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In this paper, the problem of optimizing the deployment of unmanned aerial vehicles (UAVs) equipped with visible light communication (VLC) capabilities is studied. In the studied model, the UAVs can simultaneously provide communications and…

Signal Processing · Electrical Eng. & Systems 2019-09-18 Yining Wang , Mingzhe Chen , Zhaohui Yang , Xue Hao , Tao Luo , Walid Saad

The integration of Large Language Models (LLMs) into aviation safety decision-making represents a significant technological advancement, yet their standalone application poses critical risks due to inherent limitations such as factual…

Software Engineering · Computer Science 2026-04-16 Anirudh Iyengar , Alisa Tiselska , Dumindu Samaraweera , Hong Liu

Learning world models can teach an agent how the world works in an unsupervised manner. Even though it can be viewed as a special case of sequence modeling, progress for scaling world models on robotic applications such as autonomous…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Lunjun Zhang , Yuwen Xiong , Ze Yang , Sergio Casas , Rui Hu , Raquel Urtasun

Detecting content that contradicts or is unsupported by a given source text is a critical challenge for the safe deployment of generative language models. We introduce HALT-RAG, a post-hoc verification system designed to identify…

Computation and Language · Computer Science 2025-09-10 Saumya Goswami , Siddharth Kurra

Language Model (LM)-based Text-to-Speech (TTS) systems often generate hallucinated speech that deviates from input text. Existing mitigation strategies either demand excessive training resources or introduce significant inference latency.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-08 Chenlin Liu , Minghui Fang , Patrick Zhang , Wei Zhou , Jie Gao , Jiqing Han

Increasing traffic demands, higher levels of automation, and communication enhancements provide novel design opportunities for future air traffic controllers (ATCs). This article presents a novel deep reinforcement learning (DRL) controller…

Machine Learning · Computer Science 2022-11-28 Lei Wang , Hongyu Yang , Yi Lin , Suwan Yin , Yuankai Wu

In this paper, we aim to explore the use of uplink semantic communications with the assistance of UAV in order to improve data collection effiicency for metaverse users in remote areas. To reduce the time for uplink data collection while…

Networking and Internet Architecture · Computer Science 2023-12-04 Peiyuan Si , Jun Zhao , Kwok-Yan Lam , Qing Yang

Recent advances in deep learning have witnessed many successful unsupervised image-to-image translation models that learn correspondences between two visual domains without paired data. However, it is still a great challenge to build robust…

Computer Vision and Pattern Recognition · Computer Science 2023-06-08 Shuai Yang , Liming Jiang , Ziwei Liu , Chen Change Loy

To prolong the lifetime of the unmanned aerial vehicles (UAVs), the UAVs need to fulfill their missions in the shortest possible time. In addition to this requirement, in many applications, the UAVs require a reliable internet connection…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Behzad Khamidehi , Elvino S. Sousa

Training robots to navigate diverse environments is a challenging problem as it involves the confluence of several different perception tasks such as mapping and localization, followed by optimal path-planning and control. Recently released…

Robotics · Computer Science 2021-01-07 Kaushik Balakrishnan , Punarjay Chakravarty , Shubham Shrivastava

In contrast to terrestrial wireless networks, dynamic Unmanned Aerial Vehicle (UAV) networks are susceptible to unexpected link failures arising from UAV breakdowns or the depletion of its batteries. Drastic user rate fluctuations and sum…

Networking and Internet Architecture · Computer Science 2024-02-28 Linghui Ge , Xiao Liang , Hua Zhang , Peihao Dong , Jianxin Liao , Jingyu Wang

Due to the rapid developments in synchronized measurement technologies, there exist enormous opportunities to attenuate disturbances in future power grids with high penetration of renewables and complex load demands. To that end, this paper…

Systems and Control · Electrical Eng. & Systems 2023-10-03 Muhammad Nadeem , MirSaleh Bahavarnia , Ahmad F. Taha

Achieving robust safety alignment in large language models (LLMs) while preserving their utility remains a fundamental challenge. Existing approaches often struggle to balance comprehensive safety with fine-grained controllability at the…

Artificial Intelligence · Computer Science 2025-09-25 Huizhen Shu , Xuying Li , Zhuo Li

The Decision Transformer (DT) has established a powerful sequence modeling approach to offline reinforcement learning. It conditions its action predictions on Return-to-Go (RTG), using it both to distinguish trajectory quality during…

Artificial Intelligence · Computer Science 2026-01-23 Yongyi Wang , Hanyu Liu , Lingfeng Li , Bozhou Chen , Ang Li , Qirui Zheng , Xionghui Yang , Wenxin Li

Reinforcement learning methods as a promising technique have achieved superior results in the motion planning of free-floating space robots. However, due to the increase in planning dimension and the intensification of system dynamics…

Robotics · Computer Science 2022-09-07 Yuxue Cao , Shengjie Wang , Xiang Zheng , Wenke Ma , Xinru Xie , Lei Liu

Teleoperation is crucial for hazardous environment operations and serves as a key tool for collecting expert demonstrations in robot learning. However, existing methods face robotic hardware dependency and control frequency mismatches…

Robotics · Computer Science 2025-04-29 Shengjian Fang , Yixuan Zhou , Yu Zheng , Pengyu Jiang , Siyuan Liu , Hesheng Wang

An autonomous navigation with proven collision avoidance in unknown and dynamic environments is still a challenge, particularly when there are moving obstacles. A popular approach to collision avoidance in the face of moving obstacles is…

Robotics · Computer Science 2016-09-23 Rafael Rodrigues da Silva , Samuel Silva , Grigoriy Dubrovskiy , Hai Lin

Unmanned Aerial Vehicles (UAVs) are increasingly essential in various fields such as surveillance, reconnaissance, and telecommunications. This study aims to develop a learning algorithm for the path planning of UAV wireless communication…

Machine Learning · Computer Science 2025-01-20 Joseanne Viana , Boris Galkin , Lester Ho , Holger Claussen

Unmanned aerial vehicle (UAV)-assisted data collection has been emerging as a prominent application due to its flexibility, mobility, and low operational cost. However, under the dynamic and uncertainty of IoT data collection and energy…

Networking and Internet Architecture · Computer Science 2021-06-22 Nam H. Chu , Dinh Thai Hoang , Diep N. Nguyen , Nguyen Van Huynh , Eryk Dutkiewicz

Ensuring safety in autonomous driving (AD) remains a significant challenge, especially in highly dynamic and complex traffic environments where diverse agents interact and unexpected hazards frequently emerge. Traditional reinforcement…

Robotics · Computer Science 2025-10-14 Dong Hu , Fenqing Hu , Lidong Yang , Chao Huang