Search Results - "Kwon, Okyu"
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Clustering and link prediction for mesoscopic COVID-19 transmission networks in Republic of Korea
Published in Chaos (Woodbury, N.Y.) (01-01-2023)“…We analyze the dataset of confirmed cases of severe acute respiratory syndrome coronavirus 2 (COVID-19) in the Republic of Korea, which contains transmission…”
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Evidence of the importance of contact tracing in fighting COVID-19
Published in Epidemiology and health (2022)“…We analyzed data to determine whether there are distinguishing characteristics depending on the success or failure of control for coronavirus disease 2019…”
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Effects of temperature, humidity, and diurnal temperature range on influenza incidence in a temperate region
Published in Influenza and other respiratory viruses (01-01-2020)“…Background The effect of temperature and humidity on the incidence of influenza may differ by climate region. In addition, the effect of diurnal temperature…”
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Statistical properties of COVID-19 transmission intervals in Republic of Korea
Published in Journal of the Korean Physical Society (2024)“…A transmission interval for an infectious disease is important to understand epidemic processes in complex networks. The transmission interval is defined as a…”
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Grid-based Traffic Vulnerability Analysis by Using Betweenness Centrality
Published in Journal of the Korean Physical Society (01-10-2020)“…We propose a technique to measure the impact of loss of traffic function in a particular area to surrounding areas. The proposed method is applied to the city…”
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Physical network infrastructure design based on user communication patterns
Published in The European physical journal. B, Condensed matter physics (01-10-2013)“…In order to ensure end-to-end links between the users of communication systems, the underlying physical communication network is usually designed…”
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Early detection of influenza outbreak using time derivative of incidence
Published in EPJ data science (11-09-2020)“…For mitigation strategies of an influenza outbreak, it can be helpful to understand the characteristics of regional and age-group-specific spread. In South…”
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Intervention effects in the transmission of COVID-19 depending on the detection rate and extent of isolation
Published in Epidemiology and health (23-06-2020)“…In 2020, the coronavirus disease 2019 (COVID-19) respiratory infection is spreading in Korea. In order to prevent the spread of an infectious disease, infected…”
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Scaling laws between population and a public transportation system of urban buses
Published in Physica A (01-08-2018)“…We explore the scaling relation between the population and the public transportation system of urban buses for the two cities Daejeon and Gwangju where urban…”
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Nucleation, drift, and decay of phase bubbles in period-2 oscillatory wave trains in a reaction-diffusion system
Published in Physical review letters (15-02-2008)“…This is a report on experimental observations of phase bubbles, simply closed boundaries between domains oscillating 2pi out of phase, associated with period-2…”
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Agent-based approach for generation of a money-centered star network
Published in Physica A (15-09-2008)“…The history of trade is a progression from a pure barter system. A medium of exchange emerges autonomously in the market, a position currently occupied by…”
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Asymmetric information flow between market index and individual stocks in several stock markets
Published in Europhysics letters (01-01-2012)“…In this study, we observed asymmetric information flow between the stock market index and their component stocks using a transfer entropy measure. We found…”
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Korea's social dynamics towards power supply and air pollution caused by electric vehicle diffusion
Published in Journal of cleaner production (20-12-2018)“…Korea has the highest air pollution among the Organization for Economic Co-operation and Development (OECD) countries. Since the recent environmental analysis…”
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Correlation and causality of influenza incidence pattern between regions in the case of South Korea
Published in Physica A (01-06-2020)“…We investigate the interregional relationships of influenza incidence pattern for South Korea. The time series of the number of disease incidence by region was…”
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Information flow between composite stock index and individual stocks
Published in Physica A (01-05-2008)“…We investigate the strength and the direction of information transfer in the US stock market between the composite stock price index of stock market and prices…”
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A causality between fund performance and stock market
Published in Physica A (01-02-2016)“…We investigate whether the characteristic fund performance indicators (FPI), such as the fund return, the Net asset value (NAV) and the cash flow, are…”
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User-Driven Economic Data Analysis Framework
Published in 2014 IEEE World Congress on Services (01-06-2014)“…Since Big data analysis needs specific algorithms and computation resources, general user should get analysis results unilaterally from information provider…”
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Effect of spatially correlated noise on coherence resonance in a network of excitable cells
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-12-2005)“…We study the effect of spatially correlated noise on coherence resonance (CR) in a Watts-Strogatz small-world network of Fitz Hugh-Nagumo neurons, where the…”
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The double power law in human collaboration behavior: The case of Wikipedia
Published in Physica A (01-11-2016)“…We study human behavior in terms of the inter-event time distribution of revision behavior on Wikipedia, an online collaborative encyclopedia. We observe a…”
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Intercity express bus flow in Korea and its network analysis
Published in Physica A (01-09-2012)“…We investigated the express bus flow in Korea and its network topology. By using a gravity type model, we found that the bus flow between cities depends on the…”
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