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Training instability remains a critical challenge in large language model (LLM) pretraining, often manifesting as sudden gradient explosions that waste significant computational resources. We study training failures in a 5M-parameter…

机器学习 · 计算机科学 2026-02-03 Lianhai Ren , Yucheng Ding , Xiao Liu , Qianxiao Li , Peng Cheng , Yeyun Gong

We consider the weighted belief-propagation (WBP) decoder recently proposed by Nachmani et al. where different weights are introduced for each Tanner graph edge and optimized using machine learning techniques. Our focus is on simple-scaling…

信息论 · 计算机科学 2019-11-07 Mengke Lian , Fabrizio Carpi , Christian Häger , Henry D. Pfister

Data augmentation is a widely adopted technique for avoiding overfitting when training deep neural networks. However, this approach requires domain-specific knowledge and is often limited to a fixed set of hard-coded transformations.…

机器学习 · 统计学 2021-08-19 Oguz Kaan Yuksel , Sebastian U. Stich , Martin Jaggi , Tatjana Chavdarova

We consider the problem of learning linear prediction models with model misspecification bias. In such case, the collinearity among input variables may inflate the error of parameter estimation, resulting in instability of prediction…

机器学习 · 计算机科学 2019-12-02 Zheyan Shen , Peng Cui , Tong Zhang , Kun Kuang

The integration of speech into Large Language Models (LLMs) has substantially expanded their capabilities, but often at the cost of weakening their core textual competence. This degradation limits the ability of speech-enabled LLMs to fully…

计算与语言 · 计算机科学 2025-09-30 Chao Wang , Rui-Chen Zheng , Yang Ai , Zhen-Hua Ling

The prevailing paradigm in large language model (LLM) development is to pretrain a base model, then perform further training to improve performance and model behavior. However, hyperparameter optimization and scaling laws have been studied…

机器学习 · 计算机科学 2026-02-12 Tessa Han , Sebastian Bordt , Hanlin Zhang , Sham Kakade

Large language models have demonstrated capabilities in text generation, while their increasing parameter scales present challenges in computational and memory efficiency. Post-training sparsity (PTS), which reduces model cost by removing…

计算与语言 · 计算机科学 2026-02-26 Minhao Jiang , Zhikai Li , Xuewen Liu , Jing Zhang , Mengjuan Chen , Qingyi Gu

Recent work has identified simple empirical scaling laws for language models, linking compute budget, dataset size, model size, and autoregressive modeling loss. The validity of these simple power laws across orders of magnitude in model…

机器学习 · 统计学 2021-09-27 Amélie Chatelain , Amine Djeghri , Daniel Hesslow , Julien Launay , Iacopo Poli

We evaluate three simple, normalization-centric changes to improve Transformer training. First, we show that pre-norm residual connections (PreNorm) and smaller initializations enable warmup-free, validation-based training with large…

计算与语言 · 计算机科学 2020-01-01 Toan Q. Nguyen , Julian Salazar

The advent of Large Language Models (LLMs) has revolutionized natural language processing, enabling advanced understanding and reasoning capabilities across a variety of tasks. Fine-tuning these models for specific domains, particularly…

人工智能 · 计算机科学 2025-04-21 Chenlu Ding , Jiancan Wu , Yancheng Yuan , Jinda Lu , Kai Zhang , Alex Su , Xiang Wang , Xiangnan He

Normalization layers in modern large language models (LLMs) consist of a deterministic normalization operation and a learnable scale vector. While the normalization operation has been extensively studied, the scale vector remains poorly…

机器学习 · 计算机科学 2026-05-27 Mingze Wang , Shuchen Zhu , Yuxin Fang , Binghui Li , Kai Shen , Shu Zhong

Memory constraint of always-on devices is one of the major concerns when deploying speech processing models on these devices. While larger models trained with sufficiently large amount of data generally perform better, making them fit in…

计算与语言 · 计算机科学 2024-01-09 Yiming Wang , Jinyu Li

Recent research has shown the existence of significant redundancy in large Transformer models. One can prune the redundant parameters without significantly sacrificing the generalization performance. However, we question whether the…

计算与语言 · 计算机科学 2022-02-15 Chen Liang , Haoming Jiang , Simiao Zuo , Pengcheng He , Xiaodong Liu , Jianfeng Gao , Weizhu Chen , Tuo Zhao

Emergent Large Language Models (LLMs) use their extraordinary performance and powerful deduction capacity to discern from traditional language models. However, the expenses of computational resources and storage for these LLMs are stunning,…

计算与语言 · 计算机科学 2024-06-25 Yifei Gao , Jie Ou , Lei Wang , Yuting Xiao , Zhiyuan Xiang , Ruiting Dai , Jun Cheng

Loss explosions in training deep neural networks can nullify multi-million dollar training runs. Conventional monitoring metrics like weight and gradient norms are often lagging and ambiguous predictors, as their values vary dramatically…

机器学习 · 计算机科学 2025-10-07 Haiquan Qiu , You Wu , Yingjie Tan , Yaqing Wang , Quanming Yao

Learning long term dependencies in recurrent networks is difficult due to vanishing and exploding gradients. To overcome this difficulty, researchers have developed sophisticated optimization techniques and network architectures. In this…

神经与进化计算 · 计算机科学 2015-04-09 Quoc V. Le , Navdeep Jaitly , Geoffrey E. Hinton

Training AI models in cybersecurity with help of vast datasets offers significant opportunities to mimic real-world behaviors effectively. However, challenges like data drift and scarcity of labelled data lead to frequent updates of models…

机器学习 · 计算机科学 2026-02-04 Saurabh Anand , Shubham Malaviya , Manish Shukla , Sachin Lodha

Code-switching (CS) refers to the switching of languages within a speech signal and results in language confusion for automatic speech recognition (ASR). To address language confusion, we propose a language alignment loss (LAL) that aligns…

音频与语音处理 · 电气工程与系统科学 2025-11-04 Hexin Liu , Xiangyu Zhang , Haoyang Zhang , Leibny Paola Garcia , Andy W. H. Khong , Eng Siong Chng , Shinji Watanabe

This paper investigates the scaling properties of Recurrent Neural Network Language Models (RNNLMs). We discuss how to train very large RNNs on GPUs and address the questions of how RNNLMs scale with respect to model size, training-set…

计算与语言 · 计算机科学 2015-02-03 Will Williams , Niranjani Prasad , David Mrva , Tom Ash , Tony Robinson

Foundation models have achieved remarkable success, yet their growing parameter counts pose significant computational and memory challenges. Low-rank factorization offers a promising route to reduce training and inference costs, but the…

机器学习 · 计算机科学 2026-02-16 Paul Janson , Edouard Oyallon , Eugene Belilovsky