# TTAF: A two-tier task assignment framework for cooperative unit-based crowdsourcing systems

> Research article (Journal of Network and Computer Applications, 2023) · cited 11× · AI/ML

**Wikidata**: [openalex:W4385617337](https://www.wikidata.org/wiki/openalex:W4385617337)  
**Source**: https://4ort.xyz/entity/ttaf-a-two-tier-task-assignment-framework-for-cooperative-unit-based-crowdsourcing-systems