Chaomei Chen

The format of your CSV file is different from what I downloaded from Scopus back in Feb 2025. Scopus may have changed it, although the Feb version was more reliable. Your CSV file also has a few rows messed up. See attached. You should either remove or fix them. RIS exports from Scopus have some problems in the past. CiteSpace temporarily suspends the conversion of RIS exports from Scopus until the issues are fixed.

If the node type is references, make sure your data indeed contains references.

Most likely your local network is restricted.

Have you tried the version released on December 27, 2024?

Yes, it is possible as ties are allowed and top 50 distinct values are used to select qualified items. Thus each year there can be more than 50 qualified items.

Prepocess your data with Data > WoS > Duplicate Removal. Then try again.

The value at <i, j=""> is the co-occurring strength in cosin of i and j.</i,>

An adjacency matrix is represented in two files when you export it from CiteSpace. For example, if you have a 561-node network, you will get two files: network561x561.txt and network561x561Labels.txt. Depending on what you need, most of the information is accessible through the interactive visualization in CiteSpace. Of course, you can do whatever you need with these exported files. Node names are in the labels file, like this, i.e., 561 lines: SHAH B, 1997, SUDAAN USERS MANUAL, V0, P0 IMM NAT SERV,...