422 citations · 1.1k across the 14 of their papers we have counts for
5 papers · 1 filter
Offline Behaviors of Online Friends
Piotr Sapiezynski, Arkadiusz Stopczynski, David Kofoed Wind +2
In this work we analyze traces of mobility and co-location among a group of nearly 1000 closely interacting individuals. We attempt to reconstruct the Facebook friendship graph, Fa…
Inferring Person-to-person Proximity Using WiFi Signals
Piotr Sapiezynski, Arkadiusz Stopczynski, David Kofoed Wind +2
Today's societies are enveloped in an ever-growing telecommunication infrastructure. This infrastructure offers important opportunities for sensing and recording a multitude of hum…
Tracking Human Mobility using WiFi signals
Piotr Sapiezynski, Arkadiusz Stopczynski, Radu Gatej +1
We study six months of human mobility data, including WiFi and GPS traces recorded with high temporal resolution, and find that time series of WiFi scans contain a strong latent lo…
Privacy in Sensor-Driven Human Data Collection: A Guide for Practitioners
Arkadiusz Stopczynski, Riccardo Pietri, Alex Pentland +2
In recent years, the amount of information collected about human beings has increased dramatically. This development has been partially driven by individuals posting and storing da…
Privacy for Personal Neuroinformatics
Arkadiusz Stopczynski, Dazza Greenwood, Lars Kai Hansen +1
Human brain activity collected in the form of Electroencephalography (EEG), even with low number of sensors, is an extremely rich signal. Traces collected from multiple channels an…