Szell, Michael (CEU)
Mathematical modelling of human
mobility
I give two examples of applied mathematical modeling on the topic of
human mobility. First, we study mobility of human-controlled characters over several
years on a network-shaped virtual universe of a self-developed massive
multiplayer online game. Mobility of players is highly sub-diffusive and
significantly deviates from mobility patterns of random walkers simulated on
the same topology. This anomalous diffusion stems from a tendency to return to
already visited nodes, as well as from a clear preference to avoid movement
between different clusters. Second, we introduce the notion of shareability
network, which allows us to model the collective benefits of sharing rides as a
function of passenger inconvenience, and to efficiently compute optimal sharing
strategies on massive datasets. We apply this framework to a dataset of
millions of taxi trips taken in New York City, showing that with increasing but
still relatively low passenger discomfort, cumulative trip length can be cut by
40% or more.
The talk is held in English!
Az előadás nyelve angol!
Date: Sep 18, Tuesday 4:15pm
Place: BME, Building „Q”, Room QBF13