Document (#44123)

Author

Oh, D.-G.

Title

Comparative analysis of national classification systems : cases of Korean Decimal Classification (KDC) and Nippon Decimal Classification (NDC)

Source

Knowledge organization. 50(2023) no.2, S.83 - 98

Year

2023

Abstract

The Korean Decimal Classification (KDC) and Nippon Decimal Classification (NDC) are national classification systems of Korea and Japan. They have been used widely in many libraries of each country and maintained successfully by each national library associations of Korean Library Association (KLA) and Japan Library Association (JLA). This study compares the general characteristics of these two national classification systems using their latest editions of KDC 6 and NDC 10. After reviewing the former research, their origins, general history and development, and usages were briefly compared. Various aspects including classification by discipline, not by subjects, decimal expansion of the classes using pure notations of Arabic, hierarchical structure, and mnemonics quality are checked for both systems. Results of the comparative analyses of major auxiliary tables, main classes and 100 divisions of schedules of two systems are suggested one by one with special regards to Dewey Decimal Classification (DDC). The analyses focus on the differences between both systems as well as the characteristics which reflect the local situations of both countries. It suggests some ideas for future developments and research based on the results of their strengths and weaknesses.

Content

Vgl.: https://www.nomos-elibrary.de/10.5771/0943-7444-2023-2/ko-knowledge-organization-jahrgang-50-2023-heft-2.

Object

KDC
NDC

Location

Korea
Japan

Similar documents (content)

1. Oh, D.G.: Revision of the national classification system through cooperative efforts : a case of Korean Decimal Classification 6th Edition (KDC 6) (2018) 0.52

   0.5173599 = sum of:
     0.5173599 = product of:
       1.2933998 = sum of:
         0.11088101 = weight(abstract_txt:korea in 4646) [ClassicSimilarity], result of:
           0.11088101 = score(doc=4646,freq=1.0), product of:
             0.14257172 = queryWeight, product of:
               1.0543252 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.0163007 = queryNorm
             0.7777209 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.0316417 = weight(abstract_txt:general in 4646) [ClassicSimilarity], result of:
           0.0316417 = score(doc=4646,freq=1.0), product of:
             0.077859536 = queryWeight, product of:
               1.1018661 = boost
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.0163007 = queryNorm
             0.40639466 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.032659736 = weight(abstract_txt:library in 4646) [ClassicSimilarity], result of:
           0.032659736 = score(doc=4646,freq=3.0), product of:
             0.06311565 = queryWeight, product of:
               1.2150302 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.0163007 = queryNorm
             0.5174586 = fieldWeight in 4646, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.045147058 = weight(abstract_txt:characteristics in 4646) [ClassicSimilarity], result of:
           0.045147058 = score(doc=4646,freq=1.0), product of:
             0.098679036 = queryWeight, product of:
               1.2404674 = boost
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.0163007 = queryNorm
             0.45751417 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.069092214 = weight(abstract_txt:association in 4646) [ClassicSimilarity], result of:
           0.069092214 = score(doc=4646,freq=1.0), product of:
             0.13104627 = queryWeight, product of:
               1.4295036 = boost
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.0163007 = queryNorm
             0.52723527 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.10689583 = weight(abstract_txt:national in 4646) [ClassicSimilarity], result of:
           0.10689583 = score(doc=4646,freq=2.0), product of:
             0.17529887 = queryWeight, product of:
               2.3381774 = boost
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.0163007 = queryNorm
             0.6097919 = fieldWeight in 4646, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.04628406 = weight(abstract_txt:systems in 4646) [ClassicSimilarity], result of:
           0.04628406 = score(doc=4646,freq=1.0), product of:
             0.14469938 = queryWeight, product of:
               2.6017578 = boost
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.0163007 = queryNorm
             0.3198636 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.39811048 = weight(abstract_txt:korean in 4646) [ClassicSimilarity], result of:
           0.39811048 = score(doc=4646,freq=2.0), product of:
             0.38267323 = queryWeight, product of:
               2.9918 = boost
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.0163007 = queryNorm
             1.0403405 = fieldWeight in 4646, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.1926189 = weight(abstract_txt:classification in 4646) [ClassicSimilarity], result of:
           0.1926189 = score(doc=4646,freq=3.0), product of:
             0.29714492 = queryWeight, product of:
               4.566288 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0163007 = queryNorm
             0.6482322 = fieldWeight in 4646, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
         0.26006883 = weight(abstract_txt:decimal in 4646) [ClassicSimilarity], result of:
           0.26006883 = score(doc=4646,freq=1.0), product of:
             0.45733863 = queryWeight, product of:
               4.625434 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0163007 = queryNorm
             0.56865704 = fieldWeight in 4646, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.09375 = fieldNorm(doc=4646)
       0.4 = coord(10/25)
   

2. Oh, D.-G.: Developing and maintaining a national classification system : experience from Korean Decimal Classification (2012) 0.50

   0.49892533 = sum of:
     0.49892533 = product of:
       1.3859036 = sum of:
         0.15680942 = weight(abstract_txt:korea in 80) [ClassicSimilarity], result of:
           0.15680942 = score(doc=80,freq=2.0), product of:
             0.14257172 = queryWeight, product of:
               1.0543252 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.0163007 = queryNorm
             1.0998634 = fieldWeight in 80, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.0316417 = weight(abstract_txt:general in 80) [ClassicSimilarity], result of:
           0.0316417 = score(doc=80,freq=1.0), product of:
             0.077859536 = queryWeight, product of:
               1.1018661 = boost
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.0163007 = queryNorm
             0.40639466 = fieldWeight in 80, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.018856108 = weight(abstract_txt:library in 80) [ClassicSimilarity], result of:
           0.018856108 = score(doc=80,freq=1.0), product of:
             0.06311565 = queryWeight, product of:
               1.2150302 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.0163007 = queryNorm
             0.29875487 = fieldWeight in 80, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.06384758 = weight(abstract_txt:characteristics in 80) [ClassicSimilarity], result of:
           0.06384758 = score(doc=80,freq=2.0), product of:
             0.098679036 = queryWeight, product of:
               1.2404674 = boost
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.0163007 = queryNorm
             0.6470227 = fieldWeight in 80, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.069092214 = weight(abstract_txt:association in 80) [ClassicSimilarity], result of:
           0.069092214 = score(doc=80,freq=1.0), product of:
             0.13104627 = queryWeight, product of:
               1.4295036 = boost
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.0163007 = queryNorm
             0.52723527 = fieldWeight in 80, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.075586766 = weight(abstract_txt:national in 80) [ClassicSimilarity], result of:
           0.075586766 = score(doc=80,freq=1.0), product of:
             0.17529887 = queryWeight, product of:
               2.3381774 = boost
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.0163007 = queryNorm
             0.431188 = fieldWeight in 80, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.4875838 = weight(abstract_txt:korean in 80) [ClassicSimilarity], result of:
           0.4875838 = score(doc=80,freq=3.0), product of:
             0.38267323 = queryWeight, product of:
               2.9918 = boost
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.0163007 = queryNorm
             1.2741518 = fieldWeight in 80, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.22241716 = weight(abstract_txt:classification in 80) [ClassicSimilarity], result of:
           0.22241716 = score(doc=80,freq=4.0), product of:
             0.29714492 = queryWeight, product of:
               4.566288 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0163007 = queryNorm
             0.7485141 = fieldWeight in 80, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
         0.26006883 = weight(abstract_txt:decimal in 80) [ClassicSimilarity], result of:
           0.26006883 = score(doc=80,freq=1.0), product of:
             0.45733863 = queryWeight, product of:
               4.625434 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0163007 = queryNorm
             0.56865704 = fieldWeight in 80, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.09375 = fieldNorm(doc=80)
       0.36 = coord(9/25)
   

3. Oh, D.-G.: Korean Decimal Classification (KDC) : its history, development, characteristics, and future prospect (2021) 0.39

   0.3936863 = sum of:
     0.3936863 = product of:
       1.2302697 = sum of:
         0.054805033 = weight(abstract_txt:general in 5756) [ClassicSimilarity], result of:
           0.054805033 = score(doc=5756,freq=3.0), product of:
             0.077859536 = queryWeight, product of:
               1.1018661 = boost
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.0163007 = queryNorm
             0.7038962 = fieldWeight in 5756, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3348765 = idf(docFreq=1574, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.026666561 = weight(abstract_txt:library in 5756) [ClassicSimilarity], result of:
           0.026666561 = score(doc=5756,freq=2.0), product of:
             0.06311565 = queryWeight, product of:
               1.2150302 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.0163007 = queryNorm
             0.42250317 = fieldWeight in 5756, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.06384758 = weight(abstract_txt:characteristics in 5756) [ClassicSimilarity], result of:
           0.06384758 = score(doc=5756,freq=2.0), product of:
             0.098679036 = queryWeight, product of:
               1.2404674 = boost
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.0163007 = queryNorm
             0.6470227 = fieldWeight in 5756, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.8801513 = idf(docFreq=912, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.069092214 = weight(abstract_txt:association in 5756) [ClassicSimilarity], result of:
           0.069092214 = score(doc=5756,freq=1.0), product of:
             0.13104627 = queryWeight, product of:
               1.4295036 = boost
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.0163007 = queryNorm
             0.52723527 = fieldWeight in 5756, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6238427 = idf(docFreq=433, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.075586766 = weight(abstract_txt:national in 5756) [ClassicSimilarity], result of:
           0.075586766 = score(doc=5756,freq=1.0), product of:
             0.17529887 = queryWeight, product of:
               2.3381774 = boost
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.0163007 = queryNorm
             0.431188 = fieldWeight in 5756, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.4875838 = weight(abstract_txt:korean in 5756) [ClassicSimilarity], result of:
           0.4875838 = score(doc=5756,freq=3.0), product of:
             0.38267323 = queryWeight, product of:
               2.9918 = boost
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.0163007 = queryNorm
             1.2741518 = fieldWeight in 5756, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.1926189 = weight(abstract_txt:classification in 5756) [ClassicSimilarity], result of:
           0.1926189 = score(doc=5756,freq=3.0), product of:
             0.29714492 = queryWeight, product of:
               4.566288 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0163007 = queryNorm
             0.6482322 = fieldWeight in 5756, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
         0.26006883 = weight(abstract_txt:decimal in 5756) [ClassicSimilarity], result of:
           0.26006883 = score(doc=5756,freq=1.0), product of:
             0.45733863 = queryWeight, product of:
               4.625434 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0163007 = queryNorm
             0.56865704 = fieldWeight in 5756, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.09375 = fieldNorm(doc=5756)
       0.32 = coord(8/25)
   

4. Pestana, O.: Alignment in medical sciences : towards improvement of UDC (2015) 0.35

   0.35117787 = sum of:
     0.35117787 = product of:
       0.87794465 = sum of:
         0.111498006 = weight(abstract_txt:notations in 2298) [ClassicSimilarity], result of:
           0.111498006 = score(doc=2298,freq=2.0), product of:
             0.12825792 = queryWeight, product of:
               7.8682456 = idf(docFreq=45, maxDocs=44218)
               0.0163007 = queryNorm
             0.86932653 = fieldWeight in 2298, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.8682456 = idf(docFreq=45, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.0959664 = weight(abstract_txt:auxiliary in 2298) [ClassicSimilarity], result of:
           0.0959664 = score(doc=2298,freq=1.0), product of:
             0.14621623 = queryWeight, product of:
               1.0677159 = boost
               8.401051 = idf(docFreq=26, maxDocs=44218)
               0.0163007 = queryNorm
             0.6563321 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.401051 = idf(docFreq=26, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.015713423 = weight(abstract_txt:library in 2298) [ClassicSimilarity], result of:
           0.015713423 = score(doc=2298,freq=1.0), product of:
             0.06311565 = queryWeight, product of:
               1.2150302 = boost
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.0163007 = queryNorm
             0.2489624 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1867187 = idf(docFreq=4964, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.060277615 = weight(abstract_txt:analyses in 2298) [ClassicSimilarity], result of:
           0.060277615 = score(doc=2298,freq=1.0), product of:
             0.1351129 = queryWeight, product of:
               1.4515142 = boost
               5.7104354 = idf(docFreq=397, maxDocs=44218)
               0.0163007 = queryNorm
             0.44612777 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7104354 = idf(docFreq=397, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.026887307 = weight(abstract_txt:both in 2298) [ClassicSimilarity], result of:
           0.026887307 = score(doc=2298,freq=1.0), product of:
             0.09029313 = queryWeight, product of:
               1.4532686 = boost
               3.811558 = idf(docFreq=2657, maxDocs=44218)
               0.0163007 = queryNorm
             0.29777798 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.811558 = idf(docFreq=2657, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.063971214 = weight(abstract_txt:classes in 2298) [ClassicSimilarity], result of:
           0.063971214 = score(doc=2298,freq=1.0), product of:
             0.1405775 = queryWeight, product of:
               1.4805764 = boost
               5.8247695 = idf(docFreq=354, maxDocs=44218)
               0.0163007 = queryNorm
             0.45506012 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8247695 = idf(docFreq=354, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.062988974 = weight(abstract_txt:national in 2298) [ClassicSimilarity], result of:
           0.062988974 = score(doc=2298,freq=1.0), product of:
             0.17529887 = queryWeight, product of:
               2.3381774 = boost
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.0163007 = queryNorm
             0.35932332 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5993385 = idf(docFreq=1208, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.03857005 = weight(abstract_txt:systems in 2298) [ClassicSimilarity], result of:
           0.03857005 = score(doc=2298,freq=1.0), product of:
             0.14469938 = queryWeight, product of:
               2.6017578 = boost
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.0163007 = queryNorm
             0.26655298 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.18534765 = weight(abstract_txt:classification in 2298) [ClassicSimilarity], result of:
           0.18534765 = score(doc=2298,freq=4.0), product of:
             0.29714492 = queryWeight, product of:
               4.566288 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0163007 = queryNorm
             0.6237618 = fieldWeight in 2298, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
         0.21672404 = weight(abstract_txt:decimal in 2298) [ClassicSimilarity], result of:
           0.21672404 = score(doc=2298,freq=1.0), product of:
             0.45733863 = queryWeight, product of:
               4.625434 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0163007 = queryNorm
             0.4738809 = fieldWeight in 2298, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.078125 = fieldNorm(doc=2298)
       0.4 = coord(10/25)
   

5. Choi, I.: Visualizations of cross-cultural bibliographic classification : comparative studies of the Korean Decimal Classification and the Dewey Decimal Classification (2017) 0.24

   0.24073471 = sum of:
     0.24073471 = product of:
       0.752296 = sum of:
         0.018093899 = weight(abstract_txt:each in 3869) [ClassicSimilarity], result of:
           0.018093899 = score(doc=3869,freq=1.0), product of:
             0.07028903 = queryWeight, product of:
               1.0469277 = boost
               4.118742 = idf(docFreq=1954, maxDocs=44218)
               0.0163007 = queryNorm
             0.25742137 = fieldWeight in 3869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.118742 = idf(docFreq=1954, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.017326048 = weight(abstract_txt:their in 3869) [ClassicSimilarity], result of:
           0.017326048 = score(doc=3869,freq=2.0), product of:
             0.062042058 = queryWeight, product of:
               1.2046521 = boost
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.0163007 = queryNorm
             0.27926293 = fieldWeight in 3869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1594994 = idf(docFreq=5101, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.021509845 = weight(abstract_txt:both in 3869) [ClassicSimilarity], result of:
           0.021509845 = score(doc=3869,freq=1.0), product of:
             0.09029313 = queryWeight, product of:
               1.4532686 = boost
               3.811558 = idf(docFreq=2657, maxDocs=44218)
               0.0163007 = queryNorm
             0.23822238 = fieldWeight in 3869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.811558 = idf(docFreq=2657, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.07237516 = weight(abstract_txt:classes in 3869) [ClassicSimilarity], result of:
           0.07237516 = score(doc=3869,freq=2.0), product of:
             0.1405775 = queryWeight, product of:
               1.4805764 = boost
               5.8247695 = idf(docFreq=354, maxDocs=44218)
               0.0163007 = queryNorm
             0.51484174 = fieldWeight in 3869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.8247695 = idf(docFreq=354, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.061712086 = weight(abstract_txt:systems in 3869) [ClassicSimilarity], result of:
           0.061712086 = score(doc=3869,freq=4.0), product of:
             0.14469938 = queryWeight, product of:
               2.6017578 = boost
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.0163007 = queryNorm
             0.4264848 = fieldWeight in 3869, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4118783 = idf(docFreq=3963, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.18767108 = weight(abstract_txt:korean in 3869) [ClassicSimilarity], result of:
           0.18767108 = score(doc=3869,freq=1.0), product of:
             0.38267323 = queryWeight, product of:
               2.9918 = boost
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.0163007 = queryNorm
             0.49042124 = fieldWeight in 3869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.84674 = idf(docFreq=46, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.1284126 = weight(abstract_txt:classification in 3869) [ClassicSimilarity], result of:
           0.1284126 = score(doc=3869,freq=3.0), product of:
             0.29714492 = queryWeight, product of:
               4.566288 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0163007 = queryNorm
             0.4321548 = fieldWeight in 3869, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
         0.24519525 = weight(abstract_txt:decimal in 3869) [ClassicSimilarity], result of:
           0.24519525 = score(doc=3869,freq=2.0), product of:
             0.45733863 = queryWeight, product of:
               4.625434 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0163007 = queryNorm
             0.536135 = fieldWeight in 3869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0625 = fieldNorm(doc=3869)
       0.32 = coord(8/25)