Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kevin P. O'Keeffe"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Human mobility is a key driver of infectious disease spread. Recent literature has uncovered a clear pattern underlying the complexity of human mobility in cities: $$r \cdot f$$ r · f , the product of distance traveled r and frequency of re
Externí odkaz:
https://doaj.org/article/5d70f02975b24c4db318a6a809097acd
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023105 (2023)
We investigate a population of swarmalators, mobile versions of phase oscillators that both sync in time and swarm through space. We focus on an XY-type model of identical swarmalators running on a one-dimensional ring and subject to thermal noise. W
Externí odkaz:
https://doaj.org/article/b5ab1b8961b34b3cad2fb6e50b55344a
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-13 (2017)
Collective self-organized behavior can be observed in a variety of systems such as colloids and microswimmers. Here O’Keeffe et al. propose a model of oscillators which move in space and tend to synchronize with neighboring oscillators and outline
Externí odkaz:
https://doaj.org/article/b8da2276480e4ddfae2d4512559c0bba
Publikováno v:
Journal of intelligent transportation systems (Online) (2021). doi:10.1080/15472450.2021.1897803
info:cnr-pdr/source/autori:O'Keeffe K. (1); Anklesaria S. (1); Santi P. (1) (2); Ratti C. (1)/titolo:Using reinforcement learning to minimize taxi idle times/doi:10.1080%2F15472450.2021.1897803/rivista:Journal of intelligent transportation systems (Online)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume
info:cnr-pdr/source/autori:O'Keeffe K. (1); Anklesaria S. (1); Santi P. (1) (2); Ratti C. (1)/titolo:Using reinforcement learning to minimize taxi idle times/doi:10.1080%2F15472450.2021.1897803/rivista:Journal of intelligent transportation systems (Online)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume
Taxis spend a large amount of time idle, searching for passengers. The routes vacant taxis should follow in order to minimize their idle times are hard to calculate; they depend on complex effects like passenger demand, traffic conditions, and inter-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f639ecd876b80c317216a26c3680d0e1
https://doi.org/10.1080/15472450.2021.1897803
https://doi.org/10.1080/15472450.2021.1897803
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance Attaching sensors to crowd-sourced vehicles could provide a cheap and accurate way to monitor air pollution, road quality, and other aspects of a city’s health. But in order for so-called drive-by sensing to be practically useful, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d2e3d6dacbcdce97ee97dc58037de4e
http://europepmc.org/articles/PMC6600988
http://europepmc.org/articles/PMC6600988
Publikováno v:
Bulletin of mathematical biology. 84(3)
Seasonal influenza presents an ongoing challenge to public health. The rapid evolution of the flu virus necessitates annual vaccination campaigns, but the decision to get vaccinated or not in a given year is largely voluntary, at least in the USA, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ba8de80f087b04624f3fc071e246ac20
https://pubmed.ncbi.nlm.nih.gov/35099660
https://pubmed.ncbi.nlm.nih.gov/35099660
Seasonal influenza presents an ongoing challenge to public health. The rapid evolution of the flu virus necessitates annual vaccination campaigns, but the decision to get vaccinated or not in a given year is largely voluntary, at least in the United
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28103266b95e86b43d07e6e26d10010d
http://arxiv.org/abs/2101.07926
http://arxiv.org/abs/2101.07926
Publikováno v:
Unifying Themes in Complex Systems X ISBN: 9783030673178
We analyse the darkweb and find its structure is unusual. For example, \( \sim \)87\(\%\) of darkweb sites never link to another site. To call the darkweb a “web” is thus a misnomer—it’s better described as a set of largely isolated dark silo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c20b8a48ec54e3f92d8d67bfe138a4b5
https://doi.org/10.1007/978-3-030-67318-5_22
https://doi.org/10.1007/978-3-030-67318-5_22
Publikováno v:
Micro- and Nanotechnology Sensors, Systems, and Applications XI.
From fireflies to heart cells, many systems in Nature show the remarkable ability to spontaneously fall into synchrony. By imitating Nature's success at self-synchronizing, scientists have designed cost-effective methods to achieve synchrony in the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73f25d0bad8a67b8ac55b804e7f4d709
https://doi.org/10.1117/12.2518682
https://doi.org/10.1117/12.2518682
Publikováno v:
Physica. A
562 (2021).
info:cnr-pdr/source/autori:K. O'Keefe (1); P. Santi (2); B. Wang (1); C. Ratti (1)/titolo:Urban Sensing as a random search process/doi:/rivista:Physica. A (Print)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:562
562 (2021).
info:cnr-pdr/source/autori:K. O'Keefe (1); P. Santi (2); B. Wang (1); C. Ratti (1)/titolo:Urban Sensing as a random search process/doi:/rivista:Physica. A (Print)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:562
We study a new random search process: the taxi drive. The motivation for this process comes from urban sensing in which sensors are mounted on moving vehicles such as taxis, allowing urban environments to be opportunistically monitored. Inspired by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a4ce844826acb8ba80f1899ce9f2fbb
https://doi.org/10.1016/j.physa.2020.125307
https://doi.org/10.1016/j.physa.2020.125307