Life Sciences
3.6
Mathematicians unlock pattern in random walks with memory
A new mathematical model describes how systems with long-term memory behave—moving beyond the assumption that events are independent. The work could improve predictions in network dynamics, disease spread, and financial markets where past choices influence future outcomes.
Originaltitel: Bernoulli Elephant Random Walks
Abstrakt
<p>In the simple random walk, the steps are independent. In contrast, in the elephant random walk every step depends on the whole past. One extension, as suggested by Bercu et al. [4], is to allow for stops/delays, that is, to put mass at zero. The present paper is devoted to, what we call, the <em>Bernoulli elephant random walk</em>, which comes up naturally in that context.</p>