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Registration is a fundamental but critical task in point cloud processing, which usually depends on finding element correspondence from two point clouds. However, the finding of reliable correspondence relies on establishing a robust and…

计算机视觉与模式识别 · 计算机科学 2022-02-16 Rong Huang , Wei Yao , Yusheng Xu , Zhen Ye , Uwe Stilla

Building accurate representations of the environment is critical for intelligent robots to make decisions during deployment. Advances in photorealistic environment models have enabled robots to develop hyper-realistic reconstructions, which…

机器人学 · 计算机科学 2024-10-08 Ziwen Yuan , Tianyi Zhang , Matthew Johnson-Roberson , Weiming Zhi

We have developed a new analytic method to calculate the galaxy two-point correlation functions (TPCFs) accurately and efficiently, applicable to surveys with finite, regular, and mask-free geometries. We have derived simple, accurate…

星系天体物理 · 物理学 2021-11-17 Chong-Chong He

Discovering large cohesive subgraphs is a key task for graph mining. Existing models, such as clique, k-plex, and {\gamma}-quasi-clique, use fixed density thresholds that overlook the natural decay of connectivity as the subgraph size…

社会与信息网络 · 计算机科学 2026-02-12 Song Kim , Hyewon Kim , Kaiqiang Yu , Taejoon Han , Junghoon Kim , Susik Yoon , Jungeun Kim

In this work, we present a high-fidelity and efficient point-particle direct numerical simulation framework based on a multi-block overset curvilinear grid system, enabling large-scale Lagrangian particle tracking in complex geometries with…

流体动力学 · 物理学 2025-09-10 Taiyang Wang , Baoqing Meng , Baolin Tian , Yaomin Zhao

Clustering multidimensional points is a fundamental data mining task, with applications in many fields, such as astronomy, neuroscience, bioinformatics, and computer vision. The goal of clustering algorithms is to group similar objects…

分布式、并行与集群计算 · 计算机科学 2023-05-22 Yihao Huang , Shangdi Yu , Julian Shun

In the last decade, an impressive increase in software adaptions has led to a surge in log data production, making manual log analysis impractical and establishing the necessity for automated methods. Conversely, most automated analysis…

软件工程 · 计算机科学 2025-11-19 Shayan Hashemi , Mika Mäntylä

In this paper, we propose a coarse-to-fine integration solution inspired by the classical ICP algorithm, to pairwise 3D point cloud registration with two improvements of hybrid metric spaces (eg, BSC feature and Euclidean geometry spaces)…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Yue Pan , Bisheng Yang , Fuxun Liang , Zhen Dong

Estimating the rigid transformation between two LiDAR scans through putative 3D correspondences is a typical point cloud registration paradigm. Current 3D feature matching approaches commonly lead to numerous outlier correspondences, making…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Xinyi Li , Hu Cao , Yinlong Liu , Xueli Liu , Feihu Zhang , Alois Knoll

Many graph mining applications rely on detecting subgraphs which are near-cliques. There exists a dichotomy between the results in the existing work related to this problem: on the one hand the densest subgraph problem (DSP) which maximizes…

数据结构与算法 · 计算机科学 2014-05-22 Charalampos E. Tsourakakis

Retrieval-augmented generation (RAG) has strong potential for producing accurate and factual outputs by combining language models (LMs) with evidence retrieved from large text corpora. However, current pipelines are limited by static…

信息检索 · 计算机科学 2026-02-27 Xuechen Zhang , Koustava Goswami , Samet Oymak , Jiasi Chen , Nedim Lipka

With the rapidly increasing rate of microlensing planet detections, microlensing modeling software faces significant challenges in computation efficiency. Here, we develop the Twinkle code, an efficient and robust binary-lens modeling…

天体物理仪器与方法 · 物理学 2025-03-18 Suwei Wang , Lile Wang , Subo Dong

Single-source and top-$k$ SimRank queries are two important types of similarity search in graphs with numerous applications in web mining, social network analysis, spam detection, etc. A plethora of techniques have been proposed for these…

数据库 · 计算机科学 2018-10-30 Yu Liu , Bolong Zheng , Xiaodong He , Zhewei Wei , Xiaokui Xiao , Kai Zheng , Jiaheng Lu

3D Gaussian Splatting (3DGS) has garnered significant attention due to its superior scene representation fidelity and real-time rendering performance, especially for dynamic 3D scene reconstruction (\textit{i.e.}, 4D reconstruction).…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Henan Wang , Hanxin Zhu , Xinliang Gong , Tianyu He , Xin Li , Zhibo Chen

As the data size in Machine Learning fields grows exponentially, it is inevitable to accelerate the computation by utilizing the ever-growing large number of available cores provided by high-performance computing hardware. However, existing…

机器学习 · 计算机科学 2021-04-23 Kun Li , Liang Yuan , Yunquan Zhang , Gongwei Chen

3D motion estimation including scene flow and point cloud registration has drawn increasing interest. Inspired by 2D flow estimation, recent methods employ deep neural networks to construct the cost volume for estimating accurate 3D flow.…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Xiaodong Gu , Chengzhou Tang , Weihao Yuan , Zuozhuo Dai , Siyu Zhu , Ping Tan

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating external knowledge retrieval but faces challenges on edge devices due to high storage, energy, and latency demands. Computing-in-Memory (CIM) offers a…

Autonomous robots are increasingly prevalent in our society, emerging in medical care, transportation vehicles, and home assistance. These robots rely on motion planning and collision detection to identify a sequence of movements allowing…

硬件体系结构 · 计算机科学 2026-03-03 Lufei Liu , Liwei Xue , Youssef Mohammed , Jocelyn Zhao , Yuan Hsi Chou , Tor M. Aamodt

This paper presents a novel randomized algorithm for robust point cloud registration without correspondences. Most existing registration approaches require a set of putative correspondences obtained by extracting invariant descriptors.…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Huu Le , Thanh-Toan Do , Tuan Hoang , Ngai-Man Cheung

In robotic inspection, joint registration of multiple point clouds is an essential technique for estimating the transformation relationships between measured parts, such as multiple blades in a propeller. However, the presence of noise and…

机器人学 · 计算机科学 2024-09-17 Lingjie Su , Wei Xu , Shuyang Zhao , Yuqi Cheng , Wenlong Li