No abstract

Several threats are propagated by malicious websites largely classified as phishing. Its function is important information for users with the purpose of criminal practice. In summary, phishing is a technique used on the Internet by criminals for online fraud. The Artificial Neural Networks (ANN) are computational models inspired by the structure of the brain and aim to simulate human behavior, such as learning, association, generalization and abstraction when subjected to training. In this paper, an ANN Multilayer Perceptron (MLP) type was applied for websites classification with phishing characteristics. The results obtained encourage the application of an ANN-MLP in the classification of websites with phishing characteristics.

The main objective of this paper is to approximate the temporal evolution function of the Lorenz system using Artificial Neural Networks (ANN) type Multilayer Perceptron (MLP). Apart from this main objective, as a specific objective, presents the basic concepts of ANN, a brief history of chaos theory and the Lorentz system. The methodology used in the structuring of this paper was defined as bibliographic and experimental. Currently, there is great interest in models of neural networks to solve unconventional and complex problems, in this context the ANN have emerged as an alternative for numerous applications in various areas of knowledge. The results of the experiments indicate positively to the use of ANN. It is hoped that this paper encourage the use of ANN in complex applications where learning, association, generalization and abstraction are needed to support decision-making. It was concluded that the use of ANN could be an alternative for solving problems involving approximation functions.

A container crane has the function of transporting containers from one point to another point. The difficulty of this task lies in the fact that the container is connected to the bridge crane by cables, causing an opening angle while the container is being transported, interfering with the operation at high speeds due to oscillation that occurs at the end point, which could cause accidents. Fuzzy logic (FL) is a mathematical theory that aims to allow the modeling of approximate way of thinking, imitating the human ability to make decisions in uncertain and imprecise environments. The Artificial Neural Networks (ANN) models are made of simple processing units, called artificial neurons, which calculate mathematical functions. The aim of the paper was to present a container crane controller pre-project using an artificial neural network type Multilayer Perceptron (MLP) combined with FL, referred to as Neuro Fuzzy Network (NFN).

O objetivo deste artigo é aplicar inteligência computacional com técnicas de data mining para identificar através da tarefa de clusterização e classificação o perfil de empregados absenteístas e presenteístas, utilizando o algoritmo Density Based Spatial Clustering of Applications With Noise (DBSCAN) e Redes Neurais Artificiais (RNAs) na descoberta de conhecimento em base de dados. O Avanço da ciência computacional permite o processamento de grande quantidade de dados, o que motiva o estudo em questão, o termo data mining surgiu devido às semelhanças entre a procura de informação importante numa base de dados e o ato de minerar a montanha para encontrar um veio de ouro. Data mining é o elemento responsável pela extração eficiente do conhecimento implícito e útil contido em um banco de dados. O Absenteísmo é o não comparecimento ao trabalho, conforme o programado. No Presenteísmo há a presença do empregado no trabalho, ainda que doente, contudo, suas atividades são improdutivas. O algoritmo DBSCAN foi aplicado em data mining para clusterizar e a RNA foi aplicada para classificar níveis de perfis absenteístas e presenteístas. Os resultados apresentados mostraram que a aplicação das técnicas no data mining foi satisfatória, o que confirma a utilização das técnicas como uma opção a ser utilizada neste tipo de problema. A metodologia adotada na estruturação deste artigo foi definida como bibliográfica, exploratória e experimental.