Bibliometric Analysis Asia-Pacific Research Area ... - JuSER
Bibliometric Analysis Asia-Pacific Research Area ... - JuSER
Bibliometric Analysis Asia-Pacific Research Area ... - JuSER
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Central Library<br />
within South-East <strong>Asia</strong>, we can conclude that there is a high degree of dependency on a<br />
possible research area. The cooperation figures of developed countries, such as Japan and<br />
Australia, also experience a significant increase. As a result, we can speak of increasing<br />
cooperation in South-East <strong>Asia</strong>.<br />
Relationship between publication output and cooperation of South-East <strong>Asia</strong>n countries 2007<br />
100000<br />
100%<br />
75000<br />
75%<br />
number of publications<br />
50000<br />
33.45%<br />
43.71%<br />
50%<br />
share of co-publications<br />
25000<br />
22.24%<br />
16.95%<br />
22.89%<br />
24.25%<br />
25%<br />
7.86% 7.05%<br />
10.39%<br />
8.21%<br />
10.25%<br />
0<br />
0%<br />
publications<br />
share of co-publications<br />
Figure 113: Relationship between publication output and cooperations in South-East <strong>Asia</strong> 2007<br />
The network diagrams in Figures 114 to 117 clearly illustrate increasing networking between the<br />
countries studied for the period 1998 – 2007. Figures 114 and 115 show the development of the<br />
co-published journal articles between 1998 and 2007 in the form of network diagrams. The copublications<br />
are indicated by the lines joining the dots representing the countries. The thicker<br />
the line, the greater the number of co-publications. The joint co-publications are relativised with<br />
respect to the output of the country. Salton’s measure of international collaboration strength (S)<br />
was applied. This measures the strength of networking activities between two countries x and y,<br />
and relativises this strength to the size of the output of the two countries. This value is<br />
calculated by dividing the number of joint co-publications of two countries (C xy ) by the root of the<br />
product of the total publications of country x (C x ) and country y(C y ).<br />
S<br />
xy<br />
=<br />
C<br />
C<br />
x<br />
xy<br />
⋅C<br />
y<br />
The diagrams in Figures 114 and 115 show that networking among the countries has increased<br />
perceptibly between 1998 and 2007. Since the co-publications have been relativised with<br />
respect to the total output of a country, the extreme increase in joint publications cannot be<br />
explained by the general rise in scientific output within these ten years. On the contrary,<br />
cooperation in the form of scientific networking within the research area studied has increased<br />
at a disproportionate rate and the network has become denser.<br />
139