Nodes (entities) are the keywords of the articles, edges (links) are the co-occurrences of pairs of keywords, and the link thickness denotes the number of times the keywords co-occur in the pool of articles.</p
Number of articles, number of keywords, and number of co-occurrences over the four time windows.</p
<p>The size of nodes indicates the keywords centrality, and the thickness of the lines indicates the...
Note: A threshold of 4 was applied for these 132 highly cited articles, which resulted in a total of...
Nodes are the keywords; edges are the co-occurrences of the pairs of keywords.</p
Note: A threshold of 3 was applied for these 132 highly cited articles, which resulted in a total of...
<p>(A) Keyword co-occurrence network containing only nodes with degree ≥ 10. Nodes represent keyword...
AbstractKeyword networks, formed from keywords occurring in scholarly articles provide a useful mech...
<p>(A) shows the network of co-occurrences with 3994 nodes (threshold≥ 5). (B) shows the reduction o...
Systematic reviews of scientific literature are important for mapping the existing state of research...
<p>The size of nodes indicates the keywords centrality, and the thickness of the lines indicates the...
AbstractKeyword networks, formed from keywords occurring in scholarly articles provide a useful mech...
Top 5 keywords that have the highest connection density to the neighbor keywords, as calculated by t...
<p>(a) Average weight vs. endpoint degree and (b) average weighted nearest neighbor degree vs. node ...
<p>Colors and symbols are similar to <a href="http://www.plosone.org/article/info:doi/10.1371/journa...
<p>Monthly overlapping links of the co-occurrence and CDS networks, for and . Ten most significant ...
Number of articles, number of keywords, and number of co-occurrences over the four time windows.</p
<p>The size of nodes indicates the keywords centrality, and the thickness of the lines indicates the...
Note: A threshold of 4 was applied for these 132 highly cited articles, which resulted in a total of...
Nodes are the keywords; edges are the co-occurrences of the pairs of keywords.</p
Note: A threshold of 3 was applied for these 132 highly cited articles, which resulted in a total of...
<p>(A) Keyword co-occurrence network containing only nodes with degree ≥ 10. Nodes represent keyword...
AbstractKeyword networks, formed from keywords occurring in scholarly articles provide a useful mech...
<p>(A) shows the network of co-occurrences with 3994 nodes (threshold≥ 5). (B) shows the reduction o...
Systematic reviews of scientific literature are important for mapping the existing state of research...
<p>The size of nodes indicates the keywords centrality, and the thickness of the lines indicates the...
AbstractKeyword networks, formed from keywords occurring in scholarly articles provide a useful mech...
Top 5 keywords that have the highest connection density to the neighbor keywords, as calculated by t...
<p>(a) Average weight vs. endpoint degree and (b) average weighted nearest neighbor degree vs. node ...
<p>Colors and symbols are similar to <a href="http://www.plosone.org/article/info:doi/10.1371/journa...
<p>Monthly overlapping links of the co-occurrence and CDS networks, for and . Ten most significant ...
Number of articles, number of keywords, and number of co-occurrences over the four time windows.</p
<p>The size of nodes indicates the keywords centrality, and the thickness of the lines indicates the...
Note: A threshold of 4 was applied for these 132 highly cited articles, which resulted in a total of...
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