“For a long time, there were just two main citation sources that had data that could claim to be relatively comprehensive multi-discipline wise, namely Web of Science and Scopus. (We will come to Google Scholar later).
As I noted in past posts (here, here), this has changed in the last 2 years, new citation sources both proprietary such as Dimensions, and open such as OpenCitations Corpus have started to emerge.
At the same time, I have recently became interested in the potential of Science or bibliometric tools for aiding phd students who want to do more sophisticated literature review.
These tools generally accept inputs from citation indexes and I’ve started to notice that the science mapping tools that are still in active development e.g. VOSViewer , Citespace or newer tools such as Citation Gecko have started to respond to the trend of new emerging citation indexes and have began supporting these new sources on top of the traditional Web of Science and Scopus data.
Similarly the popular tool Publish or Perish tool by Anne-Wil Harzing which began by supporting extraction of results and citations from Google Scholar has now also grown now to support other citation indexes beyond Scopus or Web of Science.
In this blog post, I will talk about some of the new indexes, Science mapping tools are starting to support, and as an aside provide a brief overview of what such tools can do and my first thoughts on them.
As it stands, it seems Microsoft Academic graph (due to it’s size), Crossref (due to its openness) and Dimensions (Digital Science backed) are starting to be sources used by such tools. The first two are also classed as open data which has helped to fuel their popularity, while the last has made it easy for bona fide researchers to access.
A warning, I’m still trying to figure out these tools, so chances are my understanding is incomplete!…”