# A two-step hybrid unsupervised model with attention mechanism for aspect extraction

> Research article (Expert Systems with Applications, 2020) · cited 69× · AI/ML

**Wikidata**: [openalex:W3037469642](https://www.wikidata.org/wiki/openalex:W3037469642)  
**Source**: https://4ort.xyz/entity/a-two-step-hybrid-unsupervised-model-with-attention-mechanism-for-aspect-extraction