Understanding semantic similarity among subway stations using smart card data

National University of Singapore, July. 2018 ~ Sept. 2018
Advisor: Prof. Lee Der-Horng and Prof. Jiangang Jin
Co-worker: Dr. Siyu Hao
Publication: Transportation Research Part C: Emerging Technology
Resources: DOI

• Proposed a new conception to understand metropolitan mobility as words
• Independently selected mobility features then trained stacked autoencoder network to discover mobility semantics
• Applied topic modeling (TF-IDF+SVD+LDA) on scraped POI data to find service semantics
• Paper published in Transportation Research Part C: Emerging Technology