Results 41 to 50 of about 454,271 (217)

Detección automática de pólipos colorrectales con técnicas de inteligencia artificial

open access: yes, 2021
Colorectal cancer (CRC) is one of the most prevalent malignant tumors worldwide. These neoplasms originate from adenomatous lesions or polyps that must be resected to prevent the development of the disease, and that can be done through a colonoscopy ...
Martín Alonso Gómez Zuleta   +4 more
semanticscholar   +1 more source

Merit-Based Motion Planning for Autonomous Vehicles in Urban Scenarios

open access: yesSensors, 2021
Safe and adaptable motion planning for autonomous vehicles remains an open problem in urban environments, where the variability of situations and behaviors may become intractable using rule-based approaches.
Juan Medina-Lee   +3 more
doaj   +1 more source

Avaliação direta e conjunta de Sistemas de Indexação Automática por Atribuição

open access: yes, 2021
Propoe um percurso metodologico para a avaliacao direta e conjunta de sistemas de indexacao automatica por atribuicao,bem como aplica o percurso proposto na avaliacao da qualidade da indexacao dos sistemas SISA (Sistema de IndizacionSemi-Automatico) e ...
Sâmela Rouse de Brito Silva   +2 more
semanticscholar   +1 more source

Indexação automática e ontologias: identificação dos contributos convergentes na ciência da informação [PDF]

open access: yes, 2017
A indexação, humana e automática, foi desde sempre uma preocupação da área da ciência da informação (CI). A falta de consistência na indexação humana e de semântica na automática são apontadas como as grandes desvantagens.
Lopes, António Tavares   +3 more
core   +2 more sources

Optimal Control for Aperiodic Dual-Rate Systems With Time-Varying Delays

open access: yesSensors, 2018
In this work, we consider a dual-rate scenario with slow input and fast output. Our objective is the maximization of the decay rate of the system through the suitable choice of the n-input signals between two measures (periodic sampling) and their times ...
Ernesto Aranda-Escolástico   +4 more
doaj   +1 more source

Implementing Autonomous Driving Behaviors Using a Message Driven Petri Net Framework

open access: yesSensors, 2020
Most autonomous car control frameworks are based on a middleware layer with several independent modules that are connected by an inter-process communication mechanism.
Joaquín López   +3 more
doaj   +1 more source

Supervised Learning of Natural-Terrain Traversability with Synthetic 3D Laser Scans

open access: yesApplied Sciences, 2020
Autonomous navigation of ground vehicles on natural environments requires looking for traversable terrain continuously. This paper develops traversability classifiers for the three-dimensional (3D) point clouds acquired by the mobile robot Andabata on ...
Jorge L. Martínez   +4 more
doaj   +1 more source

Vision-Based Hybrid Controller to Release a 4-DOF Parallel Robot from a Type II Singularity

open access: yesSensors, 2021
The high accuracy and dynamic performance of parallel robots (PRs) make them suitable to ensure safe operation in human–robot interaction. However, these advantages come at the expense of a reduced workspace and the possible appearance of type II ...
José L. Pulloquinga   +5 more
doaj   +1 more source

Evaluación automática de código para prácticas de modelado y control utilizando Matlab Grader

open access: yesXLII JORNADAS DE AUTOMÁTICA : LIBRO DE ACTAS, 2021
La calificación automática de código y prácticas informáticas ofrece varias ventajas prácticas y pedagógicas beneficiosas y en la actualidad es posible mediante una variedad de técnicas. Recientemente, MathWorks ha introducido una solución nativa para el
Yadira Boada   +2 more
semanticscholar   +1 more source

Teleoperación Trilateral con Retardo de un Robot Móvil

open access: yesTecnología y Ciencia, 2019
Este artículo analiza la estabilidad de un sistema de teleoperación trilateral de un robot móvil. La dinámica de dos manipuladores maestros de estructura similar y un robot móvil, asimismo se tienen en cuenta retrasos variables en el tiempo y asimétricos.
Emanuel Slawiñski   +2 more
doaj   +1 more source

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