Results 41 to 50 of about 1,932,383 (293)

Height estimation improvement via motion compensation based on sub-aperture method for interferometry SAR system

open access: yesThe Journal of Engineering, 2019
Baseline is the key factor for highly accuracy terrain elevation measurement in InSAR system. Variation of baseline attitude induced by aircraft's unstable motion leads to phase errors varying along the aperture.
Yue Wang   +4 more
doaj   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

Energy Efficient Resource Allocation in Cloud Computing Environments

open access: yesIEEE Access, 2016
Power consumption is one of the major concerns for the cloud providers. The issue of disorganized power consumption can be categorized into two main groups: one caused by server operations and one occurred during the network communications. In this paper,
Shahin Vakilinia   +2 more
doaj   +1 more source

A BiLSTM cardinality estimator in complex database systems based on attention mechanism

open access: yesCAAI Transactions on Intelligence Technology, 2022
An excellent cardinality estimation can make the query optimiser produce a good execution plan. Although there are some studies on cardinality estimation, the prediction results of existing cardinality estimators are inaccurate and the query efficiency ...
Qiang Zhou   +8 more
doaj   +1 more source

Asymptotics and optimal bandwidth selection for highest density region estimation [PDF]

open access: yes, 2009
We study kernel estimation of highest-density regions (HDR). Our main contributions are two-fold. First, we derive a uniform-in-bandwidth asymptotic approximation to a risk that is appropriate for HDR estimation. This approximation is then used to derive
Samworth, R. J., Wand, M. P.
core   +5 more sources

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Quickest attack detection in smart grid based on sequential Monte Carlo filtering

open access: yesIET Smart Grid, 2020
Quick and accurate detection of cyber-attacks is key to the normal operation of the smart grid system. In this study, joint state estimation and sequential attack detection method for a given bus with grid frequency drift is proposed that utilises the ...
Leian Chen, Xiaodong Wang
doaj   +1 more source

Parametric estimation. Finite sample theory [PDF]

open access: yesThe Annals of Statistics, 2012
Published in at http://dx.doi.org/10.1214/12-AOS1054 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
openaire   +5 more sources

Linear estimation in Krein spaces. Part II. Applications [PDF]

open access: yes, 1996
We have shown that several interesting problems in H∞-filtering, quadratic game theory, and risk sensitive control and estimation follow as special cases of the Krein-space linear estimation theory developed in Part I. We show that all these problems can
Hassibi, Babak   +2 more
core  

Estimation in high dimensions: a geometric perspective [PDF]

open access: yes, 2014
This tutorial provides an exposition of a flexible geometric framework for high dimensional estimation problems with constraints. The tutorial develops geometric intuition about high dimensional sets, justifies it with some results of asymptotic convex ...
A. Ai   +44 more
core   +2 more sources

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