is a Snowball Metric.
Field-Weighted Citation Impact is the ratio of the citations received by an entity's outputs and the average number of citations received by all other similar outputs. An entity can be an institution, a research group or an individual researcher.
The Field-Weighted Citation Impact enables a publication (or set of publications) to be compared with the global average citations received by similar publications* in the same year and field of research. This metric is useful for benchmarking entities regardless of differences in number of publication outputs, disciplinary profile, age, and publication-type composition e.g. to:
Field-Weighted Citation Impact is a field-normalised metric i.e. it takes the differences in research behaviour across disciplines into account and so can be used to combine different fields for analysis, or make comparisons between fields. As an example, researchers working in medicine and biochemistry typically produce more publications, with more co-authors and longer reference lists, than researchers working in fields such as mathematics and education. This is a reflection of research culture, and not performance.
A Field-Weighted Citation Impact of:
The citations received in the year in which an item was published, and the following 3 years, are counted for this metric.
Field-Weighted Citation Impact will vary for the same research entity in different database sources. Comparisons should therefore only be made from a single source. See appropriate use of publication and citation metrics.
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