A simple presentation of cocitation () and bibcoupling() functions
Demostration of fundamental terms of scientometric analysis
 What is citing article, what is cited article ?
2)You will learn how to develop relations between articles who to not cite each other

What is cocitation ?

how to use igraph library in R to visualize cocitation Netwroks
For a more advanced take on weights in cocitations and bibliographic coupling, you may want to take a look at this article. The authors (colleagues of mine) suggest that normalising the weights by â€śfractionalizingâ€ť the weights might make more sense in some circumstances. That is, normally, the weight in bibliographic coupling between node i and j is defined as
where A_{ik} = 1 if node i cites node k and 0 otherwise. With fractionalization, this would be defined as
where d_k = \sum_i A_{ik} is the indegree of node k, or the number of times k is cited in this case.
Perhaps it would be of interest to also support this definition in igraph
.