Results 61 to 70 of about 1,650,745 (287)

On the rank minimization problem [PDF]

open access: yesProceedings of the 2004 American Control Conference, 2004
After a brief overview of the problem of finding the extremal (minimum or maximum) rank positive semidefinite matrix subject to matrix inequalities, we identify a few new classes of such problems that can be efficiently solved. We then proceed to present an algorithm for solving the general class of rank minimization problems.
null Yoonsoo Kim, M. Mesbahi
openaire   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Mixed Alternating Projections with Application to Hankel Low-Rank Approximation

open access: yesAlgorithms, 2022
The method of alternating projections for extracting low-rank signals is considered. The problem of decreasing the computational costs while keeping the estimation accuracy is analyzed.
Nikita Zvonarev, Nina Golyandina
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Array pattern synthesis using semidefinite programming and a bisection method

open access: yesETRI Journal, 2019
In this paper, we propose an array pattern synthesis scheme using semidefinite programming (SDP) under array excitation power constraints. When an array pattern synthesis problem is formulated as an SDP problem, it is known that an additional rank‐one ...
Jong‐Ho Lee   +3 more
doaj   +1 more source

HOSVD-Based Algorithm for Weighted Tensor Completion

open access: yesJournal of Imaging, 2021
Matrix completion, the problem of completing missing entries in a data matrix with low-dimensional structure (such as rank), has seen many fruitful approaches and analyses.
Zehan Chao   +2 more
doaj   +1 more source

When Does an Ensemble of Matrices with Randomly Scaled Rows Lose Rank?

open access: yes, 2015
We consider the problem of determining rank loss conditions for a concatenation of full-rank matrices, such that each row of the composing matrices is scaled by a random coefficient.
Avestimehr, A. Salman   +2 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

ON RANK REVERSAL OF ALTERNATIVE PROBLEM WHILE MULTICRITERIA ESTIMATING

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики", 2006
The phenomenon of alternatives rank reversal is studied, appearing in rating calculation using Analytic Hierarchy Process (AHP) method. The sufficient condition is found for the rank reversal absence.
V.G. Totsenko
doaj  

Hyperspectral Image Reconstruction via Block Low-Rank and Three-Dimension Weighted Total Variation Constraint

open access: yesIEEE Access, 2019
Compressed hyperspectral image reconstruction plays an important role in hyperspectral image processing, which aims to reduce the cost of transmission and recover the hyperspectral image from a small amount of data.
Zongrui Wu   +4 more
doaj   +1 more source

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