Error Matrix
Mostrando 1-12 de 82 artigos, teses e dissertações.
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1. Damped Jacobi Methods Based on Two Different Matrices for Signal Detection in Massive MIMO Uplink
Abstract For massive multiple-input multiple-output (m-MIMO) uplink, the performances of the linear minimum mean-square error (MMSE) detector are considered near optimal, and they occupy benchmark place for most linear iterative detectors. However, the MMSE algorithm is known by its load computational complexity due to the implication of large-scale matrix i
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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2. Elevated Lipoprotein(A) in Children and Adolescents: Early Identification is Key for Successful Intervention
The usefulness of molecularly imprinted polymer assisted paper spray ionization mass spectrometry (MIP-PSI-MS) for the determination of methamphetamine in urine has been demonstrated. MIP-PSI-MS is a method in which a MIP is synthesized on the surface of a paper, producing a chemically selective paper surface with molecular recognition sites for a target ana
Int. J. Cardiovasc. Sci.. Publicado em: 2021-02
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3. Determining Methamphetamine in Urine by Molecularly Imprinted Polymer Assisted Paper Spray Ionization Mass Spectrometry
The usefulness of molecularly imprinted polymer assisted paper spray ionization mass spectrometry (MIP-PSI-MS) for the determination of methamphetamine in urine has been demonstrated. MIP-PSI-MS is a method in which a MIP is synthesized on the surface of a paper, producing a chemically selective paper surface with molecular recognition sites for a target ana
J. Braz. Chem. Soc.. Publicado em: 2021-02
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4. Structural validity of the Brazilian version of the Western Ontario and McMaster Universities Osteoarthritis Index among patients with knee osteoarthritis
BACKGROUND: The original structure of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) has been contested in several languages. OBJECTIVE: To assess the structural validity of the Brazilian version of WOMAC among patients with knee osteoarthritis. DESIGN AND SETTING: Structural validity study conducted at physiotherapy clinics an
Sao Paulo Med. J.. Publicado em: 2020-10
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5. MULTILEVEL NONLINEAR MIXED-EFFECTS MODEL AND MACHINE LEARNING FOR PREDICTING THE VOLUME OF Eucalyptus SPP. TREES
ABSTRACT Volumetric equations is one of the main tools for quantifying forest stand production, and is the basis for sustainable management of forest plantations. This study aimed to assess the quality of the volumetric estimation of Eucalyptus spp. trees using a mixed-effects model, artificial neural network (ANN) and support-vector machine (SVM). The datab
CERNE. Publicado em: 2020-03
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6. Modelos estatísticos para geração da Planta de Valores Genéricos: uma aplicação em município de pequeno porte
Resumo Importante fonte de arrecadação dos municípios, o IPTU tem como base de cálculo o valor venal do imóvel, estabelecido pela Planta de Valores Genéricos (PVG), a qual está desatualizada na maior parte dos municípios brasileiros. Assim, o objetivo deste trabalho foi utilizar a econometria espacial para gerar um modelo que permita determinar o val
urbe, Rev. Bras. Gest. Urbana. Publicado em: 09/12/2019
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7. Considering the impact of observation error correlation in ensemble square-root Kalman filter
Abstract Data assimilation has been developed into an effective technology that can utilize a large number of multi-source unconventional data. It cannot only provide the initial field for the ocean numerical prediction model, but also construct the ocean reanalysis datasets and provide the design basis for the ocean observation plan. In data assimilation, t
Braz. j. oceanogr.. Publicado em: 02/12/2019
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8. Reliability and validity of the Brazilian version of the HSOPSC: a reassessment study
Resumo: O estudo teve como objetivo reavaliar as propriedades psicométricas da versão do Hospital Survey on Patient Safety Culture (HSOPSC) adaptada para o português, para uso no contexto brasileiro. Foi realizado um estudo observacional, transversal, em um hospital particular sem fins lucrativos, referência em segurança do paciente, localizado em uma m
Cad. Saúde Pública. Publicado em: 22/08/2019
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9. Principal Component Analysis and Factor Analysis: differences and similarities in Nutritional Epidemiology application
RESUMO: Introdução: Métodos estatísticos de análise multivariada, tais como Análise de Componentes Principais e Análise Fatorial, têm sido cada vez mais utilizados nos estudos em Epidemiologia Nutricional, no entanto equívocos quanto à escolha e aplicação dos métodos são observados. Objetivos: Os objetivos deste estudo são comparar e apres
Rev. bras. epidemiol.. Publicado em: 29/07/2019
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10. Research of the Photoelectric Tracking and Pointing Platform Based on the Servo Control System
ABSTRACT: To improve the speed and accuracy of the photoelectric tracking and pointing platform stable tracking, we took the three-axis photoelectric tracking platform, of which the coupling among the rings is ignored, as the research object. Considering the effects of various disturbances, the stable tracking double closed-loop servo control system was buil
J. Aerosp. Technol. Manag.. Publicado em: 18/03/2019
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11. Allometric models to biomass in restoration areas in the Atlantic rain forest
ABSTRACT The objective of the study was to present mathematical models and strategies for fitting equations to estimate dry biomass for tree species in forest restoration areas. The presence of outliers was analyzed in each fitted equation using values of the matrix H, leverage points, means of standard and studentized residuals, and of influential points th
Floresta Ambient.. Publicado em: 01/02/2018
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12. Artificial neural networks and linear discriminant analysis in early selection among sugarcane families
Abstract One of the major challenges in sugarcane breeding programs is an efficient selection of genotypes in the initial phase. The purpose of this study was to compare modelling by artificial neural networks (ANN) and linear discriminant analysis (LDA) as alternatives for the selection of promising sugarcane families based on the indirect traits number of
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12