Results 31 to 40 of about 5,808,675 (298)

Graph Bisection with Pareto Optimization [PDF]

open access: yesACM Journal of Experimental Algorithmics, 2015
We introduce FlowCutter, a novel algorithm to compute a set of edge cuts or node separators that optimize cut size and balance in the Pareto sense. Our core algorithm heuristically solves the balanced connected st -edge-cut problem, where two given nodes s and t must ...
Hamann, Michael, Strasser, Ben
openaire   +6 more sources

Optimization Over Graphs [PDF]

open access: yesSSRN Electronic Journal, 2019
This paper defines isomorphism for network formation that is not mathematically isomorphic. Once the pattern of network formation is characterized, one can test for (i) location fixed effects, (ii) heterogeneity, (iii) private information allowing for long-term contracts.
openaire   +2 more sources

Incremental 3-D pose graph optimization for SLAM algorithm without marginalization

open access: yesInternational Journal of Advanced Robotic Systems, 2020
Pose graph optimization algorithm is a classic nonconvex problem which is widely used in simultaneous localization and mapping algorithm. First, we investigate previous contributions and evaluate their performances using KITTI, Technische Universität ...
Feng Youyang, Wang Qing, Yang Gaochao
doaj   +1 more source

Majorization Minimization Methods for Distributed Pose Graph Optimization [PDF]

open access: yesIEEE Transactions on robotics, 2021
We consider the problem of distributed pose graph optimization (PGO) that has important applications in multirobot simultaneous localization and mapping (SLAM). We propose the majorization minimization (MM) method for distributed PGO ($\mathsf {MM\text{--
Taosha Fan, T. Murphey
semanticscholar   +1 more source

Dimensionality Reduction via Multiple Locality-Constrained Graph Optimization

open access: yesIEEE Access, 2018
In recent years, graph-based dimensionality reduction methods became increasingly more significant since they have been successfully applied in various computer vision and machine learning problems.
Caixia Zheng   +6 more
doaj   +1 more source

Automated 3-D Retinal Layer Segmentation From SD-OCT Images With Neurosensory Retinal Detachment

open access: yesIEEE Access, 2019
Neurosensory retinal detachment (NRD) is a separation of the neurosensory retina from the retinal pigment epithelium (RPE) because of the subretinal fluid that can result in significant vision loss.
Loza Bekalo   +8 more
doaj   +1 more source

Sparse Pose Graph Optimization in Cycle Space [PDF]

open access: yesIEEE Transactions on robotics, 2021
The state-of-the-art modern pose-graph optimization (PGO) systems are vertex based. In this context, the number of variables might be high, albeit the number of cycles in the graph (loop closures) is relatively low.
Fang Bai   +2 more
semanticscholar   +1 more source

Near-Optimal Graph Signal Sampling by Pareto Optimization [PDF]

open access: yesSensors, 2021
In this paper, we focus on the bandlimited graph signal sampling problem. To sample graph signals, we need to find small-sized subset of nodes with the minimal optimal reconstruction error. We formulate this problem as a subset selection problem, and propose an efficient Pareto Optimization for Graph Signal Sampling (POGSS) algorithm.
Dongqi Luo   +4 more
openaire   +3 more sources

Graph Homomorphism Revisited for Graph Matching [PDF]

open access: yes, 2010
In a variety of emerging applications one needs to decide whether a graph G matches another G p , i.e. , whether G
Fan, Wenfei   +4 more
core   +1 more source

Hierarchical Instance Recognition of Individual Roadside Trees in Environmentally Complex Urban Areas from UAV Laser Scanning Point Clouds

open access: yesISPRS International Journal of Geo-Information, 2020
Individual tree segmentation is essential for many applications in city management and urban ecology. Light Detection and Ranging (LiDAR) system acquires accurate point clouds in a fast and environmentally-friendly manner, which enables single tree ...
Yongjun Wang   +4 more
doaj   +1 more source

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