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Achieving controllable character animation that meets studio-grade standards remains challenging despite recent progress. Existing approaches can transfer motion from a driving video to a reference image, but often fail to preserve…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Wenhao Yan , Sheng Ye , Zhuoyi Yang , Jiayan Teng , ZhenHui Dong , Kairui Wen , Xiaotao Gu , Yong-Jin Liu , Jie Tang

Robots can use Visual Imitation Learning (VIL) to learn manipulation tasks from video demonstrations. However, translating visual observations into actionable robot policies is challenging due to the high-dimensional nature of video data.…

Robotics · Computer Science 2025-01-22 Ananth Jonnavittula , Sagar Parekh , Dylan P. Losey

Multimodal embedding models aim to yield informative unified representations that empower diverse cross-modal tasks. Despite promising developments in the evolution from CLIP-based dual-tower architectures to large vision-language models,…

Reliable prediction of train delays is essential for enhancing the robustness and efficiency of railway transportation systems. In this work, we reframe delay forecasting as a stochastic simulation task, modeling state-transition dynamics…

Machine Learning · Computer Science 2025-12-24 Clément Elliker , Jesse Read , Sonia Vanier , Albert Bifet

Autonomous driving technologies face significant safety challenges while operating under rare, diverse, and visually degraded weather scenarios. These challenges become more critical in cooperative settings, where vehicles and…

Robotics · Computer Science 2025-07-08 Junwei You , Pei Li , Zhuoyu Jiang , Zilin Huang , Rui Gan , Haotian Shi , Bin Ran

Efficient sampling from constraint manifolds, and thereby generating a diverse set of solutions for feasibility problems, is a fundamental challenge. We consider the case where a problem is factored, that is, the underlying nonlinear…

Robotics · Computer Science 2021-03-30 Joaquim Ortiz-Haro , Valentin N. Hartmann , Ozgur S. Oguz , Marc Toussaint

When cast into the Deep Reinforcement Learning framework, many robotics tasks require solving a long horizon and sparse reward problem, where learning algorithms struggle. In such context, Imitation Learning (IL) can be a powerful approach…

Artificial Intelligence · Computer Science 2023-04-14 Alexandre Chenu , Nicolas Perrin-Gilbert , Olivier Sigaud

Apprenticeship learning has recently attracted a wide attention due to its capability of allowing robots to learn physical tasks directly from demonstrations provided by human experts. Most previous techniques assumed that the state space…

Robotics · Computer Science 2017-02-27 Fei Han , Xue Yang , Yu Zhang , Hao Zhang

Interactive Imitation Learning (IIL) is a branch of Imitation Learning (IL) where human feedback is provided intermittently during robot execution allowing an online improvement of the robot's behavior. In recent years, IIL has increasingly…

We present an approach for mobile robots to learn to navigate in dynamic environments with pedestrians via raw depth inputs, in a socially compliant manner. To achieve this, we adopt a generative adversarial imitation learning (GAIL)…

Robotics · Computer Science 2018-02-27 Lei Tai , Jingwei Zhang , Ming Liu , Wolfram Burgard

We introduce SAIL-RL, a reinforcement learning (RL) post-training framework that enhances the reasoning capabilities of multimodal large language models (MLLMs) by teaching them when and how to think. Existing approaches are limited by…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Fangxun Shu , Yongjie Ye , Yue Liao , Zijian Kang , Weijie Yin , Jiacong Wang , Xiao Liang , Shuicheng Yan , Chao Feng

Deep imitation learning enables robots to learn from expert demonstrations to perform tasks such as lane following or obstacle avoidance. However, in the traditional imitation learning framework, one model only learns one task, and thus it…

Computer Vision and Pattern Recognition · Computer Science 2018-08-19 Junhong Xu , Qiwei Liu , Hanqing Guo , Aaron Kageza , Saeed AlQarni , Shaoen Wu

Model-based imitation learning (MBIL) is a popular reinforcement learning method that improves sample efficiency on high-dimension input sources, such as images and videos. Following the convention of MBIL research, existing algorithms are…

Machine Learning · Computer Science 2023-06-21 Shenghua Wan , Yucen Wang , Minghao Shao , Ruying Chen , De-Chuan Zhan

Imitation learning (IL) is a framework that learns to imitate expert behavior from demonstrations. Recently, IL shows promising results on high dimensional and control tasks. However, IL typically suffers from sample inefficiency in terms…

Machine Learning · Computer Science 2021-11-24 Lihua Zhang

Understanding an agent's goals from its behavior is fundamental to aligning AI systems with human intentions. Existing goal recognition methods typically rely on an optimal goal-oriented policy representation, which may differ from the…

Artificial Intelligence · Computer Science 2026-02-17 Osher Elhadad , Felipe Meneguzzi , Reuth Mirsky

Continual learning (CL) with Vision-Language Models (VLMs) has overcome the constraints of traditional CL, which only focuses on previously encountered classes. During the CL of VLMs, we need not only to prevent the catastrophic forgetting…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Yicheng Xu , Yuxin Chen , Jiahao Nie , Yusong Wang , Huiping Zhuang , Manabu Okumura

In Large Visual Language Models (LVLMs), the efficacy of In-Context Learning (ICL) remains limited by challenges in cross-modal interactions and representation disparities. To overcome these challenges, we introduce a novel Visual…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Yucheng Zhou , Xiang Li , Qianning Wang , Jianbing Shen

In-context learning (ICL) with dynamically selected demonstrations combines the flexibility of prompting large language models (LLMs) with the ability to leverage training data to improve performance. While ICL has been highly successful…

Computation and Language · Computer Science 2025-06-17 Shivanshu Gupta , Sameer Singh , Ashish Sabharwal , Tushar Khot , Ben Bogin

Imitation learning (IL) has achieved considerable success in solving complex sequential decision-making problems. However, current IL methods mainly assume that the environment for learning policies is the same as the environment for…

Machine Learning · Computer Science 2023-10-24 Siyuan Li , Xun Wang , Rongchang Zuo , Kewu Sun , Lingfei Cui , Jishiyu Ding , Peng Liu , Zhe Ma

Imitation learning (IL) has proven to be an effective method for learning good policies from expert demonstrations. Adversarial imitation learning (AIL), a subset of IL methods, is particularly promising, but its theoretical foundation in…

Machine Learning · Computer Science 2023-06-14 Tian Xu , Ziniu Li , Yang Yu , Zhi-Quan Luo