A random extract from the raw database of call detail records.
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https://figshare.com/articles/dataset/_A_random_extract_from_the_raw_database_of_call_detail_records_/214291
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资源简介：
Each record includes: the random ID number of the phone (not related to the phone or SIM card number); the exact time and date of the call activity; a geographical location which is determined by the precision of a mobile network antenna (Cell ID) that provides the network signal for a call activity.
创建时间：
2012-11-14
