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

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