Results 51 to 60 of about 8,222,439 (341)

Almost Optimal Tensor Sketch

open access: yes, 2019
We construct a matrix $M\in R^{m\otimes d^c}$ with just $m=O(c\, \,\varepsilon^{-2}\text{poly}\log1/\varepsilon )$ rows, which preserves the norm $\|Mx\|_2=(1\pm\varepsilon)\|x\|_2$ of all $x$ in any given $ $ dimensional subspace of $ R^d$ with probability at least $1- $. This matrix can be applied to tensors $x^{(1)}\otimes\dots\otimes x^{(c)}\in
Ahle, Thomas D., Knudsen, Jakob B. T.
openaire   +2 more sources

Almost optimal local well-posedness for modified Boussinesq equations

open access: yesElectronic Journal of Differential Equations, 2020
In this article, we investigate a class of modified Boussinesq equations, for which we provide first an alternate proof of local well-posedness in the space $(H^s\cap L^\infty)\times (H^s\cap L^\infty)(\mathbb{R})$ ($s\geq 0$) to the one obtained by
Dan-Andrei Geba, Bai Lin
doaj  

The Repair Problem for Reed–Solomon Codes: Optimal Repair of Single and Multiple Erasures With Almost Optimal Node Size

open access: yesIEEE Transactions on Information Theory, 2019
The repair problem in distributed storage addresses recovery of the data encoded using an erasure code, for instance, a Reed–Solomon (RS) code. We consider the problem of repairing a single node or multiple nodes in RS-coded storage systems using the ...
Itzhak Tamo, Min Ye, A. Barg
semanticscholar   +1 more source

An Almost Optimal Algorithm for Computing Nonnegative Rank [PDF]

open access: yes, 2014
Here, we give an algorithm for deciding if the nonnegative rank of a matrix M of dimension m \times n$ is at most r which runs in time (nm)[superscript O(r2)]. This is the first exact algorithm that runs in time singly exponential in r.
Moitra, Ankur
core   +1 more source

Explicit Non-malleable Extractors, Multi-source Extractors, and Almost Optimal Privacy Amplification Protocols [PDF]

open access: yesIEEE Annual Symposium on Foundations of Computer Science, 2016
We make progress in the following three problems: 1. Constructing optimal seeded non-malleable extractors, 2. Constructing optimal privacy amplification protocols with an active adversary, for any possible security parameter, 3.
Eshan Chattopadhyay, Xin Li
semanticscholar   +1 more source

Continuous approximations of capacities on metric compacta

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
A method of "almost optimal" continuous approximation of capacities on a metric compactum with possibility measures, necessity measures, or with capacities on a closed subspace, is presented.
I.D. Hlushak, O.R. Nykyforchyn
doaj   +1 more source

Principle of Optimal Voltage Regulation and Energy-Saving for Induction Motor With Unknown Constant-Torque Working Condition

open access: yesIEEE Access, 2020
To achieve optimal voltage regulation and energy savings of an AC induction motor operating under constant-torque and variable-working-load conditions, and consider a motor's T-type and Γ-type equivalent circuit, the copper and iron losses of the ...
Zhong Bin, Ma Lili, Dong Hao
doaj   +1 more source

Personalizing the Pediatric Hematology/Oncology Fellowship: Adapting Training for the Next Generation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT The pediatric hematology‐oncology fellowship training curriculum has not substantially changed since its inception. The first year of training is clinically focused, and the second and third years are devoted to scholarship. However, this current structure leaves many fellows less competitive in the current job market, resulting in ...
Scott C. Borinstein   +3 more
wiley   +1 more source

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis   +13 more
wiley   +1 more source

ON THE REGULARITY OF SLE TRACE

open access: yesForum of Mathematics, Sigma, 2017
We revisit regularity of SLE trace, for all $\unicode[STIX]{x1D705}\neq 8$ , and establish Besov regularity under the usual half-space capacity ...
PETER K. FRIZ, HUY TRAN
doaj   +1 more source

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