Results 71 to 80 of about 643,547 (199)

Efficient inference for genetic association studies with multiple outcomes

open access: yes, 2017
Combined inference for heterogeneous high-dimensional data is critical in modern biology, where clinical and various kinds of molecular data may be available from a single study.
Davison, Anthony C.   +3 more
core   +1 more source

Computational Analysis and Classification of Hernia Repairs

open access: yesApplied Sciences
Problems related to ventral hernia repairs (VHR) are very common, and evaluating them using computational methods can assist in selecting the most appropriate treatment.
Hana Charvátová   +4 more
doaj   +1 more source

Parallelized Adaptive Importance Sampling for Solving Inverse Problems

open access: yesFrontiers in Earth Science, 2018
In the field of groundwater hydrology and more generally geophysics, solving inverse problems in a complex, geologically realistic, and discrete model space often requires the usage of Monte Carlo methods.
Christoph Jäggli   +2 more
doaj   +1 more source

On computing sparse universal solvers for key problems in statistics

open access: yes
We give sparsity results and present algorithms for calculating minimum (vector) 1-norm universal solvers connected to least-squares problems. In particular, besides universal least-squares solvers, we consider minimum-rank universal least-squares solvers, and simultaneous universal minimum-norm/least-squares solvers.
Machado, Ananias Sousa   +2 more
openaire   +2 more sources

Portfolio Decisions with Higher Order Moments [PDF]

open access: yes
In this paper, we address the global optimization of two interesting nonconvex problems in finance. We relax the normality assumption underlying the classical Markowitz mean-variance portfolio optimization model and consider the incorporation of skewness
Berc Rustem, P. M. Kleniati
core  

On the expected diameter, width, and complexity of a stochastic convex-hull

open access: yes, 2017
We investigate several computational problems related to the stochastic convex hull (SCH). Given a stochastic dataset consisting of $n$ points in $\mathbb{R}^d$ each of which has an existence probability, a SCH refers to the convex hull of a realization ...
A Jørgensen   +8 more
core   +1 more source

SampSizeCal: The platform-independent computational tool for sample sizes in the paradigm of new statistics [PDF]

open access: yesNetwork Biology
Dependent upon the statistical significance p-value and statistical power, the sample size estimation is widely used in various experimental sciences.
WenJun Zhang
doaj  

Quantum speedup for nonreversible Markov chains

open access: yesNature Communications
Quantum algorithms can potentially solve a handful of problems more efficiently than their classical counterparts. In that context, it has been discussed that Markov chains problems could be solved significantly faster using quantum computing.
Baptiste Claudon   +2 more
doaj   +1 more source

Statistical-computational trade-offs in tensor PCA and related problems via communication complexity

open access: yesThe Annals of Statistics
Tensor PCA is a stylized statistical inference problem introduced by Montanari and Richard to study the computational difficulty of estimating an unknown parameter from higher-order moment tensors. Unlike its matrix counterpart, Tensor PCA exhibits a statistical-computational gap, i.e., a sample size regime where the problem is information ...
Dudeja, Rishabh, Hsu, Daniel
openaire   +3 more sources

R - evolution in Time Series Analysis Software Applied on R - omanian Capital Market [PDF]

open access: yesComputational Methods in Social Sciences, 2014
Worldwide and during the last decade, R has developed in a balanced way and nowadays it represents the most powerful tool for computational statistics, data science and visualization.
Ciprian ALEXANDRU   +2 more
doaj  

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