Polkuattribuutti-menetelmä harvinaisten prosessivarianttien anonymisointiin
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2022Copyright
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Tutkielmassa selvitetään Suomen ja Euroopan Unionin lainsäädäntöä anonymisoinnin suhteen sekä yleisimpiä anonymisoinnin menetelmien toimintatapaa. Esitämme polkuattribuutti-menetelmän, jolla anonymisointi voidaan kohdentaa ainoastaan hoitopolun yksilöiviin osiin sen sijaan, että koko tapahtumarivi tai hoitopolku sensuroitaisiin osana anonymisointia. Menetelmän toimivuutta selvitetään kokeellisesti generoidulla datalla ja havaitaan, että polkuattribuutti-menetelmällä anonymisointu data korreloi hyvin vahvasti alkuperäisen aineiston kanssa. In the study we explore the legal requirements for anonymization in Finland and the European union. We also cover the mathematical basis and function of the most popular anonymization methods. We present a path attribute -method for anonymization where one can pinpoint anonymization to identifying nodes of the care pathway instead of censoring the entire event or the entire care pathway as a part of the anonymization process. We experiment with the validity of the method with generated data and we find that the data anonymized using the path attribute -method correlates strongly with the original data.
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