Field Weighted Citation Impact (FWCI): Home

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• Field-Weighted Citation Impact (FWCI) is the ratio of the total citations actually received by the denominator’s output, and the total citations that would be expected based on the average of the subject field. To Scopus database it is sourced directly from SciVal. (FWCI) score comes from the Scopus database and shows how the article's citation count compares to similar articles in the same field and timeframe. 

• Field-Weighted Citation Impact (FWCI) is an indicator of mean citation impact, and compares the actual number of citations received by a document with the expected number of citations for documents of the same document type (article, review, book, or conference proceeding), publication year, and subject area.

• The metric is always defined with a reference to a global baseline of 1.0 and intrinsically accounts for differences in citation accrual over time, differences in citation rates for different document types (e.g., reviews typically attract more citations than articles), as well as subject-specific difference in citation frequencies overall and over time and document types. It is therefore a sophisticated normalised bibliometric.

• The FWCI builds on the field-normalisation method suggested by Lundberg (2007) and Waltman, van Eck, van Leeuwen, Visser, and van Raan (2011), normalising for differences among document types, publication ages and fields. Like the MNCS indicator (Waltman et al., 2011), the FWCI uses harmonic rather than arithmetic averages to calculate the expected number of citations of a publication that belongs to multiple fields.

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Reference: Purkayastha, Amrita, Eleonora Palmaro, Holly J. Falk-Krzesinski, Jeroen Baas, "Comparison of two article-level, field-independent citation metrics: Field-Weighted Citation Impact (FWCI) and Relative Citation Ratio (RCR)", Journal of Informetrics, Vol. 13, no. 2, 2019, pp. 635-642, ISSN 1751-1577, https://doi.org/10.1016/j.joi.2019.03.012. (http://www.sciencedirect.com/science/article/pii/S1751157718303559)

1.   Login to the Scopus database
2.   Find required article from the database
3.   Click on the article's title to see the full record 
4.   On the full record, go to the bottom of the right-hand column and look at the Metric box for: 

•   Number of citations,
•   The percentile that number represents, and 
•   Field-Weighted Citation Impact Score (FWCI)

The global mean of the FWCI is 1.0, so it is easy to compare a set of values to a benchmark. For example, an FWCI of 1.50 means 50% more cited than the world average; whereas, an FWCI of 0.75 means 25% less cited than the world average (Metrics-toolkit).

Based on the Scopus sample record, the article was cited 274 times which put it in the 97th percentile of articles within its field and its FWCI is 4.41 which indicates that it received almost 5 times the number of citations the average article in this field received.