# Multi-step metal prices forecasting based on a data preprocessing method and an optimized extreme learning machine by marine predators algorithm

> Research article (Resources Policy, 2021) · cited 43× · AI/ML

**Wikidata**: [openalex:W3204905949](https://www.wikidata.org/wiki/openalex:W3204905949)  
**Source**: https://4ort.xyz/entity/multi-step-metal-prices-forecasting-based-on-a-data-preprocessing-method-and-an-optimized-extreme-learning-machine-by-ma