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深層学習

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arxiv

Singular Geometry of Low-Rank Adaptation

Low-rank adaptation (LoRA) is now a standard approach to parameter-efficient fine-tuning of large neural networks. Its low-rank factorization is inherently non-identifiable, making LoRA a singular…

deep-learning
arxiv

Score-Preserving Continual Lasso under Task Shift

Continual learning (CL) aims to learn from sequential tasks while mitigating catastrophic forgetting when historical data are no longer accessible. We study continual learning for high-dimensional…

deep-learning
arxiv

Exact Global Minimax Risk near Nonidentification

We study squared-error estimation when a nuisance parameter is unidentified on a submodel but affects a target that vanishes there. For models with higher-order profile expansions, we give sufficient…

deep-learning
arxiv

Empirical concentration for chains with infinite memory

Concentration inequalities for time series usually involve unknown quantities measuring dependence. This prevents their direct use as confidence bounds, or as criteria for learning algorithms.

deep-learning
huggingface

Every Weight Is a Path of Shared Discrete Decisions

We introduce TWIG (Tree-structured Weights with Inherited Gates), a representation in which every weight of a neural network is the end of a path of small discrete decisions: a sign, a shift by a…

deep-learning
huggingface実装リンクあり

Nested Sparsity for Scalable Pretraining and Continual Learning

Mixture-of-experts (MoE) transformers, the standard backbone for modern large-scale deep learning, employ conditional computation: only a sparse subset of model weights is used in each forward pass.…

deep-learning
huggingface

Does LeWorldModel Preserve Local Action Geometry?

We examine how closely pretrained LeWorldModel (LeWM) reproduces the effects of small action changes. Using matched simulator and model responses, we measure action sensitivity with Gram matrices at…

deep-learning