50 citations · 141 across the 19 of their papers we have counts for
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physics.data-an2022★ 1 cited
Analysis and application of multiplicative stochastic process with a sample-dependent lower bound
Ken Yamamoto, Yoshihiro Yamazaki
A multiplicative stochastic process with the lower bound lognormally distributed is investigated. For the process, the model is constructed, and its distribution function (involvin…
physics.data-an2013★ 50 cited
Statistical properties of position-dependent ball-passing networks in football games
Takuma Narizuka, Ken Yamamoto, Yoshihiro Yamazaki
Statistical properties of position-dependent ball-passing networks in real football games are examined. We find that the networks have the small-world property, and their degree di…
physics.data-an2009★ 3 cited
Numerical Approach to Central Limit Theorem for Bifurcation Ratio of Random Binary Tree
Ken Yamamoto, Yoshihiro Yamazaki
A central limit theorem for binary tree is numerically examined. Two types of central limit theorem for higher-order branches are formulated. A topological structure of a binary tr…