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HISTORY INFORMATION ANONYMIZATION METHOD AND HISTORY INFORMATION ANONYMIZATION DEVICE FOR ANONYMIZING HISTORY INFORMATION

机译:历史信息的非历史化方法及用于历史信息非历史化的历史信息非化装置

摘要

A history information anonymization method includes an association step of associating each of a plurality of pieces of history information collected from a plurality of TVs in a current cycle with a temporary ID associated with a TV at a collection destination; a grouping step of getting together a plurality of IDs into a plurality of groups such that for the IDs in each group, contents of history information associated in the current cycle and in a past cycle are identical; an anonymity judgment step of judging whether each of the plurality of groups satisfies anonymity; and an ID changing step of changing only some of the plurality of temporary IDs associated with the plurality of TVs, when it is judged that any of the plurality of groups does not satisfy anonymity.
机译:历史信息匿名化方法包括关联步骤:将在当前周期中从多个电视收集的多个历史信息中的每一个与与在收集目的地的电视相关联的临时ID相关联;分组步骤,将多个ID组合成多个组,使得对于每个组中的ID,当前周期和过去周期中关联的历史信息的内容相同;匿名判断步骤,判断多个组中的每一个是否满足匿名性;当判断多个组中的任何一个不满足匿名性时,ID更改步骤仅改变与多个TV相关联的多个临时ID中的一些。

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