3 papers
cs.LG2026
Conditional Evaluation of Language Models with Cheap Auxiliary Signals
Zhi Zhang, Lingfeng Lyu, Yue Kang +1
Aggregate accuracy hides where models succeed and fail. Estimating conditional performance profiles from gold labels alone is expensive, while cheap auxiliary signals such as LLM-j…
stat.ME2026
Transfer Learning for Moderate-Dimensional Ridge-Regularized Robust Linear Regression
Lingfeng Lyu, Xiao Guo, Zongqi Liu
This paper studies transfer learning for ridge-regularized robust linear regression in the moderate-dimensional regime, where the number of predictors is of the same order as the s…
stat.ME2026
Preference-based Centrality and Ranking in General Metric Spaces
Lingfeng Lyu, Doudou Zhou
Ranking or assessing centrality in multivariate and non-Euclidean data is difficult because there is no canonical order and many depth notions become computationally fragile in hig…