Results 121 to 130 of about 910,037 (350)

An Evaluation of Different Training Sample Allocation Schemes for Discrete and Continuous Land Cover Classification Using Decision Tree-Based Algorithms

open access: yesRemote Sensing, 2015
Land cover mapping for large regions often employs satellite images of medium to coarse spatial resolution, which complicates mapping of discrete classes. Class memberships, which estimate the proportion of each class for every pixel, have been suggested
René Roland Colditz
doaj   +1 more source

Privacy amplification by random allocation

open access: yes
We consider the privacy guarantees of an algorithm in which a user's data is used in $k$ steps randomly and uniformly chosen from a sequence (or set) of $t$ differentially private steps. We demonstrate that the privacy guarantees of this sampling scheme can be upper bound by the privacy guarantees of the well-studied independent (or Poisson ...
Feldman, Vitaly, Shenfeld, Moshe
openaire   +2 more sources

A randomized heuristic approach to register allocation [PDF]

open access: yes, 1991
We present a randomized algorithm to generate contiguous evaluations for expression DAGs representing basic blocks of straight line code with nearly minimal register need. This heuristic may be used to reorder the statements in a basic block before applying a global register allocation scheme like Graph Coloring.
Christoph W. Keßler   +2 more
openaire   +2 more sources

Enhancer Profiling Reveals a Protective Role of RXRα Against Calcium Oxalate‐Induced Crystal Deposition and Kidney Injury

open access: yesAdvanced Science, EarlyView.
Comprehensive epigenomic and transcriptomic profiling revealed a dynamic enhancer landscape and gene expression program associated with nephrolithiasis, highlighting RXRα as a central transcription factor in this regulatory network. Tubular‐specific deletion of RXRα increased intrarenal CaOx crystal deposition, while its activation with Bexarotene ...
Yu Yang   +12 more
wiley   +1 more source

Comparing random data allocation and data striping in multimedia servers [PDF]

open access: bronze, 2000
José Renato Santos   +2 more
openalex   +1 more source

Inequalities and limit theorems for random allocations

open access: yesAnnales UMCS, Mathematica, 2011
Random allocations of balls into boxes are considered. Properties of the number of boxes containing a fixed number of balls are studied. A moment inequality is obtained. A merge theorem with Poissonian accompanying laws is proved. It implies an almost sure limit theorem with a mixture of Poissonian laws as limiting distribution. Almost sure versions of
Fazekas, Istvan   +2 more
openaire   +3 more sources

Cost‐Effective Identification of Hepatocellular Carcinoma from Cirrhosis or Chronic Hepatitis Virus Infection Using Eight Methylated Plasma DNA Markers

open access: yesAdvanced Science, EarlyView.
Early detection of hepatocellular carcinoma in patients with liver cirrhosis and/or hepatitis virus B/C infection improves survival. Through marker discovery, 8 methylated DNA markers are identified and a logistic regression model (COMET‐LR) is built in the training set, which achieved 90.0% sensitivity at 97.4% specificity in the validation set.
Tian Yang   +16 more
wiley   +1 more source

Joint Compressed Sensing and Enhanced Whale Optimization Algorithm for Pilot Allocation in Underwater Acoustic OFDM Systems

open access: yesIEEE Access, 2019
In underwater acoustic-orthogonal frequency division multiplexing (UWA-OFDM) systems, the performance of channel estimation is significantly affected by pilot allocation in the framework of compressed sensing (CS).
Rongkun Jiang   +4 more
doaj   +1 more source

Gravitational allocation to Poisson points [PDF]

open access: yesAnnals of mathematics (2010): 617-671, 2006
For d>=3, we construct a non-randomized, fair and translation-equivariant allocation of Lebesgue measure to the points of a standard Poisson point process in R^d, defined by allocating to each of the Poisson points its basin of attraction with respect to the flow induced by a gravitational force field exerted by the points of the Poisson process.
arxiv  

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