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dc.rights.licenseAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.contributor.advisorPedraza Bonilla, Cesar Augusto
dc.contributor.advisorGutierrez Osorio, Camilo
dc.contributor.authorSuat Rojas, Nestor Eduardo
dc.date.accessioned2022-02-10T14:06:14Z
dc.date.available2022-02-10T14:06:14Z
dc.date.issued2021
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/80927
dc.descriptionilustraciones, gráficas, mapas, tablas
dc.description.abstractLa detección de accidentes de tránsito es una estrategia importante para que los gobiernos implementen políticas que reduzcan este fenómeno. Usualmente usan técnicas como procesamiento de imágenes, dispositivos RFID, y otras. La detección en redes sociales ha surgido como una alternativa de bajo costo. Sin embargo las redes sociales presentan varios retos y desafíos como uso de lenguaje informal y falta de ortografía. Este trabajo propone un método para extraer y analizar los datos de accidentes de tránsito desde Twitter. Cuatro fases componen el método. La primera fase establece los mecanismos para obtener datos. El segundo consiste en representar vectorialmente los mensajes y clasificarlos como accidentes de tránsito o no. La tercera usa técnicas de reconocimiento de entidades nombradas para la detección de ubicaciones. En la cuarta estas ubicaciones pasan por un geocoder que devuelve sus coordenadas geográficas. Aplicamos este método para la ciudad de Bogotá y comparamos los datos de Twitter con la fuente oficial de tránsito, las comparaciones muestran una influencia en Twitter sobre la zona comercial e industrial de la ciudad. Los resultados revelan la efectividad de los accidentes reportados en Twitter como información adicional y su uso debe considerarse como fuentes complementarias a los métodos de detección existentes. (Texto tomado de la fuente)
dc.description.abstractThe detection of traffic accidents is an important strategy for governments to implement policies that reduce this phenomenon. They usually use techniques like image processing, RFID devices, and others. Social media detection has emerged as a low-cost alternative. However, social media presents several challenges such as use of non-formal language and misspelling. This work proposes a method to extract and analyze traffic accident data from Twitter. The method is composed of four phases. The first phase establishes the mechanisms for obtaining data. The second consists of representing the messages in vectors and classif- ying them as traffic accidents or not. The third uses named entity recognition techniques for location detection. In the fourth, these locations go through a geocoder that returns their geographic coordinates. We apply this method for the city of Bogota and compare the data on Twitter with the official transit source, the comparisons show an influence on Twitter on the commercial and industrial area of the city. The results reveal the effectiveness of the accidents reported on Twitter as additional information and their use should be considered as complementary sources to the existing detection methods.
dc.format.extentxi, 60 páginas
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia
dc.rightsDerechos reservados al autor, 2021
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc000 - Ciencias de la computación, información y obras generales::004 - Procesamiento de datos Ciencia de los computadores
dc.titleExtracción y análisis de información de accidentes de tránsito desde redes sociales
dc.typeTrabajo de grado - Maestría
dc.type.driverinfo:eu-repo/semantics/masterThesis
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.publisher.programBogotá - Ingeniería - Maestría en Ingeniería - Ingeniería de Sistemas y Computación
dc.contributor.refereeSuárez Páez, Julio Ernesto
dc.contributor.researchgroupPlas Programming languages And Systems
dc.description.degreelevelMaestría
dc.description.degreenameMagíster en Ingeniería - Ingeniería de Sistemas y Computación
dc.description.methodsEste trabajo propone un método para extraer y analizar los datos de accidentes de tránsito desde Twitter. Cuatro fases componen el método. La primera fase establece los mecanismos para obtener datos. El segundo consiste en representar vectorialmente los mensajes y clasificarlos como accidentes de tránsito o no. La tercera usa técnicas de reconocimiento de entidades nombradas para la detección de ubicaciones. En la cuarta estas ubicaciones pasan por un geocoder que devuelve sus coordenadas geográficas.
dc.description.researchareaComputación aplicada
dc.identifier.instnameUniversidad Nacional de Colombia
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourlhttps://repositorio.unal.edu.co/
dc.publisher.departmentDepartamento de Ingeniería de Sistemas e Industrial
dc.publisher.facultyFacultad de Ingeniería
dc.publisher.placeBogotá, Colombia
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotá
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalSistemas de transporte inteligente
dc.subject.proposalRedes sociales
dc.subject.proposalAccidente de tránsito
dc.subject.proposalSensores sociales
dc.subject.proposalProcesamiento de lenguaje natural
dc.subject.proposalAprendizaje automático
dc.subject.proposalMinería de texto
dc.subject.proposalReconocimiento de entidades nombradas
dc.subject.proposalTwitter
dc.subject.proposalintelligent transportation system
dc.subject.proposalSocial media
dc.subject.proposalTraffic accident
dc.subject.proposalSocial sensors
dc.subject.proposalNatural language processing
dc.subject.proposalMachine learning
dc.subject.proposalText mining
dc.subject.proposalNamed entity recognition
dc.subject.proposalTwitter
dc.subject.unescoAnálisis de datos
dc.subject.unescoData analysis
dc.subject.unescoSeguridad del transporte
dc.subject.unescoTransport safety
dc.title.translatedExtraction and analysis of traffic accident data from social networks
dc.type.coarhttp://purl.org/coar/resource_type/c_bdcc
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.contentText
dc.type.redcolhttp://purl.org/redcol/resource_type/TM
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2
dcterms.audience.professionaldevelopmentInvestigadores
dcterms.audience.professionaldevelopmentPúblico general


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Atribución-NoComercial-SinDerivadas 4.0 InternacionalEsta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial 4.0.Este documento ha sido depositado por parte de el(los) autor(es) bajo la siguiente constancia de depósito