4 papers
Hierarchical organization of bursty trains in event sequences
Takayuki Hiraoka, Hang-Hyun Jo
Temporal sequences of discrete events that describe natural and social processes are often driven by non-Poisson dynamics. In addition to a heavy-tailed interevent time distributio…
Copula-based analytical results of horizontal visibility graphs for correlated time series
Jeong-Min Lee, Hang-Hyun Jo
The visibility graph (VG) algorithm and its variants have been extensively studied in the time series analysis as they transform the time series into the network of nodes and links…
Ranking dynamics in movies and music
Hyun-Woo Lee, Gerardo Iñiguez, Hang-Hyun Jo +1
Ranking systems are widely used to simplify and interpret complex data across diverse domains, from economic indicators and sports scores to online content popularity. While previo…
Measuring and Modeling Bursty Human Phenomena
Márton Karsai, Hang-Hyun Jo
Bursty dynamics characterizes systems that evolve through short active periods of several events, which are separated by long periods of inactivity. Systems with such temporal hete…