2 papers
math.CO2025
An Erdős--Szekeres type result for words with repeats
Kyle Celano, Abigail Ollson, Niraj Velankar +1
We prove an Erdős--Szekeres type result for finite words over with repeated values. Specifically, we define a \emph{repeat} in a word to be an occurrence of a value wh…
cs.LG2025
Global Permutation Entropy
Abhijeet Avhale, Joscha Diehl, Niraj Velankar +1
Permutation Entropy, introduced by Bandt and Pompe, is a widely used complexity measure for real-valued time series that is based on the relative order of values within consecutive…