# Analysis of Subway Passenger Flow for a Smarter City: Knowledge Extraction From Seoul Metro’s ‘Untraceable’ Big Data

> Research article (IEEE Access, 2020) · cited 12× · AI/ML

**Wikidata**: [openalex:W3016068773](https://www.wikidata.org/wiki/openalex:W3016068773)  
**Source**: https://4ort.xyz/entity/analysis-of-subway-passenger-flow-for-a-smarter-city-knowledge-extraction-from-seoul-metros-untraceable-big-data