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We compare the long-term, steady-state performance of a variant of the standard Dynamic Alternative Routing (DAR) technique commonly used in telephone and ATM networks, to the performance of a path-selection algorithm based on the…

概率论 · 数学 2007-05-23 Aris Anagnostopoulos , Ioannis Kontoyiannis , Eli Upfal

Temporal action localization aims to predict the boundary and category of each action instance in untrimmed long videos. Most of previous methods based on anchors or proposals neglect the global-local context interaction in entire video…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Yizheng Ouyang , Tianjin Zhang , Weibo Gu , Hongfa Wang

Maritime autonomous transportation has played a crucial role in the globalization of the world economy. Deep Reinforcement Learning (DRL) has been applied to automatic path planning to simulate vessel collision avoidance situations in open…

人工智能 · 计算机科学 2021-06-29 Nader Zare , Bruno Brandoli , Mahtab Sarvmaili , Amilcar Soares , Stan Matwin

Domain randomization (DR), which entails training a policy with randomized dynamics, has proven to be a simple yet effective algorithm for reducing the gap between simulation and the real world. However, DR often requires careful tuning of…

In this paper we consider the problem of obtaining sharp bounds for the performance of temporal difference (TD) methods with linear function approximation for policy evaluation in discounted Markov decision processes. We show that a simple…

机器学习 · 统计学 2024-06-18 Sergey Samsonov , Daniil Tiapkin , Alexey Naumov , Eric Moulines

This research presents a novel framework that combines traditional Optical Time-Domain Reflectometer (OTDR) signal analysis with machine learning to localize and classify fiber optic faults in rural broadband infrastructures. The proposed…

网络与互联网体系结构 · 计算机科学 2025-06-04 Sabab Al Farabi

Long-horizon robotic manipulation remains challenging for reinforcement learning (RL) because sparse rewards provide limited guidance for credit assignment. Practical policy improvement thus relies on richer intermediate supervision, such…

机器人学 · 计算机科学 2026-04-22 Yiming Mao , Zixi Yu , Weixin Mao , Yinhao Li , Qirui Hu , Zihan Lan , Minzhao Zhu , Hua Chen

Accurate spatial-temporal (ST) prediction for dynamic systems, such as urban mobility and weather patterns, is crucial but hindered by complex ST correlations and the challenge of concurrently modeling long-term trends with short-term…

机器学习 · 计算机科学 2025-07-15 Sina Ehsani , Fenglian Pan , Qingpei Hu , Jian Liu

Temporal action detection is a fundamental yet challenging task in video understanding. Many of the state-of-the-art methods predict the boundaries of action instances based on predetermined anchors akin to the two-dimensional object…

计算机视觉与模式识别 · 计算机科学 2019-10-21 Yiping Tang , Chuang Niu , Minghao Dong , Shenghan Ren , Jimin Liang

Despite the increasing adoption of Deep Reinforcement Learning (DRL) for Autonomous Surface Vehicles (ASVs), there still remain challenges limiting real-world deployment. In this paper, we first integrate buoyancy and hydrodynamics models…

机器人学 · 计算机科学 2024-07-12 Luis F W Batista , Junghwan Ro , Antoine Richard , Pete Schroepfer , Seth Hutchinson , Cedric Pradalier

This paper proposes a dynamic regression (DR) framework that enhances existing deep spatiotemporal models by incorporating structured learning for the error process in traffic forecasting. The framework relaxes the assumption of time…

机器学习 · 计算机科学 2025-04-09 Vincent Zhihao Zheng , Seongjin Choi , Lijun Sun

In modern radar systems, precise target localization using azimuth and velocity estimation is paramount. Traditional unbiased estimation methods have utilized gradient descent algorithms to reach the theoretical limits of the Cramer Rao…

信号处理 · 电气工程与系统科学 2024-04-24 Shyam Venkatasubramanian , Sandeep Gogineni , Bosung Kang , Muralidhar Rangaswamy

Video Moment Retrieval (MR) aims to localize moments within a video based on a given natural language query. Given the prevalent use of platforms like YouTube for information retrieval, the demand for MR techniques is significantly growing.…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Seojeong Park , Jiho Choi , Kyungjune Baek , Hyunjung Shim

Temporal Action Detection (TAD) aims to identify the action boundaries and the corresponding category within untrimmed videos. Inspired by the success of DETR in object detection, several methods have adapted the query-based framework to…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Yuhan Zhu , Guozhen Zhang , Jing Tan , Gangshan Wu , Limin Wang

Detection Transformers (DETR) have recently set new benchmarks in object detection. However, their performance in detecting rotated objects lags behind established oriented object detectors. Our analysis identifies a key observation: the…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Hakjin Lee , MinKi Song , Jamyoung Koo , Junghoon Seo

Visual-inertial localization is a key problem in computer vision and robotics applications such as virtual reality, self-driving cars, and aerial vehicles. The goal is to estimate an accurate pose of an object when either the environment or…

计算机视觉与模式识别 · 计算机科学 2023-08-07 Felix Ott , Nisha Lakshmana Raichur , David Rügamer , Tobias Feigl , Heiko Neumann , Bernd Bischl , Christopher Mutschler

Abnormal Human Behavior Detection (AHBD) under special scenarios is becoming increasingly crucial. While YOLO-based detection methods excel in real-time tasks, they remain hindered by challenges including small objects, task conflicts, and…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Xinyi Yin , Wenbo Yuan , Xuecheng Wu , Liangyu Fu , Danlei Huang

In this paper, we study the dynamics of temporal difference learning with neural network-based value function approximation over a general state space, namely, \emph{Neural TD learning}. We consider two practically used algorithms,…

机器学习 · 计算机科学 2021-08-09 Semih Cayci , Siddhartha Satpathi , Niao He , R. Srikant

Deep reinforcement learning (DRL) finds extensive application in autonomous drone navigation within complex, high-risk environments. However, its practical deployment faces a safety-exploration dilemma: soft penalty mechanisms encourage…

机器人学 · 计算机科学 2026-05-04 Wentao Chen , Jingtang Chen , Mingjian Fu , Tiantian Li , Youfeng Su , Wenxi Liu , Yuanlong Yu

In this paper, we study the application of DRL algorithms in the context of local navigation problems, in which a robot moves towards a goal location in unknown and cluttered workspaces equipped only with limited-range exteroceptive…

机器人学 · 计算机科学 2025-06-17 Victor R. F. Miranda , Armando A. Neto , Gustavo M. Freitas , Leonardo A. Mozelli