CRG Index: A More Sensitive Ht-Index for Enabling Dynamic Views of Geographic Features

The ht-index is a recently proposed tool for capturing dynamic views of the evolution process of geographic features, but the htindex is not sensitive to small changes during this process. To address this problem, an improved ht-index, a cumulative rate of growth (CRG) index, was proposed. Compared to the ht-index, the CRG index is more sensitive to changes during the evolution process of geographic features, and the process is better captured by the CRG index as a result. In addition, the head/tail breaks method (used to derive the ht-index) was adjusted, making the CRG index a universal tool for capturing the dynamic views of both increasingly heterogeneous and increasingly homogeneous geographic features.