Search Results for author: Xianfeng David Gu

Found 3 papers, 2 papers with code

Global Consistent Point Cloud Registration Based on Lie-algebraic Cohomology

no code implementations15 Aug 2022 Yuxue Ren, Baowei Jiang, Wei Chen, Na lei, Xianfeng David Gu

We present a novel, effective method for global point cloud registration problems by geometric topology.

Point Cloud Registration

Network Alignment by Discrete Ollivier-Ricci Flow

1 code implementation2 Sep 2018 Chien-Chun Ni, Yu-Yao Lin, Jie Gao, Xianfeng David Gu

In this work, we propose to use `Ricci flow metric', to define the distance between two nodes in a network.

Social and Information Networks Computational Geometry

Ricci Curvature of the Internet Topology

2 code implementations17 Jan 2015 Chien-Chun Ni, Yu-Yao Lin, Jie Gao, Xianfeng David Gu, Emil Saucan

Analysis of Internet topologies has shown that the Internet topology has negative curvature, measured by Gromov's "thin triangle condition", which is tightly related to core congestion and route reliability.

Social and Information Networks Computational Geometry Networking and Internet Architecture Physics and Society

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