# Natural language question answering over knowledge graph: the marriage of SPARQL query and keyword search

> Research article (Knowledge and Information Systems, 2021) · cited 30× · AI/ML

**Wikidata**: [openalex:W3120915586](https://www.wikidata.org/wiki/openalex:W3120915586)  
**Source**: https://4ort.xyz/entity/natural-language-question-answering-over-knowledge-graph-the-marriage-of-sparql-query-and-keyword-search