# A Hierarchical multi-input and output Bi-GRU Model for Sentiment Analysis on Customer Reviews

> Research article (IOP Conference Series Materials Science and Engineering, 2018) · cited 27× · AI/ML

**Wikidata**: [openalex:W2795337660](https://www.wikidata.org/wiki/openalex:W2795337660)  
**Source**: https://4ort.xyz/entity/a-hierarchical-multi-input-and-output-bi-gru-model-for-sentiment-analysis-on-customer-reviews