Document (#40609)

Author

Ayadi, H.
Torjmen-Khemakhem, M.
Daoud, M.
Huang, J.X.
Jemaa, M.B.

Title

Mining correlations between medically dependent features and image retrieval models for query classification

Source

Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1323-1334

Year

2017

Abstract

The abundance of medical resources has encouraged the development of systems that allow for efficient searches of information in large medical image data sets. State-of-the-art image retrieval models are classified into three categories: content-based (visual) models, textual models, and combined models. Content-based models use visual features to answer image queries, textual image retrieval models use word matching to answer textual queries, and combined image retrieval models, use both textual and visual features to answer queries. Nevertheless, most of previous works in this field have used the same image retrieval model independently of the query type. In this article, we define a list of generic and specific medical query features and exploit them in an association rule mining technique to discover correlations between query features and image retrieval models. Based on these rules, we propose to use an associative classifier (NaiveClass) to find the best suitable retrieval model given a new textual query. We also propose a second associative classifier (SmartClass) to select the most appropriate default class for the query. Experiments are performed on Medical ImageCLEF queries from 2008 to 2012 to evaluate the impact of the proposed query features on the classification performance. The results show that combining our proposed specific and generic query features is effective in query classification.

Content

Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23772/full.

Theme

Data Mining

Field

Medizin

Similar documents (author)

1. Huang, G.W.: Accessing information in an information society (1989) 4.50

   4.503246 = sum of:
     4.503246 = weight(author_txt:huang in 2566) [ClassicSimilarity], result of:
       4.503246 = fieldWeight in 2566, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.205193 = idf(docFreq=88, maxDocs=44083)
         0.625 = fieldNorm(doc=2566)
   

2. Huang, X.: Applying a generic function-based topical relevance typology to structure clinical questions and answers (2013) 4.50

   4.503246 = sum of:
     4.503246 = weight(author_txt:huang in 1531) [ClassicSimilarity], result of:
       4.503246 = fieldWeight in 1531, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.205193 = idf(docFreq=88, maxDocs=44083)
         0.625 = fieldNorm(doc=1531)
   

3. Huang, J. Xiangji => Xiangji Huang, J.: 3.82

   3.8211308 = sum of:
     3.8211308 = weight(author_txt:huang in 235) [ClassicSimilarity], result of:
       3.8211308 = fieldWeight in 235, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         7.205193 = idf(docFreq=88, maxDocs=44083)
         0.375 = fieldNorm(doc=235)
   

4. Huang, M.-H.: Developing an ideal online thesaurus display format (1994) 3.60

   3.6025965 = sum of:
     3.6025965 = weight(author_txt:huang in 4099) [ClassicSimilarity], result of:
       3.6025965 = fieldWeight in 4099, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.205193 = idf(docFreq=88, maxDocs=44083)
         0.5 = fieldNorm(doc=4099)
   

5. Huang, M.-h.: End-users' searching behaviour : changes in search type over time (1996) 3.60

   3.6025965 = sum of:
     3.6025965 = weight(author_txt:huang in 5197) [ClassicSimilarity], result of:
       3.6025965 = fieldWeight in 5197, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         7.205193 = idf(docFreq=88, maxDocs=44083)
         0.5 = fieldNorm(doc=5197)
   

Similar documents (content)

1. Ayadi, H.; Torjmen-Khemakhem, M.; Daoud, M.; Xiangji Huang, J.; Ben Jemaa, M.: MF-Re-Rank : a modality feature-based re-ranking model for medical image retrieval (2018) 0.65

   0.6504272 = sum of:
     0.6504272 = product of:
       1.3550568 = sum of:
         0.02764008 = weight(abstract_txt:model in 5460) [ClassicSimilarity], result of:
           0.02764008 = score(doc=5460,freq=5.0), product of:
             0.05668229 = queryWeight, product of:
               3.9876666 = idf(docFreq=2221, maxDocs=44083)
               0.0142144 = queryNorm
             0.48763168 = fieldWeight in 5460, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.9876666 = idf(docFreq=2221, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.022204133 = weight(abstract_txt:specific in 5460) [ClassicSimilarity], result of:
           0.022204133 = score(doc=5460,freq=2.0), product of:
             0.06647991 = queryWeight, product of:
               1.0829827 = boost
               4.318574 = idf(docFreq=1595, maxDocs=44083)
               0.0142144 = queryNorm
             0.33399767 = fieldWeight in 5460, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.318574 = idf(docFreq=1595, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.019135391 = weight(abstract_txt:proposed in 5460) [ClassicSimilarity], result of:
           0.019135391 = score(doc=5460,freq=1.0), product of:
             0.07585242 = queryWeight, product of:
               1.1568073 = boost
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0142144 = queryNorm
             0.25227135 = fieldWeight in 5460, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.019015409 = weight(abstract_txt:based in 5460) [ClassicSimilarity], result of:
           0.019015409 = score(doc=5460,freq=4.0), product of:
             0.05447017 = queryWeight, product of:
               1.2006083 = boost
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0142144 = queryNorm
             0.34909767 = fieldWeight in 5460, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.026737694 = weight(abstract_txt:propose in 5460) [ClassicSimilarity], result of:
           0.026737694 = score(doc=5460,freq=1.0), product of:
             0.09480411 = queryWeight, product of:
               1.293272 = boost
               5.157138 = idf(docFreq=689, maxDocs=44083)
               0.0142144 = queryNorm
             0.28203097 = fieldWeight in 5460, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.157138 = idf(docFreq=689, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.05190886 = weight(abstract_txt:queries in 5460) [ClassicSimilarity], result of:
           0.05190886 = score(doc=5460,freq=1.0), product of:
             0.18588692 = queryWeight, product of:
               2.5610363 = boost
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0142144 = queryNorm
             0.27924967 = fieldWeight in 5460, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.26456758 = weight(abstract_txt:medical in 5460) [ClassicSimilarity], result of:
           0.26456758 = score(doc=5460,freq=12.0), product of:
             0.24046499 = queryWeight, product of:
               2.912844 = boost
               5.8077254 = idf(docFreq=359, maxDocs=44083)
               0.0142144 = queryNorm
             1.1002333 = fieldWeight in 5460, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               5.8077254 = idf(docFreq=359, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.09052011 = weight(abstract_txt:retrieval in 5460) [ClassicSimilarity], result of:
           0.09052011 = score(doc=5460,freq=10.0), product of:
             0.15063663 = queryWeight, product of:
               3.04983 = boost
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0142144 = queryNorm
             0.60091704 = fieldWeight in 5460, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.103879124 = weight(abstract_txt:textual in 5460) [ClassicSimilarity], result of:
           0.103879124 = score(doc=5460,freq=1.0), product of:
             0.3179875 = queryWeight, product of:
               3.7449958 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             0.32667676 = fieldWeight in 5460, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.12782364 = weight(abstract_txt:features in 5460) [ClassicSimilarity], result of:
           0.12782364 = score(doc=5460,freq=4.0), product of:
             0.25732857 = queryWeight, product of:
               3.9861562 = boost
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0142144 = queryNorm
             0.4967332 = fieldWeight in 5460, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.08794105 = weight(abstract_txt:models in 5460) [ClassicSimilarity], result of:
           0.08794105 = score(doc=5460,freq=1.0), product of:
             0.34615967 = queryWeight, product of:
               5.242287 = boost
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.0142144 = queryNorm
             0.25404766 = fieldWeight in 5460, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.645443 = idf(docFreq=1150, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
         0.5136837 = weight(abstract_txt:image in 5460) [ClassicSimilarity], result of:
           0.5136837 = score(doc=5460,freq=18.0), product of:
             0.4119118 = queryWeight, product of:
               5.391485 = boost
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0142144 = queryNorm
             1.2470721 = fieldWeight in 5460, product of:
               4.2426405 = tf(freq=18.0), with freq of:
                 18.0 = termFreq=18.0
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0546875 = fieldNorm(doc=5460)
       0.48 = coord(12/25)
   

2. Lin, W.-C.; Chang, Y.-C.; Chen, H.-H.: Integrating textual and visual information for cross-language image retrieval : a trans-media dictionary approach (2007) 0.45

   0.45087183 = sum of:
     0.45087183 = product of:
       1.4089745 = sum of:
         0.056817375 = weight(abstract_txt:proposed in 1905) [ClassicSimilarity], result of:
           0.056817375 = score(doc=1905,freq=3.0), product of:
             0.07585242 = queryWeight, product of:
               1.1568073 = boost
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0142144 = queryNorm
             0.74905163 = fieldWeight in 1905, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.0712314 = weight(abstract_txt:combined in 1905) [ClassicSimilarity], result of:
           0.0712314 = score(doc=1905,freq=1.0), product of:
             0.127195 = queryWeight, product of:
               1.4979984 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             0.5600173 = fieldWeight in 1905, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.21671098 = weight(abstract_txt:visual in 1905) [ClassicSimilarity], result of:
           0.21671098 = score(doc=1905,freq=6.0), product of:
             0.16823758 = queryWeight, product of:
               2.110005 = boost
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.0142144 = queryNorm
             1.2881247 = fieldWeight in 1905, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.19898012 = weight(abstract_txt:queries in 1905) [ClassicSimilarity], result of:
           0.19898012 = score(doc=1905,freq=5.0), product of:
             0.18588692 = queryWeight, product of:
               2.5610363 = boost
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0142144 = queryNorm
             1.0704364 = fieldWeight in 1905, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.09814276 = weight(abstract_txt:retrieval in 1905) [ClassicSimilarity], result of:
           0.09814276 = score(doc=1905,freq=4.0), product of:
             0.15063663 = queryWeight, product of:
               3.04983 = boost
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0142144 = queryNorm
             0.6515199 = fieldWeight in 1905, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.39819562 = weight(abstract_txt:textual in 1905) [ClassicSimilarity], result of:
           0.39819562 = score(doc=1905,freq=5.0), product of:
             0.3179875 = queryWeight, product of:
               3.7449958 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             1.2522367 = fieldWeight in 1905, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.16133665 = weight(abstract_txt:query in 1905) [ClassicSimilarity], result of:
           0.16133665 = score(doc=1905,freq=1.0), product of:
             0.3621723 = queryWeight, product of:
               5.362165 = boost
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.0142144 = queryNorm
             0.44546932 = fieldWeight in 1905, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
         0.20755957 = weight(abstract_txt:image in 1905) [ClassicSimilarity], result of:
           0.20755957 = score(doc=1905,freq=1.0), product of:
             0.4119118 = queryWeight, product of:
               5.391485 = boost
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0142144 = queryNorm
             0.50389326 = fieldWeight in 1905, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.09375 = fieldNorm(doc=1905)
       0.32 = coord(8/25)
   

3. Starostenko, O.; Rodríguez-Asomoza, J.; Sénchez-López, S.E.; Chévez-Aragón, J.A.: Shape indexing and retrieval : a hybrid approach using ontological description (2008) 0.41

   0.41001746 = sum of:
     0.41001746 = product of:
       1.1389374 = sum of:
         0.047347814 = weight(abstract_txt:proposed in 319) [ClassicSimilarity], result of:
           0.047347814 = score(doc=319,freq=3.0), product of:
             0.07585242 = queryWeight, product of:
               1.1568073 = boost
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0142144 = queryNorm
             0.6242097 = fieldWeight in 319, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.0135824345 = weight(abstract_txt:based in 319) [ClassicSimilarity], result of:
           0.0135824345 = score(doc=319,freq=1.0), product of:
             0.05447017 = queryWeight, product of:
               1.2006083 = boost
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0142144 = queryNorm
             0.24935547 = fieldWeight in 319, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.07372657 = weight(abstract_txt:visual in 319) [ClassicSimilarity], result of:
           0.07372657 = score(doc=319,freq=1.0), product of:
             0.16823758 = queryWeight, product of:
               2.110005 = boost
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.0142144 = queryNorm
             0.4382289 = fieldWeight in 319, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.07415551 = weight(abstract_txt:queries in 319) [ClassicSimilarity], result of:
           0.07415551 = score(doc=319,freq=1.0), product of:
             0.18588692 = queryWeight, product of:
               2.5610363 = boost
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0142144 = queryNorm
             0.39892808 = fieldWeight in 319, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.07082844 = weight(abstract_txt:retrieval in 319) [ClassicSimilarity], result of:
           0.07082844 = score(doc=319,freq=3.0), product of:
             0.15063663 = queryWeight, product of:
               3.04983 = boost
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0142144 = queryNorm
             0.47019398 = fieldWeight in 319, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.20986754 = weight(abstract_txt:textual in 319) [ClassicSimilarity], result of:
           0.20986754 = score(doc=319,freq=2.0), product of:
             0.3179875 = queryWeight, product of:
               3.7449958 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             0.65998673 = fieldWeight in 319, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.0913026 = weight(abstract_txt:features in 319) [ClassicSimilarity], result of:
           0.0913026 = score(doc=319,freq=1.0), product of:
             0.25732857 = queryWeight, product of:
               3.9861562 = boost
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0142144 = queryNorm
             0.35480943 = fieldWeight in 319, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.1344472 = weight(abstract_txt:query in 319) [ClassicSimilarity], result of:
           0.1344472 = score(doc=319,freq=1.0), product of:
             0.3621723 = queryWeight, product of:
               5.362165 = boost
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.0142144 = queryNorm
             0.37122443 = fieldWeight in 319, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
         0.4236792 = weight(abstract_txt:image in 319) [ClassicSimilarity], result of:
           0.4236792 = score(doc=319,freq=6.0), product of:
             0.4119118 = queryWeight, product of:
               5.391485 = boost
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0142144 = queryNorm
             1.0285678 = fieldWeight in 319, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.078125 = fieldNorm(doc=319)
       0.36 = coord(9/25)
   

4. Wu, Q.; Iyengar, S.S.; Zhu, M.: Web based image retrieval using self-organizing feature map (2001) 0.35

   0.34822395 = sum of:
     0.34822395 = product of:
       0.8705599 = sum of:
         0.014126879 = weight(abstract_txt:model in 931) [ClassicSimilarity], result of:
           0.014126879 = score(doc=931,freq=1.0), product of:
             0.05668229 = queryWeight, product of:
               3.9876666 = idf(docFreq=2221, maxDocs=44083)
               0.0142144 = queryNorm
             0.24922916 = fieldWeight in 931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9876666 = idf(docFreq=2221, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.016336536 = weight(abstract_txt:content in 931) [ClassicSimilarity], result of:
           0.016336536 = score(doc=931,freq=1.0), product of:
             0.062448673 = queryWeight, product of:
               1.0496341 = boost
               4.1855907 = idf(docFreq=1822, maxDocs=44083)
               0.0142144 = queryNorm
             0.26159942 = fieldWeight in 931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1855907 = idf(docFreq=1822, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.030927463 = weight(abstract_txt:proposed in 931) [ClassicSimilarity], result of:
           0.030927463 = score(doc=931,freq=2.0), product of:
             0.07585242 = queryWeight, product of:
               1.1568073 = boost
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0142144 = queryNorm
             0.40773207 = fieldWeight in 931, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.612962 = idf(docFreq=1188, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.018820373 = weight(abstract_txt:based in 931) [ClassicSimilarity], result of:
           0.018820373 = score(doc=931,freq=3.0), product of:
             0.05447017 = queryWeight, product of:
               1.2006083 = boost
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0142144 = queryNorm
             0.34551707 = fieldWeight in 931, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.0474876 = weight(abstract_txt:combined in 931) [ClassicSimilarity], result of:
           0.0474876 = score(doc=931,freq=1.0), product of:
             0.127195 = queryWeight, product of:
               1.4979984 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             0.37334487 = fieldWeight in 931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.05898126 = weight(abstract_txt:visual in 931) [ClassicSimilarity], result of:
           0.05898126 = score(doc=931,freq=1.0), product of:
             0.16823758 = queryWeight, product of:
               2.110005 = boost
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.0142144 = queryNorm
             0.35058314 = fieldWeight in 931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.60933 = idf(docFreq=438, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.08013324 = weight(abstract_txt:retrieval in 931) [ClassicSimilarity], result of:
           0.08013324 = score(doc=931,freq=6.0), product of:
             0.15063663 = queryWeight, product of:
               3.04983 = boost
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0142144 = queryNorm
             0.5319638 = fieldWeight in 931, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.118719004 = weight(abstract_txt:textual in 931) [ClassicSimilarity], result of:
           0.118719004 = score(doc=931,freq=1.0), product of:
             0.3179875 = queryWeight, product of:
               3.7449958 = boost
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0142144 = queryNorm
             0.37334487 = fieldWeight in 931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.973518 = idf(docFreq=304, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.14608416 = weight(abstract_txt:features in 931) [ClassicSimilarity], result of:
           0.14608416 = score(doc=931,freq=4.0), product of:
             0.25732857 = queryWeight, product of:
               3.9861562 = boost
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0142144 = queryNorm
             0.5676951 = fieldWeight in 931, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
         0.33894336 = weight(abstract_txt:image in 931) [ClassicSimilarity], result of:
           0.33894336 = score(doc=931,freq=6.0), product of:
             0.4119118 = queryWeight, product of:
               5.391485 = boost
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0142144 = queryNorm
             0.8228542 = fieldWeight in 931, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0625 = fieldNorm(doc=931)
       0.4 = coord(10/25)
   

5. Jansen, B.J.: Searching for digital images on the web (2008) 0.31

   0.3123122 = sum of:
     0.3123122 = product of:
       0.97597563 = sum of:
         0.016336536 = weight(abstract_txt:content in 2731) [ClassicSimilarity], result of:
           0.016336536 = score(doc=2731,freq=1.0), product of:
             0.062448673 = queryWeight, product of:
               1.0496341 = boost
               4.1855907 = idf(docFreq=1822, maxDocs=44083)
               0.0142144 = queryNorm
             0.26159942 = fieldWeight in 2731, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1855907 = idf(docFreq=1822, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.010865948 = weight(abstract_txt:based in 2731) [ClassicSimilarity], result of:
           0.010865948 = score(doc=2731,freq=1.0), product of:
             0.05447017 = queryWeight, product of:
               1.2006083 = boost
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0142144 = queryNorm
             0.19948438 = fieldWeight in 2731, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.19175 = idf(docFreq=4924, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.030223459 = weight(abstract_txt:classification in 2731) [ClassicSimilarity], result of:
           0.030223459 = score(doc=2731,freq=2.0), product of:
             0.085506625 = queryWeight, product of:
               1.5042562 = boost
               3.9989815 = idf(docFreq=2196, maxDocs=44083)
               0.0142144 = queryNorm
             0.35346335 = fieldWeight in 2731, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9989815 = idf(docFreq=2196, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.16779476 = weight(abstract_txt:queries in 2731) [ClassicSimilarity], result of:
           0.16779476 = score(doc=2731,freq=8.0), product of:
             0.18588692 = queryWeight, product of:
               2.5610363 = boost
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0142144 = queryNorm
             0.90267116 = fieldWeight in 2731, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.1062794 = idf(docFreq=725, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.046264943 = weight(abstract_txt:retrieval in 2731) [ClassicSimilarity], result of:
           0.046264943 = score(doc=2731,freq=2.0), product of:
             0.15063663 = queryWeight, product of:
               3.04983 = boost
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0142144 = queryNorm
             0.30712944 = fieldWeight in 2731, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.474773 = idf(docFreq=3710, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.07304208 = weight(abstract_txt:features in 2731) [ClassicSimilarity], result of:
           0.07304208 = score(doc=2731,freq=1.0), product of:
             0.25732857 = queryWeight, product of:
               3.9861562 = boost
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0142144 = queryNorm
             0.28384754 = fieldWeight in 2731, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5415606 = idf(docFreq=1276, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.15210965 = weight(abstract_txt:query in 2731) [ClassicSimilarity], result of:
           0.15210965 = score(doc=2731,freq=2.0), product of:
             0.3621723 = queryWeight, product of:
               5.362165 = boost
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.0142144 = queryNorm
             0.4199925 = fieldWeight in 2731, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.7516727 = idf(docFreq=1034, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
         0.47933826 = weight(abstract_txt:image in 2731) [ClassicSimilarity], result of:
           0.47933826 = score(doc=2731,freq=12.0), product of:
             0.4119118 = queryWeight, product of:
               5.391485 = boost
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0142144 = queryNorm
             1.1636915 = fieldWeight in 2731, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               5.3748612 = idf(docFreq=554, maxDocs=44083)
               0.0625 = fieldNorm(doc=2731)
       0.32 = coord(8/25)