5 citations · 7 across the 4 of their papers we have counts for
4 papers
Proper Interpretation of Heaps' and Zipf's Laws
Kim Chol-jun
We checked that the distribution of words in text should uniform, which gives Heaps' law as natural result, that is, the number of types of words can be expressed as a power law of…
The power-law distribution in the geometrically growing system: Statistic of the COVID-19 pandemic
Chol-Jun Kim
The power-law distribution is ubiquitous and its mechanism seems to be various. We find a general mechanism for the distribution. The distribution of a geometrically growing system…
Stable Solar Periodicities: The Time Stability
Kim Chol-jun
We show that while the Fourier transform can figure only an "intensity" of a periodic signal, there is an additional information embedded, which is a "coherence" of the signal. Sup…
Stability of cycle in samplogram and spurious cycles in solar activity
Kim Chol-jun
The spectral analysis with stochastic significance cannot distinguish the spurious cycles effectively, because a non-stationary signal can make a significant peak in spectrum. I sh…