# Extraction of MapReduce-based features from spectrograms for audio-based surveillance

> Research article (Digital Signal Processing, 2019) · cited 17× · AI/ML

**Wikidata**: [openalex:W2910136993](https://www.wikidata.org/wiki/openalex:W2910136993)  
**Source**: https://4ort.xyz/entity/extraction-of-mapreduce-based-features-from-spectrograms-for-audio-based-surveillance