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Existing zero-shot Object Goal Navigation (ObjectNav) methods often exploit commonsense knowledge from large language or vision-language models to guide navigation. However, such knowledge arises from internet-scale text rather than…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Yiyao Wang , Sixian Zhang , Keming Zhang , Xinhang Song , Songjie Du , Shuqiang Jiang

Trajectory data mining is crucial for smart city management. However, collecting large-scale trajectory datasets is challenging due to factors such as commercial conflicts and privacy regulations. Therefore, we urgently need trajectory…

机器学习 · 计算机科学 2025-02-04 Jingyuan Wang , Yujing Lin , Yudong Li

Multi-agent trajectory prediction, as a critical task in modeling complex interactions of objects in dynamic systems, has attracted significant research attention in recent years. Despite the promising advances, existing studies all follow…

人工智能 · 计算机科学 2024-10-21 Tangwen Qian , Yile Chen , Gao Cong , Yongjun Xu , Fei Wang

Robotic systems demand accurate and comprehensive 3D environment perception, requiring simultaneous capture of photo-realistic appearance (optical), precise layout shape (geometric), and open-vocabulary scene understanding (semantic).…

机器人学 · 计算机科学 2025-09-10 Yinan Deng , Yufeng Yue , Jianyu Dou , Jingyu Zhao , Jiahui Wang , Yujie Tang , Yi Yang , Mengyin Fu

Multimodal data plays a critical role in web-based recommendation systems, where information from diverse modalities such as vision and text enhances representation learning. However, real-world multimodal datasets often suffer from…

信息检索 · 计算机科学 2026-05-04 Yuan Li , Jun Hu , Jiaxin Jiang , Bryan Hooi , Bingsheng He

In this paper the preliminary design of multiple gravity-assist trajectories is formulated as a global optimization problem. An analysis of the structure of the solution space reveals a strong multimodality, which is strictly dependent on…

最优化与控制 · 数学 2011-05-11 Massimiliano Vasile , Paolo DePascale

Recent research on representation learning has proved the merits of multi-modal clues for robust semantic segmentation. Nevertheless, a flexible pretrain-and-finetune pipeline for multiple visual modalities remains unexplored. In this…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Bo-Wen Yin , Jiao-Long Cao , Xuying Zhang , Yuming Chen , Ming-Ming Cheng , Qibin Hou

Trajectory prediction serves as a critical functionality in autonomous driving, enabling the anticipation of future motion paths for traffic participants such as vehicles and pedestrians, which is essential for driving safety. Although…

机器人学 · 计算机科学 2025-09-16 Wei Dai , Shengen Wu , Wei Wu , Zhenhao Wang , Sisuo Lyu , Haicheng Liao , Limin Yu , Weiping Ding , Runwei Guan , Yutao Yue

Trajectory data is essential for various applications as it records the movement of vehicles. However, publicly available trajectory datasets remain limited in scale due to privacy concerns, which hinders the development of trajectory data…

机器学习 · 计算机科学 2024-09-12 Tonglong Wei , Youfang Lin , Shengnan Guo , Yan Lin , Yiheng Huang , Chenyang Xiang , Yuqing Bai , Huaiyu Wan

Retrieving tracked-vehicles by natural language descriptions plays a critical role in smart city construction. It aims to find the best match for the given texts from a set of tracked vehicles in surveillance videos. Existing works…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Yunhao Du , Binyu Zhang , Xiangning Ruan , Fei Su , Zhicheng Zhao , Hong Chen

Lineart colorization is a critical stage in professional content creation, yet achieving precise and flexible results under diverse user constraints remains a significant challenge. To address this, we propose OmniColor, a unified framework…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Xulu Zhang , Haoqian Du , Xiaoyong Wei , Qing Li

Omni-modal language models (OLMs) aim to integrate and reason over diverse input modalities--such as text, images, video, and audio--while maintaining strong language capabilities. Despite recent advancements, existing models, especially…

计算与语言 · 计算机科学 2025-06-03 Tinghui Zhu , Kai Zhang , Muhao Chen , Yu Su

Universal Multimodal Retrieval requires unified embedding models capable of interpreting diverse user intents, ranging from simple keywords to complex compositional instructions. While Multimodal Large Language Models (MLLMs) possess strong…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Xiangzhao Hao , Shijie Wang , Tianyu Yang , Tianyue Wang , Haiyun Guo , Jinqiao Wang

Multimodal spatiotemporal learning on real-world experimental data is constrained by two challenges: within-modality measurements are sparse, irregular, and noisy (QA/QC artifacts) but cross-modally correlated; the set of available…

机器学习 · 计算机科学 2025-11-05 Kevin Valencia , Thilina Balasooriya , Xihaier Luo , Shinjae Yoo , David Keetae Park

Tool-Integrated Reasoning (TIR) enables large language models (LLMs) to solve complex tasks by interacting with external tools, yet existing approaches depend on high-quality synthesized trajectories selected by scoring functions and sparse…

人工智能 · 计算机科学 2026-02-02 Siyu Gong , Linan Yue , Weibo Gao , Fangzhou Yao , Shimin Di , Lei Feng , Min-Ling Zhang

Multimodal information retrieval (MIR) faces inherent challenges due to the heterogeneity of data sources and the complexity of cross-modal alignment. While previous studies have identified modal gaps in feature spaces, a systematic…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Fanheng Kong , Jingyuan Zhang , Yahui Liu , Hongzhi Zhang , Shi Feng , Xiaocui Yang , Daling Wang , Yu Tian , Victoria W. , Fuzheng Zhang , Guorui Zhou

To tackle complex tasks in real-world scenarios, more researchers are focusing on Omni-MLLMs, which aim to achieve omni-modal understanding and generation. Beyond the constraints of any specific non-linguistic modality, Omni-MLLMs map…

人工智能 · 计算机科学 2025-03-05 Shixin Jiang , Jiafeng Liang , Jiyuan Wang , Xuan Dong , Heng Chang , Weijiang Yu , Jinhua Du , Ming Liu , Bing Qin

Multi-Object Tracking (MOT) is evolving from geometric localization to Semantic MOT (SMOT) to answer complex relational queries, yet progress is hindered by semantic data scarcity and a structural disconnect between tracking architectures…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Pan Liao , Feng Yang , Di Wu , Jinwen Yu , Yuhua Zhu , Wenhui Zhao , Dingwen Zhang

Urban mobility is naturally expressed both as trajectories in space and as natural-language descriptions of travel intent, constraints, and preferences. However, prior work rarely evaluates these two modalities together on the same…

人工智能 · 计算机科学 2026-05-12 Lihuan Li , Wilson Wongso , Baiyu Chen , Hao Xue , Ruiyi Yang , Yifan Duan , Xiachong Lin , Yang Song , Flora Salim

Increasing and massive volumes of trajectory data are being accumulated that may serve a variety of applications, such as mining popular routes or identifying ridesharing candidates. As storing and querying massive trajectory data is…

数据库 · 计算机科学 2023-12-14 Zheng Wang , Cheng Long , Gao Cong , Christian S. Jensen