Results 51 to 60 of about 10,207,361 (300)

Approximation Algorithms for Maximization of k-Submodular Function Under a Matroid Constraint

open access: yesTsinghua Science and Technology
In this paper, we design a deterministic 1/3-approximation algorithm for the problem of maximizing non-monotone k-submodular function under a matroid constraint.
Yuezhu Liu, Yunjing Sun, Min Li
doaj   +1 more source

On Application of the Ray-Shooting Method for LQR via Static-Output-Feedback

open access: yesAlgorithms, 2018
In this article we suggest a randomized algorithm for the LQR (Linear Quadratic Regulator) optimal-control problem via static-output-feedback. The suggested algorithm is based on the recently introduced randomized optimization method called the Ray ...
Yossi Peretz
doaj   +1 more source

Efficient Asynchronous Semi-Stochastic Block Coordinate Descent Methods for Large-Scale SVD

open access: yesIEEE Access, 2021
Eigenvector computation such as Singular Value Decomposition (SVD) is one of the most fundamental problems in machine learning, optimization and numerical linear algebra.
Fanhua Shang   +4 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Fast and Randomized Multiple Kernel Discriminant Analysis for Bird Recognition

open access: yesMathematics
In order to improve the bird strike avoidance management at airports, and to realize the linkage of bird detection radar and a variety of bird repellent equipment, intelligent bird repellent decision methods have attracted widespread attention.
Ke Li   +3 more
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

open access: yesFEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

An introduction to randomized algorithms

open access: yesDiscrete Applied Mathematics, 1991
The concept of randomization is known to be an extremely important tool for the design of algorithms. Its use often yields better time or space complexity compared with the best deterministic algorithms we know of for the same problem; moreover resulting randomized algorithms are often very simple to understand and implement.
openaire   +1 more source

A randomized maximum-flow algorithm [PDF]

open access: yes30th Annual Symposium on Foundations of Computer Science, 1989
Summary: A randomized algorithm for computing a maximum flow is presented. For an \(n\)-vertex \(m\)-edge network, the running time is \(O(nm + n^2 (\log n)^2)\) with probability at least \(1 - 2^{- \sqrt {nm}}\). The algorithm is always correct, and in the worst case runs in \(O(nm \log n)\) time.
Cheriyan, J., Hagerup, T.
openaire   +2 more sources

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

A Monad for Randomized Algorithms

open access: yesElectronic Notes in Theoretical Computer Science, 2016
AbstractIn this paper, we introduce a monad of random choice for domains that does not suffer from the main two drawbacks of the probabilistic powerdomain. It is not known whether any Cartesian closed category of domains is closed under the probabilistic powerdomain, but the Cartesian closed category BCD is closed under this monad of random choice ...
openaire   +1 more source

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