Field Weighted Citation Index

[Ivo Bleylevens]

Dear readers,

does someone know anything about the Field Weighted Citation Index (fwci field) that I discovered recently in the OpenAlex API? Or should I wait for official release notes about this ... maybe im too impatient.

I compared a bit and since OpenAlex citation counts can be usually much higher than in any other indexing database (Scopus or WOS), the Field Weighted Citation Index can also be much higher than scores that I was used to in Incites or SciVal (they only use citations from work in their own database) for a single work.

Would love to hear thoughts from within this community.

Bye !

[Gaël Bernard]

Hello,

Thanks for pointing out this new field that I didn't know. 

I am also curious about this metadata. Could it be a CNCI metric for the 26 fields? If that is the case, would it make sense to also calculate them for the domains, subfields, and topics? Should it be done only when the new metadata is_core is true? Or both? Would it also make sense to calculate other metrics such as PPtop1? Sorry, that's a lot of questions but I kind of calculate these metrics manually and it's a bit cumbersome. 

Regarding your question Ivo, even though the number of citations could be higher in OpenAlex, due to the normalization, the average FWCI should be 1, right? 

Thank you!

Gaël

[Jason Portenoy]

Hello,

We will be announcing and adding documentation for FWCI soon. Thanks for your patience.

Quick answers to some of Gaël's questions:

> Could it be a CNCI metric for the 26 fields? If that is the case, would it make sense to also calculate them for the domains, subfields, and topics?

It uses subfields. We might calculate for other buckets in the future.

> Should it be done only when the new metadata is_core is true? Or both?

No it’s for everything in the bucket, is_core is a new feature related to the CWTS Open Leiden Ranking. We will be documenting this soon.

> Would it also make sense to calculate other metrics such as PPtop1?

We should be releasing this in the next few months.

Cheers,

OpenAlex Team

[Ivo Bleylevens]

Since with the release of the latest snapshot also the Citation Normalized Percentile is included, next to the recently introduced FWCI, I was wondering:  is this at the moment documented somewhere and officially released?

Op woensdag 10 juli 2024 om 00:24:24 UTC+2 schreef jpor...@ourresearch.org: