arXiv Machine Learning

Hard Way, The Only Way: Provable Merits of Training on Hardest Examples

The paper presents a high‑dimensional theory of learning with data pruning via weighted empirical risk minimization. It analyzes pruning along a one‑dimensional subspace and derives limiting test‑error curves as input dimension and sample size grow with a fixed ratio. The authors show that, in the high‑sample regime, the optimal strategy is to keep only the 2N hardest examples, achieving a Bayes‑optimal error scaling of order N/P instead of the usual sqrt(N/P).

arXiv Computer Vision
1d ago

Is Oracle Pruning the True Oracle?

arXiv:2412.00143v3 Announce Type: replace-cross Abstract: Oracle pruning, which selects unimportant weights by minimizing the pruned train loss, has served as the foundation for most neural network p...

By Sicheng Feng, Keda Tao, Huan Wang
arXiv Computation and Language
Aug 31

Pruning Laws for Large Language Models

arXiv:2504.04342v2 Announce Type: replace Abstract: Scaling up model parameters and training data consistently improves the performance of large language models (LLMs), but at the cost of rapidly gro...

By Ayan Sengupta, Siddhant Chaudhary, Tanmoy Chakraborty
arXiv AI
Jun 12

Structured vs. Unstructured Pruning: An Exponential Gap

arXiv:2603. 02234v3 Announce Type: replace-cross Abstract: The Strong Lottery Ticket Hypothesis (SLTH) states that large, randomly initialized neural networks contain sparse subnetworks capable of approximating a target function at initialization without training, suggesting that pruning alone is sufficient.

By Davide Ferre' (CNRS, COATI, UniCA, I3S), Fr\'ed\'eric Giroire (I3S, COATI, UniCA), Frederik Mallmann-Trenn (CNRS, COATI, I3S, UniCA), Emanuele Natale (CNRS, COATI, I3S, UniCA)
arXiv Machine Learning
6d ago

Rank-Variance Scores for Importance Sampling and Data Pruning under Label Contamination

The paper introduces Rank‑Variance Scores (TRV) as a new metric for importance sampling and data pruning in the presence of label contamination. It shows that traditional loss‑based methods fail because corrupted examples often have high loss, and proves that a useful score must be non‑monotonic in loss. By ranking examples across multiple independently trained proxy models, TRV captures both between‑proxy disagreement and within‑proxy variance, enabling Disagreement‑Regularized Importance Sampling (DR‑IS) and TRV‑based pruning to outperform random selection on noisy CIFAR‑10/100 datasets.

By Csongor Horv\'ath, Ida-Maria Sintorn, Prashant Singh