1.9k citations · 6.9k across the 124 of their papers we have counts for
21 papers · 1 filter
Power-grid stability predictions using transferable machine learning
Seong-Gyu Yang, Beom Jun Kim, Seung-Woo Son +1
Complex network analyses have provided clues to improve power-grid stability with the help of numerical models. The high computational cost of numerical simulations, however, has i…
Consistency landscape of network communities
Daekyung Lee, Sang Hoon Lee, Beom Jun Kim +1
The concept of community detection has long been used as a key device for handling the mesoscale structures in networks. Suitably conducted community detection reveals various embe…
Co-sponsorship analysis of party politics in the 20th National Assembly of Republic of Korea
Seung Ki Baek, Jonghoon Kim, Song Sub Lee +2
We investigate co-sponsorship among lawmakers by applying the principal-component analysis to the bills introduced in the 20th National Assembly of Korea. The most relevant factor…
Scaling relations and finite-size scaling in gravitationally correlated lattice percolation models
Chen-Ping Zhu, Long-Tao Jia, Long-Long Sun +4
In some systems, the connecting probability (and thus the percolation process) between two sites depends on the geometric distance between them. To understand such process, we prop…
Generalized gravity model for human migration
Hye Jin Park, Woo Seong Jo, Sang Hoon Lee +1
The gravity model (GM) analogous to Newton's law of universal gravitation has successfully described the flow between different spatial regions, such as human migration, traffic fl…
Evolution of popularity in given names
Mi Jin Lee, Woo Seong Jo, Il Gu Yi +2
An individual's identity in a human society is specified by his or her name. Differently from family names, usually inherited from fathers, a given name for a child is often chosen…
International Transmission of Shocks and Fragility of a Bank Network
Xiaobing Feng, Woo Seong Jo, Beom Jun Kim
The weighted and directed network of countries based on the number of overseas banks is analyzed in terms of its fragility to the banking crisis of one country. We use two differen…
Surname statistics - Crossing the boundary between disciplines
Seung Ki Baek, Beom Jun Kim
Regarding "Surname distribution in population genetics and in statistical physics" by Rossi, we add comments on the following two points: One is a difference in his renormalization…
Universal statistics of the knockout tournament
Seung Ki Baek, Il Gu Yi, Hye Jin Park +1
We study statistics of the knockout tournament, where only the winner of a fixture progresses to the next. We assign a real number called competitiveness to each contestant and fin…
Matchmaker, Matchmaker, Make Me a Match: Migration of Populations via Marriages in the Past
Sang Hoon Lee, Robyn Ffrancon, Daniel M. Abrams +2
The study of human mobility is both of fundamental importance and of great potential value. For example, it can be leveraged to facilitate efficient city planning and improve preve…
Analysis of one-dimensional Yut-Nori game: winning strategy and avalanche-size distribution
Hye Jin Park, Hasung Sim, Hang-Hyun Jo +1
In the Korean traditional board game Yut-Nori, teams compete by moving their pieces on the two-dimensional game board, and the team whose all pieces complete a round trip on the bo…
Allometric Exponent and Randomness
Su Do Yi, Beom Jun Kim, Petter Minnhagen
An allometric height-mass exponent gives an approximative power-law relation between the average mass and the height , for a sample of individuals.…
Phase transition in a coevolving network of conformist and contrarian voters
Su Do Yi, Seung Ki Baek, Chen-Ping Zhu +1
In the coevolving voter model, each voter has one of two diametrically opposite opinions, and a voter encountering a neighbor with the opposite opinion may either adopt it or rewir…
Dworkin's Paradox
Seung Ki Baek, Jung-Kyoo Choi, Beom Jun Kim
How to distribute welfare in a society is a key issue in the subject of distributional justice, which is deeply involved with notions of fairness. Following a thought experiment by…
Traveling Baseball Players' Problem in Korea
Hyang Min Jeong, Sang-Woo Kim, Aaram J. Kim +3
We study the so-called the traveling tournament problem (TTP), to find an optimal tournament schedule. Differently from the original TTP, in which the total travel distance of all…
The Ten Thousand Kims
Seung Ki Baek, Petter Minnhagen, Beom Jun Kim
In the Korean culture the family members are recorded in special family books. This makes it possible to follow the distribution of Korean family names far back in history. It is h…
Flow improvement caused by agents who ignore traffic rules
Seung Ki Baek, Petter Minnhagen, Sebastian Bernhardsson +2
A system of agents moving along a road in both directions is studied numerically within a cellular-automata formulation. An agent steps to the right with probability or to the…
Korean Family Name Distribution in the Past
Hoang Ahn Tuan Kiet, Seung Ki Baek, Hawoong Jeong +1
We empirically study the genealogical trees of ten families for about five centuries in Korea. Although each family tree contains only the paternal part, the family names of women…
Family name distributions: Master equation approach
Seung Ki Baek, Hoang Anh Tuan Kiet, Beom Jun Kim
Although cumulative family name distributions in many countries exhibit power-law forms, there also exist counterexamples. The origin of different family name distributions across…
Role of Activity in Human Dynamics
Tao Zhou, Hoang Anh Tuan Kiet, Beom Jun Kim +2
The human society is a very complex system; still, there are several non-trivial, general features. One type of them is the presence of power-law distributed quantities in temporal…
Network Marketing on a Small-World Network
Beom Jun Kim, Tackseung Jun, Jeong-Yoo Kim +1
We investigate a dynamic model of network marketing in a small-world network structure artificially constructed similarly to the Watts-Strogatz network model. Different from the tr…