Many existing metrics to evaluate scholars only concern their scientific impact and omit the importance of breadth of research. In this poster, we define a new metric for breadth of research based on the generalized Stirling metric which considers many aspects of breadth of research and satisfies several axioms for breadth of metrics. Also experiments on the ACM dataset show weak correlation between breadth of research measured by our new metric and scientific impact. And the variation of our metric over time illustrates a possible publication pattern for scholars.ye
