Document (#34095)

Author
Díaz, A.
García, A.
Gervás, P.
Title
User-centred versus system-centred evaluation of a personalization system
Source
Information processing and management. 44(2008) no.3, S.1293-1307
Year
2008
Abstract
Some of the most popular measures to evaluate information filtering systems are usually independent of the users because they are based in relevance judgments obtained from experts. On the other hand, the user-centred evaluation allows showing the different impressions that the users have perceived about the system running. This work is focused on discussing the problem of user-centred versus system-centred evaluation of a Web content personalization system where the personalization is based on a user model that stores long term (section, categories and keywords) and short term interests (adapted from user provided feedback). The user-centred evaluation is based on questionnaires filled in by the users before and after using the system and the system-centred evaluation is based on the comparison between ranking of documents, obtained from the application of a multi-tier selection process, and binary relevance judgments collected previously from real users. The user-centred and system-centred evaluations performed with 106 users during 14 working days have provided valuable data concerning the behaviour of the users with respect to issues such as document relevance or the relative importance attributed to different ways of personalization. The results obtained shows general satisfaction on both the personalization processes (selection, adaptation and presentation) and the system as a whole.
Theme
Retrievalstudien

Similar documents (author)

  1. Díaz, P.: Usability of hypermedia educational e-books (2003) 2.00 
    1.997549 = sum of:
  1.997549 = product of:
    3.995098 = sum of:
      3.995098 = weight(author_txt:díaz in 2198) [ClassicSimilarity], result of:
        3.995098 = score(doc=2198,freq=1.0), product of:
          0.7462266 = queryWeight, product of:
            1.0587629 = boost
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.08228019 = queryNorm
          5.353733 = fieldWeight in 2198, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.625 = fieldNorm(doc=2198)
    0.5 = coord(1/2)
  2. Díaz, J.P. -> Pino-Díaz, J.: 1.98 
    1.9774728 = sum of:
  1.9774728 = product of:
    3.9549456 = sum of:
      3.9549456 = weight(author_txt:díaz in 1052) [ClassicSimilarity], result of:
        3.9549456 = score(doc=1052,freq=2.0), product of:
          0.7462266 = queryWeight, product of:
            1.0587629 = boost
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.08228019 = queryNorm
          5.299926 = fieldWeight in 1052, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.4375 = fieldNorm(doc=1052)
    0.5 = coord(1/2)
  3. Esteban, A. Díaz -> Díaz Esteban, A.: 1.69 
    1.6949766 = sum of:
  1.6949766 = product of:
    3.3899531 = sum of:
      3.3899531 = weight(author_txt:díaz in 3747) [ClassicSimilarity], result of:
        3.3899531 = score(doc=3747,freq=2.0), product of:
          0.7462266 = queryWeight, product of:
            1.0587629 = boost
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.08228019 = queryNorm
          4.5427933 = fieldWeight in 3747, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.375 = fieldNorm(doc=3747)
    0.5 = coord(1/2)
  4. Díaz, N.P. Cruz -> Cruz Díaz, N.P.: 1.69 
    1.6949766 = sum of:
  1.6949766 = product of:
    3.3899531 = sum of:
      3.3899531 = weight(author_txt:díaz in 1233) [ClassicSimilarity], result of:
        3.3899531 = score(doc=1233,freq=2.0), product of:
          0.7462266 = queryWeight, product of:
            1.0587629 = boost
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.08228019 = queryNorm
          4.5427933 = fieldWeight in 1233, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.375 = fieldNorm(doc=1233)
    0.5 = coord(1/2)
  5. Ortuño, P.M. Díaz => Díaz Ortuño, P.M.: 1.69 
    1.6949766 = sum of:
  1.6949766 = product of:
    3.3899531 = sum of:
      3.3899531 = weight(author_txt:díaz in 756) [ClassicSimilarity], result of:
        3.3899531 = score(doc=756,freq=2.0), product of:
          0.7462266 = queryWeight, product of:
            1.0587629 = boost
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.08228019 = queryNorm
          4.5427933 = fieldWeight in 756, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.565973 = idf(docFreq=22, maxDocs=44421)
            0.375 = fieldNorm(doc=756)
    0.5 = coord(1/2)

Similar documents (content)

  1. Díaz, A.; Gervás, P.: User-model based personalized summarization (2007) 0.38 
    0.3824254 = sum of:
  0.3824254 = product of:
    1.0622927 = sum of:
      0.048524946 = weight(abstract_txt:stores in 1952) [ClassicSimilarity], result of:
        0.048524946 = score(doc=1952,freq=1.0), product of:
          0.09596371 = queryWeight, product of:
            1.1319268 = boost
            8.090549 = idf(docFreq=36, maxDocs=44421)
            0.010478779 = queryNorm
          0.50565934 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.090549 = idf(docFreq=36, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.020199884 = weight(abstract_txt:term in 1952) [ClassicSimilarity], result of:
        0.020199884 = score(doc=1952,freq=1.0), product of:
          0.06740719 = queryWeight, product of:
            1.3416306 = boost
            4.794713 = idf(docFreq=998, maxDocs=44421)
            0.010478779 = queryNorm
          0.29966956 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.794713 = idf(docFreq=998, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.057033494 = weight(abstract_txt:relevance in 1952) [ClassicSimilarity], result of:
        0.057033494 = score(doc=1952,freq=3.0), product of:
          0.10687686 = queryWeight, product of:
            2.0690324 = boost
            4.929532 = idf(docFreq=872, maxDocs=44421)
            0.010478779 = queryNorm
          0.53363746 = fieldWeight in 1952, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.929532 = idf(docFreq=872, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.05235201 = weight(abstract_txt:obtained in 1952) [ClassicSimilarity], result of:
        0.05235201 = score(doc=1952,freq=1.0), product of:
          0.14558825 = queryWeight, product of:
            2.4148414 = boost
            5.7534328 = idf(docFreq=382, maxDocs=44421)
            0.010478779 = queryNorm
          0.35958955 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7534328 = idf(docFreq=382, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.04118395 = weight(abstract_txt:evaluation in 1952) [ClassicSimilarity], result of:
        0.04118395 = score(doc=1952,freq=1.0), product of:
          0.14709762 = queryWeight, product of:
            3.1336656 = boost
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.010478779 = queryNorm
          0.279977 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.08463089 = weight(abstract_txt:user in 1952) [ClassicSimilarity], result of:
        0.08463089 = score(doc=1952,freq=7.0), product of:
          0.13904315 = queryWeight, product of:
            3.6048622 = boost
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.010478779 = queryNorm
          0.60866636 = fieldWeight in 1952, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.031639945 = weight(abstract_txt:system in 1952) [ClassicSimilarity], result of:
        0.031639945 = score(doc=1952,freq=1.0), product of:
          0.15009572 = queryWeight, product of:
            4.2468824 = boost
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.010478779 = queryNorm
          0.21079844 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.37504306 = weight(abstract_txt:personalization in 1952) [ClassicSimilarity], result of:
        0.37504306 = score(doc=1952,freq=3.0), product of:
          0.4447685 = queryWeight, product of:
            5.4490004 = boost
            7.7894444 = idf(docFreq=49, maxDocs=44421)
            0.010478779 = queryNorm
          0.8432321 = fieldWeight in 1952, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.7894444 = idf(docFreq=49, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
      0.35168454 = weight(abstract_txt:centred in 1952) [ClassicSimilarity], result of:
        0.35168454 = score(doc=1952,freq=1.0), product of:
          0.7475611 = queryWeight, product of:
            9.477841 = boost
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.010478779 = queryNorm
          0.47044253 = fieldWeight in 1952, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.0625 = fieldNorm(doc=1952)
    0.36 = coord(9/25)
  2. Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-assisted search term selection and query expansion : a review of user-centred studies (2002) 0.24 
    0.2364698 = sum of:
  0.2364698 = product of:
    0.844535 = sum of:
      0.011228434 = weight(abstract_txt:different in 2330) [ClassicSimilarity], result of:
        0.011228434 = score(doc=2330,freq=1.0), product of:
          0.039271705 = queryWeight, product of:
            1.0240465 = boost
            3.6597328 = idf(docFreq=3107, maxDocs=44421)
            0.010478779 = queryNorm
          0.28591663 = fieldWeight in 2330, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6597328 = idf(docFreq=3107, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.035708684 = weight(abstract_txt:term in 2330) [ClassicSimilarity], result of:
        0.035708684 = score(doc=2330,freq=2.0), product of:
          0.06740719 = queryWeight, product of:
            1.3416306 = boost
            4.794713 = idf(docFreq=998, maxDocs=44421)
            0.010478779 = queryNorm
          0.52974594 = fieldWeight in 2330, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.794713 = idf(docFreq=998, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.061623186 = weight(abstract_txt:selection in 2330) [ClassicSimilarity], result of:
        0.061623186 = score(doc=2330,freq=3.0), product of:
          0.08472066 = queryWeight, product of:
            1.5040923 = boost
            5.375318 = idf(docFreq=558, maxDocs=44421)
            0.010478779 = queryNorm
          0.72736907 = fieldWeight in 2330, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.375318 = idf(docFreq=558, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.0136131765 = weight(abstract_txt:from in 2330) [ClassicSimilarity], result of:
        0.0136131765 = score(doc=2330,freq=2.0), product of:
          0.044651903 = queryWeight, product of:
            1.54424 = boost
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.010478779 = queryNorm
          0.30487338 = fieldWeight in 2330, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.044118807 = weight(abstract_txt:users in 2330) [ClassicSimilarity], result of:
        0.044118807 = score(doc=2330,freq=2.0), product of:
          0.11193861 = queryWeight, product of:
            2.9945421 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.010478779 = queryNorm
          0.39413396 = fieldWeight in 2330, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.056546394 = weight(abstract_txt:user in 2330) [ClassicSimilarity], result of:
        0.056546394 = score(doc=2330,freq=2.0), product of:
          0.13904315 = queryWeight, product of:
            3.6048622 = boost
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.010478779 = queryNorm
          0.40668234 = fieldWeight in 2330, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
      0.6216963 = weight(abstract_txt:centred in 2330) [ClassicSimilarity], result of:
        0.6216963 = score(doc=2330,freq=2.0), product of:
          0.7475611 = queryWeight, product of:
            9.477841 = boost
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.010478779 = queryNorm
          0.83163273 = fieldWeight in 2330, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.078125 = fieldNorm(doc=2330)
    0.28 = coord(7/25)
  3. Borlund, P.; Ruthven, I.: Introduction to the special issue on evaluating interactive information retrieval systems (2008) 0.23 
    0.2252984 = sum of:
  0.2252984 = product of:
    0.62582886 = sum of:
      0.02509408 = weight(abstract_txt:questionnaires in 3019) [ClassicSimilarity], result of:
        0.02509408 = score(doc=3019,freq=1.0), product of:
          0.07489802 = queryWeight, product of:
            7.1475906 = idf(docFreq=94, maxDocs=44421)
            0.010478779 = queryNorm
          0.3350433 = fieldWeight in 3019, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.1475906 = idf(docFreq=94, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.00673706 = weight(abstract_txt:different in 3019) [ClassicSimilarity], result of:
        0.00673706 = score(doc=3019,freq=1.0), product of:
          0.039271705 = queryWeight, product of:
            1.0240465 = boost
            3.6597328 = idf(docFreq=3107, maxDocs=44421)
            0.010478779 = queryNorm
          0.17154998 = fieldWeight in 3019, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6597328 = idf(docFreq=3107, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.0057755816 = weight(abstract_txt:from in 3019) [ClassicSimilarity], result of:
        0.0057755816 = score(doc=3019,freq=1.0), product of:
          0.044651903 = queryWeight, product of:
            1.54424 = boost
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.010478779 = queryNorm
          0.12934682 = fieldWeight in 3019, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.008865291 = weight(abstract_txt:based in 3019) [ClassicSimilarity], result of:
        0.008865291 = score(doc=3019,freq=1.0), product of:
          0.05941619 = queryWeight, product of:
            1.7813417 = boost
            3.1830752 = idf(docFreq=5005, maxDocs=44421)
            0.010478779 = queryNorm
          0.14920665 = fieldWeight in 3019, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.1830752 = idf(docFreq=5005, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.026471285 = weight(abstract_txt:users in 3019) [ClassicSimilarity], result of:
        0.026471285 = score(doc=3019,freq=2.0), product of:
          0.11193861 = queryWeight, product of:
            2.9945421 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.010478779 = queryNorm
          0.23648039 = fieldWeight in 3019, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.09266389 = weight(abstract_txt:evaluation in 3019) [ClassicSimilarity], result of:
        0.09266389 = score(doc=3019,freq=9.0), product of:
          0.14709762 = queryWeight, product of:
            3.1336656 = boost
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.010478779 = queryNorm
          0.62994826 = fieldWeight in 3019, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.053644624 = weight(abstract_txt:user in 3019) [ClassicSimilarity], result of:
        0.053644624 = score(doc=3019,freq=5.0), product of:
          0.13904315 = queryWeight, product of:
            3.6048622 = boost
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.010478779 = queryNorm
          0.38581276 = fieldWeight in 3019, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.033559225 = weight(abstract_txt:system in 3019) [ClassicSimilarity], result of:
        0.033559225 = score(doc=3019,freq=2.0), product of:
          0.15009572 = queryWeight, product of:
            4.2468824 = boost
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.010478779 = queryNorm
          0.2235855 = fieldWeight in 3019, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
      0.3730178 = weight(abstract_txt:centred in 3019) [ClassicSimilarity], result of:
        0.3730178 = score(doc=3019,freq=2.0), product of:
          0.7475611 = queryWeight, product of:
            9.477841 = boost
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.010478779 = queryNorm
          0.49897966 = fieldWeight in 3019, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.046875 = fieldNorm(doc=3019)
    0.36 = coord(9/25)
  4. Liu, J.; Liu, C.: Personalization in text information retrieval : a survey (2020) 0.22 
    0.22373396 = sum of:
  0.22373396 = product of:
    0.79904985 = sum of:
      0.00962597 = weight(abstract_txt:from in 761) [ClassicSimilarity], result of:
        0.00962597 = score(doc=761,freq=1.0), product of:
          0.044651903 = queryWeight, product of:
            1.54424 = boost
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.010478779 = queryNorm
          0.21557805 = fieldWeight in 761, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.014775484 = weight(abstract_txt:based in 761) [ClassicSimilarity], result of:
        0.014775484 = score(doc=761,freq=1.0), product of:
          0.05941619 = queryWeight, product of:
            1.7813417 = boost
            3.1830752 = idf(docFreq=5005, maxDocs=44421)
            0.010478779 = queryNorm
          0.24867775 = fieldWeight in 761, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.1830752 = idf(docFreq=5005, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.065440014 = weight(abstract_txt:obtained in 761) [ClassicSimilarity], result of:
        0.065440014 = score(doc=761,freq=1.0), product of:
          0.14558825 = queryWeight, product of:
            2.4148414 = boost
            5.7534328 = idf(docFreq=382, maxDocs=44421)
            0.010478779 = queryNorm
          0.44948694 = fieldWeight in 761, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.7534328 = idf(docFreq=382, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.076416016 = weight(abstract_txt:users in 761) [ClassicSimilarity], result of:
        0.076416016 = score(doc=761,freq=6.0), product of:
          0.11193861 = queryWeight, product of:
            2.9945421 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.010478779 = queryNorm
          0.68266004 = fieldWeight in 761, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.051479936 = weight(abstract_txt:evaluation in 761) [ClassicSimilarity], result of:
        0.051479936 = score(doc=761,freq=1.0), product of:
          0.14709762 = queryWeight, product of:
            3.1336656 = boost
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.010478779 = queryNorm
          0.34997123 = fieldWeight in 761, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.03998434 = weight(abstract_txt:user in 761) [ClassicSimilarity], result of:
        0.03998434 = score(doc=761,freq=1.0), product of:
          0.13904315 = queryWeight, product of:
            3.6048622 = boost
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.010478779 = queryNorm
          0.28756785 = fieldWeight in 761, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
      0.5413281 = weight(abstract_txt:personalization in 761) [ClassicSimilarity], result of:
        0.5413281 = score(doc=761,freq=4.0), product of:
          0.4447685 = queryWeight, product of:
            5.4490004 = boost
            7.7894444 = idf(docFreq=49, maxDocs=44421)
            0.010478779 = queryNorm
          1.2171007 = fieldWeight in 761, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            7.7894444 = idf(docFreq=49, maxDocs=44421)
            0.078125 = fieldNorm(doc=761)
    0.28 = coord(7/25)
  5. Göker, A.; Myrhaug, H.: Evaluation of a mobile information system in context (2008) 0.20 
    0.20467427 = sum of:
  0.20467427 = product of:
    0.73097956 = sum of:
      0.068942755 = weight(abstract_txt:filled in 3022) [ClassicSimilarity], result of:
        0.068942755 = score(doc=3022,freq=1.0), product of:
          0.10451599 = queryWeight, product of:
            1.1812891 = boost
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.010478779 = queryNorm
          0.65963835 = fieldWeight in 3022, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.00962597 = weight(abstract_txt:from in 3022) [ClassicSimilarity], result of:
        0.00962597 = score(doc=3022,freq=1.0), product of:
          0.044651903 = queryWeight, product of:
            1.54424 = boost
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.010478779 = queryNorm
          0.21557805 = fieldWeight in 3022, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.759399 = idf(docFreq=7646, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.03119671 = weight(abstract_txt:users in 3022) [ClassicSimilarity], result of:
        0.03119671 = score(doc=3022,freq=1.0), product of:
          0.11193861 = queryWeight, product of:
            2.9945421 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.010478779 = queryNorm
          0.2786948 = fieldWeight in 3022, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.07280362 = weight(abstract_txt:evaluation in 3022) [ClassicSimilarity], result of:
        0.07280362 = score(doc=3022,freq=2.0), product of:
          0.14709762 = queryWeight, product of:
            3.1336656 = boost
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.010478779 = queryNorm
          0.49493405 = fieldWeight in 3022, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.479632 = idf(docFreq=1368, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.069254905 = weight(abstract_txt:user in 3022) [ClassicSimilarity], result of:
        0.069254905 = score(doc=3022,freq=3.0), product of:
          0.13904315 = queryWeight, product of:
            3.6048622 = boost
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.010478779 = queryNorm
          0.4980821 = fieldWeight in 3022, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.6808684 = idf(docFreq=3042, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.039549932 = weight(abstract_txt:system in 3022) [ClassicSimilarity], result of:
        0.039549932 = score(doc=3022,freq=1.0), product of:
          0.15009572 = queryWeight, product of:
            4.2468824 = boost
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.010478779 = queryNorm
          0.26349807 = fieldWeight in 3022, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.372775 = idf(docFreq=4140, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
      0.43960568 = weight(abstract_txt:centred in 3022) [ClassicSimilarity], result of:
        0.43960568 = score(doc=3022,freq=1.0), product of:
          0.7475611 = queryWeight, product of:
            9.477841 = boost
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.010478779 = queryNorm
          0.58805317 = fieldWeight in 3022, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.5270805 = idf(docFreq=64, maxDocs=44421)
            0.078125 = fieldNorm(doc=3022)
    0.28 = coord(7/25)