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High dropout rates in tertiary education expose a lack of efficiency that causes frustration of expectations and financial waste. Predicting students at risk is not enough to avoid student dropout. Usually, an appropriate aid action must be…

机器学习 · 计算机科学 2022-02-01 Leandro M. de Lima , Renato A. Krohling

Although diffusion models have achieved strong results in decision-making tasks, their slow inference speed remains a key limitation. While consistency models offer a potential solution, existing applications to decision-making either…

机器学习 · 计算机科学 2026-02-09 Xintong Duan , Yutong He , Fahim Tajwar , Ruslan Salakhutdinov , J. Zico Kolter , Jeff Schneider

Efficient traffic control (TSC) is essential for urban mobility, but traditional systems struggle to handle the complexity of real-world traffic. Multi-agent Reinforcement Learning (MARL) offers adaptive solutions, but online MARL requires…

人工智能 · 计算机科学 2025-03-19 Rohit Bokade , Xiaoning Jin

Diffusion policies have shown promise in learning complex behaviors from demonstrations, particularly for tasks requiring precise control and long-term planning. However, they face challenges in robustness when encountering distribution…

机器学习 · 计算机科学 2025-02-24 Mingyang Sun , Pengxiang Ding , Weinan Zhang , Donglin Wang

This paper proposes a data-driven method for learning convergent control policies from offline data using Contraction theory. Contraction theory enables constructing a policy that makes the closed-loop system trajectories inherently…

机器学习 · 计算机科学 2022-02-04 Navid Rezazadeh , Maxwell Kolarich , Solmaz S. Kia , Negar Mehr

Conditional decision generation with diffusion models has shown powerful competitiveness in reinforcement learning (RL). Recent studies reveal the relation between energy-function-guidance diffusion models and constrained RL problems. The…

机器学习 · 计算机科学 2025-05-06 Jifeng Hu , Sili Huang , Zhejian Yang , Shengchao Hu , Li Shen , Hechang Chen , Lichao Sun , Yi Chang , Dacheng Tao

Diffusion-based robot navigation policies trained on large-scale imitation learning datasets, can generate multi-modal trajectories directly from the robot's visual observations, bypassing the traditional localization-mapping-planning…

机器人学 · 计算机科学 2026-03-16 Junhe Sheng , Ruofei Bai , Kuan Xu , Ruimeng Liu , Jie Chen , Shenghai Yuan , Wei-Yun Yau , Lihua Xie

In reinforcement learning (RL), offline learning decoupled learning from data collection and is useful in dealing with exploration-exploitation tradeoff and enables data reuse in many applications. In this work, we study two offline…

机器学习 · 计算机科学 2022-02-08 Jing Dong , Xin T. Tong

As foundation models grow in size, fine-tuning them becomes increasingly expensive. While GPU spot instances offer a low-cost alternative to on-demand resources, their volatile prices and availability make deadline-aware scheduling…

分布式、并行与集群计算 · 计算机科学 2025-12-25 Linggao Kong , Yuedong Xu , Lei Jiao , Chuan Xu

Offline reinforcement learning (RL) learns policies from fixed datasets without online interactions, but suffers from distribution shift, causing inaccurate evaluation and overestimation of out-of-distribution (OOD) actions. Existing…

机器学习 · 计算机科学 2025-10-07 Xuyang Chen , Keyu Yan , Wenhan Cao , Lin Zhao

Optimizing complex systems, from discovering therapeutic drugs to designing high-performance materials, remains a fundamental challenge across science and engineering, as the underlying rules are often unknown and costly to evaluate.…

机器学习 · 计算机科学 2026-01-13 Tailin Zhou , Zhilin Chen , Wenlong Lyu , Zhitang Chen , Danny H. K. Tsang , Jun Zhang

One of the main challenges in Grid systems is designing an adaptive, scalable, and model-independent method for job scheduling to achieve a desirable degree of load balancing and system efficiency. Centralized job scheduling methods have…

分布式、并行与集群计算 · 计算机科学 2016-09-13 Milad Moradi

Diffusion Transformers have become a dominant paradigm in visual generation, yet their low inference efficiency remains a key bottleneck hindering further advancement. Among common training-free techniques, caching offers high acceleration…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Tong Shao , Yusen Fu , Guoying Sun , Jingde Kong , Zhuotao Tian , Jingyong Su

Maintenance scheduling is a complex decision-making problem in the production domain, where a number of maintenance tasks and resources has to be assigned and scheduled to production entities in order to prevent unplanned production…

机器学习 · 计算机科学 2021-08-30 Raphael Lamprecht , Ferdinand Wurst , Marco F. Huber

This paper extends off-policy reinforcement learning to the multi-agent case in which a set of networked agents communicating with their neighbors according to a time-varying graph collaboratively evaluates and improves a target policy…

机器学习 · 计算机科学 2019-11-20 Wesley Suttle , Zhuoran Yang , Kaiqing Zhang , Zhaoran Wang , Tamer Basar , Ji Liu

The training of autonomous agents often requires expensive and unsafe trial-and-error interactions with the environment. Nowadays several data sets containing recorded experiences of intelligent agents performing various tasks, spanning…

机器学习 · 计算机科学 2020-10-06 Giorgio Angelotti , Nicolas Drougard , Caroline Ponzoni Carvalho Chanel

Pre-training with offline data and online fine-tuning using reinforcement learning is a promising strategy for learning control policies by leveraging the best of both worlds in terms of sample efficiency and performance. One natural…

人工智能 · 计算机科学 2025-09-01 Haichao Zhang , We Xu , Haonan Yu

Offline reinforcement learning (RL) recovers the optimal policy $\pi$ given historical observations of an agent. In practice, $\pi$ is modeled as a weighted version of the agent's behavior policy $\mu$, using a weight function $w$ working…

机器学习 · 计算机科学 2025-12-24 Augusto Tagle , Javier Ruiz-del-Solar , Felipe Tobar

Model-based offline reinforcement learning (RL), which builds a supervised transition model with logging dataset to avoid costly interactions with the online environment, has been a promising approach for offline policy optimization. As the…

机器学习 · 计算机科学 2023-09-06 Junming Yang , Xingguo Chen , Shengyuan Wang , Bolei Zhang

Mobile notification systems have taken a major role in driving and maintaining user engagement for online platforms. They are interesting recommender systems to machine learning practitioners with more sequential and long-term feedback…

机器学习 · 计算机科学 2022-02-09 Yiping Yuan , Ajith Muralidharan , Preetam Nandy , Miao Cheng , Prakruthi Prabhakar