10 documents found, page 1 of 1

Automatic microstructural characterization and classification using artificial ...

Secondary phases such as Laves and carbides are formed during the final solidification stages of nickel based superalloy coatings deposited during the gas tungsten arc welding cold wire process. However, when aged at high temperatures, other phases can precipitate in the microstructure, like the c00 and d phases. This work presents a new application and evaluation of artificial intelligent techniques to classif...

A fuzzy distance-based ensemble of deep models for cervical cancer detection

Made available in DSpace on 2022-04-28T19:52:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-06-01; Background and Objective: Cervical cancer is one of the leading causes of women's death. Like any other disease, cervical cancer's early detection and treatment with the best possible medical advice are the paramount steps that should be taken to ensure the minimization of after-effects of contracting t...

Ultrasonic sensor signals and optimum path forest classifier for the microstruc...

Secondary phases, such as laves and carbides, are formed during the final solidification stages of nickel-based superalloy coatings deposited during the gas tungsten arc welding cold wire process. However, when aged at high temperatures, other phases can precipitate in the microstructure, like the 00 and phases. This work presents an evaluation of the powerful optimum path forest (OPF) classifier configured wit...

Restauração das imagens do satélite CBERS-1 utilizando POCS.

Financiadora de Estudos e Projetos; The number of applications in remote sensing has widely increased in the last years. The reason for this is mainly the high quality of imaging systems onboard. Among this new generation of satellites, the CBERS-1 (China-Brazil Earth Resources Satellite) was developed through a partnership between Brazil and China, and its main mission is to capture high-resolution images of t...

Social-spider optimization-based artificial neural networks training and its ap...

Made available in DSpace on 2015-03-18T15:55:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-01-01; Evolutionary algorithms have been widely used for Artificial Neural Networks (ANN) training, being the idea to update the neurons' weights using social dynamics of living organisms in order to decrease the classification error. In this paper, we have introduced Social-Spider Optimization to improve the ...

ECG arrhythmia classification based on optimum-path forest.

An important tool for the heart disease diagnosis is the analysis of electrocardiogram (ECG) signals, since the non-invasive nature and simplicity of the ECG exam. According to the application, ECG data analysis consists of steps such as preprocessing, segmentation, feature extraction and classification aiming to detect cardiac arrhythmias (i.e., cardiac rhythm abnormalities). Aiming to made a fast and accurate...

Oropharyngeal dysphagia identification using wavelets and optimum path forest

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:23:39Z No. of bitstreams: 0; Made available in DSpace on 2014-05-27T11:23:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-09-05; The swallowing disturbers are defined as oropharyngeal dysphagia when present specifies signals and symptoms that are characterized for alterations in any phases of swallowing. Early d...

A Markov Random Field model for combining optimum-path forest classifiers using...

Improving accuracy and speed of optimum-path forest classifier using combinatio...

Classificação supervisionada de padrões utilizando floresta de caminhos otimos

Orientador: Alexandre Xavier Falcão; Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Computação; Resumo: Padrões são geralmente representados por vetores de atributos obtidos através de amostras em uma base de dados, a qual pode estar totalmente, parcialmente ou não rotulada. Dependendo da quantidade de informação disponível dessa base de dados, podemos aplicar três tipos de técnicas para ide...