Since long I am observing that number of citations to my research publications differ on Research gate and google scholar profile. Is this happening with you also? Can anybody suggest that how can we link both profiles together?
Khalid - Research Gate and Google Scholar use different metrics to include and recognise citations. The same is so if you use other related databases i.e. Scopus and ISI. Google Scholar tends to be the more generous in terms of the range of sources it includes in its citation i.e. theses, reports etc. That is why the numbers differ. There is no current way of linking the profiles.
I think both services use web crawlers to collect citation counts for authors' profiles. Two services are independent and therefore the counts could vary significantly even for the same author. In addition to the method of indexing, the sources they use for indexing are also different (as well as not well documented). Duplicate counts, counts of non-scholarly articles all could lead to give you different citation counts.
We regularly import citation data from different sources and do our best to ensure accuracy. However, while citations using standard citation styles are usually extracted accurately on ResearchGate, there are some cases where this can be difficult.
Here are the most common cases where citations may be missing:
When citations have incomplete metadata (e.g., publication date, journal, abstract)
When the citing paper is not on ResearchGate
When full-text PDFs are created by scanning a hard copy, we can't extract citations
If you recently added a publication to ResearchGate and notice that citations are missing, please be patient as this can take some time. Please also note that we aren't able to manually add your citations from other sources, e.g., Google Scholar.
We understand that it's frustrating when citations aren't displayed, so we're always working on new ways to improve how we extract and match citations.