# Active Learning Methods for Efficient Hybrid Biophysical Variable Retrieval

> Research article (IEEE Geoscience and Remote Sensing Letters, 2016) · cited 101× · AI/ML

**Wikidata**: [openalex:W2404939661](https://www.wikidata.org/wiki/openalex:W2404939661)  
**Source**: https://4ort.xyz/entity/active-learning-methods-for-efficient-hybrid-biophysical-variable-retrieval