# A survey on question answering systems over linked data and documents

> Research article (Journal of Intelligent Information Systems, 2019) · cited 120× · AI/ML

**Wikidata**: [openalex:W2992007572](https://www.wikidata.org/wiki/openalex:W2992007572)  
**Source**: https://4ort.xyz/entity/a-survey-on-question-answering-systems-over-linked-data-and-documents