1. Hierarchical shape classification using bayesian aggregation;Barutcuoglu,2006
2. Refined experts: Improving classification in large taxonomies;Bennett,2009
3. Bi, W., & Kwok, J. T. (2012). Hierarchical multilabel classification with minimum Bayes risk. In ICDM (pp. 101–110).
4. An online algorithm for hierarchical phoneme classification;Dekel,2005
5. Hierarchical classification of web content;Dumais,2000