2. ããã¾ã ã® ããã¾ã ⢠ãã¼ã½ãã«ãã¼ã¿ã®ãã¼ã¿ãã¼ã¹ã¯ å人IDï¼å¤æ°ã®å±æ§å¤ ã¨ããã¬ã³ã¼ããããªãã¾ãã ⢠å±æ§å¤ã«ã¯è³¼è²·ããåç©ãç¹å®ã®å ´æã®æ»å¨å±¥æ´ã移åå±¥æ´ãè© ä¾¡ããååï¼æ ç»ãªã©ï¼ãããã¾ãã ⢠å人IDãæ¶ãã¦å¿ååãã¦ãã¦ããå°æ°ã®å±æ§å¤ãæ»æ è ã«ç¥ãããã ãã§ãå人èå¥ãã§ãã¦ãã¾ãã¾ãã ⢠ç¨(rare)ãªå±æ§å¤ãç¥ãããã¨é常ã«å±éºã§ãã ⢠ãããã£ãç´æãã¢ãã«åãã¦æ°éçã«è©ä¾¡ãã話ã§ãã 3. ⢠Netflixã®æ ç»è©ä¾¡ãã¼ã¿ãã¼ã¹ã使ã£ãå ¬éã¿ã¹ã¯äºä»¶ï¼ ï Narayanan, A., Shmatikov, V. (2008) Robust De-anonymization of Large Sparse Datasets, Proc. of the 2008 IEEE Symposium on Security and Priva
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