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Reinforcement Learning-based Recommender Systems (RLRS) have shown promise across a spectrum of applications, from e-commerce platforms to streaming services. Yet, they grapple with challenges, notably in crafting reward functions and…

Information Retrieval · Computer Science 2024-03-27 Siyu Wang , Xiaocong Chen , Lina Yao

Modern communication networks have become very complicated and highly dynamic, which makes them hard to model, predict and control. In this paper, we develop a novel experience-driven approach that can learn to well control a communication…

Networking and Internet Architecture · Computer Science 2018-01-18 Zhiyuan Xu , Jian Tang , Jingsong Meng , Weiyi Zhang , Yanzhi Wang , Chi Harold Liu , Dejun Yang

Reinforcement learning (RL) and trajectory optimization (TO) present strong complementary advantages. On one hand, RL approaches are able to learn global control policies directly from data, but generally require large sample sizes to…

Robotics · Computer Science 2023-02-17 Quentin Le Lidec , Wilson Jallet , Ivan Laptev , Cordelia Schmid , Justin Carpentier

The combination of deep reinforcement learning (DRL) with ensemble methods has been proved to be highly effective in addressing complex sequential decision-making problems. This success can be primarily attributed to the utilization of…

Machine Learning · Computer Science 2023-10-18 Chao Li , Chen Gong , Qiang He , Xinwen Hou

The traveling purchaser problem (TPP) is an important combinatorial optimization problem with broad applications. Due to the coupling between routing and purchasing, existing works on TPPs commonly address route construction and purchase…

Optimization and Control · Mathematics 2025-07-03 Haofeng Yuan , Rongping Zhu , Wanlu Yang , Shiji Song , Keyou You , Wei Fan , C. L. Philip Chen

Reinforcement learning (RL)-based tractography is a competitive alternative to machine learning and classical tractography algorithms due to its high anatomical accuracy obtained without the need for any annotated data. However, the reward…

Machine Learning · Computer Science 2024-03-27 Antoine Théberge , Maxime Descoteaux , Pierre-Marc Jodoin

In this paper, we investigate offline reinforcement learning (RL) with the goal of training a single robust policy that generalizes effectively across environments with unseen dynamics. We propose a novel approach, Trajectory Encoding…

Machine Learning · Computer Science 2025-01-28 Batıkan Bora Ormancı , Phillip Swazinna , Steffen Udluft , Thomas A. Runkler

Neural-based multi-task learning (MTL) has gained significant improvement, and it has been successfully applied to recommendation system (RS). Recent deep MTL methods for RS (e.g. MMoE, PLE) focus on designing soft gating-based…

Artificial Intelligence · Computer Science 2023-08-21 Qi Liu , Zhilong Zhou , Gangwei Jiang , Tiezheng Ge , Defu Lian

Spatiotemporal Traffic Data (STTD) measures the complex dynamical behaviors of the multiscale transportation system. Existing methods aim to reconstruct STTD using low-dimensional models. However, they are limited to data-specific…

Machine Learning · Computer Science 2024-10-25 Tong Nie , Guoyang Qin , Wei Ma , Jian Sun

Deep Reinforcement Learning (DRL) emerges as a prime solution for Unmanned Aerial Vehicle (UAV) trajectory planning, offering proficiency in navigating high-dimensional spaces, adaptability to dynamic environments, and making sequential…

Signal Processing · Electrical Eng. & Systems 2024-05-17 Chenrui Sun , Gianluca Fontanesi , Swarna Bindu Chetty , Xuanyu Liang , Berk Canberk , Hamed Ahmadi

Reinforcement learning (RL) trains an agent from experiences interacting with the environment. In scenarios where online interactions are impractical, offline RL, which trains the agent using pre-collected datasets, has become popular.…

Machine Learning · Computer Science 2024-09-04 Chen Gong , Kecen Li , Jin Yao , Tianhao Wang

Recent advances in high-fidelity simulators have enabled closed-loop training of autonomous driving agents, potentially solving the distribution shift in training v.s. deployment and allowing training to be scaled both safely and cheaply.…

Robotics · Computer Science 2023-06-29 Chris Zhang , Runsheng Guo , Wenyuan Zeng , Yuwen Xiong , Binbin Dai , Rui Hu , Mengye Ren , Raquel Urtasun

Trajectory data combines the complexities of time series, spatial data, and (sometimes irrational) movement behavior. As data availability and computing power have increased, so has the popularity of deep learning from trajectory data. This…

Machine Learning · Computer Science 2025-04-02 Anita Graser , Anahid Jalali , Jasmin Lampert , Axel Weißenfeld , Krzysztof Janowicz

The rising successes of RL are propelled by combining smart algorithmic strategies and deep architectures to optimize the distribution of returns and visitations over the state-action space. A quantitative framework to compare the learning…

Machine Learning · Computer Science 2024-10-17 Reabetswe M. Nkhumise , Debabrota Basu , Tony J. Prescott , Aditya Gilra

The inherent capabilities of a language model (LM) and the reasoning strategies it employs jointly determine its performance in reasoning tasks. While test-time scaling is regarded as an effective approach to tackling complex reasoning…

Computation and Language · Computer Science 2025-05-27 Zhihong Pan , Kai Zhang , Yuze Zhao , Yupeng Han

Human trajectory prediction is a practical task of predicting the future positions of pedestrians on the road, which typically covers all temporal ranges from short-term to long-term within a trajectory. However, existing works attempt to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Xiaotong Lin , Tianming Liang , Jianhuang Lai , Jian-Fang Hu

Trajectory planning is vital for autonomous driving, ensuring safe and efficient navigation in complex environments. While recent learning-based methods, particularly reinforcement learning (RL), have shown promise in specific scenarios, RL…

Robotics · Computer Science 2025-03-25 Dongkun Zhang , Jiaming Liang , Ke Guo , Sha Lu , Qi Wang , Rong Xiong , Zhenwei Miao , Yue Wang

For effective real-world deployment, robots should adapt to human preferences, such as balancing distance, time, and safety in delivery routing. Active preference learning (APL) learns human reward functions by presenting trajectories for…

Robotics · Computer Science 2025-07-09 Yi-Shiuan Tung , Bradley Hayes , Alessandro Roncone

Deep reinforcement learning (DRL) has been increasingly employed to handle the dynamic and complex resource management in network slicing. The deployment of DRL policies in real networks, however, is complicated by heterogeneous cell…

Networking and Internet Architecture · Computer Science 2023-06-26 Tianlun Hu , Qi Liao , Qiang Liu , Georg Carle

In urban driving scenarios, forecasting future trajectories of surrounding vehicles is of paramount importance. While several approaches for the problem have been proposed, the best-performing ones tend to require extremely detailed input…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Shashank Srikanth , Junaid Ahmed Ansari , Karnik Ram R , Sarthak Sharma , Krishna Murthy J. , Madhava Krishna K