CITY PATH TOMOGRAPHY: RECONSTRUCTING SQUARE ROAD NETWORK FROM ARTIFICIAL USERS MOBILE PHONE DATA.
Population mobility can be studied readily and cheaply using cellphone data, since people's mobility can be approximately mapped into tower-mobile registries. We model people moving in a grid-like city, where edges of the grid are weighted and paths are chosen according to overall weights between or...
| Publicado en: | Revista Cubana de Física Vol. 40; no. 2; pp. 69 - 75 |
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| Autores principales: | , |
| Formato: | Artículo |
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Universidad de La Habana
dic2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=lth&AN=174986987&site=ehost-live header: @attributes: shortDbName: lth uiTerm: 174986987 longDbName: MedicLatina uiTag: AN controlInfo: bkinfo: jinfo: jid: 02539268 UEW jtl: Revista Cubana de Física issn: 02539268 maglogo: N pubinfo: dt: dic2023 vid: 40 iid: 2 pid: 21208 pub: Universidad de La Habana artinfo: ui: 174986987 ppf: 69 ppct: 6 formats: fmt: @attributes: type: P size: 748KB tig: atl: CITY PATH TOMOGRAPHY: RECONSTRUCTING SQUARE ROAD NETWORK FROM ARTIFICIAL USERS MOBILE PHONE DATA. aug: au: RODRÍGUEZ, A. LAGE-CASTELLANOS, A. affil: Center for Complex Systems, Faculty of Physics, University of Havana su: Cities & towns Tomography Cell phones Residential mobility Statistical physics Urban renewal Statistical models Telecommunication Computer simulation Trauma registries Cell phone users Human behavior sug: subj: Cities & towns Tomography Cell phones Residential mobility Statistical physics Urban renewal Statistical models Telecommunication Computer simulation Trauma registries Cell phone users Human behavior ab: Population mobility can be studied readily and cheaply using cellphone data, since people's mobility can be approximately mapped into tower-mobile registries. We model people moving in a grid-like city, where edges of the grid are weighted and paths are chosen according to overall weights between origin and destination. Cellphone users leave sparse signals in random nodes of the grid as they move by, mimicking the type of data collected from the tower-cellphone interactions. From this noisy data we seek to build a model of the city, i.e. to predict probabilities of paths from origin to destination. We focus on the simplest case where users move along shortest paths (no loops, no going backwards). In this simplied setting, we are able to infer the underlying weights of the edges (akin to road transitability) with an inverse statistical mechanic model. La movilidad de la población se puede estudiar de manera fácil y económica utilizando datos de la telefonía celular, mapeando la movilidad de las personas en registros de torres moviles. Se modela el movimiento de las personas en una ciudad en forma de red cuadrada, donde los nodos y sus conexiones se ponderan y las rutas se eligen de acuerdo con los pesos generales entre el origen y el destino. Los usuarios dejan senales dispersas en nodos de la red a medida que avanzan, imitando el tipo de datos recopilados de las interacciones entre la torre y el telefono celular. Utilizando estos datos buscamos construir un modelo de la ciudad, es decir, predecir probabilidades de caminos desde el origen hasta el destino. Se estudia el caso donde los usuarios se mueven a lo largo de los caminos mas cortos (sin lazos, sin retroceder). En esta configuracion simplificada, podemos inferir los pesos del modelo (similar a la transitabilidad de la carretera) con un modelo físico estadístico inverso. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Revista Cubana de Física is the property of Universidad de La Habana and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. item: Revista Cubana de Física holder: Universidad de La Habana dt: @attributes: year: 2023 holdings: @attributes: islocal: N |
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