# RETRACTED ARTICLE: Optimization using the firefly algorithm of ensemble neural networks with type-2 fuzzy integration for COVID-19 time series prediction

> Research article (Soft Computing, 2021) · cited 48× · AI/ML

**Wikidata**: [openalex:W3120101523](https://www.wikidata.org/wiki/openalex:W3120101523)  
**Source**: https://4ort.xyz/entity/retracted-article-optimization-using-the-firefly-algorithm-of-ensemble-neural-networks-with-type-2-fuzzy-integration-for