Sometimes we're curious e.g. "who is this woman?"
Does she work in a bank, or studio? Maybe she's a bus driver? ;)
Data science + machine learning tools: Python (pandas, sklearn, matplotlib).
Call Detail Records (CDRs) is cell phone usage information collected by cell phone service providers.
Providers record every voice call or text (SMS) message exchange between two cell phone numbers. Information collected includes:
- calls and messages: phone number, reciprocal phone number, time, duration, length of messages, etc., relational to users' identity.
- cell towers: transceiver station CID, LAC (location area code), etc., relational to latitude and longitude data.
- devices: IMEI, MAC, name and type of device, etc.
- wifis: name, MAC of base station, etc.
- ... and other data for resource provisioning and billing.
It's a comprehensive data, and it's available almost in real-time (within minutes).
We can also do similar EDA to social media's geotagged data.
