Results 101 to 110 of about 11,649,749 (258)

Finite Difference Methods for Option Pricing under Lévy Processes: Wiener-Hopf Factorization Approach

open access: yesThe Scientific World Journal, 2013
In the paper, we consider the problem of pricing options in wide classes of Lévy processes. We propose a general approach to the numerical methods based on a finite difference approximation for the generalized Black-Scholes equation.
Oleg Kudryavtsev
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Computation of Normalized Coprime Factorizations of Rational Matrices [PDF]

open access: yes, 1998
We propose a new computational approach based on descriptor state space algorithms for computing normalized coprime factorizations of arbitrary rational matrices.
A. Varga, Varga, A.
core  

Projective robust nonnegative factorization

open access: yes, 2016
Nonnegative matrix factorization (NMF) has been successfully used in many fields as a low-dimensional representation method. Projective nonnegative matrix factorization (PNMF) is a variant of NMF that was proposed to learn a subspace for feature ...
You, Jane   +5 more
core   +1 more source

Comparison of the factorization method and the method of combination of solutions [PDF]

open access: yes, 1972
summary:The authors show on simple experimental examples the unsatisfactory properties of the simple and frequently used method of combination of solutions in comparison with the factorization method.
Hrubec, Ivo, Taufer, Jiří
core   +1 more source

Association Between Individualized Education for Kidney Replacement Therapy Modality Selection and Peritoneal Dialysis Initiation: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) is an established home‐based kidney replacement therapy (KRT), but its uptake remains low in Japan. We evaluated whether individualized education in a dedicated outpatient clinic was associated with the initiation of PD.
Yasuko Ito   +7 more
wiley   +1 more source

Development of a Real Time Sparse Non-Negative Matrix Factorization Module for Cochlear Implants by Using xPC Target

open access: yes, 2013
Cochlear implants (CIs) require efficient speech processing to maximize information transmission to the brain, especially in noise. A novel CI processing strategy was proposed in our previous studies, in which sparsity-constrained non-negative matrix ...
Mark Lutman   +7 more
core   +1 more source

A design of a strongly stable generalized predictive control using coprime factorization approach [PDF]

open access: yes, 1999
This paper proposes a new generalized predictive control (GPC) having new design parameters. In selecting the design parameters, the controller becomes a strongly stable GPC, that is, not only the closed-loop system is stable, but also the controller ...
Inoue, Akira   +2 more
core   +1 more source

Collaborative filtering based on nonnegative/binary matrix factorization

open access: yesFrontiers in Big Data
Collaborative filtering generates recommendations by exploiting user-item similarities based on rating data, which often contains numerous unrated items.
Yukino Terui   +5 more
doaj   +1 more source

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