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This paper introduces a data-based moving horizon estimation (MHE) scheme for linear time-invariant discrete-time systems. The scheme solely relies on collected data without employing any system identification step. Robust global…

系统与控制 · 电气工程与系统科学 2022-04-29 Tobias M. Wolff , Victor G. Lopez , Matthias A. Müller

Model-free reinforcement learning algorithms can compute policy gradients given sampled environment transitions, but require large amounts of data. In contrast, model-based methods can use the learned model to generate new data, but model…

机器学习 · 计算机科学 2022-03-04 Lukas P. Fröhlich , Maksym Lefarov , Melanie N. Zeilinger , Felix Berkenkamp

Reinforcement learning with verifiable rewards (RLVR) for Large Reasoning Models hinges on baseline estimation for variance reduction, but existing approaches pay a heavy price: PPO requires a policy-model scale critic, while GRPO needs…

机器学习 · 计算机科学 2026-05-12 Yunho Choi , Jongwon Lim , Woojin Ahn , Minjae Oh , Jeonghoon Shim , Yohan Jo

As Text-to-Video (T2V) generation models continue to evolve, the complexity of video evaluation necessitates a fine-grained assessment across various axes. To address this, recent works have focused on developing Multidimensional Video…

机器学习 · 计算机科学 2026-05-28 Muyao Wang , Zeke Xie , Hideki Nakayama

Graph incremental learning is a learning paradigm that aims to adapt trained models to continuously incremented graphs and data over time without the need for retraining on the full dataset. However, regular graph machine learning methods…

机器学习 · 计算机科学 2025-08-14 Lecheng Kong , Theodore Vasiloudis , Seongjun Yun , Han Xie , Xiang Song

In recent years, pre-trained visual-linguistic models have demonstrated tremendous potential, becoming a crucial foundational framework for numerous downstream tasks. However, the information density between text and images is not uniformly…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Mengyuan Tian , Qiyan Zhao , Yanan Wang , Da-Han Wang

This paper presents a deep reinforcement learning (DRL) framework for dynamic portfolio optimization under market uncertainty and risk. The proposed model integrates a Sharpe ratio-based reward function with direct risk control mechanisms,…

投资组合管理 · 定量金融 2025-11-17 Emmanuel Lwele , Sabuni Emmanuel , Sitali Gabriel Sitali

Value estimation is a critical component of the reinforcement learning (RL) paradigm. The question of how to effectively learn value predictors from data is one of the major problems studied by the RL community, and different approaches…

We present a new practical framework based on deep reinforcement learning and decision-time planning for real-world vehicle repositioning on ride-hailing (a type of mobility-on-demand, MoD) platforms. Our approach learns the spatiotemporal…

机器学习 · 计算机科学 2021-07-13 Yan Jiao , Xiaocheng Tang , Zhiwei Qin , Shuaiji Li , Fan Zhang , Hongtu Zhu , Jieping Ye

Current model-based reinforcement learning approaches use the model simply as a learned black-box simulator to augment the data for policy optimization or value function learning. In this paper, we show how to make more effective use of the…

机器学习 · 计算机科学 2020-05-19 Ignasi Clavera , Violet Fu , Pieter Abbeel

Reinforcement learning struggles in the face of long-horizon tasks and sparse goals due to the difficulty in manual reward specification. While existing methods address this by adding intrinsic rewards, they may fail to provide meaningful…

人工智能 · 计算机科学 2024-06-12 Zeyuan Liu , Ziyu Huan , Xiyao Wang , Jiafei Lyu , Jian Tao , Xiu Li , Furong Huang , Huazhe Xu

Effective evaluation of real-time strategy tasks requires adaptive mechanisms to cope with dynamic and unpredictable environments. This study proposes a method to improve evaluation functions for real-time responsiveness to battle-field…

人工智能 · 计算机科学 2025-01-08 Weilong Yang , Jie Zhang , Xunyun Liu , Yanqing Ye

Learning a predictive model of the mean return, or value function, plays a critical role in many reinforcement learning algorithms. Distributional reinforcement learning (DRL) has been shown to improve performance by modeling the value…

机器学习 · 计算机科学 2025-07-08 Ju-Seung Byun , Andrew Perrault

Recent advances in language and vision have demonstrated that scaling up model capacity consistently improves performance across diverse tasks. In 3D visual geometry reconstruction, large-scale training has likewise proven effective for…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Jingnan Gao , Zhe Wang , Xianze Fang , Xingyu Ren , Zhuo Chen , Shengqi Liu , Yuhao Cheng , Jiangjing Lyu , Xiaokang Yang , Yichao Yan

Reinforcement Learning with Verifiable Reward (RLVR) is a powerful method for enhancing the reasoning abilities of Large Language Models, but its full potential is limited by a lack of exploration in two key areas: Depth (the difficulty of…

机器学习 · 计算机科学 2026-04-14 Zhicheng Yang , Zhijiang Guo , Yinya Huang , Yongxin Wang , Dongchun Xie , Hanhui Li , Yiwei Wang , Xiaodan Liang , Jing Tang

Reward models (RMs) are a critical component of reinforcement learning from human feedback (RLHF). However, conventional dense RMs are susceptible to exploitation by policy models through biases or spurious correlations, resulting in reward…

机器学习 · 计算机科学 2026-02-03 Lingling Fu , Yongfu Xue

We propose DiffusionRollout, a novel selective rollout planning strategy for autoregressive diffusion models, aimed at mitigating error accumulation in long-horizon predictions of physical systems governed by partial differential equations…

人工智能 · 计算机科学 2026-02-17 Seungwoo Yoo , Juil Koo , Daehyeon Choi , Minhyuk Sung

In this paper, we present a robotic model-based reinforcement learning method that combines ideas from model identification and model predictive control. We use a feature-based representation of the dynamics that allows the dynamics model…

机器学习 · 计算机科学 2016-03-16 Christopher Xie , Sachin Patil , Teodor Moldovan , Sergey Levine , Pieter Abbeel

Data augmentation with generative adversarial networks (GANs) has been popular for class imbalance problems, mainly for pattern classification and computer vision-related applications. Extreme value forecasting is a challenging field that…

机器学习 · 计算机科学 2025-10-06 Junru Hua , Rahul Ahluwalia , Rohitash Chandra

Large Vision Language Models (LVLMs) possess extensive text knowledge but struggles to utilize this knowledge for fine-grained image recognition, often failing to differentiate between visually similar categories. Existing fine-tuning…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Raja Kumar , Arka Sadhu , Ram Nevatia