Internally, we collect personal data in line with GDPR including identification of your browser (content of the UserAgent HTTP header), your IP address, and timestamp of the measurement linked to the measurement data. These data are necessary for research purposes to evaluate the validity of the measurement, the context of the measurement, and perform the measurement. We will also use the measurement data to improve JShelter. We process these data with your consent.

These personal data are controlled by Brno University of Technology, Antonínská 548/1, 601 90 Brno, Czech Republic. Data protection officer is Mgr. Lucie Schimmelová, BUT, Antonínská 548/1, 601 90 Brno, Czech Republic, e-mail poverenec@vut.cz.

Direct contact e-mail address to the researchers: Radek Hranický (hranicky@fit.vut.cz).

Besides Brno University of Technology, we might share personal data with other researchers at other Universities or with Free Software Foundation, 51 Franklin St. 5th Floor Boston, MA 02110-1301 USA. This parties will be our processors.

Personal data will be stored for the time that we will prepare a paper analyzing the data which should not exceed five years, during the time such paper is published and for five more years to archive the data, reproduce the measurements. We will create a public data set containing the measurement data but NOT containing IP address and NOT containing UserAgent HTTP header. However, we might accompany the measurement data with geolocation data. Note that an analysis of the measurement data may, theoretically, yield some more information about your behavior during the measurements (like the frequency of the steps). We consider publishing such data as necessary to support our measurement claims. We expect to publish at scientific venues that expect reproducibility. Please note that once such a data set is public, we will have no control on its copies.

To exercise your rights, please, send the researchers (preferred) or the data protection officer your request including the time of the measurement (as precisely as possible), if you were supplying data for the sensor data collection page (not the activity recognition demonstration), include your IP address at which you conducted your measurement and your UserAgent HTTP header. Currently, your UserAgent is:

And your IP address is:

If you think that we process personal data in violation with GDPR, you can lodge complaint at Úřad pro ochranu osobních údajů, Pplk. Sochora 27, 170 00 Praha 7, e-mail posta@uoou.cz, or, if you are located in other EEA country, at your local data protection authority.