# Heterogeneous multivariate time series imputation by transformer model with missing position encoding

> Research article (Expert Systems with Applications, 2025) · cited 18× · AI/ML

**Wikidata**: [openalex:W4406444651](https://www.wikidata.org/wiki/openalex:W4406444651)  
**Source**: https://4ort.xyz/entity/heterogeneous-multivariate-time-series-imputation-by-transformer-model-with-missing-position-encoding