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stat.ML2026
Hierarchical Time Series Forecasting with Operator-Valued Kernels
Junjie Yang, Adeline Fermanian, Claire Boyer +1
Hierarchical time series forecasting requires generating accurate predictions that are coherent across multiple levels of aggregation. Existing methods either rely on two-stage pip…
math.ST2026
A Note on k-NN Gating in RAG
Gérard Biau, Claire Boyer
We propose a statistical proxy framework for retrieval-augmented generation (RAG) that formalizes how language models balance internal predictions with retrieved evidence. We deriv…