Search (6 results, page 1 of 1)

0.019540602 = product of:
  0.039081205 = sum of:
    0.017839102 = weight(_text_:information in 37) [ClassicSimilarity], result of:
      0.017839102 = score(doc=37,freq=6.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.20156369 = fieldWeight in 37, 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=37)
    0.021242103 = product of:
      0.042484205 = sum of:
        0.042484205 = weight(_text_:organization in 37) [ClassicSimilarity], result of:
          0.042484205 = score(doc=37,freq=2.0), product of:
            0.17974974 = queryWeight, product of:
              3.5653565 = idf(docFreq=3399, maxDocs=44218)
              0.050415643 = queryNorm
            0.23635197 = fieldWeight in 37, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5653565 = idf(docFreq=3399, maxDocs=44218)
              0.046875 = fieldNorm(doc=37)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

A means of automatically deriving a hierarchical organization of concepts from a set of documents without use of training data or standard clustering techniques is presented. Using a process that extracts salient words and phrases from the documents, these terms are organized hierarchically using a type of co-occurrence known as subsumption. The resulting structure is displayed as a series of hierarchical menus. When generated from a set of retrieved documents, a user browsing the menus gains an overview of their content in a manner distinct from existing techniques. The methods used to build the structure are simple and appear to be effective. The formation and presentation of the hierarchy is described along with a study of some of its properties, including a preliminary experiment, which indicates that users may find the hierarchy a more efficient means of locating relevant documents than the classic method of scanning a ranked document list

Series

The Kluwer international series on information retrieval; 7

Source

Advances in information retrieval: Recent research from the Center for Intelligent Information Retrieval. Ed.: W.B. Croft

0.005757545 = product of:
  0.02303018 = sum of:
    0.02303018 = weight(_text_:information in 5053) [ClassicSimilarity], result of:
      0.02303018 = score(doc=5053,freq=10.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.2602176 = fieldWeight in 5053, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=5053)
  0.25 = coord(1/4)

Abstract

A novel and complex form of information access is cross-language information retrieval: searching for texts written in foreign languages based on native language queries. Although the underlying technology for achieving such a search is relatively well understood, the appropriate interface design is not. The authors present three user evaluations undertaken during the iterative design of Clarity, a cross-language retrieval system for lowdensity languages, and shows how the user-interaction design evolved depending on the results of usability tests. The first test was instrumental to identify weaknesses in both functionalities and interface; the second was run to determine if query translation should be shown or not; the final was a global assessment and focused on user satisfaction criteria. Lessons were learned at every stage of the process leading to a much more informed view of what a cross-language retrieval system should offer to users.

Footnote

Beitrag einer special topic section on multilingual information systems

Source

Journal of the American Society for Information Science and Technology. 57(2006) no.5, S.709-722

0.0052030715 = product of:
  0.020812286 = sum of:
    0.020812286 = weight(_text_:information in 2852) [ClassicSimilarity], result of:
      0.020812286 = score(doc=2852,freq=6.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.23515764 = fieldWeight in 2852, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2852)
  0.25 = coord(1/4)

Abstract

This brief communication describes the results of a questionnaire examining certain aspects of the Web-based information seeking practices of university students. The results are contrasted with past work showing that queries to Web search engines can be assigned to one of a series of categories: navigational, informational, and transactional. The survey results suggest that a large group of queries, which in the past would have been classified as informational, have become at least partially navigational. We contend that this change has occurred because of the rise of large Web sites holding particular types of information, such as Wikipedia and the Internet Movie Database.

Source

Journal of the American Society for Information Science and Technology. 60(2009) no.6, S.1290-1293

0.0036413912 = product of:
  0.014565565 = sum of:
    0.014565565 = weight(_text_:information in 2506) [ClassicSimilarity], result of:
      0.014565565 = score(doc=2506,freq=4.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.16457605 = fieldWeight in 2506, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=2506)
  0.25 = coord(1/4)

Source

Journal of the American Society for Information Science and Technology. 55(2004) no.10, S.923-934

0.0036413912 = product of:
  0.014565565 = sum of:
    0.014565565 = weight(_text_:information in 5052) [ClassicSimilarity], result of:
      0.014565565 = score(doc=5052,freq=4.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.16457605 = fieldWeight in 5052, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=5052)
  0.25 = coord(1/4)

Footnote

Beitrag einer special topic section on multilingual information systems

Source

Journal of the American Society for Information Science and Technology. 57(2006) no.5, S.697-708

0.0025748524 = product of:
  0.01029941 = sum of:
    0.01029941 = weight(_text_:information in 1867) [ClassicSimilarity], result of:
      0.01029941 = score(doc=1867,freq=2.0), product of:
        0.08850355 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.050415643 = queryNorm
        0.116372846 = fieldWeight in 1867, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=1867)
  0.25 = coord(1/4)

Source

Journal of the American Society for Information Science and Technology. 59(2008) no.7, S.1184-1190