Examinando por Materia "Red neuronal"
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- PublicaciónAcceso abiertoAsistencia de investigación: Diseño de un sistema de adquisición de señales encefalográficas a partir de AFE(Universidad de Ibagué, 2019) Anaya Torres, Winston Slam; Serrano Cubides, Andrés Felipe; Gallo Sánchez, Luisa FernandaOur brain produces electrical impulses that travel through neurons, these impulses are called brain waves, depending on the mental state of the subject in question, these waves are divided into 4 types: delta, theta, alpha and beta. This project seeks to determine the level of concentration of people from an Analog Front End (AFE). To carry out this study, the compilation of the Electroencephalography (EEG) database was carried out using the Texas Instruments ADS1299EEG-FE acquisition card with its respective software. Subsequently, four classification methods were implemented in the MATLAB software, four methods were implemented, including method 1, which uses Power Spectral Density Analysis (PSD) that classifies using a neural network and a relationship between powers of alpha and beta bands, method 2, Hilbert Huang's Method (HHT) that classifies with a neural network, method 3, Common Spatial Pattern Classification (CSP), and method 4, Discrete Wavelet Transformed (DWT). These methods allow the mental state of patients to be determined (concentrated or not concentrated) with accuracy of success: FFT 85%, HHT 74%, CSP 87%, DWT 70%, for database acquired with AFE. Finally, the method that gave the best results is selected for the purpose of the project.
- PublicaciónRestringidoDiseño y construcción de un robot móvil autónomo experimental basado en inteligencia artificial(Universidad de Ibagué, 2007) Rojas Barreto, Oscar Iván; Torres Moreno, Charles Richard; Sandoval Cárdenas, Carlos Alberto; Gallo Sánchez, Luisa FernandaTo last the years the attention of the investigators has paid attention to the techniques developed in the field of the artificial intelligence for the solution of problems in a great variety of fields: the medicine, the telecommunications, development of controller of processes, atmosphere recognition, planners of trajectories, the economy, the industry, and others. In this report describes to the process of design and construction of a movable platform to interaction with environment for develop project to artificial intelligence. One describes to the methodology used for the practical conception of the project and as well as the characteristics of the hardware and software that will have the project.