# Activity imputation for trip-chains elicited from smart-card data using a continuous hidden Markov model

> Research article (Transportation Research Part B Methodological, 2015) · cited 100× · AI/ML

**Wikidata**: [openalex:W2193618146](https://www.wikidata.org/wiki/openalex:W2193618146)  
**Source**: https://4ort.xyz/entity/activity-imputation-for-trip-chains-elicited-from-smart-card-data-using-a-continuous-hidden-markov-model