Results 61 to 70 of about 2,028,161 (229)

Semantic Attention Guided Hierarchical Decision Network for Age Estimation

open access: yesApplied Sciences
Image-based human age estimation has been a hot topic in the field of face attribute recognition. As the greatest dilemma of age estimation is the similar appearance of adjacent age labels, this paper presents a two-stage age estimation model based on ...
Xincheng Qiao, Chunlong Hu, Bin Qin
doaj   +1 more source

RELIABILITY BIVARIATE ANALYSIS BASED ON COPULAS ANÁLISIS BIVARIADO DE CONFIABILIDAD BASADO EN CÓPULAS

open access: yesRevista Colombiana de Estadística, 2011
In industry, reliability studies are done to assure the quality level of products manufactured. Sometimes these products have several failure modes that must be considered in reliability analysis.
Monjardin Pedro Enrique   +1 more
doaj  

Bounded Risk Estimation of the Gamma Scale Parameter in a Purely Sequential Sampling Procedure

open access: yesJournal of Statistical Theory and Applications (JSTA)
We consider the purely sequential procedure for estimating the scale parameter of a gamma distribution with known shape parameter, when the risk function is bounded by the known preassigned number.
Eisa Mahmoudi   +2 more
doaj   +1 more source

Estimation under two stage random permutation models

open access: yesMetrika, 1985
In a simple two-stage random permutation model the units which have fixed but unknown values \(x_{ij}\) of the study variate x, are labelled randomly in two stages, first the psu's are labelled at random and then the ssu's within each of the psu's are labelled at random independently.
Mukhopadhyay, P., Padmawar, V.R.
openaire   +2 more sources

A Two-Stage Framework for Distortion Information Estimation and Underwater Image Restoration

open access: yesPhotonics
This work introduces a two-stage framework, named the Distorted underwater image Restoration Network (DR-Net), to address the complex degradation of underwater images caused by turbulence, water flow fluctuations, and optical properties of water.
Jianming Liu   +7 more
doaj   +1 more source

Sleep Stage Estimation Comparing Own Past Heartrate or Others' Heartrate

open access: yesSICE Journal of Control, Measurement, and System Integration, 2018
To increase the accuracy of real-time sleep stage estimation when only a small number of sleep data can be obtained such as after going to bed, the information for the subject's own sleep and other's past sleep can be used.
Yusuke Tajima   +4 more
doaj   +1 more source

Channel Estimation and Data Detection in the Presence of Phase Noise in MIMO-OFDM Systems With Independent Oscillators

open access: yesIEEE Access, 2017
In this paper, we propose the mitigating scheme to reduce the effects of phase noise in multi-input multi-output-orthogonal frequency division multiplexing system with independent oscillator in each RF chain.
Tae-Jun Lee, Young-Chai Ko
doaj   +1 more source

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