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Geolocation with respect to personal privacy for the Allergy Diary app - a MASK study

D. Samreth S. Arnavielhe 1 F. Ingenrieth A. Bedbrook 1 G. Onorato R. Murray R. Almeida A. Mizani J. M. Fonseca 2 E. Costa 3 J. Malva M. Almeida A. Pereira A. Todo-Bom 4 E. Menditto 5 C. Stellato M. Ventura 6 D. Larenas-Linnemann M. Fuentes-Pérez R. Huerta-Villalobos A. Cruz R. Stelmach J. da Silva 7 R. Emuzyte 8 V. Kvedariene 8 A. Valiulis 8 Isabella Annesi-Maesano I. Bosse 9 P. Demoly 10 P. Devillier 11 F. Fontaine 12 P. Kuna B. Samolinski L. Klimek 13 R. Mösges 14 O. Pfaar 13 S. Shamai 15 M. Bewick D. Ryan A. Sheikh 16 M. Anto V. Cardona 17 J. Mullol 18 A. Valero N. Chavannes J. Fokkens S. Reitsma R. E Roller-Wirnsberger 19 V. Tomazic T. Haahtela 20 S. Toppila-Salmi 20 E. Valovirta 21 M. Makris 22 G. Papadopoulos E. Prokopakis F. Psarros B. Gemicioğlu A. Yorgancioglu C. Bindslev-Jensen E. Eller I. Kull 23 M. Wickman C. Bachert 24 Peter W. Hellings 25 B. Pugin S. Bosnic-Anticevich 26 R. O’hehir 27 V. Kolek M. Sova K. Wehner G. de Vries M. van Eerd D. Laune 28 J. Wittmann J. Bousquet Pascal Poncelet 29 
Abstract : Background: Collecting data on the localization of users is a key issue for the MASK (Mobile Airways Sentinel networK: the Allergy Diary) App. Data anonymization is a method of sanitization for privacy. The European Commission’s Article 29 Working Party stated that geolocation information is personal data. To assess geolocation using the MASK method and to compare two anonymization methods in the MASK database to find an optimal privacy method. Methods: Geolocation was studied for all people who used the Allergy Diary App from December 2015 to November 2017 and who reported medical outcomes. Two different anonymization methods have been evaluated: Noise addition (randomization) and k-anonymity (generalization). Results: Ninety-three thousand one hundred and sixteen days of VAS were collected from 8535 users and 54,500 (58. 5%) were geolocalized, corresponding to 5428 users. Noise addition was found to be less accurate than k-anonymity using MASK data to protect the users’ life privacy. Discussion: k-anonymity is an acceptable method for the anonymization of MASK data and results can be used for other databases.
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D. Samreth, S. Arnavielhe, F. Ingenrieth, A. Bedbrook, G. Onorato, et al.. Geolocation with respect to personal privacy for the Allergy Diary app - a MASK study. World Allergy Organization Journal, BMC, 2018, 11 (1), ⟨10.1186/s40413-018-0194-3⟩. ⟨lirmm-01987859⟩



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