# Four-participant group conversation: A facilitation robot controlling engagement density as the fourth participant

> Research article (Computer Speech & Language, 2015) · cited 58× · AI/ML

**Wikidata**: [openalex:W1975096659](https://www.wikidata.org/wiki/openalex:W1975096659)  
**Source**: https://4ort.xyz/entity/four-participant-group-conversation-a-facilitation-robot-controlling-engagement-density-as-the-fourth-participant