Results 61 to 70 of about 6,254,702 (218)

Low-rank matrix approximation with weights or missing data is NP-hard [PDF]

Weighted low-rank approximation (WLRA), a dimensionality reduction technique for data analysis, has been successfully used in several applications, such as in collaborative filtering to design recommender systems or in computer vision to recover ...
GILLIS, Nicolas, GLINEUR, François
core  

On the Identification of Sparse plus Low-rank Graphical Models [PDF]

, 2022
This thesis proposes an identification procedure for periodic, Gaussian, stationary reciprocal processes, under the assumption that the conditional dependence relations among the observed variables are mainly due to a limited number of latent variables ...
Alpago, Daniele
core  

Matroidal representations of low rank

Advances in Applied Mathematics
The original submission (arXiv:2411.19883) was split into two parts, and this is the second.
Jaiung Jun, Kalina Mincheva, Jeffrey Tolliver   +2 more
openaire   +2 more sources

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

Do student evaluations of university reflect inaccurate beliefs or actual experience? A relative rank model [PDF]

, 2014
It was shown that student satisfaction ratings are influenced by context in ways that have important theoretical and practical implications. Using questions from the UK's National Student Survey, the study examined whether and how students' expressed ...
Gordon D. A. Brown, G. D. Brown (2274739), John Maltby (562551), Brown, Gordon D A, Maltby, John, Ruth S. Ogden, Ogden, Ruth S., A. M. Wood (7642988), Wood, Alex M, John Maltby, Wood, Alex M., R. S. Ogden (7679024), Ogden, Ruth S, Alex M. Wood, Brown, G. D. A.   +14 more
core   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi, Atsuyoshi Mita, Kosuke Sonoda, Makoto Harada, Koji Hashimoto, Hiroshi Imamura, Yuji Kamijo   +6 more
wiley   +1 more source

Reduced-rank adaptive least bit-error-rate detection in hybrid direct-sequence time-hopping ultrawide bandwidth systems

, 2011
Design of high-efficiency low-complexity detection schemes for ultrawide bandwidth (UWB) systems is highly challenging. This contribution proposes a reduced-rank adaptive multiuser detection (MUD) scheme operated in least bit-errorrate (LBER) principles ...
Ahmed, Qasim, Sheng Chen, Yang, Lie-Liang, Lie-Liang Yang, Chen, Sheng, Qasim Zeeshan Ahmed   +5 more
core   +1 more source

Organoids in pediatric cancer research

FEBS 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

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Randomized methods for dynamical low-rank approximation

We introduce novel dynamical low-rank methods for solving large-scale matrix differential equa- tions, motivated by algorithms from randomized numerical linear algebra.
Carrel, Benjamin
core   +1 more source