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With the rapid evolution of GPU architectures, the heterogeneity of model training infrastructures is steadily increasing. In such environments, effectively utilizing all available heterogeneous accelerators becomes critical for distributed…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-05 Antian Liang , Zhigang Zhao , Kai Zhang , Xuri Shi , Chuantao Li , Chunxiao Wang , Zhenying He , Yinan Jing , X. Sean Wang

Constructing datasets representative of the target domain is essential for training effective machine learning models. Active learning (AL) is a promising method that iteratively extends training data to enhance model performance while…

Multimodal learning (MML) aims to jointly exploit the common priors of different modalities to compensate for their inherent limitations. However, existing MML methods often optimize a uniform objective for different modalities, leading to…

Machine Learning · Computer Science 2022-11-15 Yunfeng Fan , Wenchao Xu , Haozhao Wang , Junxiao Wang , Song Guo

Unmanned aerial vehicles (UAVs) are increasingly used to support time-critical medical supply delivery, providing rapid and flexible logistics during emergencies and resource shortages. However, effective deployment of UAV fleets requires…

Machine Learning · Computer Science 2026-03-12 Islam Guven , Mehmet Parlak

Large language models (LLMs) have shown strong reasoning capabilities when fine-tuned with reinforcement learning (RL). However, such methods require extensive data and compute, making them impractical under many realistic training budgets.…

Machine Learning · Computer Science 2026-04-17 Dai Do , Manh Nguyen , Svetha Venkatesh , Hung Le

Maximizing training throughput and cost-efficiency of RL for LLMs is essential to democratize this advanced technique. One promising but challenging approach is to deploy such a computational workflow over heterogeneous GPUs. Unlike…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-04 Ran Yan , Youhe Jiang , Tianyuan Wu , Jiaxuan Gao , Zhiyu Mei , Wei Fu , Haohui Mai , Wei Wang , Yi Wu , Binhang Yuan

Frontier models increasingly adopt Mixture-of-Experts (MoE) architectures to achieve large-model performance at reduced cost. However, training MoE models on HPC platforms is hindered by large memory footprints, frequent large-scale…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-07 Sajal Dash , Feiyi Wang

Although Multi-Agent Reinforcement Learning (MARL) is effective for complex multi-robot tasks, it suffers from low sample efficiency and requires iterative manual reward tuning. Large Language Models (LLMs) have shown promise in…

Robotics · Computer Science 2025-06-04 Guobin Zhu , Rui Zhou , Wenkang Ji , Shiyu Zhao

With the increasing popularity of robotics in industrial control and autonomous driving, deep reinforcement learning (DRL) raises the attention of various fields. However, DRL computation on the modern powerful GPU platform is still…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-06-20 Yuke Wang , Boyuan Feng , Zheng Wang , Tong Geng , Ang Li , Yufei Ding

Training models on spatio-temporal (ST) data poses an open problem due to the complicated and diverse nature of the data itself, and it is challenging to ensure the model's performance directly trained on the original ST data. While…

Machine Learning · Computer Science 2024-09-17 Du Yin , Jinliang Deng , Shuang Ao , Zechen Li , Hao Xue , Arian Prabowo , Renhe Jiang , Xuan Song , Flora Salim

The deployment of multi-agent systems in dynamic, adversarial environments like robotic soccer necessitates real-time decision-making, sophisticated cooperation, and scalable algorithms to avoid the curse of dimensionality. While…

Robotics · Computer Science 2025-12-04 Aya Taourirte , Md Sohag Mia

Modern LLM serving systems confront inefficient GPU utilization due to the fundamental mismatch between compute-intensive prefill and memory-bound decode phases. While current practices attempt to address this by organizing these phases…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-29 Zejia Lin , Hongxin Xu , Guanyi Chen , Zhiguang Chen , Yutong Lu , Xianwei Zhang

Training LLMs in distributed environments presents significant challenges due to the complexity of model execution, deployment systems, and the vast space of configurable strategies. Although various optimization techniques exist, achieving…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-15 Mingyu Liang , Hiwot Tadese Kassa , Wenyin Fu , Brian Coutinho , Louis Feng , Christina Delimitrou

Multimodal language models now integrate text, audio, and video for unified reasoning. Yet existing RL post-training pipelines treat all input signals as equally relevant, ignoring which modalities each task actually requires. This…

Artificial Intelligence · Computer Science 2026-02-13 Nikhil Verma , Minjung Kim , JooYoung Yoo , Kyung-Min Jin , Manasa Bharadwaj , Kevin Ferreira , Ko Keun Kim , Youngjoon Kim

Using multiple spatial modalities has been proven helpful in improving semantic segmentation performance. However, there are several real-world challenges that have yet to be addressed: (a) improving label efficiency and (b) enhancing…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Harsh Maheshwari , Yen-Cheng Liu , Zsolt Kira

Large language models (LLMs) have demonstrated remarkable performance, and organizations are racing to serve LLMs of varying sizes as endpoints for use-cases like chat, programming and search. However, efficiently serving multiple LLMs…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-06-14 Jiangfei Duan , Runyu Lu , Haojie Duanmu , Xiuhong Li , Xingcheng Zhang , Dahua Lin , Ion Stoica , Hao Zhang

Multi-modal large language models (MLLMs) have emerged as a transformative approach for aligning visual and textual understanding. They typically require extremely high computational resources (e.g., thousands of GPUs) for training to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Zelin Peng , Zhengqin Xu , Qingyang Liu , Xiaokang Yang , Wei Shen

Multi-modal learning, which focuses on utilizing various modalities to improve the performance of a model, is widely used in video recognition. While traditional multi-modal learning offers excellent recognition results, its computational…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Rameswar Panda , Chun-Fu Chen , Quanfu Fan , Ximeng Sun , Kate Saenko , Aude Oliva , Rogerio Feris

Multimodal large language models (MLLMs), such as GPT-4o, are garnering significant attention. During the exploration of MLLM training, we identified Modality Composition Incoherence, a phenomenon that the proportion of a certain modality…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-13 Yijie Zheng , Bangjun Xiao , Lei Shi , Xiaoyang Li , Faming Wu , Tianyu Li , Xuefeng Xiao , Yang Zhang , Yuxuan Wang , Shouda Liu

Multimodal large language models (MLLMs) extend the capabilities of large language models (LLMs) by combining heterogeneous model architectures to handle diverse modalities like images and audio. However, this inherent heterogeneity in MLLM…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-26 Insu Jang , Runyu Lu , Nikhil Bansal , Ang Chen , Mosharaf Chowdhury