# HCA: Hierarchical Compare Aggregate model for question retrieval in community question answering

> Research article (Information Processing & Management, 2020) · cited 24× · AI/ML

**Wikidata**: [openalex:W3036294882](https://www.wikidata.org/wiki/openalex:W3036294882)  
**Source**: https://4ort.xyz/entity/hca-hierarchical-compare-aggregate-model-for-question-retrieval-in-community-question-answering