Baltimore, Maryland, 21-24 Oct 1996. Ed.: S. Hardin
  2. Marchionini, G.: Co-evolution of user and organizational interfaces : a longitudinal case study of WWW dissemination of national statistics (2002) 0.00
    0.0024708952 = product of:
      0.014825371 = sum of:
        0.014825371 = weight(_text_:information in 1252) [ClassicSimilarity], result of:
          0.014825371 = score(doc=1252,freq=4.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.1920054 = fieldWeight in 1252, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1252)
      0.16666667 = coord(1/6)
    
    Abstract
    The data systems, policies and procedures, corporate culture, and public face of an agency or institution make up its organizational interface. This case study describes how user interfaces for the Bureau of Labor Statistics web site evolved over a 5-year period along with the [arger organizational interface and how this co-evolution has influenced the institution itself. Interviews with BLS staff and transaction log analysis are the foci in this analysis that also included user informationseeking studies and user interface prototyping and testing. The results are organized into a model of organizational interface change and related to the information life cycle.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.14, S.1192-1209
  3. Marchionini, G.; Liebscher, P.: Performance in electronic encyclopedias : implications for adaptive systems (1991) 0.00
    0.0017471868 = product of:
      0.010483121 = sum of:
        0.010483121 = weight(_text_:information in 3691) [ClassicSimilarity], result of:
          0.010483121 = score(doc=3691,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.13576832 = fieldWeight in 3691, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3691)
      0.16666667 = coord(1/6)
    
    Imprint
    Medford : Learned Information Inc.
  4. White, R.W.; Marchionini, G.: Examining the effectiveness of real-time query expansion (2007) 0.00
    0.0017292666 = product of:
      0.010375599 = sum of:
        0.010375599 = weight(_text_:information in 913) [ClassicSimilarity], result of:
          0.010375599 = score(doc=913,freq=6.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.1343758 = fieldWeight in 913, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=913)
      0.16666667 = coord(1/6)
    
    Abstract
    Interactive query expansion (IQE) (c.f. [Efthimiadis, E. N. (1996). Query expansion. Annual Review of Information Systems and Technology, 31, 121-187]) is a potentially useful technique to help searchers formulate improved query statements, and ultimately retrieve better search results. However, IQE is seldom used in operational settings. Two possible explanations for this are that IQE is generally not integrated into searchers' established information-seeking behaviors (e.g., examining lists of documents), and it may not be offered at a time in the search when it is needed most (i.e., during the initial query formulation). These challenges can be addressed by coupling IQE more closely with familiar search activities, rather than as a separate functionality that searchers must learn. In this article we introduce and evaluate a variant of IQE known as Real-Time Query Expansion (RTQE). As a searcher enters their query in a text box at the interface, RTQE provides a list of suggested additional query terms, in effect offering query expansion options while the query is formulated. To investigate how the technique is used - and when it may be useful - we conducted a user study comparing three search interfaces: a baseline interface with no query expansion support; an interface that provides expansion options during query entry, and a third interface that provides options after queries have been submitted to a search system. The results show that offering RTQE leads to better quality initial queries, more engagement in the search, and an increase in the uptake of query expansion. However, the results also imply that care must be taken when implementing RTQE interactively. Our findings have broad implications for how IQE should be offered, and form part of our research on the development of techniques to support the increased use of query expansion.
    Source
    Information processing and management. 43(2007) no.3, S.685-704
  5. Marchionini, G.; Wildemuth, B.M.; Geisler, G.: ¬The Open Video Digital Library : a Möbius strip of research and practice (2006) 0.00
    0.0012479905 = product of:
      0.007487943 = sum of:
        0.007487943 = weight(_text_:information in 6114) [ClassicSimilarity], result of:
          0.007487943 = score(doc=6114,freq=2.0), product of:
            0.0772133 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.043984205 = queryNorm
            0.09697737 = fieldWeight in 6114, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6114)
      0.16666667 = coord(1/6)
    
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.12, S.1629-1643