Search (281 results, page 1 of 15)

  • × theme_ss:"Suchtaktik"
  1. Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006) 0.07 
    0.06556197 = sum of:
  0.018274104 = product of:
    0.07309642 = sum of:
      0.07309642 = weight(_text_:authors in 5047) [ClassicSimilarity], result of:
        0.07309642 = score(doc=5047,freq=2.0), product of:
          0.2418733 = queryWeight, product of:
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.053056188 = queryNorm
          0.30220953 = fieldWeight in 5047, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.046875 = fieldNorm(doc=5047)
    0.25 = coord(1/4)
  0.047287866 = sum of:
    0.0041575856 = weight(_text_:s in 5047) [ClassicSimilarity], result of:
      0.0041575856 = score(doc=5047,freq=2.0), product of:
        0.057684682 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.053056188 = queryNorm
        0.072074346 = fieldWeight in 5047, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.046875 = fieldNorm(doc=5047)
    0.043130282 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
      0.043130282 = score(doc=5047,freq=2.0), product of:
        0.18579373 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.053056188 = 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)
    Abstract
    The authors report on an experimental study on the differences between spoken and written queries. A set of written and spontaneous spoken queries are generated by users from written topics. These two sets of queries are compared in qualitative terms and in terms of their retrieval effectiveness. Written and spoken queries are compared in terms of length, duration, and part of speech. In addition, assuming perfect transcription of the spoken queries, written and spoken queries are compared in terms of their aptitude to describe relevant documents. The retrieval effectiveness of spoken and written queries is compared using three different information retrieval models. The results show that using speech to formulate one's information need provides a way to express it more naturally and encourages the formulation of longer queries. Despite that, longer spoken queries do not seem to significantly improve retrieval effectiveness compared with written queries.
    Date
    5. 6.2006 11:22:23
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.7, S.881-890
  2. Morse, P.M.: Search theory and browsing (1970) 0.06 
    0.06305049 = product of:
  0.12610099 = sum of:
    0.12610099 = sum of:
      0.011086896 = weight(_text_:s in 1448) [ClassicSimilarity], result of:
        0.011086896 = score(doc=1448,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.19219826 = fieldWeight in 1448, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.125 = fieldNorm(doc=1448)
      0.11501409 = weight(_text_:22 in 1448) [ClassicSimilarity], result of:
        0.11501409 = score(doc=1448,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.61904186 = fieldWeight in 1448, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.125 = fieldNorm(doc=1448)
  0.5 = coord(1/2)
    Date
    22. 5.2005 19:53:09
    Source
    Library quarterly. 40(1970), S.391-408
  3. Morse, P.M.: Browsing and search theory (1973) 0.06 
    0.055169184 = product of:
  0.11033837 = sum of:
    0.11033837 = sum of:
      0.009701034 = weight(_text_:s in 3339) [ClassicSimilarity], result of:
        0.009701034 = score(doc=3339,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.16817348 = fieldWeight in 3339, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.109375 = fieldNorm(doc=3339)
      0.10063733 = weight(_text_:22 in 3339) [ClassicSimilarity], result of:
        0.10063733 = score(doc=3339,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.5416616 = fieldWeight in 3339, 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=3339)
  0.5 = coord(1/2)
    Date
    22. 5.2005 19:52:29
    Pages
    S.246-261
  4. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.06 
    0.055169184 = product of:
  0.11033837 = sum of:
    0.11033837 = sum of:
      0.009701034 = weight(_text_:s in 3924) [ClassicSimilarity], result of:
        0.009701034 = score(doc=3924,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.16817348 = fieldWeight in 3924, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.109375 = fieldNorm(doc=3924)
      0.10063733 = weight(_text_:22 in 3924) [ClassicSimilarity], result of:
        0.10063733 = score(doc=3924,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    Source
    Library and information science research. 22(2000) no.4, S.371-382
  5. Pejtersen, A.M.: Design of a classification scheme for fiction based on an analysis of actual user-librarian communication, and use of the scheme for control of librarians' search strategies (1980) 0.04 
    0.03940656 = product of:
  0.07881312 = sum of:
    0.07881312 = sum of:
      0.00692931 = weight(_text_:s in 5835) [ClassicSimilarity], result of:
        0.00692931 = score(doc=5835,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.120123915 = fieldWeight in 5835, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.078125 = fieldNorm(doc=5835)
      0.07188381 = weight(_text_:22 in 5835) [ClassicSimilarity], result of:
        0.07188381 = score(doc=5835,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.38690117 = fieldWeight in 5835, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=5835)
  0.5 = coord(1/2)
    Date
    5. 8.2006 13:22:44
    Pages
    S.146-159
  6. Shah, C.; Marchionini, G.: Awareness in collaborative information seeking (2010) 0.03 
    0.028783344 = sum of:
  0.025843486 = product of:
    0.103373945 = sum of:
      0.103373945 = weight(_text_:authors in 4082) [ClassicSimilarity], result of:
        0.103373945 = score(doc=4082,freq=4.0), product of:
          0.2418733 = queryWeight, product of:
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.053056188 = queryNorm
          0.42738882 = fieldWeight in 4082, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.046875 = fieldNorm(doc=4082)
    0.25 = coord(1/4)
  0.0029398573 = product of:
    0.0058797146 = sum of:
      0.0058797146 = weight(_text_:s in 4082) [ClassicSimilarity], result of:
        0.0058797146 = score(doc=4082,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.101928525 = fieldWeight in 4082, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=4082)
    0.5 = coord(1/2)
    Abstract
    Support for explicit collaboration in information-seeking activities is increasingly recognized as a desideratum for search systems. Several tools have emerged recently that help groups of people with the same information-seeking goals to work together. Many issues for these collaborative information-seeking (CIS) environments remain understudied. The authors identified awareness as one of these issues in CIS, and they presented a user study that involved 42 pairs of participants, who worked in collaboration over 2 sessions with 3 instances of the authors' CIS system for exploratory search. They showed that while having awareness of personal actions and history is important for exploratory search tasks spanning multiple sessions, support for group awareness is even more significant for effective collaboration. In addition, they showed that support for such group awareness can be provided without compromising usability or introducing additional load on the users.
    Footnote
    Erratum in: Journal of the American Society for Information Science and Technology, 61(2010) no.11, S.2377.
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.10, S.1970-1986
  7. Lee, S.-S.; Theng, Y.-L.; Goh, D.H.-L.: Creative information seeking : part II: empirical verification (2007) 0.03 
    0.025165716 = product of:
  0.050331432 = sum of:
    0.050331432 = sum of:
      0.0072011505 = weight(_text_:s in 813) [ClassicSimilarity], result of:
        0.0072011505 = score(doc=813,freq=6.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.124836445 = fieldWeight in 813, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=813)
      0.043130282 = weight(_text_:22 in 813) [ClassicSimilarity], result of:
        0.043130282 = score(doc=813,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    Date
    23.12.2007 12:22:16
    Source
    Aslib proceedings. 59(2007) no.3, S.205-221
  8. Lin, S.-j.; Belkin, N.: Validation of a model of information seeking over multiple search sessions (2005) 0.02 
    0.024504999 = product of:
  0.049009997 = sum of:
    0.049009997 = sum of:
      0.0058797146 = weight(_text_:s in 3450) [ClassicSimilarity], result of:
        0.0058797146 = score(doc=3450,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.101928525 = fieldWeight in 3450, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=3450)
      0.043130282 = weight(_text_:22 in 3450) [ClassicSimilarity], result of:
        0.043130282 = score(doc=3450,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    Date
    10. 4.2005 14:52:22
    Source
    Journal of the American Society for Information Science and Technology. 56(2005) no.4, S.393-415
  9. Hsieh-Yee, I.: Search tactics of Web users in searching for texts, graphics, known items and subjects : a search simulation study (1998) 0.02 
    0.023643933 = product of:
  0.047287866 = sum of:
    0.047287866 = sum of:
      0.0041575856 = weight(_text_:s in 2404) [ClassicSimilarity], result of:
        0.0041575856 = score(doc=2404,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.072074346 = fieldWeight in 2404, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=2404)
      0.043130282 = weight(_text_:22 in 2404) [ClassicSimilarity], result of:
        0.043130282 = score(doc=2404,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.23214069 = fieldWeight in 2404, 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=2404)
  0.5 = coord(1/2)
    Date
    25.12.1998 19:22:31
    Source
    Reference librarian. 1998, no.60, S.61-85
  10. Limberg, L.: Three conceptions of information seeking and use (1999) 0.02 
    0.023643933 = product of:
  0.047287866 = sum of:
    0.047287866 = sum of:
      0.0041575856 = weight(_text_:s in 281) [ClassicSimilarity], result of:
        0.0041575856 = score(doc=281,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.072074346 = fieldWeight in 281, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=281)
      0.043130282 = weight(_text_:22 in 281) [ClassicSimilarity], result of:
        0.043130282 = score(doc=281,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.23214069 = fieldWeight in 281, 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=281)
  0.5 = coord(1/2)
    Date
    22. 3.2002 9:53:10
    Pages
    S.116-135
  11. Koopmans, N.I.: What's your question? : The need for research information from the perspective of different user groups (2002) 0.02 
    0.023643933 = product of:
  0.047287866 = sum of:
    0.047287866 = sum of:
      0.0041575856 = weight(_text_:s in 3612) [ClassicSimilarity], result of:
        0.0041575856 = score(doc=3612,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.072074346 = fieldWeight in 3612, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=3612)
      0.043130282 = weight(_text_:22 in 3612) [ClassicSimilarity], result of:
        0.043130282 = score(doc=3612,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    Date
    2. 7.2005 12:22:50
    Pages
    S.183-192
  12. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 0.02 
    0.023643933 = product of:
  0.047287866 = sum of:
    0.047287866 = sum of:
      0.0041575856 = weight(_text_:s in 331) [ClassicSimilarity], result of:
        0.0041575856 = score(doc=331,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.072074346 = fieldWeight in 331, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=331)
      0.043130282 = weight(_text_:22 in 331) [ClassicSimilarity], result of:
        0.043130282 = score(doc=331,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    Date
    27. 5.2007 13:55:22
    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.7, S.958-970
  13. Saastamoinen, M.; Järvelin, K.: Search task features in work tasks of varying types and complexity (2017) 0.02 
    0.023643933 = product of:
  0.047287866 = sum of:
    0.047287866 = sum of:
      0.0041575856 = weight(_text_:s in 3589) [ClassicSimilarity], result of:
        0.0041575856 = score(doc=3589,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.072074346 = fieldWeight in 3589, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=3589)
      0.043130282 = weight(_text_:22 in 3589) [ClassicSimilarity], result of:
        0.043130282 = score(doc=3589,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.23214069 = fieldWeight in 3589, 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=3589)
  0.5 = coord(1/2)
    Abstract
    Information searching in practice seldom is an end in itself. In work, work task (WT) performance forms the context, which information searching should serve. Therefore, information retrieval (IR) systems development/evaluation should take the WT context into account. The present paper analyzes how WT features: task complexity and task types, affect information searching in authentic work: the types of information needs, search processes, and search media. We collected data on 22 information professionals in authentic work situations in three organization types: city administration, universities, and companies. The data comprise 286 WTs and 420 search tasks (STs). The data include transaction logs, video recordings, daily questionnaires, interviews. and observation. The data were analyzed quantitatively. Even if the participants used a range of search media, most STs were simple throughout the data, and up to 42% of WTs did not include searching. WT's effects on STs are not straightforward: different WT types react differently to WT complexity. Due to the simplicity of authentic searching, the WT/ST types in interactive IR experiments should be reconsidered.
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1111-1123
  14. Spink, A.; Cole, C.: Human information behavior : integrating diverse approaches and information use (2006) 0.02 
    0.023268566 = sum of:
  0.021536238 = product of:
    0.086144954 = sum of:
      0.086144954 = weight(_text_:authors in 4915) [ClassicSimilarity], result of:
        0.086144954 = score(doc=4915,freq=4.0), product of:
          0.2418733 = queryWeight, product of:
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.053056188 = queryNorm
          0.35615736 = fieldWeight in 4915, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4915)
    0.25 = coord(1/4)
  0.0017323275 = product of:
    0.003464655 = sum of:
      0.003464655 = weight(_text_:s in 4915) [ClassicSimilarity], result of:
        0.003464655 = score(doc=4915,freq=2.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.060061958 = fieldWeight in 4915, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4915)
    0.5 = coord(1/2)
    Abstract
    For millennia humans have sought, organized, and used information as they learned and evolved patterns of human information behaviors to resolve their human problems and survive. However, despite the current focus an living in an "information age," we have a limited evolutionary understanding of human information behavior. In this article the authors examine the current three interdisciplinary approaches to conceptualizing how humans have sought information including (a) the everyday life information seeking-sense-making approach, (b) the information foraging approach, and (c) the problem-solution perspective an information seeking approach. In addition, due to the lack of clarity regarding the rote of information use in information behavior, a fourth information approach is provided based an a theory of information use. The use theory proposed starts from an evolutionary psychology notion that humans are able to adapt to their environment and survive because of our modular cognitive architecture. Finally, the authors begin the process of conceptualizing these diverse approaches, and the various aspects or elements of these approaches, within an integrated model with consideration of information use. An initial integrated model of these different approaches with information use is proposed.
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.1, S.25-35
  15. Xie, I.; Joo, S.: Factors affecting the selection of search tactics : tasks, knowledge, process, and systems (2012) 0.02 
    0.021213962 = sum of:
  0.018274104 = product of:
    0.07309642 = sum of:
      0.07309642 = weight(_text_:authors in 2739) [ClassicSimilarity], result of:
        0.07309642 = score(doc=2739,freq=2.0), product of:
          0.2418733 = queryWeight, product of:
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.053056188 = queryNorm
          0.30220953 = fieldWeight in 2739, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.558814 = idf(docFreq=1258, maxDocs=44218)
            0.046875 = fieldNorm(doc=2739)
    0.25 = coord(1/4)
  0.0029398573 = product of:
    0.0058797146 = sum of:
      0.0058797146 = weight(_text_:s in 2739) [ClassicSimilarity], result of:
        0.0058797146 = score(doc=2739,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.101928525 = fieldWeight in 2739, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.046875 = fieldNorm(doc=2739)
    0.5 = coord(1/2)
    Abstract
    This study investigated whether and how different factors in relation to task, user-perceived knowledge, search process, and system affect users' search tactic selection. Thirty-one participants, representing the general public with their own tasks, were recruited for this study. Multiple methods were employed to collect data, including pre-questionnaire, verbal protocols, log analysis, diaries, and post-questionnaires. Statistical analysis revealed that seven factors were significantly associated with tactic selection. These factors consist of work task types, search task types, familiarity with topic, search skills, search session length, search phases, and system types. Moreover, the study also discovered, qualitatively, in what ways these factors influence the selection of search tactics. Based on the findings, the authors discuss practical implications for system design to support users' application of multiple search tactics for each factor.
    Source
    Information processing and management. 48(2012) no.2, S.254-270
  16. Vakkari, P.; Pennanen, M.; Serola, S.: Changes of search terms and tactics while writing a research proposal : a longitudinal case study (2003) 0.02 
    0.020420834 = product of:
  0.04084167 = sum of:
    0.04084167 = sum of:
      0.004899762 = weight(_text_:s in 1073) [ClassicSimilarity], result of:
        0.004899762 = score(doc=1073,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.08494043 = fieldWeight in 1073, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1073)
      0.035941906 = weight(_text_:22 in 1073) [ClassicSimilarity], result of:
        0.035941906 = score(doc=1073,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = 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)
    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.
    Source
    Information processing and management. 39(2003) no.3, S.445-463
  17. Aloteibi, S.; Sanderson, M.: Analyzing geographic query reformulation : an exploratory study (2014) 0.02 
    0.020420834 = product of:
  0.04084167 = sum of:
    0.04084167 = sum of:
      0.004899762 = weight(_text_:s in 1177) [ClassicSimilarity], result of:
        0.004899762 = score(doc=1177,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.08494043 = fieldWeight in 1177, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=1177)
      0.035941906 = weight(_text_:22 in 1177) [ClassicSimilarity], result of:
        0.035941906 = score(doc=1177,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.19345059 = fieldWeight in 1177, 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=1177)
  0.5 = coord(1/2)
    Date
    26. 1.2014 18:48:22
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.1, S.13-24
  18. Monchaux, S.; Amadieu, F.; Chevalier, A.; Mariné, C.: Query strategies during information searching : effects of prior domain knowledge and complexity of the information problems to be solved (2015) 0.02 
    0.020420834 = product of:
  0.04084167 = sum of:
    0.04084167 = sum of:
      0.004899762 = weight(_text_:s in 2680) [ClassicSimilarity], result of:
        0.004899762 = score(doc=2680,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.08494043 = fieldWeight in 2680, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=2680)
      0.035941906 = weight(_text_:22 in 2680) [ClassicSimilarity], result of:
        0.035941906 = score(doc=2680,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.19345059 = fieldWeight in 2680, 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=2680)
  0.5 = coord(1/2)
    Date
    25. 1.2016 18:46:22
    Source
    Information processing and management. 51(2015) no.5, S.557-569
  19. Pontis, S.; Blandford, A.; Greifeneder, E.; Attalla, H.; Neal, D.: Keeping up to date : an academic researcher's information journey (2017) 0.02 
    0.020420834 = product of:
  0.04084167 = sum of:
    0.04084167 = sum of:
      0.004899762 = weight(_text_:s in 3340) [ClassicSimilarity], result of:
        0.004899762 = score(doc=3340,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.08494043 = fieldWeight in 3340, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=3340)
      0.035941906 = weight(_text_:22 in 3340) [ClassicSimilarity], result of:
        0.035941906 = score(doc=3340,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.19345059 = fieldWeight in 3340, 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=3340)
  0.5 = coord(1/2)
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.1, S.22-35
  20. Hopkins, M.E.; Zavalina, O.L.: Evaluating physicians' serendipitous knowledge discovery in online discovery systems : a new approach (2019) 0.02 
    0.020420834 = product of:
  0.04084167 = sum of:
    0.04084167 = sum of:
      0.004899762 = weight(_text_:s in 5842) [ClassicSimilarity], result of:
        0.004899762 = score(doc=5842,freq=4.0), product of:
          0.057684682 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.053056188 = queryNorm
          0.08494043 = fieldWeight in 5842, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0390625 = fieldNorm(doc=5842)
      0.035941906 = weight(_text_:22 in 5842) [ClassicSimilarity], result of:
        0.035941906 = score(doc=5842,freq=2.0), product of:
          0.18579373 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.053056188 = queryNorm
          0.19345059 = fieldWeight in 5842, 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=5842)
  0.5 = coord(1/2)
    Abstract
    Purpose A new approach to investigate serendipitous knowledge discovery (SKD) of health information is developed and tested to evaluate the information flow-serendipitous knowledge discovery (IF-SKD) model. The purpose of this paper is to determine the degree to which IF-SKD reflects physicians' information behaviour in a clinical setting and explore how the information system, Spark, designed to support physicians' SKD, meets its goals. Design/methodology/approach The proposed pre-experimental study design employs an adapted version of the McCay-Peet's (2013) and McCay-Peet et al.'s (2015) serendipitous digital environment (SDE) questionnaire research tool to address the complexity associated with defining the way in which SKD is understood and applied in system design. To test the IF-SKD model, the new data analysis approach combining confirmatory factor analysis, data imputation and Monte Carlo simulations was developed. Findings The piloting of the proposed novel analysis approach demonstrated that small sample information behaviour survey data can be meaningfully examined using a confirmatory factor analysis technique. Research limitations/implications This method allows to improve the reliability in measuring SKD and the generalisability of findings. Originality/value This paper makes an original contribution to developing and refining methods and tools of research into information-system-supported serendipitous discovery of information by health providers.
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 71(2019) no.6, S.755-772

Authors

Years

Languages

  • e 268
  • d 10
  • ja 1
  • slv 1
  • More… Less…

Types

  • a 266
  • m 11
  • s 3
  • r 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications