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We focus on the problem of streaming recommender system and explore novel collaborative filtering algorithms to handle the data dynamicity and complexity in a streaming manner. Although deep neural networks have demonstrated the…

Machine Learning · Computer Science 2019-06-12 Qingquan Song , Shiyu Chang , Xia Hu

All simulation approaches eventually face limits in computational scalability when applied to large spatiotemporal domains. This challenge becomes especially apparent in molecular-level particle simulations, where high spatial and temporal…

Computational Physics · Physics 2025-10-23 Matthias Busch , Gregor Häfner , Jiayu Xie , Marius Tacke , Marcus Müller , Christian J. Cyron , Roland C. Aydin

Multimodal large language models (MLLMs) have achieved remarkable progress in vision-language tasks, but they continue to struggle with spatial understanding. Existing spatial MLLMs often rely on explicit 3D inputs or architecture-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Hunar Batra , Haoqin Tu , Hardy Chen , Yuanze Lin , Cihang Xie , Ronald Clark

Online sampling-supported visual analytics is increasingly important, as it allows users to explore large datasets with acceptable approximate answers at interactive rates. However, existing online spatiotemporal sampling techniques are…

To usher in the next round of client AI innovation, there is an urgent need to enable efficient, lossless inference of high-accuracy large language models (LLMs) and vision language models (VLMs), jointly referred to as xLMs, on client…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-30 Aditya Ukarande , Deep Shekhar , Marc Blackstein , Ram Rangan

Multimodal large language models (MLLMs) are rapidly expanding from general video understanding to finer-grained understanding such as spatio-temporal video grounding (STVG) and reasoning. In these tasks, an MLLM must localize the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Shida Gao , Feng Xue , Xiangfeng Wang , Anlong Ming , Zhaowen Lin , Haiyang Zhang , Teng Long , Nicu Sebe , Yihua Shao , Haozhe Wang , Wei Wang

This work focuses on channel estimation in extremely large aperture array (ELAA) systems, where near-field propagation and spatial non-stationarity introduce complexities that hinder the effectiveness of traditional estimation techniques. A…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Thibaut Ceulemans , Cel Thys , Robbert Beerten , Zhuangzhuang Cui , Sofie Pollin

Semantic context is an important and useful cue for scene parsing in complicated natural images with a substantial amount of variations in objects and the environment. This paper proposes Spatially Constrained Location Prior (SCLP) for…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Ligang Zhang , Brijesh Verma , David Stockwell , Sujan Chowdhury

Humans perceive and understand real-world spaces through a stream of visual observations. Therefore, the ability to streamingly maintain and update spatial evidence from potentially unbounded video streams is essential for spatial…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Fangfu Liu , Diankun Wu , Jiawei Chi , Yimo Cai , Yi-Hsin Hung , Xumin Yu , Hao Li , Han Hu , Yongming Rao , Yueqi Duan

Efficient sorting of target cells is crucial for advancing cellular research in biology and medical diagnostics. Inertial microfluidics, an emerging technology, offers a promising approach for label-free particle sorting with high…

Fluid Dynamics · Physics 2023-08-04 Sayan Karmakar , Md Safwan Mondal , Anish Pal , Sourav Sarkar

In the past decades, great progress has been made in the field of optical and particle-based measurement techniques for experimental analysis of fluid flows. Particle Image Velocimetry (PIV) technique is widely used to identify flow…

Image and Video Processing · Electrical Eng. & Systems 2021-01-29 Nikolay Stulov , Michael Chertkov

Multimodal Large Language Models (MLLMs) face significant computational overhead when processing long videos due to the massive number of visual tokens required. To improve efficiency, existing methods primarily reduce redundancy by pruning…

Artificial Intelligence · Computer Science 2026-05-22 Bingjun Luo , Tony Wang , Chaoqi Chen , Xinpeng Ding

Spatial reasoning, the ability to understand spatial relations, causality, and dynamic evolution, is central to human intelligence and essential for real-world applications such as autonomous driving and robotics. Existing studies, however,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Yanguang Zhao , Jie Yang , Shengqiong Wu , Shutong Hu , Hongbo Qiu , Yu Wang , Guijia Zhang , Tan Kai Ze , Hao Fei , Chia-Wen Lin , Mong-Li Lee , Wynne Hsu

Convolutional Neural Networks (CNNs) have recently been shown to excel at performing visual place recognition under changing appearance and viewpoint. Previously, place recognition has been improved by intelligently selecting relevant…

Robotics · Computer Science 2018-10-31 Stephen Hausler , Adam Jacobson , Michael Milford

Constrained image splicing detection and localization (CISDL) is a fundamental task of multimedia forensics, which detects splicing operation between two suspected images and localizes the spliced region on both images. Recent works regard…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yuxuan Tan , Yuanman Li , Limin Zeng , Jiaxiong Ye , Wei wang , Xia Li

Vehicle re-identification is an important problem and has many applications in video surveillance and intelligent transportation. It gains increasing attention because of the recent advances of person re-identification techniques. However,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Yantao Shen , Tong Xiao , Hongsheng Li , Shuai Yi , Xiaogang Wang

Visual Place Recognition (VPR) is a core component in computer vision, typically formulated as an image retrieval task for localization, mapping, and navigation. In this work, we instead study VPR as an image pair retrieval front-end for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Dennis Haitz , Athradi Shritish Shetty , Michael Weinmann , Markus Ulrich

We introduce smallest valid partitioning (SVP), a segmentation method for multiple change-point detection in time-series. SVP relies on a local notion of segment validity: a candidate segment is retained only if it passes a user-chosen…

Methodology · Statistics 2026-02-05 Vincent Runge , Anica Kostic , Alexandre Combeau , Gaetano Romano

Recent advancements in Multimodal Large Language Models (MLLMs), particularly through Reinforcement Learning with Verifiable Rewards (RLVR), have significantly enhanced their reasoning abilities. However, a critical gap persists: these…

Artificial Intelligence · Computer Science 2025-07-14 Inclusion AI , : , Fudong Wang , Jiajia Liu , Jingdong Chen , Jun Zhou , Kaixiang Ji , Lixiang Ru , Qingpei Guo , Ruobing Zheng , Tianqi Li , Yi Yuan , Yifan Mao , Yuting Xiao , Ziping Ma

The trade-off in remote sensing instruments that balances the spatial resolution and temporal frequency limits our capacity to monitor spatial and temporal dynamics effectively. The spatiotemporal data fusion technique is considered as a…

Computer Vision and Pattern Recognition · Computer Science 2017-10-11 Qing Cheng , Huiqing Liu , Huanfeng Shen , Penghai Wu , Liangpei Zhang