CRAWDAD tum/proximityness

Dataset for evaluation of co-presence detection</oneline>We conducted a study with 126 subjects, over three months, collecting data from various sensors, that resulted in a multimodal dataset for co-presence detection. We publish a subset of the original data set in the period between 01.06.2018 and 15.06.2018 including Wi-Fi scans as proximity verification set, magnetometer as sensor data, the positions of Wi-Fi access points, and magnetometer's sensor hardware.This study has been published at IEEE PerCrowd 2020, M. Haus, A. Y. Ding, J. Ott, "Multimodal Co-Presence Detection with Varying Spatio-Temporal Granularity", in Proceedings of IEEE 3rd International Workshop on Context-awareness for Multi-device Pervasive and Mobile Computing (PerCrowd), 2020. DOI: http://doi.org/10.15783/c7-x43g-h794Tracesettum/proximityness/traceset1file: proximity_verification_set_wifi.csv.gzdescription: proximity_verification_set_wifi.csv.gz contains the scans of Wi-Fi access points including mobile device's id, relative time, and BSSID. We have anonymized the device id and BSSID with substitute identifier. In addition, we converted the absolute timestamp to a relative time using a time reference point.measurement purpose: ARRAY(0x55bfb7a81de0)tum/proximityness/traceset1 Tracetrace1: first tracetum/proximityness/traceset2file: proximity_verification_set_wifi_positions.csv.gzdescription: proximity_verification_set_wifi_positions.csv.gz contains the positions of Wi-Fi access points including BBSID and relative position. We have anonymized the BSSID and coordinates of Wi-Fi access points with substitute identifier.measurement purpose: ARRAY(0x55bfb7a821e8)tum/proximityness/traceset2 Tracetrace2: second tracetum/proximityness/traceset3file: sensor_data_magnetometer.csv.gzdescription: sensor_data_magnetometer.csv.gz contains the magnetometer's sensor data including mobile device's id, relative time, and x, y, z of magnetometer sensor. We have anonymized the device id with substitute identifier and converted the absolute timestamp to a relative time using a time reference point.measurement purpose: ARRAY(0x55bfb7a825f0)tum/proximityness/traceset3 Tracetrace3: third tracetum/proximityness/traceset4file: sensor_hardware_magnetometer.csv.gzdescription: sensor_hardware_magnetometer.csv.gz contains the magnetometer's sensor hardware including mobile device's id and hardware of magnetometer sensor. We have anonymized the device id and sensor hardware with substitute identifier.measurement purpose: ARRAY(0x55bfb7a829f8)tum/proximityness/traceset4 Tracetrace4: fourth trace