데이터 특성 분석 기반 프라이버시 모델 추천 시스템
Privacy Model Recommendation System Based on Data Feature Analysis
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초록
프라이버시 모델이란 프라이버시 공격을 통한 개인정보의 유출 가능성과 위험 정도를 정량적으로 제한하는 기법이다. 대표적인 모델로 k-익명성, l-다양성, t-근접성, 차분 프라이버시 등이 있다. 지금까지 많은 프라이버시 모델들이 연구되어 왔지만, 주어진 데이터에 대해 가장 적합한 모델을선택하는 문제에 대한 연구는 미흡하다. 본 연구에서는 개인정보 유출 문제를 막기 위한 최적의프라이버시 모델 추천 시스템을 개발한다. 본 논문에서는 프라이버시 모델 선택 시 고려해야 할데이터 특성(예: 데이터 타입, 분포, 빈도, 범위 등)을 분석하고 데이터 특성과 모델 간의 연관관계정보를 포함하는 프라이버시 모델 배경지식에 기반한 최적 모델을 추천한다. 마지막으로 타당성과 유용성을 검증하기 위해 추천 프로토타입 시스템을 구현하였다.
Abstract
A privacy model is a technique that quantitatively restricts the possibility and degree of privacy breaches through privacy attacks. Representative models include k-anonymity, l-diversity, t-closeness, and differential privacy. While many privacy models have been studied, research on selecting the most suitable model for a given dataset has been relatively limited. In this study, we develop a system for recommending the suitable privacy model to prevent privacy breaches. To achieve this, we analyze the data features that need to be considered when selecting a model, such as data type, distribution, frequency, and range. Based on privacy model background knowledge that includes information about the relationships between data features and models, we recommend the most appropriate model. Finally, we validate the feasibility and usefulness by implementing a recommendation prototype system.
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