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Large vision-language models (LVLMs) often fail to align with human preferences, leading to issues like generating misleading content without proper visual context (also known as hallucination). A promising solution to this problem is using…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Chenglong Wang , Yang Gan , Yifu Huo , Yongyu Mu , Murun Yang , Qiaozhi He , Tong Xiao , Chunliang Zhang , Tongran Liu , Quan Du , Di Yang , Jingbo Zhu

We introduce PRISM, a method for real-time filtering in a probabilistic generative model of agent motion and visual perception. Previous approaches either lack uncertainty estimates for the map and agent state, do not run in real-time, do…

Machine Learning · Computer Science 2022-12-07 Atanas Mirchev , Baris Kayalibay , Ahmed Agha , Patrick van der Smagt , Daniel Cremers , Justin Bayer

Efficiently enhancing the reasoning capabilities of Vision-Language Models (VLMs) by merging them with Large Reasoning Models (LRMs) has emerged as a promising direction. However, existing methods typically operate at a coarse-grained layer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Chenyu Huang , Peng Ye , Xudong Tan , Jinhan Mu , Shenghe Zheng , Li Shen , Tao Chen

In-context reinforcement learning (ICRL) leverages the in-context learning capabilities of transformer models (TMs) to efficiently generalize to unseen sequential decision-making tasks without parameter updates. However, existing ICRL…

Machine Learning · Computer Science 2026-02-10 Juncheng Dong , Bowen He , Moyang Guo , Ethan X. Fang , Zhuoran Yang , Vahid Tarokh

Generative sequence modeling faces a fundamental tension between the expressivity of Transformers and the efficiency of linear sequence models. Existing efficient architectures are theoretically bounded by shallow, single-step linear…

Machine Learning · Computer Science 2026-02-13 Jie Jiang , Ke Cheng , Xin Xu , Mengyang Pang , Tianhao Lu , Jiaheng Li , Yue Liu , Yuan Wang , Jun Zhang , Huan Yu , Zhouchen Lin

Compared to traditional image retrieval tasks, product retrieval in retail settings is even more challenging. Products of the same type from different brands may have highly similar visual appearances, and the query image may be taken from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Arda Kabadayi , Senem Velipasalar , Jiajing Chen

Automating experimental protocol design and execution remains as a fundamental bottleneck in realizing self-driving laboratories. We introduce PRISM (Protocol Refinement through Intelligent Simulation Modeling), a framework that automates…

Safe reinforcement learning (RL) is a standard paradigm for safety-critical decision making. However, real-world safety constraints can be complex, subjective, and even hard to explicitly specify. Existing works on constraint inference rely…

Machine Learning · Computer Science 2026-05-25 Chenglin Li , Grant Ruan , Hua Geng

Preference-based reinforcement learning (PbRL) bypasses explicit reward engineering by inferring reward functions from human preference comparisons, enabling better alignment with human intentions. However, humans often struggle to label a…

Machine Learning · Computer Science 2025-06-11 Ni Mu , Hao Hu , Xiao Hu , Yiqin Yang , Bo Xu , Qing-Shan Jia

Robot motion planning often requires finding trajectories that balance different user intents, or preferences. One of these preferences is usually arrival at the goal, while another might be obstacle avoidance. Here, we formalize these, and…

Robotics · Computer Science 2018-12-03 Aleksandra Faust , Hao-Tien Lewis Chiang , Lydia Tapia

Generative Sequential Recommendation (GSR) has emerged as a promising paradigm, reframing recommendation as an autoregressive sequence generation task over discrete Semantic IDs (SIDs), typically derived via codebook-based quantization.…

Information Retrieval · Computer Science 2026-01-26 Dengzhao Fang , Jingtong Gao , Yu Li , Xiangyu Zhao , Yi Chang

The inverse problem of multilayer thin-film optical coatings design represents a complex combinatorial-continuous optimization challenge. We present PRISM (Position-encoded Regressive Inverse Spectral Model), a unified decoder-only…

Machine Learning · Computer Science 2026-05-27 Runtian Wang , Renhao Xue , Baige Chen , Hao Wu

Long-range tasks demand reasoning over long inputs. However, existing solutions are limited, e.g., long-context models require large compute budgets, parameter-efficient fine-tuning (PEFT) needs training data, and retrieval-augmented…

Artificial Intelligence · Computer Science 2025-08-26 Dulhan Jayalath , James Bradley Wendt , Nicholas Monath , Sandeep Tata , Beliz Gunel

Preference learning in Large Language Models (LLMs) has advanced significantly, yet existing methods remain limited by modest performance gains, high computational costs, hyperparameter sensitivity, and insufficient modeling of global…

Computation and Language · Computer Science 2026-04-03 Liang Zhu , Yuelin Bai , Xiankun Ren , Jiaxi Yang , Lei Zhang , Feiteng Fang , Hamid Alinejad-Rokny , Minghuan Tan , Min Yang

Point cloud analysis without pose priors is very challenging in real applications, as the orientations of point clouds are often unknown. In this paper, we propose a brand new point-set learning framework PRIN, namely, Point-wise Rotation…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Yang You , Yujing Lou , Ruoxi Shi , Qi Liu , Yu-Wing Tai , Lizhuang Ma , Weiming Wang , Cewu Lu

Video dataset condensation aims to reduce the immense computational cost of video processing. However, it faces a fundamental challenge regarding the inseparable interdependence between spatial appearance and temporal dynamics. Prior work…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Jaehyun Choi , Jiwan Hur , Gyojin Han , Jaemyung Yu , Junmo Kim

Dynamic text-attributed graphs (DyTAGs) provide a powerful framework for modeling evolving systems in which node semantics and time-dependent interactions are tightly coupled. Recently, multimodal learning has emerged as a promising yet…

Machine Learning · Computer Science 2026-05-08 Trimble Chang , Yihang Liu , Mingjing Han , Han Zhang

In this paper, we propose Precision-Informed Semantic Modeling (PRISM), a structured topic modeling framework combining the benefits of rich representations captured by LLMs with the low cost and interpretability of latent semantic…

Machine Learning · Computer Science 2026-04-06 Connor Douglas , Utkucan Balci , Joseph Aylett-Bullock

Preference-based reinforcement learning (PbRL) can help avoid sophisticated reward designs and align better with human intentions, showing great promise in various real-world applications. However, obtaining human feedback for preferences…

Machine Learning · Computer Science 2026-04-06 Yiqin Yang , Hao Hu , Yihuan Mao , Jin Zhang , Chengjie Wu , Yuhua Jiang , Xu Yang , Runpeng Xie , Yi Fan , Bo Liu , Yang Gao , Bo Xu , Chongjie Zhang

Multimodal large language models (MLLMs) have shown remarkable capabilities, yet their performance is often capped by the coarse nature of existing alignment techniques. A critical bottleneck remains the lack of effective reward models…

Computation and Language · Computer Science 2026-02-03 Zicheng Kong , Dehua Ma , Zhenbo Xu , Alven Yang , Yiwei Ru , Haoran Wang , Zixuan Zhou , Fuqing Bie , Liuyu Xiang , Huijia Wu , Jian Zhao , Zhaofeng He