Page 105 - Journal of Library Science in China, Vol.45, 2019
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104   Journal of Library Science in China, Vol.11, 2019



            2  Results


            2.1  Comparative analysis of user platform preferences

            After analyzing sample data crawled above, the metadata to explore user platform preferences
            mainly consists of disciplines, platform types, journals, downloads and citations. The data above
            are statistically analyzed as follows.
               (1) Descriptive statistics
              In perspective of disciplines (as shown in Table 2), average downloads per article on journal
            official websites is greater than CNKI in most disciplines (only “Management Science” is
            excluded), which indicates that users generally prefer open access journal official websites rather
            than pay-for-access information integration platform to obtain required papers. By summarizing
            average download per article on official websites and CNKI, it reveals that “Earth Science” has the
            highest downloads, then “Library, Information and Archival Science”, “Economics”, “Pedagogy”,
            “Biology” and “Management Science”, while “Computer Science” and “Math” are the least.
            In addition, average downloads per article on CNKI of social sciences are higher than natural
            sciences.


            Table 2. Descriptive statistics of usage data in eight disciplines
                    Discipline           Type           Median      Mean       Mean in total
               Library, Information and  Website download  366      894.9         1,389
                  Archival Science    CNKI download      270        494.4
                                     Website download    334        434.1
                Management Science                                                928
                                      CNKI download      362        493.9
                                     Website download    287        761.4
                   Economics                                                      1,339
                                      CNKI download      370.5      577.2

                                     Website download    371        586.1
                    Pedagogy                                                      1,139
                                      CNKI download      312.5      553.2
                                     Website download    369        517.3
                 Computer Science                                                 663
                                      CNKI download       95        146.1
                                     Website download    475        1978.3
                   Earth Science                                                  2,221
                                      CNKI download      175        242.9
                                     Website download    289        359.6
                     Math                                                         434
                                      CNKI download       52         75.2
                                     Website download    494        900.2
                    Biology                                                       1,134
                                      CNKI download      153        233.5
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