Search (11 results, page 1 of 1)

  • × theme_ss:"Suchtaktik"
  • × year_i:[2000 TO 2010}
  1. Pera, M.S.; Lund, W.; Ng, Y.-K.: ¬A sophisticated library search strategy using folksonomies and similarity matching (2009) 0.04
    0.036989365 = product of:
      0.07397873 = sum of:
        0.07397873 = product of:
          0.14795746 = sum of:
            0.14795746 = weight(_text_:q in 2939) [ClassicSimilarity], result of:
              0.14795746 = score(doc=2939,freq=4.0), product of:
                0.28916505 = queryWeight, product of:
                  6.5493927 = idf(docFreq=171, maxDocs=44218)
                  0.04415143 = queryNorm
                0.5116713 = fieldWeight in 2939, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  6.5493927 = idf(docFreq=171, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2939)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Libraries, private and public, offer valuable resources to library patrons. As of today, the only way to locate information archived exclusively in libraries is through their catalogs. Library patrons, however, often find it difficult to formulate a proper query, which requires using specific keywords assigned to different fields of desired library catalog records, to obtain relevant results. These improperly formulated queries often yield irrelevant results or no results at all. This negative experience in dealing with existing library systems turns library patrons away from directly querying library catalogs; instead, they rely on Web search engines to perform their searches first, and upon obtaining the initial information (e.g., titles, subject headings, or authors) on the desired library materials, they query library catalogs. This searching strategy is an evidence of failure of today's library systems. In solving this problem, we propose an enhanced library system, which allows partial, similarity matching of (a) tags defined by ordinary users at a folksonomy site that describe the content of books and (b) unrestricted keywords specified by an ordinary library patron in a query to search for relevant library catalog records. The proposed library system allows patrons posting a query Q using commonly used words and ranks the retrieved results according to their degrees of resemblance with Q while maintaining the query processing time comparable with that achieved by current library search engines.
  2. Spink, A.; Ozmultu, H.C.: Characteristics of question format web queries : an exploratory study (2002) 0.03
    0.026155427 = product of:
      0.052310854 = sum of:
        0.052310854 = product of:
          0.10462171 = sum of:
            0.10462171 = weight(_text_:q in 3910) [ClassicSimilarity], result of:
              0.10462171 = score(doc=3910,freq=2.0), product of:
                0.28916505 = queryWeight, product of:
                  6.5493927 = idf(docFreq=171, maxDocs=44218)
                  0.04415143 = queryNorm
                0.3618062 = fieldWeight in 3910, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.5493927 = idf(docFreq=171, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3910)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Web queries in question format are becoming a common element of a user's interaction with Web search engines. Web search services such as Ask Jeeves - a publicly accessible question and answer (Q&A) search engine - request users to enter question format queries. This paper provides results from a study examining queries in question format submitted to two different Web search engines - Ask Jeeves that explicitly encourages queries in question format and the Excite search service that does not explicitly encourage queries in question format. We identify the characteristics of queries in question format in two different data sets: (1) 30,000 Ask Jeeves queries and 15,575 Excite queries, including the nature, length, and structure of queries in question format. Findings include: (1) 50% of Ask Jeeves queries and less than 1% of Excite were in question format, (2) most users entered only one query in question format with little query reformulation, (3) limited range of formats for queries in question format - mainly "where", "what", or "how" questions, (4) most common question query format was "Where can I find ..." for general information on a topic, and (5) non-question queries may be in request format. Overall, four types of user Web queries were identified: keyword, Boolean, question, and request. These findings provide an initial mapping of the structure and content of queries in question and request format. Implications for Web search services are discussed.
  3. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.02
    0.020936681 = product of:
      0.041873362 = sum of:
        0.041873362 = product of:
          0.083746724 = sum of:
            0.083746724 = weight(_text_:22 in 3924) [ClassicSimilarity], result of:
              0.083746724 = score(doc=3924,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.5416616 = fieldWeight in 3924, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3924)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Library and information science research. 22(2000) no.4, S.371-382
  4. Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005) 0.01
    0.008972864 = product of:
      0.017945727 = sum of:
        0.017945727 = product of:
          0.035891455 = sum of:
            0.035891455 = weight(_text_:22 in 3450) [ClassicSimilarity], result of:
              0.035891455 = score(doc=3450,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.23214069 = fieldWeight in 3450, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3450)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    10. 4.2005 14:52:22
  5. Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002) 0.01
    0.008972864 = product of:
      0.017945727 = sum of:
        0.017945727 = product of:
          0.035891455 = sum of:
            0.035891455 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
              0.035891455 = score(doc=3612,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.23214069 = fieldWeight in 3612, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3612)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    2. 7.2005 12:22:50
  6. Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006) 0.01
    0.008972864 = product of:
      0.017945727 = sum of:
        0.017945727 = product of:
          0.035891455 = sum of:
            0.035891455 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
              0.035891455 = score(doc=5047,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.23214069 = fieldWeight in 5047, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5047)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    5. 6.2006 11:22:23
  7. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 0.01
    0.008972864 = product of:
      0.017945727 = sum of:
        0.017945727 = product of:
          0.035891455 = sum of:
            0.035891455 = weight(_text_:22 in 331) [ClassicSimilarity], result of:
              0.035891455 = score(doc=331,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.23214069 = fieldWeight in 331, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=331)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    27. 5.2007 13:55:22
  8. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007) 0.01
    0.008972864 = product of:
      0.017945727 = sum of:
        0.017945727 = product of:
          0.035891455 = sum of:
            0.035891455 = weight(_text_:22 in 813) [ClassicSimilarity], result of:
              0.035891455 = score(doc=813,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.23214069 = fieldWeight in 813, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=813)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    23.12.2007 12:22:16
  9. Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003) 0.01
    0.0074773864 = product of:
      0.014954773 = sum of:
        0.014954773 = product of:
          0.029909546 = sum of:
            0.029909546 = weight(_text_:22 in 1073) [ClassicSimilarity], result of:
              0.029909546 = score(doc=1073,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.19345059 = fieldWeight in 1073, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1073)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The study analyses how students' growing understanding of the topic and search experience were related to their choice of search tactics and terms while preparing a research proposal for a small empirical study. In addition to that, the findings of the study are used to test Vakkari's (2001) theory of task-based IR. The research subjects were 22 students of psychology attending a seminar for preparing the proposal. They made a search for their task in PsychINFO database at the beginning and end of the seminar. Data were collected in several ways. A pre- and post-search interview was conducted in both sessions. The students were asked to think aloud in the sessions. This was recorded as were the transaction logs. The results show that search experience was slightly related to the change of facets. Although the students' vocabulary of the topic grew generating an increased use of specific terms between the sessions, their use of search tactics and operators remained fairly constant. There was no correlation between the terms and tactics used and the total number of useful references found. By comparing these results with the findings of relevant earlier studies the conclusion was drawn that domain knowledge has an impact on searching assuming that users have a sufficient command of the system used. This implies that the tested theory of task-based IR is valid on condition that the searchers are experienced. It is suggested that the theory should be enriched by including search experience in its scope.
  10. Mansourian, Y.: Contextual elements and conceptual components of information visibility on the web (2008) 0.01
    0.0074773864 = product of:
      0.014954773 = sum of:
        0.014954773 = product of:
          0.029909546 = sum of:
            0.029909546 = weight(_text_:22 in 2603) [ClassicSimilarity], result of:
              0.029909546 = score(doc=2603,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.19345059 = fieldWeight in 2603, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2603)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    1. 1.2009 10:22:40
  11. Drabenstott, K.M.: Web search strategies (2000) 0.01
    0.005981909 = product of:
      0.011963818 = sum of:
        0.011963818 = product of:
          0.023927636 = sum of:
            0.023927636 = weight(_text_:22 in 1188) [ClassicSimilarity], result of:
              0.023927636 = score(doc=1188,freq=2.0), product of:
                0.15461078 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04415143 = queryNorm
                0.15476047 = fieldWeight in 1188, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1188)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 9.1997 19:16:05