# An Efficient Discrete Wavelet Transform Based Partial Hadamard Feature Extraction and Hybrid Neural Network Based Monarch Butterfly Optimization for Liver Tumor Classification

> Research article (Engineered Science, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W4206751909](https://www.wikidata.org/wiki/openalex:W4206751909)  
**Source**: https://4ort.xyz/entity/an-efficient-discrete-wavelet-transform-based-partial-hadamard-feature-extraction-and-hybrid-neural-network-based-monarc