Month: June 2017

My h-index as of June 2017: Coverage of researcher profile sites

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The coverage of different researcher profile sites and their citation statistics varies. Google Scholar seems to be the site with the largest coverage, – it even crawls and indexes my slides. The open Wikidata is far from there, but may be the only one with machine-readable free access and advanced search.

Below is the citation statistics in the form of the h-index from five different services.

h Service
28 Google Scholar
27 ResearchGate
22 Scopus
22(?) Semantic Scholar
18 Web of Science
8 Wikidata

Semantic Scholar does not give an overview of the citation statistics, and the count is somewhat hidden on the individual article pages. I attempted as best as I could to determine the value, but it might be incorrect.

I made a similar statistics on 8 May 2017 and reported it on the slides Wikicite (page 42). During the one and a half month since that count, the statistics for Scopus has change from 20 to 22.

Semantic Scholar is run by the Allen Institute for Artificial Intelligence, a non-profit research institute, so they may be interested in opening up their data for search. An API does, to my knowledge, not (yet?) exist, but they have a gentle robots.txt. It is also possible to download the full Semantic Scholar corpus from (Thanks to Vladimir Alexiev for bringing my attention to this corpus).

When does an article cite you?

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Google Scholar alerted me to a recent citation to my work from Teacher-Student Relationships, Satisfaction, and Achievement among Art and Design College Students in Macau, a paper published in Journal of Education and Practice of to me unknown repute.

In the references, I see a listing of Persistence of Web References in Scientific Research where I was among the coauthors. So in which context is this paper cited? I seems strange that an article about link rot is cited by an article about teacher-student relationships… Indeed I cannot find the reference in body text when I search on the first author’s last name (“lawrence”).

Indeed several other items in references listing I cannot find: Joe Smith’s “One of Volvo’s core values”, Strunk et al.’s “The element of style” and Van der Geer’s “The art of writing a scientific article”. Notable is it that the first four references is out of order in the otherwise alphabetic sorted list of references, so there must be an error. Perhaps it is an error arising from a copy-and-paste typo?

In this case, I would say, that even though being listed, I am not actually cited by the article. The “fact” of whether it is a citation or not is important to discuss if we want to record the citation in Wikidata, where “Persistence of Web References in Scientific Research” is recorded with the item Q21012586, see also the Scholia entry. Possible we could record the erroneous citation and the use the Wikidata deprecated rank facility: “Value is known to be wrong but (used to be) commonly believed”.