Scopus Adds More Article Level Metrics

Scopus has added a new set of article level metrics. I think the most interesting one is "Field-Weighted Citation Impact" which tells you how cited your article is relative to other similar articles. I think this metric has a big potential in tenure and promotion cases. Here is Scopus' explanation:

Field-weighted Citation Impact (FWCI) 

Field-Weighted Citation Impact is sourced directly from SciVal.
As defined in Snowball Metrics, Recipe Book/Field-Weighted Citation Impact Field-Weighted Citation Impact 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. A Field-Weighted Citation Impact of:

• *Exactly 1* means that the output performs just as expected for the global average.
• More *than 1* means that the output is more cited than expected according to the global average. For example, 1.48 means 48% more cited than expected.
• Less than 1 means that the output is cited less than expected according to the global average.

Field-Weighted Citation Impact takes into account the differences in research behaviour across disciplines. It is particularly useful for a denominator that combines a number of different fields, although it can be applied to any denominator.

• Researchers working in fields such as medicine and biochemistry typically produce more output 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.
• In a denominator comprising multiple disciplines, the effects of outputs in medicine and biochemistry dominate the effects of those in mathematics and education.
• This means that using non-weighted metrics, an institution that is focused on medicine will appear to perform better than an institution that specialises in social sciences.
• The methodology of Field-Weighted Citation Impact accounts for these disciplinary differences.