Results 1 to 10 of about 8,709 (260)

The Non-Tightness of a Convex Relaxation to Rotation Recovery [PDF]

open access: yesSensors, 2021
We study the Perspective-n-Point (PNP) problem, which is fundamental in 3D vision, for the recovery of camera translation and rotation. A common solution applies polynomial sum-of-squares (SOS) relaxation techniques via semidefinite programming. Our main
Yuval Alfassi   +2 more
doaj   +4 more sources

Solving ptychography with a convex relaxation [PDF]

open access: yesNew Journal of Physics, 2015
Ptychography is a powerful computational imaging technique that transforms a collection of low-resolution images into a high-resolution sample reconstruction.
Roarke Horstmeyer   +5 more
doaj   +7 more sources

On convex relaxation of graph isomorphism [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
Significance Graphs are a ubiquitous mathematical abstraction used in numerous problems in science and engineering. Of particular importance is the need to find the best structure-preserving matching of graphs. Since graph matching (GM) is a computationally intractable problem, numerous heuristics exist to approximate its solution.
Ron Kimmel   +2 more
exaly   +5 more sources

A High-Precision Hand–Eye Coordination Localization Method under Convex Relaxation Optimization [PDF]

open access: yesSensors
Traditional switching operations require on-site work, and the high voltage generated by arc discharges can pose a risk of injury to the operator. Therefore, a combination of visual servo and robot control is used to localize the switching operation and ...
Jin Hua   +3 more
doaj   +2 more sources

Age of Information Optimization for Wireless Powered Sensor Network Based on IRS-assisted Communication [PDF]

open access: yesJisuanji gongcheng, 2023
To solve the problems that information freshness is easily affected by obstacles between the wireless sensor and Base Station(BS) and that insufficient energy supply of the sensor will lead to degradation of the Age of Information (AoI) performance, a ...
Jiankun YANG, Qianzhu WANG, Yongyi RAN, Feng CHEN
doaj   +1 more source

Reactive Power Scheduling Using Quadratic Convex Relaxation ‎ [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2022
In this paper, quadratic convex relaxation (QCR) is used to relax AC optimal power flow (AC-OPF) used for reactive power scheduling (RPS) of the power system.
E. Limouzadeh, A. Rabiee
doaj   +1 more source

Branch Optimal Power Flow Model for DC Networks with Radial Structure: A Conic Relaxation

open access: yesTecnura, 2022
Objective: This work involves a convex-based mathematical reformulation for the optimal power flow problem in DC networks. The objective of the proposed optimization model corresponds to the minimization of the power losses through all the network ...
Oscar Danilo Montoya Giraldo   +2 more
doaj   +1 more source

Convex Relaxation Methods for Community Detection [PDF]

open access: yesStatistical Science, 2021
This paper surveys recent theoretical advances in convex optimization approaches for community detection. We introduce some important theoretical techniques and results for establishing the consistency of convex community detection under various statistical models. In particular, we discuss the basic techniques based on the primal and dual analysis. We
Li, Xiaodong, Chen, Yudong, Xu, Jiaming
openaire   +4 more sources

On convex numerical schemes for inelastic contacts with friction*** [PDF]

open access: yesESAIM: Proceedings and Surveys, 2023
This paper reviews the different existing Contact Dynamics schemes for the simulation of granular media, for which the discrete incremental problem is based on the resolution of convex problems.
Bloch Helene, Lefebvre-Lepot Aline
doaj   +1 more source

Convex Relaxation for Fokker-Planck

open access: yesCoRR, 2023
We propose an approach to directly estimate the moments or marginals for a high-dimensional equilibrium distribution in statistical mechanics, via solving the high-dimensional Fokker-Planck equation in terms of low-order cluster moments or marginals.
Yian Chen, Yuehaw Khoo, Lek-Heng Lim
openaire   +2 more sources

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