Document (#24515)

Author
Zachary, J.
Iyengar, S.S.
Barhen, J.
Title
Content based image retrieval and information theory : a general approach
Source
Journal of the American Society for Information Science and technology. 52(2001) no.10, S.840-852
Year
2001
Abstract
A fundamental aspect of content-based image retrieval (CBIR) is the extraction and the representation of a visual feature that is an effective discriminant between pairs of images. Among the many visual features that have been studied, the distribution of color pixels in an image is the most common visual feature studied. The standard representation of color for content-based indexing in image databases is the color histogram description and representation.Vector-based distance functions are used to compute the similarity between two images as the distance between points in the color histogram space. This paper proposes an alternative real valued representation of color based on the information theoretic concept of entropy. A theoretical presentation of image entropy is accompanied by a practical description of the merits and limitations of image entropy compared to color histograms. Specifically, the L, norm for color histograms is shown to provide an upper bound on the difference between image entropy values. Our initial results suggest that image entropy is a promising approach to image
Form
Bilder
Object
CBIR

Similar documents (content)

  1. Subramanyam Rallabandi, V.P.; Sett, S.K.: Knowledge-based image retrieval system (2008) 0.41
    0.40883058 = sum of:
      0.40883058 = product of:
        1.4601092 = sum of:
          0.060620923 = weight(abstract_txt:images in 279) [ClassicSimilarity], result of:
            0.060620923 = score(doc=279,freq=3.0), product of:
              0.08292793 = queryWeight, product of:
                1.4198952 = boost
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.010811189 = queryNorm
              0.73100734 = fieldWeight in 279, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.024803618 = weight(abstract_txt:content in 279) [ClassicSimilarity], result of:
            0.024803618 = score(doc=279,freq=1.0), product of:
              0.07545708 = queryWeight, product of:
                1.6588286 = boost
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.010811189 = queryNorm
              0.3287116 = fieldWeight in 279, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.026116345 = weight(abstract_txt:based in 279) [ClassicSimilarity], result of:
            0.026116345 = score(doc=279,freq=2.0), product of:
              0.07349162 = queryWeight, product of:
                2.1134636 = boost
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.010811189 = queryNorm
              0.35536495 = fieldWeight in 279, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.059763625 = weight(abstract_txt:visual in 279) [ClassicSimilarity], result of:
            0.059763625 = score(doc=279,freq=1.0), product of:
              0.13561714 = queryWeight, product of:
                2.223867 = boost
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.010811189 = queryNorm
              0.440679 = fieldWeight in 279, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.20190684 = weight(abstract_txt:histogram in 279) [ClassicSimilarity], result of:
            0.20190684 = score(doc=279,freq=1.0), product of:
              0.26674333 = queryWeight, product of:
                2.5465527 = boost
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.010811189 = queryNorm
              0.75693303 = fieldWeight in 279, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.30732766 = weight(abstract_txt:image in 279) [ClassicSimilarity], result of:
            0.30732766 = score(doc=279,freq=4.0), product of:
              0.36709473 = queryWeight, product of:
                6.3372555 = boost
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.010811189 = queryNorm
              0.83718896 = fieldWeight in 279, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
          0.77957016 = weight(abstract_txt:color in 279) [ClassicSimilarity], result of:
            0.77957016 = score(doc=279,freq=4.0), product of:
              0.62791234 = queryWeight, product of:
                7.3095293 = boost
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.010811189 = queryNorm
              1.2415271 = fieldWeight in 279, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.078125 = fieldNorm(doc=279)
        0.28 = coord(7/25)
    
  2. Mehtre, B.M.; Kankanhalli, M.S.; Lee, W.F.: Content-based image retrieval using a composite color-shape approach (1998) 0.38
    0.37967443 = sum of:
      0.37967443 = product of:
        1.1864827 = sum of:
          0.049974285 = weight(abstract_txt:compute in 2622) [ClassicSimilarity], result of:
            0.049974285 = score(doc=2622,freq=1.0), product of:
              0.08346043 = queryWeight, product of:
                1.0072359 = boost
                7.664361 = idf(docFreq=52, maxDocs=41550)
                0.010811189 = queryNorm
              0.5987782 = fieldWeight in 2622, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.664361 = idf(docFreq=52, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.07826127 = weight(abstract_txt:images in 2622) [ClassicSimilarity], result of:
            0.07826127 = score(doc=2622,freq=5.0), product of:
              0.08292793 = queryWeight, product of:
                1.4198952 = boost
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.010811189 = queryNorm
              0.94372636 = fieldWeight in 2622, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.046949197 = weight(abstract_txt:feature in 2622) [ClassicSimilarity], result of:
            0.046949197 = score(doc=2622,freq=1.0), product of:
              0.10086604 = queryWeight, product of:
                1.5659517 = boost
                5.957899 = idf(docFreq=291, maxDocs=41550)
                0.010811189 = queryNorm
              0.46546087 = fieldWeight in 2622, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.957899 = idf(docFreq=291, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.024803618 = weight(abstract_txt:content in 2622) [ClassicSimilarity], result of:
            0.024803618 = score(doc=2622,freq=1.0), product of:
              0.07545708 = queryWeight, product of:
                1.6588286 = boost
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.010811189 = queryNorm
              0.3287116 = fieldWeight in 2622, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.019096922 = weight(abstract_txt:between in 2622) [ClassicSimilarity], result of:
            0.019096922 = score(doc=2622,freq=1.0), product of:
              0.06976621 = queryWeight, product of:
                1.8418041 = boost
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.010811189 = queryNorm
              0.2737274 = fieldWeight in 2622, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.026116345 = weight(abstract_txt:based in 2622) [ClassicSimilarity], result of:
            0.026116345 = score(doc=2622,freq=2.0), product of:
              0.07349162 = queryWeight, product of:
                2.1134636 = boost
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.010811189 = queryNorm
              0.35536495 = fieldWeight in 2622, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.26615354 = weight(abstract_txt:image in 2622) [ClassicSimilarity], result of:
            0.26615354 = score(doc=2622,freq=3.0), product of:
              0.36709473 = queryWeight, product of:
                6.3372555 = boost
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.010811189 = queryNorm
              0.72502685 = fieldWeight in 2622, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
          0.67512757 = weight(abstract_txt:color in 2622) [ClassicSimilarity], result of:
            0.67512757 = score(doc=2622,freq=3.0), product of:
              0.62791234 = queryWeight, product of:
                7.3095293 = boost
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.010811189 = queryNorm
              1.075194 = fieldWeight in 2622, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.078125 = fieldNorm(doc=2622)
        0.32 = coord(8/25)
    
  3. Park, G.; Baek, Y.; Lee, H.-K.: Re-ranking algorithm using post-retrieval clustering for content-based image retrieval (2005) 0.33
    0.32895273 = sum of:
      0.32895273 = product of:
        0.91375756 = sum of:
          0.08740342 = weight(abstract_txt:cbir in 3005) [ClassicSimilarity], result of:
            0.08740342 = score(doc=3005,freq=2.0), product of:
              0.11158312 = queryWeight, product of:
                1.1646358 = boost
                8.862064 = idf(docFreq=15, maxDocs=41550)
                0.010811189 = queryNorm
              0.7833032 = fieldWeight in 3005, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.862064 = idf(docFreq=15, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.048496738 = weight(abstract_txt:images in 3005) [ClassicSimilarity], result of:
            0.048496738 = score(doc=3005,freq=3.0), product of:
              0.08292793 = queryWeight, product of:
                1.4198952 = boost
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.010811189 = queryNorm
              0.58480585 = fieldWeight in 3005, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.019842895 = weight(abstract_txt:content in 3005) [ClassicSimilarity], result of:
            0.019842895 = score(doc=3005,freq=1.0), product of:
              0.07545708 = queryWeight, product of:
                1.6588286 = boost
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.010811189 = queryNorm
              0.2629693 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.048225664 = weight(abstract_txt:distance in 3005) [ClassicSimilarity], result of:
            0.048225664 = score(doc=3005,freq=1.0), product of:
              0.11915667 = queryWeight, product of:
                1.7020216 = boost
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.010811189 = queryNorm
              0.40472484 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.014773636 = weight(abstract_txt:based in 3005) [ClassicSimilarity], result of:
            0.014773636 = score(doc=3005,freq=1.0), product of:
              0.07349162 = queryWeight, product of:
                2.1134636 = boost
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.010811189 = queryNorm
              0.20102477 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.0478109 = weight(abstract_txt:visual in 3005) [ClassicSimilarity], result of:
            0.0478109 = score(doc=3005,freq=1.0), product of:
              0.13561714 = queryWeight, product of:
                2.223867 = boost
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.010811189 = queryNorm
              0.3525432 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.16152547 = weight(abstract_txt:histogram in 3005) [ClassicSimilarity], result of:
            0.16152547 = score(doc=3005,freq=1.0), product of:
              0.26674333 = queryWeight, product of:
                2.5465527 = boost
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.010811189 = queryNorm
              0.6055464 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.17385076 = weight(abstract_txt:image in 3005) [ClassicSimilarity], result of:
            0.17385076 = score(doc=3005,freq=2.0), product of:
              0.36709473 = queryWeight, product of:
                6.3372555 = boost
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.010811189 = queryNorm
              0.47358558 = fieldWeight in 3005, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
          0.31182808 = weight(abstract_txt:color in 3005) [ClassicSimilarity], result of:
            0.31182808 = score(doc=3005,freq=1.0), product of:
              0.62791234 = queryWeight, product of:
                7.3095293 = boost
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.010811189 = queryNorm
              0.49661082 = fieldWeight in 3005, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.0625 = fieldNorm(doc=3005)
        0.36 = coord(9/25)
    
  4. Corridoni, J.M.; Bimbo, A. del; Vicario, E.: Image retrieval by color semantics with incomplete knowledge (1998) 0.30
    0.3000579 = sum of:
      0.3000579 = product of:
        0.8334941 = sum of:
          0.028757712 = weight(abstract_txt:description in 2072) [ClassicSimilarity], result of:
            0.028757712 = score(doc=2072,freq=2.0), product of:
              0.06700272 = queryWeight, product of:
                1.276298 = boost
                4.855868 = idf(docFreq=878, maxDocs=41550)
                0.010811189 = queryNorm
              0.42920214 = fieldWeight in 2072, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.855868 = idf(docFreq=878, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.027999604 = weight(abstract_txt:images in 2072) [ClassicSimilarity], result of:
            0.027999604 = score(doc=2072,freq=1.0), product of:
              0.08292793 = queryWeight, product of:
                1.4198952 = boost
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.010811189 = queryNorm
              0.3376378 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.019842895 = weight(abstract_txt:content in 2072) [ClassicSimilarity], result of:
            0.019842895 = score(doc=2072,freq=1.0), product of:
              0.07545708 = queryWeight, product of:
                1.6588286 = boost
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.010811189 = queryNorm
              0.2629693 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2075086 = idf(docFreq=1680, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.048225664 = weight(abstract_txt:distance in 2072) [ClassicSimilarity], result of:
            0.048225664 = score(doc=2072,freq=1.0), product of:
              0.11915667 = queryWeight, product of:
                1.7020216 = boost
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.010811189 = queryNorm
              0.40472484 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.0152775375 = weight(abstract_txt:between in 2072) [ClassicSimilarity], result of:
            0.0152775375 = score(doc=2072,freq=1.0), product of:
              0.06976621 = queryWeight, product of:
                1.8418041 = boost
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.010811189 = queryNorm
              0.2189819 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.032633338 = weight(abstract_txt:representation in 2072) [ClassicSimilarity], result of:
            0.032633338 = score(doc=2072,freq=1.0), product of:
              0.105132654 = queryWeight, product of:
                1.9580344 = boost
                4.9664245 = idf(docFreq=786, maxDocs=41550)
                0.010811189 = queryNorm
              0.31040153 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9664245 = idf(docFreq=786, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.0478109 = weight(abstract_txt:visual in 2072) [ClassicSimilarity], result of:
            0.0478109 = score(doc=2072,freq=1.0), product of:
              0.13561714 = queryWeight, product of:
                2.223867 = boost
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.010811189 = queryNorm
              0.3525432 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6406913 = idf(docFreq=400, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.30111837 = weight(abstract_txt:image in 2072) [ClassicSimilarity], result of:
            0.30111837 = score(doc=2072,freq=6.0), product of:
              0.36709473 = queryWeight, product of:
                6.3372555 = boost
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.010811189 = queryNorm
              0.82027435 = fieldWeight in 2072, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
          0.31182808 = weight(abstract_txt:color in 2072) [ClassicSimilarity], result of:
            0.31182808 = score(doc=2072,freq=1.0), product of:
              0.62791234 = queryWeight, product of:
                7.3095293 = boost
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.010811189 = queryNorm
              0.49661082 = fieldWeight in 2072, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.945773 = idf(docFreq=39, maxDocs=41550)
                0.0625 = fieldNorm(doc=2072)
        0.36 = coord(9/25)
    
  5. Kim, C.-R.; Chung, C.-W.: XMage: An image retrieval method based on partial similarity (2006) 0.27
    0.27014184 = sum of:
      0.27014184 = product of:
        0.8441933 = sum of:
          0.039979428 = weight(abstract_txt:compute in 2973) [ClassicSimilarity], result of:
            0.039979428 = score(doc=2973,freq=1.0), product of:
              0.08346043 = queryWeight, product of:
                1.0072359 = boost
                7.664361 = idf(docFreq=52, maxDocs=41550)
                0.010811189 = queryNorm
              0.47902256 = fieldWeight in 2973, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.664361 = idf(docFreq=52, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.07407999 = weight(abstract_txt:images in 2973) [ClassicSimilarity], result of:
            0.07407999 = score(doc=2973,freq=7.0), product of:
              0.08292793 = queryWeight, product of:
                1.4198952 = boost
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.010811189 = queryNorm
              0.89330566 = fieldWeight in 2973, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.402205 = idf(docFreq=508, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.048225664 = weight(abstract_txt:distance in 2973) [ClassicSimilarity], result of:
            0.048225664 = score(doc=2973,freq=1.0), product of:
              0.11915667 = queryWeight, product of:
                1.7020216 = boost
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.010811189 = queryNorm
              0.40472484 = fieldWeight in 2973, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.4755974 = idf(docFreq=173, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.02646147 = weight(abstract_txt:between in 2973) [ClassicSimilarity], result of:
            0.02646147 = score(doc=2973,freq=3.0), product of:
              0.06976621 = queryWeight, product of:
                1.8418041 = boost
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.010811189 = queryNorm
              0.37928778 = fieldWeight in 2973, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.5037105 = idf(docFreq=3397, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.032633338 = weight(abstract_txt:representation in 2973) [ClassicSimilarity], result of:
            0.032633338 = score(doc=2973,freq=1.0), product of:
              0.105132654 = queryWeight, product of:
                1.9580344 = boost
                4.9664245 = idf(docFreq=786, maxDocs=41550)
                0.010811189 = queryNorm
              0.31040153 = fieldWeight in 2973, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9664245 = idf(docFreq=786, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.025588688 = weight(abstract_txt:based in 2973) [ClassicSimilarity], result of:
            0.025588688 = score(doc=2973,freq=3.0), product of:
              0.07349162 = queryWeight, product of:
                2.1134636 = boost
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.010811189 = queryNorm
              0.34818512 = fieldWeight in 2973, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.2163963 = idf(docFreq=4528, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.22843151 = weight(abstract_txt:histogram in 2973) [ClassicSimilarity], result of:
            0.22843151 = score(doc=2973,freq=2.0), product of:
              0.26674333 = queryWeight, product of:
                2.5465527 = boost
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.010811189 = queryNorm
              0.85637194 = fieldWeight in 2973, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.688743 = idf(docFreq=6, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
          0.3687932 = weight(abstract_txt:image in 2973) [ClassicSimilarity], result of:
            0.3687932 = score(doc=2973,freq=9.0), product of:
              0.36709473 = queryWeight, product of:
                6.3372555 = boost
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.010811189 = queryNorm
              1.0046268 = fieldWeight in 2973, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                5.3580093 = idf(docFreq=531, maxDocs=41550)
                0.0625 = fieldNorm(doc=2973)
        0.32 = coord(8/25)