Getting Started

Thanks Ludo for your assistance. I have realised that the problem was specifically associated with conferences.. Articles seem to be find.

Thanks Ludo for your reply. I will try again and see what happens.
Regards
Bosire

It worked, Thanks.

I also have the same problem, I already downloaded from PoP with keyword and save the result as RIS, however when a choose create a map with bibliographic data, the co-occurrence fitur was disabled. Could you give me advise about that (VosViewer 1.6.15). Thanks

Thank you for your quick response.
I am doing bibliographic coupling.
and how can we explain the mentioned information in the case of co-citation?

I thank you so much for your response. If I can ask, if axes have no meaning, and if we have item A and item B with the same distance with item C, why we can have item A above item C (in vertical distance) and item B next item C (in horizontal distance), I could understand how VOS find the distance, but how it located such items, I could not get it. I am sorry if I am missing an obvious point here.

Thank you for your kind support. "sources of primary data by country" : For example, an author published an article who is working at Harvard University which is his affiliation but he used data from Malaysia. So the source of data was Malaysia and his affiliation was Harvard. I wanna know how to find source of data using VOSviewer? or is there any other software for this purpose?

Thanks very much Ludo. I will give it a try.

Thank you for your answer ! I already use the data source Web of Science and it doesn't work... By "the data you provide as input to the software" you mean the key words I enter in the first place in the search engine?

Is it possible to use when we have about one hundred documents?

Thank you so much!!! you saved me many hours of work.

Perfect, I am clear now. Thank you

I use different sources, for example, I downloaded bibliographic data of our library OPAC (Sirsy Simphony), to analysis thesis and dissertations to know the most researched topics. Or sometimes I mix information of different databases or sources from grey literature, to do a state of art

I would first like to say thank you for your reply is a much appreciated your quick response and support with this software.
It would be important that this term is included . I was thinking along the same lines I tried increasing the threshold to include all terms instead of the standard 60%. The term did appear when I did this but it still had a relatively low occurrence count compared to the individual five year period. I also tried all the other settings in regards to binary counting full counting abstract only et cetera see if it had a similar pattern and it did. Just wondering if you could help me with the command to make sure it counts this time for the combined library. Just that I'm doing this analysis for a research team and it can going to struggle to explain why the term is so prevalent in the five year periods and then when I combine the citations it disappears. Do you know why the occurrence count would be so much lower than the five year periods in both binary and full counting in the combined library compared to the 5 Years Libraries. I would assume when I combine it is not identifying all the occurrences of that term to be important not counting every one of them as it does in the five year period versions. We were planning to make a table which would count the occurrence of the term in each five year period with the idea that it should add up to the same as combined library with all years?

Sir

WoS is showing different most productive author and VOSviewer is showing different. How to justify most productive author in publication.

Thank you, Ludo, I'll give that a try.
Rhonda

Got it, thanks.
Philip

Ludo
Thanks for the quick response. I'm not surprised that it was not clear! That's why I checked.
I will use your description with attribution in my future publications.
Thanks again and stay safe!
Philip

There are no strict limits on the size of the networks that VOSviewer is able to visualize. In practice, however, visualizing networks consisting of more than 5000 or 10000 items becomes difficult in VOSviewer. In general, I recommend against having more than 5000 items in your network. If you want to visualize a really large network, you need to use other software tools, such as Gephi.