This paper explores optimal aggregation techniques for multiclass classification problems, extending existing methods from binary classification. It introduces novel aggregation frameworks that achieve optimal or near-optimal convergence rates, notably independent of the number of classes. The research highlights limitations of traditional proper aggregation and proposes improper probability-mixture aggregates to overcome these challenges. AI
RANK_REASON The item is an academic paper published on arXiv detailing new research in statistics and machine learning. [lever_c_demoted from research: ic=1 ai=1.0]
- 0/1 loss
- arXiv
- binary classification
- conv(F)
- ERM
- Hugging Face
- multiclass classification
- multinomial logistic losses
- span(F)
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