# An Improved Sap Flow Prediction Model Based on CNN-GRU-BiLSTM and Factor Analysis of Historical Environmental Variables

> Research article (Forests, 2023) · cited 17× · AI/ML

**Wikidata**: [openalex:W4382136403](https://www.wikidata.org/wiki/openalex:W4382136403)  
**Source**: https://4ort.xyz/entity/an-improved-sap-flow-prediction-model-based-on-cnn-gru-bilstm-and-factor-analysis-of-historical-environmental-variables