# Customer Satisfaction Estimation in Contact Center Calls Based on a Hierarchical Multi-Task Model

> Research article (IEEE/ACM Transactions on Audio Speech and Language Processing, 2020) · cited 26× · AI/ML

**Wikidata**: [openalex:W2999269393](https://www.wikidata.org/wiki/openalex:W2999269393)  
**Source**: https://4ort.xyz/entity/customer-satisfaction-estimation-in-contact-center-calls-based-on-a-hierarchical-multi-task-model