# Improving unsupervised keyphrase extraction by modeling hierarchical multi-granularity features

> Research article (Information Processing & Management, 2023) · cited 12× · AI/ML

**Wikidata**: [openalex:W4362585294](https://www.wikidata.org/wiki/openalex:W4362585294)  
**Source**: https://4ort.xyz/entity/improving-unsupervised-keyphrase-extraction-by-modeling-hierarchical-multi-granularity-features