Big data involves the data produced by different devices and applications. Given below are some of the fields that come under the umbrella of Big Data.
- Black Box Data : It is a component of helicopter, airplanes, and jets, etc. It captures voices of the flight crew, recordings of microphones and earphones, and the performance information of the aircraft.
- Social Media Data : Social media such as Facebook and Twitter hold information and the views posted by millions of people across the globe.
- Stock Exchange Data : The stock exchange data holds information about the ‘buy’ and ‘sell’ decisions made on a share of different companies made by the customers.
- Power Grid Data : The power grid data holds information consumed by a particular node with respect to a base station.
- Transport Data : Transport data includes model, capacity, distance and availability of a vehicle.
- Search Engine Data : Search engines retrieve lots of data from different databases.
Thus Big Data includes huge volume, high velocity, and extensible variety of data. The data in it will be of three types.
- Structured data : Relational data.
- Semi Structured data : XML data.
- Unstructured data : Word, PDF, Text, Media Logs.
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