# A Doubly Hierarchical Dirichlet Process Hidden Markov Model with a Non-Ergodic Structure

> Research article (IEEE/ACM Transactions on Audio Speech and Language Processing, 2015) · cited 14× · AI/ML

**Wikidata**: [openalex:W2186319236](https://www.wikidata.org/wiki/openalex:W2186319236)  
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