# An improved transformer model with multi-head attention and attention to attention for low-carbon multi-depot vehicle routing problem

> Research article (Annals of Operations Research, 2022) · cited 26× · AI/ML

**Wikidata**: [openalex:W4283166772](https://www.wikidata.org/wiki/openalex:W4283166772)  
**Source**: https://4ort.xyz/entity/an-improved-transformer-model-with-multi-head-attention-and-attention-to-attention-for-low-carbon-multi-depot-vehicle-ro