한국컴퓨터정보학회논문지 (Journal of the Korea Society of Computer and Information)

한국컴퓨터정보학회 (Korean Society of Computer Information)
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Collecting Health Data from Wearable Devices by Leveraging Salient Features in a Privacy-Preserving Manner

  • Moon, Su-Mee (Dept. of Computer Science, Sangmyung University) ;
  • Kim, Jong-Wook (Dept. of Computer Science, Sangmyung University)
  • 투고 : 2020.08.11
  • 심사 : 2020.09.20
  • 발행 : 2020.10.30
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초록

웨어러블 기기의 발전으로 개인의 건강 상태를 실시간으로 확인하고 위험을 예측할 수 있게 되었다. 예를 들어 심장 질환 환자의 심박수, 심전도가 이상 수치를 보이면 위급 상황을 감지하여 자동으로 보호자에게 연락한다. 이처럼 즉각적인 대처를 가능케 하는 건강 데이터는 생명에 관계되는 만큼 유출되었을 시 심각한 피해를 발생시킨다. 본 연구는 지역 차분 프라이버시 기법을 통해 데이터 소유자의 개인 정보를 보호하면서 데이터를 수집하는 방법을 제안한다. 선행 연구에서는 고정된 k개의 특징 점을 탐색하는 알고리즘으로 전체 데이터가 아닌 특징 점 데이터를 데이터 수집가에게 전송하는 기법을 소개하였다. 이어서 본 연구는 최적의 특징 점 개수 k를 찾는 알고리즘을 이용하여 성능을 최대 75% 향상시키는 방법에 대해 설명할 것이다.

With the development of wearable devices, individuals' health status can be checked in real time and risks can be predicted. For example, an application has been developed to detect an emergency situation of a patient with heart disease and contact a guardian through analysis of health data such as heart rate and electrocardiogram. However, health data is seriously damaging when it is leaked as it relates to life. Therefore, a method to protect personal information is essential in collecting health data, and this study proposes a method of collecting data while protecting the personal information of the data owner through a LDP(Local Differential Privacy). The previous study introduced a technique of transmitting feature point data rather than all data to a data collector as an algorithm for searching for fixed k feature points. Next, this study will explain how to improve the performance by up to 75% using an algorithm that finds the optimal number of feature points k.

키워드

참고문헌

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피인용 문헌

  1. Privacy-Preserving Traffic Volume Estimation by Leveraging Local Differential Privacy vol.26, pp.12, 2020, https://doi.org/10.9708/jksci.2021.26.12.019