The first NER dataset in the field of traffic, which is to extract the characteristics and attributes of the vehicle on the road.
- Both flat and overlapped named entities annotation.
- Both coarse-grained and fine-grained named entities.
- It contains 8 kinds of coarse-grained entities and 12 kinds of fine-grained entities. (It includes 65 vehicle brands and 4793 vehicle models all over the world.)