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A major problem with Active Learning (AL) is high training costs since models are typically retrained from scratch after every query round. We start by demonstrating that standard AL on neural networks with warm starting fails, both to…

机器学习 · 计算机科学 2023-12-14 Arnav Das , Gantavya Bhatt , Megh Bhalerao , Vianne Gao , Rui Yang , Jeff Bilmes

Evaluation of large language models (LLMs) has raised great concerns in the community due to the issue of data contamination. Existing work designed evaluation protocols using well-defined algorithms for specific tasks, which cannot be…

计算与语言 · 计算机科学 2024-06-10 Kaijie Zhu , Jindong Wang , Qinlin Zhao , Ruochen Xu , Xing Xie

While Large Language Model (LLM) multi-agent systems (MAS) offer a transformative approach to simulating human behavior in complex systems, it remains largely unexplored whether these simulations can replicate realistic structural and…

社会与信息网络 · 计算机科学 2026-05-14 Siqi Miao , Ziyang Chen , Yuhong Luo , Hans Hao-Hsun Hsu , Mufei Li , Kaiqing Zhang , Pan Li

As generative AI continues to evolve, Vision Language Models (VLMs) have emerged as promising tools in various healthcare applications. One area that remains relatively underexplored is their use in human activity recognition (HAR) for…

计算与语言 · 计算机科学 2025-11-18 Abderrazek Abid , Thanh-Cong Ho , Fakhri Karray

Tool use in stateful environments presents unique challenges for large language models (LLMs), where existing test-time compute strategies relying on repeated trials in the environment are impractical. We propose dynamics modelling (DyMo),…

人工智能 · 计算机科学 2025-09-22 Shangmin Guo , Omar Darwiche Domingues , Raphaël Avalos , Aaron Courville , Florian Strub

Language models (LMs) exhibit impressive performance and generalization capabilities. However, LMs struggle with the persistent challenge of catastrophic forgetting, which undermines their long-term sustainability in continual learning…

机器学习 · 计算机科学 2024-10-08 Wenyu Du , Shuang Cheng , Tongxu Luo , Zihan Qiu , Zeyu Huang , Ka Chun Cheung , Reynold Cheng , Jie Fu

The costly human effort required to prepare the training data of machine learning (ML) models hinders their practical development and usage in software engineering (ML4Code), especially for those with limited budgets. Therefore, efficiently…

软件工程 · 计算机科学 2023-06-05 Qiang Hu , Yuejun Guo , Xiaofei Xie , Maxime Cordy , Lei Ma , Mike Papadakis , Yves Le Traon

Recent studies have identified "retrieval heads" in Large Language Models (LLMs) responsible for extracting information from input contexts. However, prior works largely rely on static statistics aggregated across datasets, identifying…

计算与语言 · 计算机科学 2026-05-11 Yuping Lin , Zitao Li , Yue Xing , Pengfei He , Yingqian Cui , Yaliang Li , Bolin Ding , Jingren Zhou , Jiliang Tang

Scaling neural networks has driven breakthrough advances in machine learning, yet this paradigm fails in deep reinforcement learning (DRL), where larger models often degrade performance due to unique optimization pathologies such as…

机器学习 · 计算机科学 2025-10-15 Guozheng Ma , Lu Li , Zilin Wang , Haoyu Wang , Shengchao Hu , Leszek Rutkowski , Dacheng Tao

The dynamic range of activations is a first-order constraint for low-bit quantization, activation scaling, and stable LLM inference. Prior work characterized outlier features and massive activations on pre-2024 LLaMA-style models, and the…

计算与语言 · 计算机科学 2026-05-18 Luxuan Chen , Han Tian , Xinran Chen , Rui Kong , Fang Wang , Jiamin Chen , Yuchen Li , Jiashu Zhao , Shuaiqiang Wang , Haoyi Xiong , Dawei Yin

Test-time inference has emerged as a powerful paradigm for enabling language models to ``think'' longer and more carefully about complex challenges, much like skilled human experts. While reinforcement learning (RL) can drive…

计算与语言 · 计算机科学 2025-08-18 Kanishk Gandhi , Ayush Chakravarthy , Anikait Singh , Nathan Lile , Noah D. Goodman

Scaling autoregressive large language models (LLMs) has driven unprecedented progress but comes with vast computational costs. In this work, we tackle these costs by leveraging unstructured sparsity within an LLM's feedforward layers, the…

机器学习 · 计算机科学 2026-05-11 Edoardo Cetin , Stefano Peluchetti , Emilio Castillo , Akira Naruse , Mana Murakami , Llion Jones

Meta continual learning algorithms seek to train a model when faced with similar tasks observed in a sequential manner. Despite promising methodological advancements, there is a lack of theoretical frameworks that enable analysis of…

机器学习 · 计算机科学 2020-10-12 R. Krishnan , Prasanna Balaprakash

Active learning (AL) accelerates scientific discovery by prioritizing the most informative experiments, but traditional machine learning (ML) models used in AL suffer from cold-start limitations and domain-specific feature engineering,…

Activation function is a pivotal component of deep learning, facilitating the extraction of intricate data patterns. While classical activation functions like ReLU and its variants are extensively utilized, their static nature and…

机器学习 · 计算机科学 2025-11-04 Barathi Subramanian , Rathinaraja Jeyaraj , Rakhmonov Akhrorjon Akhmadjon Ugli

Adapting Large Language Models (LLMs) to downstream tasks using Reinforcement Learning (RL) has proven to be an effective approach. However, LLMs do not inherently define the structure of an agent for RL training, particularly in terms of…

计算与语言 · 计算机科学 2025-03-28 Chengxing Jia , Ziniu Li , Pengyuan Wang , Yi-Chen Li , Zhenyu Hou , Yuxiao Dong , Yang Yu

The rapid advancement of Large Language Models (LLMs) has opened new avenues in education. This study examines the use of LLMs in supporting learning in machine learning education; in particular, it focuses on the ability of LLMs to…

计算机与社会 · 计算机科学 2025-05-27 Smitha Kumar , Michael A. Lones , Manuel Maarek , Hind Zantout

Modern Large Language Models, such as the LLaMA, Qwen and DeepSeek series, predominantly adopt the Pre-LayerNorm (Pre-LN) Transformer architecture. While being stable during pretraining and scalable to large model sizes, Pre-LN suffers from…

The rise of large language models (LLMs) has revolutionized the way that we interact with artificial intelligence systems through natural language. However, LLMs often misinterpret user queries because of their uncertain intention, leading…

计算与语言 · 计算机科学 2024-02-07 Jing-Cheng Pang , Heng-Bo Fan , Pengyuan Wang , Jia-Hao Xiao , Nan Tang , Si-Hang Yang , Chengxing Jia , Sheng-Jun Huang , Yang Yu

Recurrent neural networks for language models like long short-term memory (LSTM) have been utilized as a tool for modeling and predicting long term dynamics of complex stochastic molecular systems. Recently successful examples on learning…

人工智能 · 计算机科学 2021-07-15 Wenqi Zeng , Siqin Cao , Xuhui Huang , Yuan Yao