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Reinforcement learning (RL) applications, where an agent can simply learn optimal behaviors by interacting with the environment, are quickly gaining tremendous success in a wide variety of applications from controlling simple pendulums to…

机器学习 · 计算机科学 2022-01-28 Mariam Kiran , Melis Ozyildirim

Pretrained on large-scale and diverse datasets, VLA models demonstrate strong generalization and adaptability as general-purpose robotic policies. However, Supervised Fine-Tuning (SFT), which serves as the primary mechanism for adapting…

机器人学 · 计算机科学 2026-05-19 Yuan Liu , Haoran Li , Shuai Tian , Yuxing Qin , Yuhui Chen , Yupeng Zheng , Yongzhen Huang , Dongbin Zhao

Transformers have become the cornerstone of modern large-scale language models, but their reliance on softmax attention poses a computational bottleneck at both training and inference. Recurrent models offer high efficiency, but compressing…

计算与语言 · 计算机科学 2025-11-20 Xiuying Wei , Anunay Yadav , Razvan Pascanu , Caglar Gulcehre

Generative information retrieval (GenIR) consolidates retrieval into a single neural model that decodes document identifiers (docids) directly from queries. While this model-as-index paradigm offers architectural simplicity, it is poorly…

信息检索 · 计算机科学 2026-04-28 Kidist Amde Mekonnen , Yubao Tang , Maarten de Rijke

Adversarial training (AT) with projected gradient descent is the most popular method to improve model robustness under adversarial attacks. However, computational overheads become prohibitively large when AT is applied to large backbone…

机器学习 · 计算机科学 2025-08-26 Quanwei Wu , Jun Guo , Wei Wang , Yi Wang

Reinforcement Learning from Human Feedback (RLHF) has emerged as a important paradigm for aligning large language models (LLMs) with human preferences during post-training. This framework typically involves two stages: first, training a…

机器学习 · 计算机科学 2025-04-08 Wenyuan Xu , Xiaochen Zuo , Chao Xin , Yu Yue , Lin Yan , Yonghui Wu

Learning rate configuration is a fundamental aspect of modern deep learning. The prevailing practice of applying a uniform learning rate across all layers overlooks the structural heterogeneity of Transformers, potentially limiting their…

机器学习 · 计算机科学 2026-05-28 Di He , Songjun Tu , Keyu Wang , Lu Yin , Shiwei Liu

Trajectory prediction (TP) is crucial for ensuring safety and efficiency in modern air traffic management systems. It is, for example, a core component of conflict detection and resolution tools, arrival sequencing algorithms, capacity…

计算工程、金融与科学 · 计算机科学 2026-01-21 Nick Pepper , Marc Thomas , Zack Xuereb Conti

Scalability has driven recent advances in generative modeling, yet its principles remain underexplored for adversarial learning. We investigate the scalability of Generative Adversarial Networks (GANs) through two design choices that have…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Sangeek Hyun , MinKyu Lee , Jae-Pil Heo

Temporal action detection (TAD) is challenging, yet fundamental for real-world video applications. Recently, DETR-based models for TAD have been prevailing thanks to their unique benefits. However, transformers demand a huge dataset, and…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Jihwan Kim , Miso Lee , Jae-Pil Heo

Recent studies on long-term time series forecasting have shown that simple linear models and MLP-based predictors can achieve strong performance without increasingly complex architectures. However, many competitive baselines still rely on…

机器学习 · 计算机科学 2026-05-14 Zhenan Yu , Guangxin Jiang , Jin Yang

In this work, we address the challenge of adaptive pediatric Left Ventricular Ejection Fraction (LVEF) assessment. While Test-time Training (TTT) approaches show promise for this task, they suffer from two significant limitations. Existing…

计算机视觉与模式识别 · 计算机科学 2025-03-07 Jie Liu , Tiexin Qin , Hui Liu , Yilei Shi , Lichao Mou , Xiao Xiang Zhu , Shiqi Wang , Haoliang Li

Routing of the nets in Field Programmable Gate Array (FPGA) design flow is one of the most time consuming steps. Although Versatile Place and Route (VPR), which is a commonly used algorithm for this purpose, routes effectively, it is slow…

分布式、并行与集群计算 · 计算机科学 2020-10-23 Rohit Agrawal , Kapil Ahuja , Dhaarna Maheshwari , Akash Kumar

The "pre-training $\rightarrow$ downstream adaptation" presents both new opportunities and challenges for Continual Learning (CL). Although the recent state-of-the-art in CL is achieved through Parameter-Efficient-Tuning (PET) adaptation…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Qiankun Gao , Chen Zhao , Yifan Sun , Teng Xi , Gang Zhang , Bernard Ghanem , Jian Zhang

Large-scale LLM pretraining now runs across $10^5$--$10^6$ accelerators, making failures routine and elasticity mandatory. We posit that an elastic-native training system must jointly deliver (i) parameter consistency, (ii) low mean time to…

We explore how iterative revising a chain of thoughts with the help of information retrieval significantly improves large language models' reasoning and generation ability in long-horizon generation tasks, while hugely mitigating…

计算与语言 · 计算机科学 2024-03-11 Zihao Wang , Anji Liu , Haowei Lin , Jiaqi Li , Xiaojian Ma , Yitao Liang

Due to the continuous emergence of new data, version updates have become an indispensable requirement for Large Language Models (LLMs). The training paradigms for version updates of LLMs include pre-training from scratch (PTFS) and…

计算与语言 · 计算机科学 2024-10-08 Zhihao Wang , Shiyu Liu , Jianheng Huang , Zheng Wang , Yixuan Liao , Xiaoxin Chen , Junfeng Yao , Jinsong Su

This paper introduces an enhanced RWKV architecture with adaptive temporal gating mechanisms for improved long-context language modeling. We propose two principal innovations: (1) a position-aware convolutional shift operator that captures…

计算与语言 · 计算机科学 2025-02-25 Xinghan Pan

Retrieve-augmented generation (RAG) frameworks have emerged as a promising solution to multi-hop question answering(QA) tasks since it enables large language models (LLMs) to incorporate external knowledge and mitigate their inherent…

计算与语言 · 计算机科学 2024-12-20 Xiangsen Chen , Xuming Hu , Nan Tang

Modern machine learning models are typically trained using Stochastic Gradient Descent (SGD) on massively parallel computing resources such as GPUs. Increasing mini-batch size is a simple and direct way to utilize the parallel computing…

机器学习 · 统计学 2019-03-05 Siyuan Ma , Mikhail Belkin